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Chapter 2. Extensions reference

This chapter provides reference information about Camel Extensions for Quarkus.

2.1. AMQP
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Messaging with AMQP protocol using Apache QPid Client.

2.1.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.1.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-amqp</artifactId>
</dependency>
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2.1.3. Usage
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2.1.3.1. Message mapping with org.w3c.dom.Node
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The Camel AMQP component supports message mapping between javax.jms.Message and org.apache.camel.Message. When wanting to convert a Camel message body type of org.w3c.dom.Node, you must ensure that the camel-quarkus-jaxp extension is present on the classpath.

2.1.3.2. Native mode support for javax.jms.ObjectMessage
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When sending JMS message payloads as javax.jms.ObjectMessage, you must annotate the relevant classes to be registered for serialization with @RegisterForReflection(serialization = true). Note that this extension automatically sets quarkus.camel.native.reflection.serialization-enabled = true for you. Refer to the native mode user guide for more information.

2.1.4. Camel Quarkus limitations
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2.1.4.1. Connection Pooling
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JMS connection pooling isn’t supported yet since there is still an open issue with quarkus-qpid-jms.

2.1.5. transferException option in native mode
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To use the transferException option in native mode, you must enable support for object serialization. Refer to the native mode user guide for more information.

You will also need to enable serialization for the exception classes that you intend to serialize. For example. 

@RegisterForReflection(targets = { IllegalStateException.class, MyCustomException.class }, serialization = true)
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2.1.6. Additional Camel Quarkus configuration
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The extension leverages the Quarkus Qpid JMS extension. A ConnectionFactory bean is automatically created and wired into the AMQP component for you. The connection factory can be configured via the Quarkus Qpid JMS configuration options.

2.2. Attachments
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Support for attachments on Camel messages

2.2.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.2.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-attachments</artifactId>
</dependency>
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2.3. Avro
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Serialize and deserialize messages using Apache Avro binary data format.

2.3.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.3.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-avro</artifactId>
</dependency>
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2.3.3. Additional Camel Quarkus configuration
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Beyond standard usages known from vanilla Camel, Camel Quarkus adds the possibility to parse the Avro schema at build time both in JVM and Native mode.

The approach to generate Avro classes from Avro schema files is the one coined by the quarkus-avro extension. It requires the following:

  1. Store *.avsc files in a folder named src/main/avro or src/test/avro

  2. In addition to the usual build goal of quarkus-maven-plugin, add the generate-code goal: 

    <plugin>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-maven-plugin</artifactId>
    <executions>
        <execution>
            <id>generate-code-and-build</id>
            <goals>
                <goal>generate-code</goal>
                <goal>build</goal>
            </goals>
        </execution>
    </executions>
</plugin>
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Please see a working configuration in Camel Quarkus Avro integration test and Quarkus Avro integration test.

2.4. AWS 2 DynamoDB
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Store and retrieve data from AWS DynamoDB service or receive messages from AWS DynamoDB Stream using AWS SDK version 2.x.

2.4.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.4.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-ddb</artifactId>
</dependency>
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2.4.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.4.4. Additional Camel Quarkus configuration
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2.4.4.1. Optional integration with Quarkus Amazon DynamoDB
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If desired, it is possible to use the Quarkus Amazon DynamoDB extension in conjunction with Camel Quarkus AWS 2 DynamoDB. Note that this is fully optional and not mandatory at all. Please follow the Quarkus documentation but beware of the following caveats:

  1. The client type apache has to be selected by configuring the following property: 

    quarkus.dynamodb.sync-client.type=apache
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  2. The DynamoDbClient has to be made "unremovable" in the sense of Quarkus CDI reference so that Camel Quarkus is able to look it up at runtime. You can reach that e.g. by adding a dummy bean injecting DynamoDbClient: 

    import javax.enterprise.context.ApplicationScoped;
import io.quarkus.arc.Unremovable;
import software.amazon.awssdk.services.dynamodb.DynamoDbClient;

@ApplicationScoped
@Unremovable
class UnremovableDynamoDbClient {
    @Inject
    DynamoDbClient dynamoDbClient;
}
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2.5. AWS 2 Kinesis
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Consume and produce records from AWS Kinesis Streams using AWS SDK version 2.x.

2.5.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.5.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-kinesis</artifactId>
</dependency>
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2.5.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.6. AWS 2 Lambda
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Manage and invoke AWS Lambda functions using AWS SDK version 2.x.

2.6.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.6.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-lambda</artifactId>
</dependency>
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2.6.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.6.4. Additional Camel Quarkus configuration
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Quarkus-amazon-lambda extension allows you to use Quarkus to build your AWS Lambdas, whereas Camel component manages (deploy, undeploy, …​) existing functions. Therefore, it is not possible to use quarkus-amazon-lambda as a client for Camel aws2-lambda extension.

2.7. AWS 2 S3 Storage Service
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Store and retrieve objects from AWS S3 Storage Service using AWS SDK version 2.x.

2.7.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.7.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-s3</artifactId>
</dependency>
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2.7.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.7.4. Additional Camel Quarkus configuration
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2.7.4.1. Optional integration with Quarkus Amazon S3
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If desired, it is possible to use the Quarkus Amazon S3 extension in conjunction with Camel Quarkus AWS 2 S3 Storage Service. Note that this is fully optional and not mandatory at all. Please follow the Quarkus documentation but beware of the following caveats:

  1. The client type apache has to be selected by configuring the following property: 

    quarkus.s3.sync-client.type=apache
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  2. The S3Client has to be made "unremovable" in the sense of Quarkus CDI reference so that Camel Quarkus is able to look it up at runtime. You can reach that e.g. by adding a dummy bean injecting S3Client: 

    import javax.enterprise.context.ApplicationScoped;
import io.quarkus.arc.Unremovable;
import software.amazon.awssdk.services.s3.S3Client;

@ApplicationScoped
@Unremovable
class UnremovableS3Client {
    @Inject
    S3Client s3Client;
}
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2.8. AWS 2 Simple Notification System (SNS)
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Send messages to an AWS Simple Notification Topic using AWS SDK version 2.x.

2.8.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.8.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-sns</artifactId>
</dependency>
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2.8.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.8.4. Additional Camel Quarkus configuration
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2.8.4.1. Optional integration with Quarkus Amazon SNS
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If desired, it is possible to use the Quarkus Amazon SNS extension in conjunction with Camel Quarkus AWS 2 Simple Notification System (SNS). Note that this is fully optional and not mandatory at all. Please follow the Quarkus documentation but beware of the following caveats:

  1. The client type apache has to be selected by configuring the following property: 

    quarkus.sns.sync-client.type=apache
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  2. The SnsClient has to be made "unremovable" in the sense of Quarkus CDI reference so that Camel Quarkus is able to look it up at runtime. You can reach that e.g. by adding a dummy bean injecting SnsClient: 

    import javax.enterprise.context.ApplicationScoped;
import io.quarkus.arc.Unremovable;
import software.amazon.awssdk.services.sns.SnsClient;

@ApplicationScoped
@Unremovable
class UnremovableSnsClient {
    @Inject
    SnsClient snsClient;
}
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2.9. AWS 2 Simple Queue Service (SQS)
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Send and receive messages to/from AWS SQS service using AWS SDK version 2.x.

2.9.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.9.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-sqs</artifactId>
</dependency>
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2.9.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.9.4. Additional Camel Quarkus configuration
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2.9.4.1. Optional integration with Quarkus Amazon SQS
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If desired, it is possible to use the Quarkus Amazon SQS extension in conjunction with Camel Quarkus AWS 2 Simple Queue Service (SQS). Note that this is fully optional and not mandatory at all. Please follow the Quarkus documentation but beware of the following caveats:

  1. The client type apache has to be selected by configuring the following property: 

    quarkus.sqs.sync-client.type=apache
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  2. The SqsClient has to be made "unremovable" in the sense of Quarkus CDI reference so that Camel Quarkus is able to look it up at runtime. You can reach that e.g. by adding a dummy bean injecting SqsClient: 

    import javax.enterprise.context.ApplicationScoped;
import io.quarkus.arc.Unremovable;
import software.amazon.awssdk.services.sqs.SqsClient;

@ApplicationScoped
@Unremovable
class UnremovableSqsClient {
    @Inject
    SqsClient sqsClient;
}
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2.10. Azure Storage Blob Service
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Store and retrieve blobs from Azure Storage Blob Service using SDK v12.

2.10.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.10.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-azure-storage-blob</artifactId>
</dependency>
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2.10.3. Usage
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2.10.3.1. Micrometer metrics support
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If you wish to enable the collection of Micrometer metrics for the Reactor Netty transports, then you should declare a dependency on quarkus-micrometer to ensure that they are available via the Quarkus metrics HTTP endpoint. 

<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-micrometer</artifactId>
</dependency>
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2.10.4. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.11. Azure Storage Queue Service
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The azure-storage-queue component is used for storing and retrieving the messages to/from Azure Storage Queue using Azure SDK v12.

2.11.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.11.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-azure-storage-queue</artifactId>
</dependency>
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2.11.3. Usage
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2.11.3.1. Micrometer metrics support
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If you wish to enable the collection of Micrometer metrics for the Reactor Netty transports, then you should declare a dependency on quarkus-micrometer to ensure that they are available via the Quarkus metrics HTTP endpoint. 

<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-micrometer</artifactId>
</dependency>
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2.11.4. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.12. Bean Validator
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Validate the message body using the Java Bean Validation API.

2.12.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.12.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-bean-validator</artifactId>
</dependency>
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2.12.3. Usage
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2.12.3.1. Configuring the ValidatorFactory
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Implementation of this extension leverages the Quarkus Hibernate Validator extension.

Therefore it is not possible to configure the ValidatorFactory by Camel’s properties (constraintValidatorFactory, messageInterpolator, traversableResolver, validationProviderResolver and validatorFactory).

You can configure the ValidatorFactory by the creation of beans which will be injected into the default ValidatorFactory (created by Quarkus). See the Quarkus CDI documentation for more information.

2.12.3.2. Custom validation groups in native mode
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When using custom validation groups in native mode, all the interfaces need to be registered for reflection (see the documentation).

Example: 

@RegisterForReflection
public interface OptionalChecks {
}
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2.12.4. Camel Quarkus limitations
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It is not possible to describe your constraints as XML (by providing the file META-INF/validation.xml), only Java annotations are supported. This is caused by the limitation of the Quarkus Hibernate Validator extension (see the issue).

2.13. Bean
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Invoke methods of Java beans

2.13.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.13.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-bean</artifactId>
</dependency>
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2.13.3. Usage
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Except for invoking methods of beans available in Camel registry, Bean component and Bean method language can also invoke Quarkus CDI beans.

2.14. Bindy
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Marshal and unmarshal between POJOs on one side and Comma separated values (CSV), fixed field length or key-value pair (KVP) formats on the other side using Camel Bindy

2.14.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.14.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-bindy</artifactId>
</dependency>
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2.14.3. Camel Quarkus limitations
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When using camel-quarkus-bindy in native mode, only the build machine’s locale is supported.

For instance, on build machines with french locale, the code below: 

BindyDataFormat dataFormat = new BindyDataFormat();
dataFormat.setLocale("ar");
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formats numbers the arabic way in JVM mode as expected. However, it formats numbers the french way in native mode.

Without further tuning, the build machine’s default locale would be used. Another locale could be specified with the quarkus.native.user-language and quarkus.native.user-country configuration properties.

2.15. Browse
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Inspect the messages received on endpoints supporting BrowsableEndpoint.

2.15.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.15.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-browse</artifactId>
</dependency>
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2.16. Cassandra CQL
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Integrate with Cassandra 2.0 using the CQL3 API (not the Thrift API). Based on Cassandra Java Driver provided by DataStax.

2.16.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.16.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-cassandraql</artifactId>
</dependency>
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2.16.3. Additional Camel Quarkus configuration
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2.16.3.1. Cassandra aggregation repository in native mode
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In order to use Cassandra aggregation repositories like CassandraAggregationRepository in native mode, you must enable native serialization support.

