10.7. AWS-S3

S3 Component

Available as of Camel 2.8

The S3 component supports storing and retrieving objetcs from/to Amazon's S3 service.

Prerequisites

You must have a valid Amazon Web Services developer account, and be signed up to use Amazon S3. More information are available at Amazon S3.

URI Format

aws-s3://bucket-name[?options]

The bucket will be created if it don't already exists. You can append query options to the URI in the following format, ?options=value&option2=value&...

URI Options

Name	Default Value	Context	Description
`amazonS3Client`	`null`	Shared	Reference to a `com.amazonaws.services.sqs.AmazonS3` in the Registry.
`accessKey`	`null`	Shared	Amazon AWS Access Key
`secretKey`	`null`	Shared	Amazon AWS Secret Key
`amazonS3Endpoint`	`null`	Shared	The region with which the AWS-S3 client wants to work with.
`region`	`null`	Producer	The region who the bucket is located. This option is used in the `com.amazonaws.services.s3.model.CreateBucketRequest`.
`deleteAfterRead`	`true`	Consumer	Delete objects from S3 after it has been retrieved.
`deleteAfterWrite`	`false`	Producer	Camel 2.11.0 Delete file object after the S3 file has been uploaded
`maxMessagesPerPoll`	10	Consumer	The maximum number of objects which can be retrieved in one poll. Used in in the `com.amazonaws.services.s3.model.ListObjectsRequest`.
`policy`	`null`	Shared	Camel 2.8.4: The policy for this queue to set in the `com.amazonaws.services.s3.AmazonS3#setBucketPolicy()` method.
`storageClass`	`null`	Producer	Camel 2.8.4: The storage class to set in the `com.amazonaws.services.s3.model.PutObjectRequest` request.
`prefix`	`null`	Consumer	Camel 2.10.1: The prefix which is used in the `com.amazonaws.services.s3.model.ListObjectsRequest` to only consume objects we are interested in.
`multiPartUpload`	`false`	Producer	Camel 2.15.0: If `true`, Camel uploads the file in multi-part format, where the part size can be specified by the `partSize` option.
`partSize`	`25 * 1024 * 1024`	Producer	Camel 2.15.0: Specifies the `partSize` used in multi-part upload. Default is 25 MB.
`serverSideEncryption`	`null`	Producer	Camel 2.16: Sets the server-side encryption algorithm when encrypting the object using AWS-managed keys. For example use AES256.
`proxyHost`	`null`	Producer	Camel 2.16: Specify a proxy host to be used inside the client definition.
`proxyPort`	`null`	Producer	Camel 2.16: Specify a proxy port to be used inside the client definition.
`includeBody`	`null`	Consumer	Camel 2.17: If `true`, the exchange body will be set to a stream to the contents of the file. If `false`, the headers will be set with the S3 object metadata but the body will be `null`.

Required S3 component options

You have to provide the amazonS3Client in the Registry or your accessKey and secretKey to access the Amazon's S3.

Batch Consumer

This component implements the Batch Consumer.

This allows you, for example, to know how many messages exist in this batch and let the Aggregator aggregate this number of messages.

Usage

Message headers evaluated by the S3 producer

Header	Type	Description
`CamelAwsS3Key`	`String`	The key under which this object will be stored.
`CamelAwsS3ContentLength`	`Long`	The content length of this object.
`CamelAwsS3ContentType`	`String`	The content type of this object.
`CamelAwsS3ContentControl`	`String`	The content control of this object.
`CamelAwsS3ContentDisposition`	`String`	The content disposition of this object.
`CamelAwsS3ContentEncoding`	`String`	The content encoding of this object.
`CamelAwsS3ContentMD5`	`String`	The md5 checksum of this object.
`CamelAwsS3LastModified`	`java.util.Date`	The last modified timestamp of this object.
`CamelAwsS3StorageClass`	`String`	Camel 2.8.4: The storage class of this object.
`CamelAwsS3CannedAcl`	`String`	Camel 2.11.0: The canned acl that will be applied to the object. see `com.amazonaws.services.s3.model.CannedAccessControlList` for allowed values.
`CamelAwsS3Acl`	`com.amazonaws.services.s3.model.AccessControlList`	Camel 2.11.0: A well-constructed Amazon S3 Access Control List object. See `com.amazonaws.services.s3.model.AccessControlList` for more details.
`CamelAwsS3Headers`	`Map<String,String>`	Camel 2.15.0: Support getting or setting custom `objectMetadata` headers.
`CamelAwsS3ServerSideEncryption`	`String`	Camel 2.16: Sets the server-side encryption algorithm when encrypting the object using AWS-managed keys. For example use AES256.

