How to download s3 object directly into memory in java
amazon-s3, task
Solution
Use the AWS SDK for Java and Apache Commons IO as such:
//import org.apache.commons.io.IOUtils
AmazonS3 s3 = new AmazonS3Client(credentials); // anonymous credentials are possible if this isn't your bucket
S3Object object = s3.getObject("bucket", "key");
byte[] byteArray = IOUtils.toByteArray(object.getObjectContent());
Not sure what you mean by "get it removed", but `IOUtils` will close the object's input stream when it's done converting it to a byte array. If you mean you want to delete the object from s3, that's as easy as:
s3.deleteObject("bucket", "key");
Problem
Is it possible to download `S3object` in `Java` directly into memory and get it removed when i'm done with the task?