In addition, if your exchange bodies are custom types, then they must be registered for serialization by annotating their class declaration with @RegisterForReflection(serialization = true).

2.17. Control Bus
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Manage and monitor Camel routes.

2.17.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.17.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-controlbus</artifactId>
</dependency>
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2.17.3. Usage
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2.17.3.1. Statistics
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When using the stats command endpoint, the camel-quarkus-management extension must be added as a project dependency to enable JMX. Maven users will have to add the following to their pom.xml: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-management</artifactId>
</dependency>
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2.17.3.2. Languages
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The following languages are supported for use in the Control Bus extension in Camel Extensions for Quarkus:

2.17.3.2.1. Bean
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The Bean language can be used to invoke a method on a bean to control the state of routes. The org.apache.camel.quarkus:camel-quarkus-bean extension must be added to the classpath. Maven users must add the following dependency to the POM: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-bean</artifactId>
</dependency>
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In native mode, the bean class must be annotated with @RegisterForReflection.

2.17.3.2.2. Simple
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The Simple language can be used to control the state of routes. The following example uses a ProducerTemplate to stop a route with the id foo: 

template.sendBody(
    "controlbus:language:simple",
    "${camelContext.getRouteController().stopRoute('foo')}"
);
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To use the OGNL notation, the org.apache.camel.quarkus:camel-quarkus-bean extension must be added as a dependency.

In native mode, the classes used in the OGNL notation must be registered for reflection. In the above code snippet, the org.apache.camel.spi.RouteController class returned from camelContext.getRouteController() must be registered. As this is a third-party class, it cannot be annotated with @RegisterForReflection directly - instead you can annotate a different class and specifying the target classes to register. For example, the class defining the Camel routes could be annotated with @RegisterForReflection(targets = { org.apache.camel.spi.RouteController.class }).

Alternatively, add the following line to your src/main/resources/application.properties: 

quarkus.camel.native.reflection.include-patterns = org.apache.camel.spi.RouteController
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2.17.4. Camel Quarkus limitations
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2.17.4.1. Statistics
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The stats action is not available in native mode as JMX is not supported on GraalVM. Therefore, attempting to build a native image with the camel-quarkus-management extension on the classpath will result in a build failure.

This feature is not supported in Camel Extensions for Quarkus.

2.18. Core
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Camel core functionality and basic Camel languages/ Constant, ExchangeProperty, Header, Ref, Simple and Tokenize

2.18.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.18.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-core</artifactId>
</dependency>
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2.18.3. Additional Camel Quarkus configuration
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2.18.3.1. Simple language
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2.18.3.1.1. Using the OGNL notation
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When using the OGNL notation from the simple language, the camel-quarkus-bean extension should be used.

For instance, the simple expression below is accessing the getAddress() method on the message body of type Client. 

---
simple("${body.address}")
---
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In such a situation, one should take an additional dependency on the camel-quarkus-bean extension as described here. Note that in native mode, some classes may need to be registered for reflection. In the example above, the Client class needs to be registered for reflection.

2.18.3.1.2. Using dynamic type resolution in native mode
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When dynamically resolving a type from simple expressions like:

  • simple("${mandatoryBodyAs(TYPE)}")
  • simple("${type:package.Enum.CONSTANT}")
  • from("…​").split(bodyAs(TYPE.class))
  • simple("${body} is TYPE")

It may be needed to register some classes for reflection manually.

For instance, the simple expression below is dynamically resolving the type java.nio.ByteBuffer at runtime: 

---
simple("${body} is 'java.nio.ByteBuffer'")
---
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As such, the class java.nio.ByteBuffer needs to be registered for reflection.

If your route is supposed to load a Simple script from classpath, like in the following example 

from("direct:start").transform().simple("resource:classpath:mysimple.txt");
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then you need to use Quarkus quarkus.native.resources.includes property to include the resource in the native executable as demonstrated below: 

quarkus.native.resources.includes = mysimple.txt
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2.18.3.1.4. Configuring a custom bean via properties in native mode
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When specifying a custom bean via properties in native mode with configuration like #class:* or #type:*, it may be needed to register some classes for reflection manually.

For instance, the custom bean definition below involves the use of reflection for bean instantiation and setter invocation: 

---
camel.beans.customBeanWithSetterInjection = #class:org.example.PropertiesCustomBeanWithSetterInjection
camel.beans.customBeanWithSetterInjection.counter = 123
---
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As such, the class PropertiesCustomBeanWithSetterInjection needs to be registered for reflection, note that field access could be omitted in this case.

Expand
Configuration propertyTypeDefault

lock quarkus.camel.bootstrap.enabled

When set to true, the CamelRuntime will be started automatically.

boolean

true

lock quarkus.camel.service.discovery.exclude-patterns

A comma-separated list of Ant-path style patterns to match Camel service definition files in the classpath. The services defined in the matching files will not be discoverable via the org.apache.camel.spi.FactoryFinder mechanism. The excludes have higher precedence than includes. The excludes defined here can also be used to veto the discoverability of services included by Camel Quarkus extensions. Example values: META-INF/services/org/apache/camel/foo/*,META-INF/services/org/apache/camel/foo/**/bar

string

 

lock quarkus.camel.service.discovery.include-patterns

A comma-separated list of Ant-path style patterns to match Camel service definition files in the classpath. The services defined in the matching files will be discoverable via the org.apache.camel.spi.FactoryFinder mechanism unless the given file is excluded via exclude-patterns. Note that Camel Quarkus extensions may include some services by default. The services selected here added to those services and the exclusions defined in exclude-patterns are applied to the union set. Example values: META-INF/services/org/apache/camel/foo/*,META-INF/services/org/apache/camel/foo/**/bar

string

 

lock quarkus.camel.service.registry.exclude-patterns

A comma-separated list of Ant-path style patterns to match Camel service definition files in the classpath. The services defined in the matching files will not be added to Camel registry during application’s static initialization. The excludes have higher precedence than includes. The excludes defined here can also be used to veto the registration of services included by Camel Quarkus extensions. Example values: META-INF/services/org/apache/camel/foo/*,META-INF/services/org/apache/camel/foo/**/bar

string

 

lock quarkus.camel.service.registry.include-patterns

A comma-separated list of Ant-path style patterns to match Camel service definition files in the classpath. The services defined in the matching files will be added to Camel registry during application’s static initialization unless the given file is excluded via exclude-patterns. Note that Camel Quarkus extensions may include some services by default. The services selected here added to those services and the exclusions defined in exclude-patterns are applied to the union set. Example values: META-INF/services/org/apache/camel/foo/*,META-INF/services/org/apache/camel/foo/**/bar

string

 

lock quarkus.camel.runtime-catalog.components

If true the Runtime Camel Catalog embedded in the application will contain JSON schemas of Camel components available in the application; otherwise component JSON schemas will not be available in the Runtime Camel Catalog and any attempt to access those will result in a RuntimeException. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to false except for making the behavior consistent with native mode.

boolean

true

lock quarkus.camel.runtime-catalog.languages

If true the Runtime Camel Catalog embedded in the application will contain JSON schemas of Camel languages available in the application; otherwise language JSON schemas will not be available in the Runtime Camel Catalog and any attempt to access those will result in a RuntimeException. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to false except for making the behavior consistent with native mode.

boolean

true

lock quarkus.camel.runtime-catalog.dataformats

If true the Runtime Camel Catalog embedded in the application will contain JSON schemas of Camel data formats available in the application; otherwise data format JSON schemas will not be available in the Runtime Camel Catalog and any attempt to access those will result in a RuntimeException. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to false except for making the behavior consistent with native mode.

boolean

true

lock quarkus.camel.runtime-catalog-models

If true the Runtime Camel Catalog embedded in the application will contain JSON schemas of Camel EIP models available in the application; otherwise EIP model JSON schemas will not be available in the Runtime Camel Catalog and any attempt to access those will result in a RuntimeException. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to false except for making the behavior consistent with native mode.

boolean

true

lock quarkus.camel.routes-discovery.enabled

Enable automatic discovery of routes during static initialization.

boolean

true

lock quarkus.camel.routes-discovery.exclude-patterns

Used for exclusive filtering scanning of RouteBuilder classes. The exclusive filtering takes precedence over inclusive filtering. The pattern is using Ant-path style pattern. Multiple patterns can be specified separated by comma. For example to exclude all classes starting with Bar use: **/Bar* To exclude all routes form a specific package use: com/mycompany/bar/* To exclude all routes form a specific package and its sub-packages use double wildcards: com/mycompany/bar/** And to exclude all routes from two specific packages use: com/mycompany/bar/*,com/mycompany/stuff/*

string

 

lock quarkus.camel.routes-discovery.include-patterns

Used for inclusive filtering scanning of RouteBuilder classes. The exclusive filtering takes precedence over inclusive filtering. The pattern is using Ant-path style pattern. Multiple patterns can be specified separated by comma. For example to include all classes starting with Foo use: **/Foo* To include all routes form a specific package use: com/mycompany/foo/* To include all routes form a specific package and its sub-packages use double wildcards: com/mycompany/foo/** And to include all routes from two specific packages use: com/mycompany/foo/*,com/mycompany/stuff/*

string

 

lock quarkus.camel.native.resources.exclude-patterns

Replaced by quarkus.native.resources.excludes in Camel Quarkus 2.0.0. Using this property throws an exception at build time.

string

 

lock quarkus.camel.native.resources.include-patterns

Replaced by quarkus.native.resources.includes in Camel Quarkus 2.0.0. Using this property throws an exception at build time.

string

 

lock quarkus.camel.native.reflection.exclude-patterns

A comma separated list of Ant-path style patterns to match class names that should be excluded from registering for reflection. Use the class name format as returned by the java.lang.Class.getName() method: package segments delimited by period . and inner classes by dollar sign $. This option narrows down the set selected by include-patterns. By default, no classes are excluded. This option cannot be used to unregister classes which have been registered internally by Quarkus extensions.

string

 

lock quarkus.camel.native.reflection.include-patterns

A comma separated list of Ant-path style patterns to match class names that should be registered for reflection. Use the class name format as returned by the java.lang.Class.getName() method: package segments delimited by period . and inner classes by dollar sign $. By default, no classes are included. The set selected by this option can be narrowed down by exclude-patterns. Note that Quarkus extensions typically register the required classes for reflection by themselves. This option is useful in situations when the built in functionality is not sufficient. Note that this option enables the full reflective access for constructors, fields and methods. If you need a finer grained control, consider using io.quarkus.runtime.annotations.RegisterForReflection annotation in your Java code. For this option to work properly, at least one of the following conditions must be satisfied: - There are no wildcards (* or /) in the patterns - The artifacts containing the selected classes contain a Jandex index (META-INF/jandex.idx) - The artifacts containing the selected classes are registered for indexing using the quarkus.index-dependency.* family of options in application.properties - e.g. quarkus.index-dependency.my-dep.group-id = org.my-group quarkus.index-dependency.my-dep.artifact-id = my-artifact where my-dep is a label of your choice to tell Quarkus that org.my-group and with my-artifact belong together.

string

 

lock quarkus.camel.native.reflection.serialization-enabled

If true, basic classes are registered for serialization; otherwise basic classes won’t be registered automatically for serialization in native mode. The list of classes automatically registered for serialization can be found in CamelSerializationProcessor.BASE_SERIALIZATION_CLASSES. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to true except for making the behavior consistent with native mode.

boolean

false

lock quarkus.camel.csimple.on-build-time-analysis-failure

What to do if it is not possible to extract CSimple expressions from a route definition at build time.

org.apache.camel.quarkus.core.CamelConfig.FailureRemedy

warn

lock quarkus.camel.event-bridge.enabled

Whether to enable the bridging of Camel events to CDI events. This allows CDI observers to be configured for Camel events. E.g. those belonging to the org.apache.camel.quarkus.core.events, org.apache.camel.quarkus.main.events & org.apache.camel.impl.event packages. Note that this configuration item only has any effect when observers configured for Camel events are present in the application.

boolean

true

lock quarkus.camel.source-location-enabled

Build time configuration options for enable/disable camel source location

boolean

false

lock quarkus.camel.main.shutdown.timeout

A timeout (with millisecond precision) to wait for CamelMain#stop() to finish

java.time.Duration

PT3S

lock quarkus.camel.main.arguments.on-unknown

The action to take when CamelMain encounters an unknown argument. fail - Prints the CamelMain usage statement and throws a RuntimeException ignore - Suppresses any warnings and the application startup proceeds as normal warn - Prints the CamelMain usage statement but allows the application startup to proceed as normal

org.apache.camel.quarkus.core.CamelConfig.FailureRemedy

warn

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.19. Cron
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A generic interface for triggering events at times specified through the Unix cron syntax.