Message headers set by the S3 producer

Header	Type	Description
`CamelAwsS3ETag`	`String`	The ETag value for the newly uploaded object.
`CamelAwsS3VersionId`	`String`	The optional version ID of the newly uploaded object.

Message headers set by the S3 consumer

Header	Type	Description
`CamelAwsS3Key`	`String`	The key under which this object is stored.
`CamelAwsS3BucketName`	`String`	The name of the bucket in which this object is contained.
`CamelAwsS3ETag`	`String`	The hex encoded 128-bit MD5 digest of the associated object according to RFC 1864. This data is used as an integrity check to verify that the data received by the caller is the same data that was sent by Amazon S3.
`CamelAwsS3LastModified`	`Date`	The value of the Last-Modified header, indicating the date and time at which Amazon S3 last recorded a modification to the associated object.
`CamelAwsS3VersionId`	`String`	The version ID of the associated Amazon S3 object if available. Version IDs are only assigned to objects when an object is uploaded to an Amazon S3 bucket that has object versioning enabled.
`CamelAwsS3ContentType`	`String`	The Content-Type HTTP header, which indicates the type of content stored in the associated object. The value of this header is a standard MIME type.
`CamelAwsS3ContentMD5`	`String`	The base64 encoded 128-bit MD5 digest of the associated object (content - not including headers) according to RFC 1864. This data is used as a message integrity check to verify that the data received by Amazon S3 is the same data that the caller sent.
`CamelAwsS3ContentLength`	`Long`	The Content-Length HTTP header indicating the size of the associated object in bytes.
`CamelAwsS3ContentEncoding`	`String`	The optional Content-Encoding HTTP header specifying what content encodings have been applied to the object and what decoding mechanisms must be applied in order to obtain the media-type referenced by the Content-Type field.
`CamelAwsS3ContentDisposition`	`String`	The optional Content-Disposition HTTP header, which specifies presentational information such as the recommended filename for the object to be saved as.
`CamelAwsS3ContentControl`	`String`	The optional Cache-Control HTTP header which allows the user to specify caching behavior along the HTTP request/reply chain.
`CamelAwsS3ServerSideEncryption`	`String`	Camel 2.16: The server-side encryption algorithm when encrypting the object using AWS-managed keys.

Advanced AmazonS3 configuration

If your Camel Application is running behind a firewall or if you need to have more control over the AmazonS3 instance configuration, you can create your own instance:

AWSCredentials awsCredentials = new BasicAWSCredentials("myAccessKey", "mySecretKey");

ClientConfiguration clientConfiguration = new ClientConfiguration();
clientConfiguration.setProxyHost("http://myProxyHost");
clientConfiguration.setProxyPort(8080);

AmazonS3 client = new AmazonS3Client(awsCredentials, clientConfiguration);

registry.bind("client", client);

and refer to it in your Camel aws-s3 component configuration:

from("aws-s3://MyBucket?amazonS3Client=#client&delay=5000&maxMessagesPerPoll=5")
.to("mock:result");

Dependencies

Maven users will need to add the following dependency to their pom.xml.

pom.xml

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-aws</artifactId>
    <version>${camel-version}</version>
</dependency>

where $\{camel-version\} must be replaced by the actual version of Camel (2.8 or higher).

AWS Component

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