Release: AWS SDK for Java 1.0.5

You can now create more advanced pre-signed URLs using the Amazon S3 client in the AWS SDK for Java. Pre-signed URLs allow you to securely sign a request to Amazon S3 using your AWS security credentials, then give that pre-signed URL to another system to actually send the request. This is accomplished without exposing your AWS security credentials to that system.

For example, the code below creates a pre-signed PUT URL that you can give to someone to allow them to upload a new object to your bucket:

AmazonS3 s3 = new AmazonS3Client(credentials);
GeneratePresignedUrlRequest request = 
    new GeneratePresignedUrlRequest(bucketName, key, HttpMethod.PUT);
URL presignedUrl = s3.generatePresignedUrl(request);
	                       

The AWS SDK for Java includes the AWS Import/Export client, allowing you to easily work with the AWS Import/Export service and schedule jobs to import and export your data from Amazon S3.

You can now take advantage of the new Multi-Availability Zone features (Amazon Relational Database Service (Beta)) in Amazon Relational Database Service using the AWS SDK for Java.

The example below demonstrates how to create a new RDS DBInstance that has a hot backup in another EC2 Availability Zone for increased availability and durability. You can also use the SDK to update an existing DBInstance to enable the Multi-Availability Zone feature.

                   
AmazonRDS rds = new AmazonRDSClient(credentials);
DBInstance myDbInstance = rds.createDBInstance(
    new CreateDBInstanceRequest()
    .withAllocatedStorage(5)
    .withDBInstanceClass("db.m1.small")
    .withDBInstanceIdentifier(databaseInstanceName)
    .withEngine("mysql5.1")
    .withDBName("mydb")
    .withMasterUsername("admin")
    .withMasterUserPassword("pass")
    .withMultiAZ(true));
                            

This release of the AWS SDK for Java introduces streaming StAX XML unmarshallers for the Amazon EC2 client. This allows for much more efficient XML processing with less memory use and faster processing times. EC2, S3, SQS, SNS, SimpleDB, and ImportExport all use streaming XML parsing for increased performance. The remaining clients in the SDK will follow in future releases.

We continue to improve documentation in the AWS SDK for Java. This release fixes documentation errors and omissions, and makes many small tweaks to help developers use the API reference documentation.