2.19.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.19.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-cron</artifactId>
</dependency>
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2.19.3. Additional Camel Quarkus configuration
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The cron component is a generic interface component, as such Camel Quarkus users will need to use the cron extension together with another extension offering an implementation.

2.20. CXF
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Expose SOAP WebServices using Apache CXF or connect to external WebServices using CXF WS client.

2.20.1. What’s inside
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There are two URI formats for this endpoint:

cxf:bean:cxfEndpoint
cxfEndpoint represents a bean ID that references a bean in the Spring bean registry.
cxf://someAddress
someAddress specifies the CXF endpoint’s address.

See the CXF component for usage and configuration details.

2.20.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-cxf-soap</artifactId>
</dependency>
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2.20.3. Usage
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2.20.3.1. General
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camel-quarkus-cxf-soap uses extensions from the CXF Extensions for Quarkus project - quarkus-cxf. This means that quarkus-cxf provides the set of supported use cases and WS specifications.

Important

To learn about supported use cases and WS specifications, see the Quarkus CXF Reference.

2.20.3.2. Dependency management
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Camel Extensions for Quarkus manages the CXF and quarkus-cxf versions. You do not need to select compatible versions for those projects.

2.20.3.3. Client
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With camel-quarkus-cxf-soap (no additional dependencies required), you can use CXF clients as producers in Camel routes: 

import org.apache.camel.builder.RouteBuilder;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.SessionScoped;
import javax.enterprise.inject.Produces;
import javax.inject.Named;

@ApplicationScoped
public class CxfSoapClientRoutes extends RouteBuilder {

    @Override
    public void configure() {

        /* You can either configure the client inline */
        from("direct:cxfUriParamsClient")
                .to("cxf://http://localhost:8082/calculator-ws?wsdlURL=wsdl/CalculatorService.wsdl&dataFormat=POJO&serviceClass=org.foo.CalculatorService");

        /* Or you can use a named bean produced below by beanClient() method */
        from("direct:cxfBeanClient")
                .to("cxf:bean:beanClient?dataFormat=POJO");

    }

    @Produces
    @SessionScoped
    @Named
    CxfEndpoint beanClient() {
        final CxfEndpoint result = new CxfEndpoint();
        result.setServiceClass(CalculatorService.class);
        result.setAddress("http://localhost:8082/calculator-ws");
        result.setWsdlURL("wsdl/CalculatorService.wsdl"); // a resource in the class path
        return result;
    }
}
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The CalculatorService may look like the following: 

import javax.jws.WebMethod;
import javax.jws.WebService;

@WebService(targetNamespace = CalculatorService.TARGET_NS)
public interface CalculatorService {

    public static final String TARGET_NS = "http://acme.org/wscalculator/Calculator";

    @WebMethod
    public int add(int intA, int intB);

    @WebMethod
    public int subtract(int intA, int intB);

    @WebMethod
    public int divide(int intA, int intB);

    @WebMethod
    public int multiply(int intA, int intB);
}
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Note

JAX-WS annotations are required. The Simple CXF Frontend is not supported. Complex parameter types require JAXB annotations to work properly in native mode.

Tip

You can test this client application against the quay.io/l2x6/calculator-ws:1.2 container that implements this service endpoint interface: 

$ docker run -p 8082:8080 quay.io/l2x6/calculator-ws:1.2
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Note

quarkus-cxf supports injecting SOAP clients using @io.quarkiverse.cxf.annotation.CXFClient annotation. Refer to the SOAP Clients chapter of the quarkus-cxf user guide for more details.

2.20.3.4. Server
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With camel-quarkus-cxf-soap, you can expose SOAP endpoints as consumers in Camel routes. No additional dependencies are required for this use case. 

import org.apache.camel.builder.RouteBuilder;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Produces;
import javax.inject.Named;

@ApplicationScoped
public class CxfSoapRoutes extends RouteBuilder {

    @Override
    public void configure() {
        /* A CXF Service configured through a CDI bean */
        from("cxf:bean:helloBeanEndpoint")
                .setBody().simple("Hello ${body} from CXF service");

        /* A CXF Service configured through Camel URI parameters */
        from("cxf:///hello-inline?wsdlURL=wsdl/HelloService.wsdl&serviceClass=org.foo.HelloService")
                        .setBody().simple("Hello ${body} from CXF service");
    }

    @Produces
    @ApplicationScoped
    @Named
    CxfEndpoint helloBeanEndpoint() {
        final CxfEndpoint result = new CxfEndpoint();
        result.setServiceClass(HelloService.class);
        result.setAddress("/hello-bean");
        result.setWsdlURL("wsdl/HelloService.wsdl");
        return result;
    }
}
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The path for these two services depends on the value of the quarkus.cxf.path configuration property which can for example be set in application.properties:

application.properties

quarkus.cxf.path = /soap-services
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With this configuration in place, you can access the two services at http://localhost:8080/soap-services/hello-bean and http://localhost:8080/soap-services/hello-inline, respectively.

You can access the WSDL by adding ?wsdl to the above URLs.

Important

Do not use quarkus.cxf.path = / in your application unless you are 100% sure no other extension will want to expose HTTP endpoints.

As of CEQ 2.13.3 the default value of quarkus.cxf.path is /. The default value will prevent other extensions from exposing HTTP endpoints.

This affects RESTEasy, Vert.x, SmallRye Health and others. If you use any of them, you should set quarkus.cxf.path to some specific path, such as /services, which is the default starting with Camel Extensions for Quarkus 3.0.0 / quarkus-cxf 2.0.0.

Note

quarkus-cxf supports alternative ways of exposing SOAP endpoints. Refer to the SOAP Services chapter of the quarkus-cxf user guide for more details.

2.20.3.5. Logging of requests and responses
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You can enable verbose logging of SOAP messages for clients and servers with org.apache.cxf.ext.logging.LoggingFeature: 

import org.apache.camel.builder.RouteBuilder;
import org.apache.cxf.ext.logging.LoggingFeature;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.SessionScoped;
import javax.enterprise.inject.Produces;
import javax.inject.Named;

@ApplicationScoped
public class MyBeans {

    @Produces
    @ApplicationScoped
    @Named("prettyLoggingFeature")
    public LoggingFeature prettyLoggingFeature() {
        final LoggingFeature result = new LoggingFeature();
        result.setPrettyLogging(true);
        return result;
    }

    @Inject
    @Named("prettyLoggingFeature")
    LoggingFeature prettyLoggingFeature;

    @Produces
    @SessionScoped
    @Named
    CxfEndpoint cxfBeanClient() {
        final CxfEndpoint result = new CxfEndpoint();
        result.setServiceClass(CalculatorService.class);
        result.setAddress("https://acme.org/calculator");
        result.setWsdlURL("wsdl/CalculatorService.wsdl");
        result.getFeatures().add(prettyLoggingFeature);
        return result;
    }

    @Produces
    @ApplicationScoped
    @Named
    CxfEndpoint helloBeanEndpoint() {
        final CxfEndpoint result = new CxfEndpoint();
        result.setServiceClass(HelloService.class);
        result.setAddress("/hello-bean");
        result.setWsdlURL("wsdl/HelloService.wsdl");
        result.getFeatures().add(prettyLoggingFeature);
        return result;
    }
}
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Note

io.quarkiverse.cxf:quarkus-cxf-rt-features-logging provides support for org.apache.cxf.ext.logging.LoggingFeature as a camel-quarkus-cxf-soap dependency.

You do not need to add it explicitly to your application.

2.20.3.6. WS Specifications
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The extent of supported WS specifications is given by the Quarkus CXF project.

Important

To learn about supported use cases and WS specifications, see the Quarkus CXF Reference.

If your application requires some other WS specification, you must add a Quarkus CXF dependency covering it.

In Camel Extensions for Quarkus we support all extensions listed with the support level Stable.

Tip

You can use integration tests as executable examples of applications that implement various WS specifications:

2.20.3.7. Tooling
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quarkus-cxf wraps the following two CXF tools:

Important

For wsdl2Java to work properly, your application must directly depend on io.quarkiverse.cxf:quarkus-cxf.

Tip

While wsdlvalidator is not supported, you can use wsdl2Java with the following configuration in application.properties to validate your WSDLs:

application.properties

quarkus.cxf.codegen.wsdl2java.additional-params = -validate
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2.21. Data Format
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Use a Camel Data Format as a regular Camel Component.

For more details of the supported data formats in Camel Extensions for Quarkus, see Supported Data Formats.

2.21.1. What’s inside
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Refer to the above link for usage and configuration details.

2.21.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-dataformat</artifactId>
</dependency>
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2.22. Dataset
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Provide data for load and soak testing of your Camel application.

2.22.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.22.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-dataset</artifactId>
</dependency>
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2.23. Direct
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Call another endpoint from the same Camel Context synchronously.

2.23.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.23.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-direct</artifactId>
</dependency>
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2.24. FHIR
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Exchange information in the healthcare domain using the FHIR (Fast Healthcare Interoperability Resources) standard. Marshall and unmarshall FHIR objects to/from JSON. Marshall and unmarshall FHIR objects to/from XML.

2.24.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.24.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-fhir</artifactId>
</dependency>
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2.24.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.24.4. Additional Camel Quarkus configuration
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By default, only FHIR versions R4 & DSTU3 are enabled in native mode, since they are the default values on the FHIR component and DataFormat.

Expand
Configuration propertyTypeDefault

lock quarkus.camel.fhir.enable-dstu2

Enable FHIR DSTU2 Specs in native mode.

boolean

false

lock quarkus.camel.fhir.enable-dstu2_hl7org

Enable FHIR DSTU2_HL7ORG Specs in native mode.

boolean

false

lock quarkus.camel.fhir.enable-dstu2_1

Enable FHIR DSTU2_1 Specs in native mode.

boolean

false

lock quarkus.camel.fhir.enable-dstu3

Enable FHIR DSTU3 Specs in native mode.

boolean

false

lock quarkus.camel.fhir.enable-r4

Enable FHIR R4 Specs in native mode.

boolean

true

lock quarkus.camel.fhir.enable-r5

Enable FHIR R5 Specs in native mode.

boolean

false

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.25. File
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Read and write files.

2.25.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.25.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-file</artifactId>
</dependency>
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2.25.3. Additional Camel Quarkus configuration
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When the same route is deployed on multiple JVMs, it could be interesting to use this extension in conjunction with the Master one. In such a setup, a single consumer will be active at a time across the whole camel master namespace.

For instance, having the route below deployed on multiple JVMs: 

from("master:ns:timer:test?period=100").log("Timer invoked on a single JVM at a time");
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It’s possible to enable the file cluster service with a property like below: 

quarkus.camel.cluster.file.enabled = true
quarkus.camel.cluster.file-root = target/cluster-folder-where-lock-file-will-be-held
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As a result, a single consumer will be active across the ns camel master namespace. It means that, at a given time, only a single timer will generate exchanges across all JVMs. In other words, messages will be logged every 100ms on a single JVM at a time.

