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Chapter 8. AS2 Component
The camel-as2 component for Karaf is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production.
These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process. For more information about the support scope of Red Hat Technology Preview features, see https://access.redhat.com/support/offerings/techpreview.
Available as of Camel version 2.22
The AS2 component provides transport of EDI messages using the HTTP transfer protocol as specified in RFC4130.
This component is currently a work in progress. Expect URI options and path and query parameters to change in future versions of this component.
Maven users will need to add the following dependency to their pom.xml for this component:
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-as2</artifactId>
<version>x.x.x</version>
<!-- use the same version as your Camel core version -->
</dependency>8.1. URI format
as2://apiName/methodName
apiName can be one of:
- client
- server
8.2. AS2 Options
The AS2 component supports 2 options, which are listed below.
| Name | Description | Default | Type |
|---|---|---|---|
| configuration (common) | To use the shared configuration | AS2Configuration | |
| resolveProperty Placeholders (advanced) | Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders. | true | boolean |
The AS2 endpoint is configured using URI syntax:
as2:apiName
with the following path and query parameters:
8.2.1. Path Parameters (1 parameters):
| Name | Description | Default | Type |
|---|---|---|---|
| apiName | Required What kind of operation to perform | AS2ApiName |
8.2.2. Query Parameters (30 parameters):
| Name | Description | Default | Type |
|---|---|---|---|
| as2From (common) | The value of the AS2From header of AS2 message. | String | |
| as2MessageStructure (common) | The structure of AS2 Message. One of: PLAIN - No encryption, no signature, SIGNED - No encryption, signature, ENCRYPTED - Encryption, no signature, ENCRYPTED_SIGNED - Encryption, signature | AS2MessageStructure | |
| as2To (common) | The value of the AS2To header of AS2 message. | String | |
| as2Version (common) | The version of the AS2 protocol. | 1.1 | String |
| clientFqdn (common) | The Client Fully Qualified Domain Name (FQDN). Used in message ids sent by endpoint. | camel.apache.org | String |
| dispositionNotificationTo (common) | The value of the Disposition-Notification-To header. Assigning a value to this parameter requests a message disposition notification (MDN) for the AS2 message. | String | |
| ediMessageTransferEncoding (common) | The transfer encoding of EDI message. | String | |
| ediMessageType (common) | The content type of EDI message. One of application/edifact, application/edi-x12, application/edi-consent | ContentType | |
| encryptingAlgorithm (common) | The algorithm used to encrypt EDI message. | AS2EncryptionAlgorithm | |
| encryptingCertificateChain (common) | The chain of certificates used to encrypt EDI message. | Certificate[] | |
| encryptingPrivateKey (common) | The key used to encrypt the EDI message. | PrivateKey | |
| from (common) | The value of the From header of AS2 message. | String | |
| inBody (common) | Sets the name of a parameter to be passed in the exchange In Body | String | |
| methodName (common) | Required What sub operation to use for the selected operation | String | |
| requestUri (common) | The request URI of EDI message. | / | String |
| server (common) | The value included in the Server message header identifying the AS2 Server. | Camel AS2 Server Endpoint | String |
| serverFqdn (common) | The Server Fully Qualified Domain Name (FQDN). Used in message ids sent by endpoint. | camel.apache.org | String |
| serverPortNumber (common) | The port number of server. | Integer | |
| signedReceiptMicAlgorithms (common) | The list of algorithms, in order of preference, requested to generate a message integrity check (MIC) returned in message dispostion notification (MDN) | String[] | |
| signingAlgorithm (common) | The algorithm used to sign EDI message. | AS2SignatureAlgorithm | |
| signingCertificateChain (common) | The chain of certificates used to sign EDI message. | Certificate[] | |
| signingPrivateKey (common) | The key used to sign the EDI message. | PrivateKey | |
| subject (common) | The value of Subject header of AS2 message. | String | |
| targetHostname (common) | The host name (IP or DNS name) of target host. | String | |
| targetPortNumber (common) | The port number of target host. -1 indicates the scheme default port. | Integer | |
| userAgent (common) | The value included in the User-Agent message header identifying the AS2 user agent. | Camel AS2 Client Endpoint | String |
| bridgeErrorHandler (consumer) | Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored. | false | boolean |
| exceptionHandler (consumer) | To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored. | ExceptionHandler | |
| exchangePattern (consumer) | Sets the exchange pattern when the consumer creates an exchange. | ExchangePattern | |
| synchronous (advanced) | Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported). | false | boolean |
8.3. Spring Boot Auto-Configuration
The component supports 28 options, which are listed below.
