AWS S3

<dependency>
	<groupId>org.eclipse.store</groupId>
	<artifactId>afs-aws-s3</artifactId>
	<version>1.4.0</version>
</dependency>
<dependency>
	<groupId>software.amazon.awssdk</groupId>
	<artifactId>s3</artifactId>
	<version>2.26.14</version>
</dependency>

General Purpose Buckets

For general purpose buckets you can create a S3Connector handing over a S3Client. Please refer to the official AWS SDK Documentation for details.

S3Client client = S3Client.builder()
	.credentialsProvider(StaticCredentialsProvider.create(
		AwsBasicCredentials.create(ACCESS_KEY, SECRET_ACCESS_KEY)
	))
	.region(Region.EU_NORTH_1)
	.build()
;
BlobStoreFileSystem fileSystem = BlobStoreFileSystem.New(
	S3Connector.Caching(client)
);
EmbeddedStorage.start(fileSystem.ensureDirectoryPath("bucket-name", "folder", "subfolder"));

Configuration

When using external configuration, the properties can be set as follows.

eclipsestore.properties
# optional, enforces checks
storage-filesystem.target=aws.s3

storage-directory=bucket-name/folder/subfolder
storage-filesystem.aws.s3.credentials.type=static
storage-filesystem.aws.s3.credentials.access-key-id=my-access-key-id
storage-filesystem.aws.s3.credentials.secret-access-key=my-secret-access-key
storage-filesystem.aws.s3.region=us-east-1

Directory Buckets

If you want to use directory buckets just create a S3Connector with a different factory method. Additionally you have to specify the zonal endpoint.

S3Client client = S3Client.builder()
	.credentialsProvider(StaticCredentialsProvider.create(
		AwsBasicCredentials.create(ACCESS_KEY, SECRET_ACCESS_KEY)
	))
	.region(Region.EU_NORTH_1)
	.endpointOverride(new URI("https://s3express-eun1-az1.eu-north-1.amazonaws.com"))
	.build()
;
BlobStoreFileSystem fileSystem = BlobStoreFileSystem.New(
	S3Connector.CachingDirectory(client)
);
EmbeddedStorage.start(fileSystem.ensureDirectoryPath("bucket-name", "folder", "subfolder"));

Configuration

When using external configuration, the properties can be set as follows.

eclipsestore.properties
storage-directory=bucket-name/folder/subfolder
storage-filesystem.aws.s3.directory-bucket=true
storage-filesystem.aws.s3.credentials.type=static
storage-filesystem.aws.s3.credentials.access-key-id=my-access-key-id
storage-filesystem.aws.s3.credentials.secret-access-key=my-secret-access-key
storage-filesystem.aws.s3.region=eu-north-1
storage-filesystem.aws.s3.endpoint-override=https://s3express-eun1-az1.eu-north-1.amazonaws.com

Supported properties

Property Description Type

endpoint-override

The endpoint with which the SDK should communicate.

String

cache

Defines if the S3Connector should use caching.

Boolean

directory-bucket

true if a directory bucket is used, false for general purpose buckets. For details see the official AWS documentation [1] [2]

Boolean

region

Configure the region with which the SDK should communicate. If this is not specified, the SDK will attempt to identify the endpoint automatically using the following logic:

  1. Check the 'aws.region' system property for the region.

  2. Check the 'AWS_REGION' environment variable for the region.

  3. Check the {user.home}/.aws/credentials and {user.home}/.aws/config files for the region.

  4. If running in EC2, check the EC2 metadata service for the region.

String

credentials.type

The type of the credentials provider. Supported values are:

  • "environment-variables" Credentials will be loaded from the AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_SESSION_TOKEN environment variables.

  • "system-properties" Credentials will be loaded from the aws.accessKeyId, aws.secretAccessKey and aws.sessionToken system properties.

  • "static" Credentials will be loaded from the credentials.access-key-id and credentials.secret-access-key properties.

  • "default" Credentials provider chain that looks for credentials in this order:

    1. Java System Properties - aws.accessKeyId and aws.secretKey

    2. Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY

    3. Credential profiles file at the default location (~/.aws/credentials) shared by all AWS SDKs and the AWS CLI

    4. Credentials delivered through the Amazon EC2 container service if AWS_CONTAINER_CREDENTIALS_RELATIVE_URI" environment variable is set and security manager has permission to access the variable,

    5. Instance profile credentials delivered through the Amazon EC2 metadata service

String

credentials.access-key-id

The access key id, used when "credentials.type" is "static".

String

credentials.secret-access-key

The secret access key, used when "credentials.type" is "static".

String
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