The file cluster service could further be tuned by tweaking quarkus.camel.cluster.file.* properties.

Expand
Configuration propertyTypeDefault

lock quarkus.camel.cluster.file.enabled

Whether a File Lock Cluster Service should be automatically configured according to 'quarkus.camel.cluster.file.*' configurations.

boolean

false

lock quarkus.camel.cluster.file-id

The cluster service ID (defaults to null).

string

 

lock quarkus.camel.cluster.file-root

The root path (defaults to null).

string

 

lock quarkus.camel.cluster.file-order

The service lookup order/priority (defaults to 2147482647).

java.lang.Integer

 

lock quarkus.camel.cluster.file.acquire-lock-delay

The time to wait before starting to try to acquire lock (defaults to 1000ms).

string

 

lock quarkus.camel.cluster.file.acquire-lock-interval

The time to wait between attempts to try to acquire lock (defaults to 10000ms).

string

 

lock quarkus.camel.cluster.file.attributes

The custom attributes associated to the service (defaults to empty map).

Map<String,String>

 

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.26. FTP
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Upload and download files to/from SFTP, FTP or SFTP servers

2.26.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.26.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-ftp</artifactId>
</dependency>
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2.27. Gson
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Marshal POJOs to JSON and back using Gson

2.27.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.27.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-gson</artifactId>
</dependency>
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2.27.3. Additional Camel Quarkus configuration
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2.27.3.1. Marshaling/Unmarshaling objects in native mode
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When marshaling/unmarshaling objects in native mode, all the serialized classes need to be registered for reflection. As such, when using GsonDataFormat.setUnmarshalType(…​), GsonDataFormat.setUnmarshalTypeName(…​) and even GsonDataFormat.setUnmarshalGenericType(…​), the unmarshal type as well as sub field types should be registered for reflection. See a working example in this integration test.

2.28. Google BigQuery
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Access Google Cloud BigQuery service using SQL queries or Google Client Services API

2.28.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.28.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-google-bigquery</artifactId>
</dependency>
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2.28.3. Usage
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If you want to read SQL scripts from the classpath with google-bigquery-sql in native mode, then you will need to ensure that they are added to the native image via the quarkus.native.resources.includes configuration property. Please check Quarkus documentation for more details.

2.29. Google Pubsub
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Send and receive messages to/from Google Cloud Platform PubSub Service.

2.29.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.29.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-google-pubsub</artifactId>
</dependency>
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2.29.3. Camel Quarkus limitations
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By default, the Camel PubSub component uses JDK object serialization via ObjectOutputStream whenever the message body is anything other than String or byte[].

Since such serialization is not yet supported by GraalVM, this extension provides a custom Jackson based serializer to serialize complex message payloads as JSON.

If your payload contains binary data, then you will need to handle that by creating a custom Jackson Serializer / Deserializer. Refer to the Quarkus Jackson guide for information on how to do this.

2.30. HL7
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Marshal and unmarshal HL7 (Health Care) model objects using the HL7 MLLP codec.

2.30.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.30.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-hl7</artifactId>
</dependency>
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2.30.3. Camel Quarkus limitations
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For MLLP with TCP, Netty is the only supported means of running an Hl7 MLLP listener. Mina is not supported since it has no GraalVM native support at present.

Optional support for HL7MLLPNettyEncoderFactory & HL7MLLPNettyDecoderFactory codecs can be obtained by adding a dependency in your project pom.xml to camel-quarkus-netty.

2.31. HTTP
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Send requests to external HTTP servers using Apache HTTP Client 4.x.

2.31.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.31.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-http</artifactId>
</dependency>
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2.31.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.31.4. Additional Camel Quarkus configuration
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  • Check the Character encodings section of the Native mode guide if you expect your application to send or receive requests using non-default encodings.

2.32. Infinispan
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Read and write from/to Infinispan distributed key/value store and data grid.

2.32.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.32.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-infinispan</artifactId>
</dependency>
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2.32.3. Additional Camel Quarkus configuration
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2.32.3.1. Infinispan Client Configuration
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You can either configure the Infinispan client via the relevant Camel Infinispan component & endpoint options, or you may use the Quarkus Infinispan extension configuration properties.

If you chose to use the InfinispanRemoteAggregationRepository in native mode, then you must enable native serialization support.

2.33. Jackson
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Marshal POJOs to JSON and back using Jackson

2.33.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.33.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jackson</artifactId>
</dependency>
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2.33.3. Usage
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2.33.3.1. Configuring the Jackson ObjectMapper
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There are a few ways of configuring the ObjectMapper that the JacksonDataFormat uses. These are outlined below.

2.33.3.1.1. ObjectMapper created internally by JacksonDataFormat
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By default, JacksonDataFormat will create its own ObjectMapper and use the various configuration options on the DataFormat to configure additional Jackson modules, pretty printing and other features.

2.33.3.1.2. Custom ObjectMapper for JacksonDataFormat
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You can pass a custom ObjectMapper instance to JacksonDataFormat as follows. 

import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.jackson.JacksonDataFormat;

public class Routes extends RouteBuilder {
    public void configure() {
        ObjectMapper mapper = new ObjectMapper();
        JacksonDataFormat dataFormat = new JacksonDataFormat();
        dataFormat.setObjectMapper(mapper);
        // Use the dataFormat instance in a route definition
        from("direct:my-direct").marshal(dataFormat)
    }
}
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The Quarkus Jackson extension exposes an ObjectMapper CDI bean which can be discovered by the JacksonDataFormat. 

import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.jackson.JacksonDataFormat;

public class Routes extends RouteBuilder {
    public void configure() {
        JacksonDataFormat dataFormat = new JacksonDataFormat();
        // Make JacksonDataFormat discover the Quarkus Jackson `ObjectMapper` from the Camel registry
        dataFormat.setAutoDiscoverObjectMapper(true);
        // Use the dataFormat instance in a route definition
        from("direct:my-direct").marshal(dataFormat)
    }
}
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If you are using the JSON binding mode in the Camel REST DSL and want to use the Quarkus Jackson ObjectMapper, it can be achieved as follows. 

import org.apache.camel.builder.RouteBuilder;

@ApplicationScoped
public class Routes extends RouteBuilder {
    public void configure() {
        restConfiguration().dataFormatProperty("autoDiscoverObjectMapper", "true");
        // REST definition follows...
    }
}
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You can perform customizations on the Quarkus ObjectMapper with a ObjectMapperCustomizer. 

import com.fasterxml.jackson.databind.ObjectMapper;
import io.quarkus.jackson.ObjectMapperCustomizer;

@Singleton
public class RegisterCustomModuleCustomizer implements ObjectMapperCustomizer {
    public void customize(ObjectMapper mapper) {
        mapper.registerModule(new CustomModule());
    }
}
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It’s also possible to @Inject the Quarkus ObjectMapper and pass it to the JacksonDataFormat. 

import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.jackson.JacksonDataFormat;

@ApplicationScoped
public class Routes extends RouteBuilder {
    @Inject
    ObjectMapper mapper;

    public void configure() {
        JacksonDataFormat dataFormat = new JacksonDataFormat();
        dataFormat.setObjectMapper(mapper);
        // Use the dataFormat instance in a route definition
        from("direct:my-direct").marshal(dataFormat)
    }
}
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2.34. Avro Jackson
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Marshal POJOs to Avro and back using Jackson.

2.34.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.34.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jackson-avro</artifactId>
</dependency>
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2.35. Protobuf Jackson
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Marshal POJOs to Protobuf and back using Jackson.

2.35.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.35.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jackson-protobuf</artifactId>
</dependency>
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2.36. JacksonXML
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Unmarshal an XML payloads to POJOs and back using XMLMapper extension of Jackson.

2.36.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.36.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jacksonxml</artifactId>
</dependency>
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2.37. JAXB
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Unmarshal XML payloads to POJOs and back using JAXB2 XML marshalling standard.

2.37.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.37.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jaxb</artifactId>
</dependency>
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2.37.3. Usage
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When performing JAXB marshal operations with a custom ObjectFactory to instantiate POJO classes that do not have JAXB annotations, you must register those POJO classes for reflection in order for them to be instantiated in native mode. E.g via the @RegisterForReflection annotation or configuration property quarkus.camel.native.reflection.include-patterns.

Refer to the Native mode user guide for more information.

2.38. JDBC
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Access databases through SQL and JDBC.

2.38.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.38.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jdbc</artifactId>
</dependency>
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2.38.3. Additional Camel Quarkus configuration
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2.38.3.1. Configuring a DataSource
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This extension leverages Quarkus Agroal for DataSource support. Setting up a DataSource can be achieved via configuration properties. It is recommended that you explicitly name the datasource so that it can be referenced in the JDBC endpoint URI. E.g like to("jdbc:camel"). 

quarkus.datasource.camel.db-kind=postgresql
quarkus.datasource.camel.username=your-username
quarkus.datasource.camel.password=your-password
quarkus.datasource.camel.jdbc.url=jdbc:postgresql://localhost:5432/your-database
quarkus.datasource.camel.jdbc.max-size=16
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If you choose to not name the datasource, you can resolve the default DataSource by defining your endpoint like to("jdbc:default").

2.38.3.1.1. Zero configuration with Quarkus Dev Services
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In dev and test mode you can take advantage of Configuration Free Databases. All you need to do is reference the default database in your routes. E.g to("jdbc:default").

2.39. Jira
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Interact with JIRA issue tracker.

2.39.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.39.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jira</artifactId>
</dependency>
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2.39.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.40. JMS
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Sent and receive messages to/from a JMS Queue or Topic.

2.40.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.40.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jms</artifactId>
</dependency>
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2.40.3. Usage
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2.40.3.1. Message mapping with org.w3c.dom.Node
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The Camel JMS component supports message mapping between javax.jms.Message and org.apache.camel.Message. When wanting to convert a Camel message body type of org.w3c.dom.Node, you must ensure that the camel-quarkus-jaxp extension is present on the classpath.

2.40.3.2. Native mode support for javax.jms.ObjectMessage
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When sending JMS message payloads as javax.jms.ObjectMessage, you must annotate the relevant classes to be registered for serialization with @RegisterForReflection(serialization = true). Note that this extension automatically sets quarkus.camel.native.reflection.serialization-enabled = true for you. Refer to the native mode user guide for more information.

Note

Connection pooling is a Technical Preview feature in this release of Camel Extensions for Quarkus.

To use connection pooling in the camel-quarkus-jms components, you must add io.quarkiverse.artemis:quarkus-artemis and io.quarkiverse.messaginghub:quarkus-pooled-jms to your pom.xml and set the following configuration: 

quarkus.pooled-jms.max-connections = 8
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You can use the quarkus-pooled-jms extension to get pooling and XA support for JMS connections. Refer to the quarkus-pooled-jms extension documentation for more information. Currently, it only works with quarkus-artemis-jms extension. Just add these two dependencies to your pom.xml: 

<dependency>
    <groupId>io.quarkiverse.messaginghub</groupId>
    <artifactId>quarkus-pooled-jms</artifactId>
</dependency>
<dependency>
    <groupId>io.quarkiverse.artemis</groupId>
    <artifactId>quarkus-artemis-jms</artifactId>
</dependency>
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Note that pooling is enabled by default.

To enable XA, you need to add the following configuration to your application.properties: 

quarkus.pooled-jms.xa.enabled=true
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Note

clientID and durableSubscriptionName are not supported in pooling connections. If setClientID is called on a reused connection from the pool, an IllegalStateException will be thrown. You will get some error messages such like Cause: setClientID can only be called directly after the connection is created

2.40.4. transferException option in native mode
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To use the transferException option in native mode, you must enable support for object serialization. Refer to the native mode user guide for more information.

You will also need to enable serialization for the exception classes that you intend to serialize. For example. 

@RegisterForReflection(targets = { IllegalStateException.class, MyCustomException.class }, serialization = true)
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2.41. JPA
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Store and retrieve Java objects from databases using Java Persistence API (JPA).