| Name | Description | Default | Type |
|---|---|---|---|
| camel.component.as2.configuration.api-name | What kind of operation to perform | AS2ApiName | |
| camel.component.as2.configuration.as2-from | The value of the AS2From header of AS2 message. | String | |
| camel.component.as2.configuration.as2-message-structure | The structure of AS2 Message. One of: PLAIN - No encryption, no signature, SIGNED - No encryption, signature, ENCRYPTED - Encryption, no signature, ENCRYPTED_SIGNED - Encryption, signature | AS2MessageStructure | |
| camel.component.as2.configuration.as2-to | The value of the AS2To header of AS2 message. | String | |
| camel.component.as2.configuration.as2-version | The version of the AS2 protocol. | 1.1 | String |
| camel.component.as2.configuration.client-fqdn | The Client Fully Qualified Domain Name (FQDN). Used in message ids sent by endpoint. | camel.apache.org | String |
| camel.component.as2.configuration.disposition-notification-to | The value of the Disposition-Notification-To header. Assigning a value to this parameter requests a message disposition notification (MDN) for the AS2 message. | String | |
| camel.component.as2.configuration.edi-message-transfer-encoding | The transfer encoding of EDI message. | String | |
| camel.component.as2.configuration.edi-message-type | The content type of EDI message. One of application/edifact, application/edi-x12, application/edi-consent | ContentType | |
| camel.component.as2.configuration.encrypting-algorithm | The algorithm used to encrypt EDI message. | AS2EncryptionAlgorithm | |
| camel.component.as2.configuration.encrypting-certificate-chain | The chain of certificates used to encrypt EDI message. | Certificate[] | |
| camel.component.as2.configuration.encrypting-private-key | The key used to encrypt the EDI message. | PrivateKey | |
| camel.component.as2.configuration.from | The value of the From header of AS2 message. | String | |
| camel.component.as2.configuration.method-name | What sub operation to use for the selected operation | String | |
| camel.component.as2.configuration.request-uri | The request URI of EDI message. | / | String |
| camel.component.as2.configuration.server | The value included in the Server message header identifying the AS2 Server. | Camel AS2 Server Endpoint | String |
| camel.component.as2.configuration.server-fqdn | The Server Fully Qualified Domain Name (FQDN). Used in message ids sent by endpoint. | camel.apache.org | String |
| camel.component.as2.configuration.server-port-number | The port number of server. | Integer | |
| camel.component.as2.configuration.signed-receipt-mic-algorithms | The list of algorithms, in order of preference, requested to generate a message integrity check (MIC) returned in message dispostion notification (MDN) | String[] | |
| camel.component.as2.configuration.signing-algorithm | The algorithm used to sign EDI message. | AS2SignatureAlgorithm | |
| camel.component.as2.configuration.signing-certificate-chain | The chain of certificates used to sign EDI message. | Certificate[] | |
| camel.component.as2.configuration.signing-private-key | The key used to sign the EDI message. | PrivateKey | |
| camel.component.as2.configuration.subject | The value of Subject header of AS2 message. | String | |
| camel.component.as2.configuration.target-hostname | The host name (IP or DNS name) of target host. | String | |
| camel.component.as2.configuration.target-port-number | The port number of target host. -1 indicates the scheme default port. | Integer | |
| camel.component.as2.configuration.user-agent | The value included in the User-Agent message header identifying the AS2 user agent. | Camel AS2 Client Endpoint | String |
| camel.component.as2.enabled | Whether to enable auto configuration of the as2 component. This is enabled by default. | Boolean | |
| camel.component.as2.resolve-property-placeholders | Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders. | true | Boolean |
8.4. Client Endpoints:
Client endpoints use the endpoint prefix client followed by the name of a method and associated options described next. The endpoint URI MUST contain the prefix client.
as2://client/method?[options]
Endpoint options that are not mandatory are denoted by []. When there are no mandatory options for an endpoint, one of the set of [] options MUST be provided. Producer endpoints can also use a special option inBody that in turn should contain the name of the endpoint option whose value will be contained in the Camel Exchange In message.
Any of the endpoint options can be provided in either the endpoint URI, or dynamically in a message header. The message header name must be of the format CamelAS2.<option>. Note that the inBody option overrides message header, i.e. the endpoint option inBody=option would override a CamelAS2.option header.
If a value is not provided for the option defaultRequest either in the endpoint URI or in a message header, it will be assumed to be null. Note that the null value will only be used if other options do not satisfy matching endpoints.
In case of AS2 API errors the endpoint will throw a RuntimeCamelException with a org.apache.http.HttpException derived exception cause.
| Method | Options | Result Body Type |
|---|---|---|
| send | ediMessage, requestUri, subject, from, as2From, as2To, as2MessageStructure, ediMessageContentType, ediMessageTransferEncoding, dispositionNotificationTo, signedReceiptMicAlgorithms | org.apache.http.protocol.HttpCoreContext |
URI Options for client
| Name | Type |
|---|---|
| ediMessage | String |
| requestUri | String |
| subject | String |
| from | String |
| as2From | String |
| as2To | String |
| as2MessageStructure | org.apache.camel.component.as2.api.AS2MessageStructure |
| ediMessageContentType | String |
| ediMessageTransferEncoding | String |
| dispositionNotificationTo | String |
| signedReceiptMicAlgorithms | String[] |
8.5. Server Endpoints:
Server endpoints use the endpoint prefix server followed by the name of a method and associated options described next. The endpoint URI MUST contain the prefix server.
as2://server/method?[options]
Endpoint options that are not mandatory are denoted by []. When there are no mandatory options for an endpoint, one of the set of [] options MUST be provided. Producer endpoints can also use a special option inBody that in turn should contain the name of the endpoint option whose value will be contained in the Camel Exchange In message.
Any of the endpoint options can be provided in either the endpoint URI, or dynamically in a message header. The message header name must be of the format CamelAS2.<option>. Note that the inBody option overrides message header, i.e. the endpoint option inBody=option would override a CamelAS2.option header.
If a value is not provided for the option defaultRequest either in the endpoint URI or in a message header, it will be assumed to be null. Note that the null value will only be used if other options do not satisfy matching endpoints.
In case of AS2 API errors the endpoint will throw a RuntimeCamelException with a org.apache.http.HttpException derived exception cause.
| Method | Options | Result Body Type |
|---|---|---|
| listen | requestUriPattern | org.apache.http.protocol.HttpCoreContext |
URI Options for server
| Name | Type |
|---|---|
| requestUriPattern | String |