2.41.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.41.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jpa</artifactId>
</dependency>
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2.41.3. Additional Camel Quarkus configuration
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The extension leverages Quarkus Hibernate ORM to provide the JPA implementation via Hibernate.

Refer to the Quarkus Hibernate ORM documentation to see how to configure Hibernate and your datasource,

When a single persistence unit is used, the Camel Quarkus JPA extension will automatically configure the JPA component with a EntityManagerFactory and TransactionManager.

2.42. JSON Path
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Evaluate a JSONPath expression against a JSON message body

2.42.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.42.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jsonpath</artifactId>
</dependency>
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2.43. JTA
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Enclose Camel routes in transactions using Java Transaction API (JTA) and Narayana transaction manager

2.43.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.43.2. Maven coordinates
Copiar enlace

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jta</artifactId>
</dependency>
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2.43.3. Usage
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This extension should be added when you need to use the transacted() EIP in the router. It leverages the transaction capabilities provided by the narayana-jta extension in Quarkus.

Refer to the Quarkus Transaction guide for the more details about transaction support. For a simple usage: 

from("direct:transaction")
    .transacted()
    .to("sql:INSERT INTO A TABLE ...?dataSource=ds1")
    .to("sql:INSERT INTO A TABLE ...?dataSource=ds2")
    .log("all data are in the ds1 and ds2")
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Support is provided for various transaction policies.

Expand
PolicyDescription

PROPAGATION_MANDATORY

Support a current transaction; throw an exception if no current transaction exists.

PROPAGATION_NEVER

Do not support a current transaction; throw an exception if a current transaction exists.

PROPAGATION_NOT_SUPPORTED

Do not support a current transaction; rather always execute non-transactionally.

PROPAGATION_REQUIRED

Support a current transaction; create a new one if none exists.

PROPAGATION_REQUIRES_NEW

Create a new transaction, suspending the current transaction if one exists.

PROPAGATION_SUPPORTS

Support a current transaction; execute non-transactionally if none exists.

2.44. JSLT
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Query or transform JSON payloads using an JSLT.

2.44.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.44.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-jslt</artifactId>
</dependency>
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2.44.3. allowContextMapAll option in native mode
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The allowContextMapAll option is not supported in native mode as it requires reflective access to security sensitive camel core classes such as CamelContext & Exchange. This is considered a security risk and thus access to the feature is not provided by default.

2.44.4. Additional Camel Quarkus configuration
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2.44.4.1. Loading JSLT templates from classpath in native mode
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This component typically loads the templates from classpath. To make it work also in native mode, you need to explicitly embed the templates files in the native executable by using the quarkus.native.resources.includes property.

For instance, the route below would load the JSLT schema from a classpath resource named transformation.json: 

from("direct:start").to("jslt:transformation.json");
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To include this (an possibly other templates stored in .json files) in the native image, you would have to add something like the following to your application.properties file: 

quarkus.native.resources.includes = *.json
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2.44.4.2. Using JSLT functions in native mode
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When using JSLT functions from camel-quarkus in native mode, the classes hosting the functions would need to be registered for reflection. When registering the target function is not possible, one may end up writing a stub as below. 

@RegisterForReflection
public class MathFunctionStub {
    public static double pow(double a, double b) {
        return java.lang.Math.pow(a, b);
    }
}
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The target function Math.pow(…​) is now accessible through the MathFunctionStub class that could be registered in the component as below: 

@Named
JsltComponent jsltWithFunction() throws ClassNotFoundException {
    JsltComponent component = new JsltComponent();
    component.setFunctions(singleton(wrapStaticMethod("power", "org.apache.cq.example.MathFunctionStub", "pow")));
    return component;
}
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2.45. Kafka
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Sent and receive messages to/from an Apache Kafka broker.

2.45.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.45.2. Maven coordinates
Copiar enlace

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-kafka</artifactId>
</dependency>
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2.45.3. Usage
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2.45.3.1. Quarkus Kafka Dev Services
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Camel Quarkus Kafka can take advantage of Quarkus Kafka Dev services to simplify development and testing with a local containerized Kafka broker.

Kafka Dev Services is enabled by default in dev & test mode. The Camel Kafka component is automatically configured so that the brokers component option is set to point at the local containerized Kafka broker. Meaning that there’s no need to configure this option yourself.

This functionality can be disabled with the configuration property quarkus.kafka.devservices.enabled=false.

2.45.4. Additional Camel Quarkus configuration
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Expand
Configuration propertyTypeDefault

quarkus.camel.kafka.kubernetes-service-binding.merge-configuration

If true then any Kafka configuration properties discovered by the Quarkus Kubernetes Service Binding extension (if configured) will be merged with those set via Camel Kafka component or endpoint options. If false then any Kafka configuration properties discovered by the Quarkus Kubernetes Service Binding extension are ignored, and all of the Kafka component configuration is driven by Camel.

boolean

true

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.46. Kamelet
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Materialize route templates

2.46.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.46.2. Maven coordinates
Copiar enlace

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-kamelet</artifactId>
</dependency>
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2.46.3. Usage
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2.46.3.1. Pre-load Kamelets at build-time
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This extension allows to pre-load a set of Kamelets at build time using the quarkus.camel.kamelet.identifiers property.

2.46.3.2. Using the Kamelet Catalog
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A set of pre-made Kamelets can be found on the /camel-kamelets/latest[Kamelet Catalog]. To use the Kamelet from the catalog you need to copy their yaml definition (that you can find in the camel-kamelet repo) on your project in the classpath. Alternatively you can add the camel-kamelets-catalog artifact to your pom.xml: 

<dependency>
    <groupId>org.apache.camel.kamelets</groupId>
    <artifactId>camel-kamelets-catalog</artifactId>
</dependency>
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This artifact add all the kamelets available in the catalog to your Camel Quarkus application for build time processing. If you include it with the scope provided the artifact should not be part of the runtime classpath, but at build time, all the kamelets listed via quarkus.camel.kamelet.identifiers property should be preloaded.

2.46.4. Additional Camel Quarkus configuration
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Expand
Configuration propertyTypeDefault

lock quarkus.camel.kamelet.identifiers

List of kamelets identifiers to pre-load at build time. Each individual identifier is used to set the related org.apache.camel.model.RouteTemplateDefinition id.

string

 

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.47. Kubernetes
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Perform operations against Kubernetes API

2.47.1. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-kubernetes</artifactId>
</dependency>
Copy to Clipboard Toggle word wrap

2.47.2. Additional Camel Quarkus configuration
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Important

In this release of Camel Extensions for Quarkus, the camel-quarkus-kubernetes extension is only supported when used with the camel-quarkus-master extension as a cluster service. Additionally, in order for the camel-quarkus-kubernetes extension to be supported, you must explicitly add a dependency on the quarkus-openshift-client extension in your application.

2.47.2.1. Automatic registration of a Kubernetes Client instance
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The extension automatically registers a Kubernetes Client bean named kubernetesClient. You can reference the bean in your routes like this: 

from("direct:pods")
    .to("kubernetes-pods:///?kubernetesClient=#kubernetesClient&operation=listPods")
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By default the client is configured from the local kubeconfig file. You can customize the client configuration via properties within application.properties: 

quarkus.kubernetes-client.master-url=https://my.k8s.host
quarkus.kubernetes-client.namespace=my-namespace
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The full set of configuration options are documented in the Quarkus Kubernetes Client guide.

When the same route is deployed on multiple pods, it could be interesting to use this extension in conjunction with the Master one. In such a setup, a single consumer will be active at a time across the whole camel master namespace.

For instance, having the route below deployed on multiple pods: 

from("master:ns:timer:test?period=100").log("Timer invoked on a single pod at a time");
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It’s possible to enable the kubernetes cluster service with a property like below: 

quarkus.camel.cluster.kubernetes.enabled = true
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As a result, a single consumer will be active across the ns camel master namespace. It means that, at a given time, only a single timer will generate exchanges across the whole cluster. In other words, messages will be logged every 100ms on a single pod at a time.

The kubernetes cluster service could further be tuned by tweaking quarkus.camel.cluster.kubernetes.* properties.

Expand
Configuration propertyTypeDefault

lock quarkus.camel.cluster.kubernetes.enabled

Whether a Kubernetes Cluster Service should be automatically configured according to 'quarkus.camel.cluster.kubernetes.*' configurations.

boolean

false

lock quarkus.camel.cluster.kubernetes-id

The cluster service ID (defaults to null).

string

 

lock quarkus.camel.cluster.kubernetes.master-url

The URL of the Kubernetes master (read from Kubernetes client properties by default).

string

 

lock quarkus.camel.cluster.kubernetes.connection-timeout-millis

The connection timeout in milliseconds to use when making requests to the Kubernetes API server.

java.lang.Integer

 

lock quarkus.camel.cluster.kubernetes.namespace

The name of the Kubernetes namespace containing the pods and the configmap (autodetected by default).

string

 

lock quarkus.camel.cluster.kubernetes.pod-name

The name of the current pod (autodetected from container host name by default).

string

 

lock quarkus.camel.cluster.kubernetes.jitter-factor

The jitter factor to apply in order to prevent all pods to call Kubernetes APIs in the same instant (defaults to 1.2).

java.lang.Double

 

lock quarkus.camel.cluster.kubernetes.lease-duration-millis

The default duration of the lease for the current leader (defaults to 15000).

java.lang.Long

 

lock quarkus.camel.cluster.kubernetes.renew-deadline-millis

The deadline after which the leader must stop its services because it may have lost the leadership (defaults to 10000).

java.lang.Long

 

lock quarkus.camel.cluster.kubernetes.retry-period-millis

The time between two subsequent attempts to check and acquire the leadership. It is randomized using the jitter factor (defaults to 2000).

java.lang.Long

 

lock quarkus.camel.cluster.kubernetes-order

Service lookup order/priority (defaults to 2147482647).

java.lang.Integer

 

lock quarkus.camel.cluster.kubernetes.resource-name

The name of the lease resource used to do optimistic locking (defaults to 'leaders'). The resource name is used as prefix when the underlying Kubernetes resource can manage a single lock.

string

 

lock quarkus.camel.cluster.kubernetes.lease-resource-type

The lease resource type used in Kubernetes, either 'config-map' or 'lease' (defaults to 'lease').

org.apache.camel.component.kubernetes.cluster.LeaseResourceType

 

lock quarkus.camel.cluster.kubernetes.rebalancing

Whether the camel master namespace leaders should be distributed evenly across all the camel contexts in the cluster.

boolean

true

lock quarkus.camel.cluster.kubernetes-labels

The labels key/value used to identify the pods composing the cluster, defaults to empty map.

Map<String,String>

 

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.48. Log
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Log messages to the underlying logging mechanism.

2.48.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.48.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-log</artifactId>
</dependency>
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2.49. Mail
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Send and receive emails using imap, pop3 and smtp protocols. Marshal Camel messages with attachments into MIME-Multipart messages and back.

2.49.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.49.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-mail</artifactId>
</dependency>
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2.50. Master
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Have only a single consumer in a cluster consuming from a given endpoint; with automatic failover if the JVM dies.

2.50.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.50.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-master</artifactId>
</dependency>
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2.50.3. Additional Camel Quarkus configuration
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This extension can be used in conjunction with extensions below:

2.51. Microprofile Fault Tolerance
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Circuit Breaker EIP using Microprofile Fault Tolerance

2.51.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.51.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-microprofile-fault-tolerance</artifactId>
</dependency>
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2.52. MicroProfile Health
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Expose Camel health checks via MicroProfile Health

2.52.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.52.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-microprofile-health</artifactId>
</dependency>
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2.52.3. Usage
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By default, classes extending AbstractHealthCheck are registered as both liveness and readiness checks. You can override the isReadiness method to control this behaviour.

Any checks provided by your application are automatically discovered and bound to the Camel registry. They will be available via the Quarkus health endpoints /q/health/live and /q/health/ready.

You can also provide custom HealthCheckRepository implementations and these are also automatically discovered and bound to the Camel registry for you.

Refer to the Quarkus health guide for further information.

2.52.3.1. Provided health checks
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Some checks are automatically registered for your application.

2.52.3.1.1. Camel Context Health
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Inspects the Camel Context status and causes the health check status to be DOWN if the status is anything other than 'Started'.

2.52.3.1.2. Camel Route Health
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Inspects the status of each route and causes the health check status to be DOWN if any route status is not 'Started'.

2.52.4. Additional Camel Quarkus configuration
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Expand
Configuration propertyTypeDefault

lock quarkus.camel.health.enabled

Set whether to enable Camel health checks

boolean

true

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.53. MicroProfile Metrics
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Expose metrics from Camel routes.

2.53.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.53.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-microprofile-metrics</artifactId>
</dependency>
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2.53.3. Usage
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The microprofile-metrics component automatically exposes a set of Camel application metrics. Some of these include:

2.53.3.1. Camel Context metrics
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Expand
Metric NameType

camel.context.status

The status of the Camel Context represented by the ServiceStatus enum ordinal

Gauge

camel.context.uptime

The Camel Context uptime in milliseconds

Gauge

camel.context.exchanges.completed.total

The total number of completed exchanges

Counter

camel.context.exchanges.failed.total

The total number of failed exchanges

Counter

camel.context.exchanges.inflight.total

The total number of inflight exchanges

Gauge

camel.context.exchanges.total

The total number of all exchanges

Counter

camel.context.externalRedeliveries.total

The total number of all external redeliveries

Counter

camel.context.failuresHandled.total

The total number of all failures handled

Counter

2.53.3.2. Camel Route metrics
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Expand
Metric NameType

camel.route.count

The number of routes

Gauge

camel.route.running.count

The number of running routes

Gauge

camel.route.exchanges.completed.total

The total number of completed exchanges for the route

Counter

camel.route.exchanges.failed.total

The total number of failed exchanges for the route

Counter

camel.route.exchanges.inflight.total

The total number of inflight exchanges for the route

Gauge

camel.route.exchanges.total

The total number of all exchanges for the route

Counter

camel.route.externalRedeliveries.total

The total number of all external redeliveries for the route

Counter

camel.route.failuresHandled.total

The total number of all failures handled for the route

Counter

All metrics are tagged with the name of the Camel Context and the id of the route where applicable.

You can also produce your own customized metrics in your Camel routes. For more information, refer to the microprofile-metrics component documentation.

Metrics are exposed to Quarkus as application metrics and they can be browsed at http://localhost:8080/q/metrics/application.

2.53.4. Additional Camel Quarkus configuration
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Expand
Configuration propertyTypeDefault

lock quarkus.camel.metrics.enable-route-policy

Set whether to enable the MicroProfileMetricsRoutePolicyFactory for capturing metrics on route processing times.

boolean

true

lock quarkus.camel.metrics.enable-message-history

Set whether to enable the MicroProfileMetricsMessageHistoryFactory for capturing metrics on individual route node processing times. Depending on the number of configured route nodes, there is the potential to create a large volume of metrics. Therefore, this option is disabled by default.

boolean

false

lock quarkus.camel.metrics.enable-exchange-event-notifier

Set whether to enable the MicroProfileMetricsExchangeEventNotifier for capturing metrics on exchange processing times.

boolean

true

lock quarkus.camel.metrics.enable-route-event-notifier

Set whether to enable the MicroProfileMetricsRouteEventNotifier for capturing metrics on the total number of routes and total number of routes running.

boolean

true

lock quarkus.camel.metrics.enable-camel-context-event-notifier

Set whether to enable the MicroProfileMetricsCamelContextEventNotifier for capturing metrics about the CamelContext, such as status and uptime.

boolean

true

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.54. MLLP
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Communicate with external systems using the MLLP protocol.

2.54.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.54.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-mllp</artifactId>
</dependency>
Copy to Clipboard Toggle word wrap

2.54.3. Additional Camel Quarkus configuration
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2.55. Mock
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Test routes and mediation rules using mocks.

2.55.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.55.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-mock</artifactId>
</dependency>
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2.55.3. Usage
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To use camel-mock capabilities in tests it is required to get access to MockEndpoint instances.

CDI injection could be used for accessing instances (see Quarkus documentation). You can inject camelContext into test using @Inject annotation. Camel context can be then used for obtaining mock endpoints. See the following example: 

import javax.inject.Inject;

import org.apache.camel.CamelContext;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.component.mock.MockEndpoint;
import org.junit.jupiter.api.Test;

import io.quarkus.test.junit.QuarkusTest;

@QuarkusTest
public class MockJvmTest {

    @Inject
    CamelContext camelContext;

    @Inject
    ProducerTemplate producerTemplate;

    @Test
    public void test() throws InterruptedException {

        producerTemplate.sendBody("direct:start", "Hello World");

        MockEndpoint mockEndpoint = camelContext.getEndpoint("mock:result", MockEndpoint.class);
        mockEndpoint.expectedBodiesReceived("Hello World");

        mockEndpoint.assertIsSatisfied();
    }
}
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Route used for the example test: 

import javax.enterprise.context.ApplicationScoped;

import org.apache.camel.builder.RouteBuilder;

@ApplicationScoped
public class MockRoute extends RouteBuilder {

    @Override
    public void configure() throws Exception {
        from("direct:start").to("mock:result");
    }
}
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2.55.4. Camel Quarkus limitations
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Injection of CDI beans (described in Usage) does not work in native mode.

In the native mode the test and the application under test are running in two different processes and it is not possible to share a mock bean between them (see Quarkus documentation).

2.56. MongoDB
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Perform operations on MongoDB documents and collections.

2.56.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.56.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-mongodb</artifactId>
</dependency>
Copy to Clipboard Toggle word wrap

2.56.3. Additional Camel Quarkus configuration
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The extension leverages the Quarkus MongoDB Client extension. The Mongo client can be configured via the Quarkus MongoDB Client configuration options.

The Camel Quarkus MongoDB extension automatically registers a MongoDB client bean named camelMongoClient. This can be referenced in the mongodb endpoint URI connectionBean path parameter. For example: 

from("direct:start")
.to("mongodb:camelMongoClient?database=myDb&collection=myCollection&operation=findAll")
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If your application needs to work with multiple MongoDB servers, you can create a "named" client and reference in your route by injecting a client and the related configuration as explained in the Quarkus MongoDB extension client injection. For example: 

//application.properties
quarkus.mongodb.mongoClient1.connection-string = mongodb://root:example@localhost:27017/
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//Routes.java

    @ApplicationScoped
    public class Routes extends RouteBuilder {
        @Inject
        @MongoClientName("mongoClient1")
        MongoClient mongoClient1;

        @Override
        public void configure() throws Exception {
            from("direct:defaultServer")
                .to("mongodb:camelMongoClient?database=myDb&collection=myCollection&operation=findAll")

            from("direct:otherServer")
                .to("mongodb:mongoClient1?database=myOtherDb&collection=myOtherCollection&operation=findAll");
        }
    }
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Note that when using named clients, the "default" camelMongoClient bean will still be produced. Refer to the Quarkus documentation on Multiple MongoDB Clients for more information.

2.57. Netty
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Socket level networking using TCP or UDP with Netty 4.x.

2.57.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.57.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-netty</artifactId>
</dependency>
Copy to Clipboard Toggle word wrap

2.58. OpenAPI Java
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Expose OpenAPI resources defined in Camel REST DSL

2.58.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.58.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-openapi-java</artifactId>
</dependency>
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2.58.3. Usage
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You can use this extension to expose REST DSL services to Quarkus OpenAPI. With quarkus-smallrye-openapi, you can access them by /q/openapi?format=json.

Refer to the Quarkus OpenAPI guide for further information.

This is an experimental feature. You can enable it by 

quarkus.camel.openapi.expose.enabled=true
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Warning

It’s the user’s responsibility to use @RegisterForReflection to register all model classes for reflection.

It doesn’t support the rest services used in org.apache.camel.builder.LambdaRouteBuilder right now. Also, it can not use CDI injection in the RouteBuilder configure() since we get the rest definitions at build time while CDI is unavailable.

2.58.4. Camel Quarkus limitations
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The apiContextIdListing configuration option is not supported. Since multiple CamelContext`s are not supported and Quarkus applications run standalone, there is no scenario where attempting to resolve OpenApi specifications for a specific `CamelContext would be useful. It also introduces some additional overhead of requiring JMX (which is not supported in native mode) & additional Camel Quarkus extensions for processing XML.

2.59. OpenTelemetry
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Distributed tracing using OpenTelemetry

2.59.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.59.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-opentelemetry</artifactId>
</dependency>
Copy to Clipboard Toggle word wrap

2.59.3. Usage
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The extension automatically creates a Camel OpenTelemetryTracer and binds it to the Camel registry.

In order to send the captured traces to a tracing system, you need to configure some properties within application.properties like those below. 

# Identifier for the origin of spans created by the application
quarkus.application.name=my-camel-application

# For OTLP
quarkus.opentelemetry.tracer.exporter.otlp.endpoint=http://localhost:4317

# For Jaeger
quarkus.opentelemetry.tracer.exporter.jaeger.endpoint=http://localhost:14250
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Note that you must add a dependency to the OpenTelemetry exporter that you want to work with.

At present, Quarkus has support for Jaeger and the OpenTelemetry Protocol Specification (OTLP).

For Jaeger: 

<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-opentelemetry-exporter-jaeger</artifactId>
</dependency>
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For OTLP: 

<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-opentelemetry-exporter-otlp</artifactId>
</dependency>
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Refer to the Quarkus OpenTelemetry guide for a full list of configuration options.

Route endpoints can be excluded from tracing by configuring a property named quarkus.camel.opentelemetry.exclude-patterns in application.properties. For example: 

# Exclude all direct & netty-http endpoints from tracing
quarkus.camel.opentelemetry.exclude-patterns=direct:*,netty-http:*
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2.59.3.1. Tracing CDI bean method execution
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When instrumenting the execution of CDI bean methods from Camel routes, you should annotate such methods with io.opentelemetry.extension.annotations.WithSpan. Methods annotated with @WithSpan will create a new Span and establish any required relationships with the current Trace context.

For example, to instrument a CDI bean from a Camel route, first ensure the appropriate methods are annotated with @WithTrace. 

@ApplicationScoped
@Named("myBean")
public class MyBean {
    @WithSpan
    public String greet() {
        return "Hello World!";
    }
}
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Next, use the bean in your Camel route.

Important

To ensure that the sequence of recorded spans is correct, you must use the full to("bean:") endpoint URI and not the shortened .bean() EIP DSL method. 

public class MyRoutes extends RouteBuilder {
    @Override
    public void configure() throws Exception {
        from("direct:executeBean")
                .to("bean:myBean?method=greet");
    }
}
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There is more information about CDI instrumentation in the Quarkus OpenTelemetry guide.

2.59.4. Additional Camel Quarkus configuration
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Expand
Configuration propertyTypeDefault

lock quarkus.camel.opentelemetry.encoding

Sets whether header names need to be encoded. Can be useful in situations where OpenTelemetry propagators potentially set header name values in formats that are not compatible with the target system. E.g for JMS where the specification mandates header names are valid Java identifiers.

boolean

false

lock quarkus.camel.opentelemetry.exclude-patterns

Sets whether to disable tracing for endpoint URIs that match the given patterns. The pattern can take the following forms:

1. An exact match on the endpoint URI. E.g platform-http:/some/path

2. A wildcard match. E.g platform-http:*

3. A regular expression matching the endpoint URI. E.g platform-http:/prefix/.*

string

 

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.60. Paho
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Communicate with MQTT message brokers using Eclipse Paho MQTT Client.

2.60.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.60.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-paho</artifactId>
</dependency>
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2.61. Paho MQTT5
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Communicate with MQTT message brokers using Eclipse Paho MQTT v5 Client.

2.61.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.61.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-paho-mqtt5</artifactId>
</dependency>
Copy to Clipboard Toggle word wrap

2.62. Platform HTTP
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This extension allows for creating HTTP endpoints for consuming HTTP requests.

It is built on top of the Eclipse Vert.x HTTP server provided by the quarkus-vertx-http extension.

2.62.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.62.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-platform-http</artifactId>
</dependency>
Copy to Clipboard Toggle word wrap

2.62.3. Usage
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2.62.3.1. Basic Usage
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Serve all HTTP methods on the /hello endpoint: 

from("platform-http:/hello").setBody(simple("Hello ${header.name}"));
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Serve only GET requests on the /hello endpoint: 

from("platform-http:/hello?httpMethodRestrict=GET").setBody(simple("Hello ${header.name}"));
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2.62.3.2. Using platform-http via Camel REST DSL
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To be able to use Camel REST DSL with the platform-http component, add camel-quarkus-rest to your pom.xml: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-rest</artifactId>
</dependency>
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Then you can use the Camel REST DSL: 

rest()
    .get("/my-get-endpoint")
        .to("direct:handleGetRequest");

    .post("/my-post-endpoint")
        .to("direct:handlePostRequest");
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2.62.3.3. Handling multipart/form-data file uploads
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You can restrict the uploads to certain file extensions by white listing them: 

from("platform-http:/upload/multipart?fileNameExtWhitelist=html,txt&httpMethodRestrict=POST")
    .to("log:multipart")
    .process(e -> {
        final AttachmentMessage am = e.getMessage(AttachmentMessage.class);
        if (am.hasAttachments()) {
            am.getAttachments().forEach((fileName, dataHandler) -> {
                try (InputStream in = dataHandler.getInputStream()) {
                    // do something with the input stream
                } catch (IOException ioe) {
                    throw new RuntimeException(ioe);
                }
            });
        }
    });
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2.62.3.4. Securing platform-http endpoints
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Quarkus provides a variety of security and authentication mechanisms which can be used to secure platform-http endpoints. Refer to the Quarkus Security documentation for further details.

Within a route, it is possible to obtain the authenticated user and its associated SecurityIdentity and Principal: 

from("platform-http:/secure")
    .process(e -> {
        Message message = e.getMessage();
        QuarkusHttpUser user = message.getHeader(VertxPlatformHttpConstants.AUTHENTICATED_USER, QuarkusHttpUser.class);
        SecurityIdentity securityIdentity = user.getSecurityIdentity();
        Principal principal = securityIdentity.getPrincipal();
        // Do something useful with SecurityIdentity / Principal. E.g check user roles etc.
    });
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Also check the quarkus.http.body.* configuration options in Quarkus documentation, esp. quarkus.http.body.handle-file-uploads, quarkus.http.body.uploads-directory and quarkus.http.body.delete-uploaded-files-on-end.

2.62.3.5. Implementing a reverse proxy
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Platform HTTP component can act as a reverse proxy, in that case Exchange.HTTP_URI, Exchange.HTTP_HOST headers are populated from the absolute URL received on the request line of the HTTP request.

Here’s an example of a HTTP proxy that simply redirects the Exchange to the origin server. 

from("platform-http:proxy")
    .toD("http://"
        + "${headers." + Exchange.HTTP_HOST + "}");
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2.62.4. Additional Camel Quarkus configuration
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2.62.4.1. Platform HTTP server configuration
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Configuration of the platform HTTP server is managed by Quarkus. Refer to the Quarkus HTTP configuration guide for the full list of configuration options.

To configure SSL for the Platform HTTP server, follow the secure connections with SSL guide. Note that configuring the server for SSL with SSLContextParameters is not currently supported.

2.62.4.2. Character encodings
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Check the Character encodings section of the Native mode guide if you expect your application to send or receive requests using non-default encodings.

2.63. Quartz
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Schedule sending of messages using the Quartz 2.x scheduler.

2.63.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.63.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-quartz</artifactId>
</dependency>
Copy to Clipboard Toggle word wrap

2.63.3. Usage
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2.63.3.1. Clustering
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Support for Quartz clustering is provided by the Quarkus Quartz extension. The following steps outline how to configure Quarkus Quartz for use with Camel.

  1. Enable Quartz clustered mode and configure a DataSource as a persistence Quartz job store. An example configuration is as follows. 

    # Quartz configuration
quarkus.quartz.clustered=true
quarkus.quartz.store-type=jdbc-cmt
quarkus.quartz.start-mode=forced

# Datasource configuration
quarkus.datasource.db-kind=postgresql
quarkus.datasource.username=quarkus_test
quarkus.datasource.password=quarkus_test
quarkus.datasource.jdbc.url=jdbc:postgresql://localhost/quarkus_test

# Optional automatic creation of Quartz tables
quarkus.flyway.connect-retries=10
quarkus.flyway.table=flyway_quarkus_history
quarkus.flyway.migrate-at-start=true
quarkus.flyway.baseline-on-migrate=true
quarkus.flyway.baseline-version=1.0
quarkus.flyway.baseline-description=Quartz
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  2. Add the correct JDBC driver extension to your application that corresponds to the value of quarkus.datasource.db-kind. In the above example postgresql is used, therefore the following JDBC dependency would be required. Adjust as necessary for your needs. Agroal is also required for DataSource support. 

    <dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-jdbc-postgresql</artifactId>
</dependency>
<dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-agroal</artifactId>
</dependency>
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  3. Quarkus Flyway can automatically create the necessary Quartz database tables for you. Add quarkus-flyway to your application (optional). 

    <dependency>
    <groupId>io.quarkus</groupId>
    <artifactId>quarkus-flyway</artifactId>
</dependency>
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    Also add a Quartz database creation script for your chosen database kind. The Quartz project provides ready made scripts that can be copied from here. Add the SQL script to src/main/resources/db/migration/V1.0.0__QuarkusQuartz.sql. Quarkus Flyway will detect it on startup and will proceed to create the Quartz database tables.

  4. Configure the Camel Quartz component to use the Quarkus Quartz scheduler. 

    @Produces
@Singleton
@Named("quartz")
public QuartzComponent quartzComponent(Scheduler scheduler) {
    QuartzComponent component = new QuartzComponent();
    component.setScheduler(scheduler);
    return component;
}
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Further customization of the Quartz scheduler can be done via various configuration properties. Refer to to the Quarkus Quartz Configuration guide for more information.

2.64. Ref
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Route messages to an endpoint looked up dynamically by name in the Camel Registry.

2.64.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.64.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-ref</artifactId>
</dependency>
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2.64.3. Usage
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CDI producer methods can be harnessed to bind endpoints to the Camel registry, so that they can be resolved using the ref URI scheme in Camel routes.

For example, to produce endpoint beans: 

@ApplicationScoped
public class MyEndpointProducers {
    @Inject
    CamelContext context;

    @Singleton
    @Produces
    @Named("endpoint1")
    public Endpoint directStart() {
        return context.getEndpoint("direct:start");
    }

    @Singleton
    @Produces
    @Named("endpoint2")
    public Endpoint logEnd() {
        return context.getEndpoint("log:end");
    }
}
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Use ref: to refer to the names of the CDI beans that were bound to the Camel registry: 

public class MyRefRoutes extends RouteBuilder {
    @Override
    public void configure() {
        // direct:start -> log:end
        from("ref:endpoint1")
            .to("ref:endpoint2");
    }
}
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2.65. Rest
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Expose REST services and their OpenAPI Specification or call external REST services.

2.65.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.65.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-rest</artifactId>
</dependency>
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2.65.3. Additional Camel Quarkus configuration
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This extension depends on the Platform HTTP extension and configures it as the component that provides the REST transport.

When using the platform-http REST transport, some characters are not allowed within path parameter names. This includes the '-' and '$' characters.

In order to make the below example REST /dashed/param route work correctly, a system property is required io.vertx.web.route.param.extended-pattern=true. 

import org.apache.camel.builder.RouteBuilder;

public class CamelRoute extends RouteBuilder {

    @Override
    public void configure() {
        rest("/api")
            // Dash '-' is not allowed by default
            .get("/dashed/param/{my-param}")
            .to("direct:greet")

            // The non-dashed path parameter works by default
            .get("/undashed/param/{myParam}")
            .to("direct:greet");

            from("direct:greet")
                .setBody(constant("Hello World"));
    }
}
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There is some more background to this in the Vert.x Web documentation.

2.65.3.2. Configuring alternate REST transport providers
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To use another REST transport provider, such as netty-http or servlet, you need to add the respective extension as a dependency to your project and set the provider in your RouteBuilder. E.g. for servlet, you’d have to add the org.apache.camel.quarkus:camel-quarkus-servlet dependency and the set the provider as follows: 

import org.apache.camel.builder.RouteBuilder;

public class CamelRoute extends RouteBuilder {

    @Override
    public void configure() {
        restConfiguration()
                .component("servlet");
        ...
    }
}
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2.66. REST OpenApi
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Configure REST producers based on an OpenAPI specification document delegating to a component implementing the RestProducerFactory interface.

2.66.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.66.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-rest-openapi</artifactId>
</dependency>
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2.66.3. Usage
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2.66.3.1. Required Dependencies
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A RestProducerFactory implementation must be available when using the rest-openapi extension. The currently known extensions are:

  • camel-quarkus-http
  • camel-quarkus-netty-http

Maven users will need to add one of these dependencies to their pom.xml, for example: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-http</artifactId>
</dependency>
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Depending on which mechanism is used to load the OpenApi specification, additional dependencies may be required. When using the file resource locator, the org.apache.camel.quarkus:camel-quarkus-file extension must be added as a project dependency. When using ref or bean to load the specification, not only must the org.apache.camel.quarkus:camel-quarkus-bean dependency be added, but the bean itself must be annotated with @RegisterForReflection.

When using the classpath resource locator with native code, the path to the OpenAPI specification must be specified in the quarkus.native.resources.includes property of the application.properties file. For example: 

quarkus.native.resources.includes=openapi.json
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2.67. Salesforce
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Communicate with Salesforce using Java DTOs.

2.67.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.67.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-salesforce</artifactId>
</dependency>
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2.67.3. Usage
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2.67.3.1. Generating Salesforce DTOs with the salesforce-maven-plugin
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Test content.

To generate Salesforce DTOs for your project, use the salesforce-maven-plugin. The example code snippet below creates a single DTO for the Account object. 

<plugin>
    <groupId>org.apache.camel.maven</groupId>
    <artifactId>camel-salesforce-maven-plugin</artifactId>
    <version>3.18.6</version>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <clientId>${env.SALESFORCE_CLIENTID}</clientId>
                <clientSecret>${env.SALESFORCE_CLIENTSECRET}</clientSecret>
                <userName>${env.SALESFORCE_USERNAME}</userName>
                <password>${env.SALESFORCE_PASSWORD}</password>
                <loginUrl>https://login.salesforce.com</loginUrl>
                <packageName>org.apache.camel.quarkus.component.salesforce.generated</packageName>
                <outputDirectory>src/main/java</outputDirectory>
                <includes>
                    <include>Account</include>
                </includes>
            </configuration>
        </execution>
    </executions>
</plugin>
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2.67.4. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.68. XQuery
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Query and/or transform XML payloads using XQuery and Saxon.

2.68.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.68.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-saxon</artifactId>
</dependency>
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2.68.3. Additional Camel Quarkus configuration
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This component is able to load XQuery definitions from classpath. To make it work also in native mode, you need to explicitly embed the queries in the native executable by using the quarkus.native.resources.includes property.

For instance, the two routes below load an XQuery script from two classpath resources named myxquery.txt and another-xquery.txt respectively: 

from("direct:start").transform().xquery("resource:classpath:myxquery.txt", String.class);
from("direct:start").to("xquery:another-xquery.txt");
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To include these (an possibly other queries stored in .txt files) in the native image, you would have to add something like the following to your application.properties file: 

quarkus.native.resources.includes = *.txt
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2.69. Scheduler
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Generate messages in specified intervals using java.util.concurrent.ScheduledExecutorService.

2.69.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.69.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-scheduler</artifactId>
</dependency>
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2.70. SEDA
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Asynchronously call another endpoint from any Camel Context in the same JVM.

2.70.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.70.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-seda</artifactId>
</dependency>
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2.71. Slack
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Send and receive messages to/from Slack.

2.71.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.71.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-slack</artifactId>
</dependency>
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2.71.3. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.72. SOAP dataformat
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Marshal Java objects to SOAP messages and back.

2.72.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.72.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-soap</artifactId>
</dependency>
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2.73. SNMP
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Receive traps and poll SNMP (Simple Network Management Protocol) capable devices.

2.73.1. What’s inside
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URI syntax: snmp:host:port

Refer to the SNMP component for usage and configuration details.

2.73.2. Maven coordinates
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<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-snmp</artifactId>
</dependency>
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2.73.3. Camel Quarkus limitations
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This extension uses org.snmp4j:snmp4j as an SNMP protocol implementation. This is different from Camel 3.18.x using org.apache.servicemix.bundles.snmp4j:org.apache.servicemix.bundles.

The motivation for this change is twofold:

  1. org.snmp4j:snmp4j brings more stability and fixes many vulnerabilities.
  2. Camel switches to org.snmp4j.snmp4j in version 4 anyway, so Camel Quarkus users can enjoy the same benefits a bit earlier.

This change has no impact on configuration of the SNMP component.

2.73.3.1. SNMP v3 Limitation
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SNMP version 3 is supported only for the operation poll. (This limitation is caused by an issue in Camel 3.18.6. For more information, see CAMEL-19298).

2.74. SQL
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Perform SQL queries.

2.74.1. What’s inside
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Please refer to the above links for usage and configuration details.

2.74.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-sql</artifactId>
</dependency>
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2.74.3. Additional Camel Quarkus configuration
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2.74.3.1. Configuring a DataSource
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This extension leverages Quarkus Agroal for DataSource support. Setting up a DataSource can be achieved via configuration properties. 

quarkus.datasource.db-kind=postgresql
quarkus.datasource.username=your-username
quarkus.datasource.password=your-password
quarkus.datasource.jdbc.url=jdbc:postgresql://localhost:5432/your-database
quarkus.datasource.jdbc.max-size=16
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The Camel SQL component will automatically resolve the DataSource bean from the registry. When configuring multiple datasources, you can specify which one is to be used on an SQL endpoint via the URI options datasource or dataSourceRef. Refer to the SQL component documentation for more details.

2.74.3.1.1. Zero configuration with Quarkus Dev Services
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In dev and test mode you can take advantage of Configuration Free Databases. The Camel SQL component will be automatically configured to use a DataSource that points to a local containerized instance of the database matching the JDBC driver type that you have selected.

2.74.3.2. SQL scripts
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When configuring sql or sql-stored endpoints to reference script files from the classpath, set the following configuration property to ensure that they are available in native mode. 

quarkus.native.resources.includes = queries.sql, sql/*.sql
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2.74.3.3. SQL aggregation repository in native mode
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In order to use SQL aggregation repositories like JdbcAggregationRepository in native mode, you must enable native serialization support.

In addition, if your exchange bodies are custom types, they must be registered for serialization by annotating their class declaration with @RegisterForReflection(serialization = true).

2.75. Telegram
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Send and receive messages acting as a Telegram Bot Telegram Bot API.

2.75.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.75.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-telegram</artifactId>
</dependency>
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2.75.3. Usage
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2.75.4. Webhook Mode
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The Telegram extension supports usage in the webhook mode.

In order to enable webhook mode, users need first to add a REST implementation to their application. Maven users, for example, can add camel-quarkus-rest extension to their pom.xml file: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-rest</artifactId>
</dependency>
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2.75.5. SSL in native mode
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This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.76. Timer
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Generate messages in specified intervals using java.util.Timer.

2.76.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.76.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-timer</artifactId>
</dependency>
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2.77. Vert.x HTTP Client
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Camel HTTP client support with Vert.x

2.77.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.77.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-vertx-http</artifactId>
</dependency>
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2.77.3. transferException option in native mode
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To use the transferException option in native mode, you must enable support for object serialization. Refer to the native mode user guide for more information.

You will also need to enable serialization for the exception classes that you intend to serialize. For example. 

@RegisterForReflection(targets = { IllegalStateException.class, MyCustomException.class }, serialization = true)
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2.77.4. Additional Camel Quarkus configuration
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2.77.5. allowJavaSerializedObject option in native mode
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When using the allowJavaSerializedObject option in native mode, the support of serialization might need to be enabled. Please, refer to the native mode user guide for more information.

2.77.5.1. Character encodings
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Check the Character encodings section of the Native mode guide if the application is expected to send and receive requests using non-default encodings.

2.78. Validator
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Validate the payload using XML Schema and JAXP Validation.

2.78.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.78.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-validator</artifactId>
</dependency>
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2.79. Velocity
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Transform messages using a Velocity template.

2.79.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.79.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-velocity</artifactId>
</dependency>
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2.79.3. Usage
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2.79.3.1. Custom body as domain object in the native mode
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When using a custom object as message body and referencing its properties in the template in the native mode, all the classes need to be registered for reflection (see the documentation).

Example: 

@RegisterForReflection
public interface CustomBody {
}
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2.79.4. allowContextMapAll option in native mode
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The allowContextMapAll option is not supported in native mode as it requires reflective access to security sensitive camel core classes such as CamelContext & Exchange. This is considered a security risk and thus access to the feature is not provided by default.

2.79.5. Additional Camel Quarkus configuration
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This component typically loads Velocity templates from classpath. To make it work also in native mode, you need to explicitly embed the templates in the native executable by using the quarkus.native.resources.includes property.

For instance, the route below would load the Velocity template from a classpath resource named template/simple.vm: 

from("direct:start").to("velocity://template/simple.vm");
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To include this (an possibly other templates stored in .vm files in the template directory) in the native image, you would have to add something like the following to your application.properties file: 

quarkus.native.resources.includes = template/*.vm
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2.80. XML IO DSL
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An XML stack for parsing XML route definitions

2.80.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.80.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-xml-io-dsl</artifactId>
</dependency>
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2.80.3. Additional Camel Quarkus configuration
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2.80.3.1. XML file encodings
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By default, some XML file encodings may not work out of the box in native mode. Please, check the Character encodings section to learn how to fix.

2.81. XPath
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Evaluates an XPath expression against an XML payload

2.81.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.81.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-xpath</artifactId>
</dependency>
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2.81.3. Additional Camel Quarkus configuration
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This component is able to load xpath expressions from classpath resources. To make it work also in native mode, you need to explicitly embed the expression files in the native executable by using the quarkus.native.resources.includes property.

For instance, the route below would load an XPath expression from a classpath resource named myxpath.txt: 

from("direct:start").transform().xpath("resource:classpath:myxpath.txt");
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To include this (an possibly other expressions stored in .txt files) in the native image, you would have to add something like the following to your application.properties file: 

quarkus.native.resources.includes = *.txt
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2.82. XSLT
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Transforms XML payload using an XSLT template.

2.82.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.82.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-xslt</artifactId>
</dependency>
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2.82.3. Additional Camel Quarkus configuration
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To optimize XSLT processing, the extension needs to know the locations of the XSLT templates at build time. The XSLT source URIs have to be passed via the quarkus.camel.xslt.sources property. Multiple URIs can be separated by comma. 

quarkus.camel.xslt.sources = transform.xsl, classpath:path/to/my/file.xsl
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Scheme-less URIs are interpreted as classpath: URIs.

Only classpath: URIs are supported on Quarkus native mode. file:, http: and other kinds of URIs can be used on JVM mode only.

<xsl:include> and <xsl:messaging> XSLT elements are also supported in JVM mode only right now.

If aggregate DSL is used, XsltSaxonAggregationStrategy has to be used such as 

from("file:src/test/resources?noop=true&sortBy=file:name&antInclude=*.xml")
   .routeId("aggregate").noAutoStartup()
   .aggregate(new XsltSaxonAggregationStrategy("xslt/aggregate.xsl"))
   .constant(true)
   .completionFromBatchConsumer()
   .log("after aggregate body: ${body}")
   .to("mock:transformed");
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Also, it’s only supported on JVM mode.

2.82.3.1. Configuration
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TransformerFactory features can be configured using following property: 

quarkus.camel.xslt.features."http\://javax.xml.XMLConstants/feature/secure-processing"=false
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2.82.3.2. Extension functions support
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Xalan’s extension functions do work properly only when:

  1. Secure-processing is disabled
  2. Functions are defined in a separate jar
  3. Functions are augmented during native build phase. For example, they can be registered for reflection: 
@RegisterForReflection(targets = { my.Functions.class })
public class FunctionsConfiguration {
}
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Note

The content of the XSLT source URIs is parsed and compiled into Java classes at build time. These Java classes are the only source of XSLT information at runtime. The XSLT source files may not be included in the application archive at all.

Expand
Configuration propertyTypeDefault

lock quarkus.camel.xslt.sources

A comma separated list of templates to compile.

string

 

lock quarkus.camel.xslt.package-name

The package name for the generated classes.

string

org.apache.camel.quarkus.component.xslt.generated

lock quarkus.camel.xslt.features

TransformerFactory features.

Map<String,Boolean>

 

lock Configuration property fixed at build time. All other configuration properties are overridable at runtime.

2.83. YAML DSL
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A YAML stack for parsing YAML route definitions

2.83.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.83.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-yaml-dsl</artifactId>
</dependency>
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2.83.3. Usage
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2.83.3.1. Native mode
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The following constructs when defined within Camel YAML DSL markup, require you to register classes for reflection. Refer to the Native mode guide for details.

2.83.3.1.1. Bean definitions
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The YAML DSL provides the capability to define beans as follows. 

- beans:
    - name: "greetingBean"
      type: "org.acme.GreetingBean"
      properties:
        greeting: "Hello World!"
- route:
    id: "my-yaml-route"
    from:
      uri: "timer:from-yaml?period=1000"
      steps:
        - to: "bean:greetingBean"
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In this example, the GreetingBean class needs to be registered for reflection. This applies to any types that you refer to under the beans key in your YAML routes. 

@RegisterForReflection
public class GreetingBean {
}
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2.83.3.1.2. Exception handling
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Camel provides various methods of handling exceptions. Some of these require that any exception classes referenced in their DSL definitions are registered for reflection.

on-exception 

- on-exception:
    handled:
      constant: "true"
    exception:
      - "org.acme.MyHandledException"
    steps:
      - transform:
          constant: "Sorry something went wrong"
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@RegisterForReflection
public class MyHandledException {
}
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throw-exception 

- route:
    id: "my-yaml-route"
    from:
      uri: "direct:start"
      steps:
        - choice:
            when:
              - simple: "${body} == 'bad value'"
                steps:
                  - throw-exception:
                      exception-type: "org.acme.ForcedException"
                      message: "Forced exception"
            otherwise:
              steps:
                - to: "log:end"
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@RegisterForReflection
public class ForcedException {
}
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do-catch 

- route:
    id: "my-yaml-route2"
    from:
      uri: "direct:tryCatch"
      steps:
        - do-try:
            steps:
              - to: "direct:readFile"
            do-catch:
              - exception:
                  - "java.io.FileNotFoundException"
                steps:
                  - transform:
                      constant: "do-catch caught an exception"
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@RegisterForReflection(targets = FileNotFoundException.class)
public class MyClass {
}
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2.84. Zip File
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Compression and decompress streams using java.util.zip.ZipStream.

2.84.1. What’s inside
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Please refer to the above link for usage and configuration details.

2.84.2. Maven coordinates
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Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project: 

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-zipfile</artifactId>
</dependency>
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