CopyFileIntoS3.java

import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.AmazonServiceException;

/**
 * Copy an object from one Amazon S3 bucket to another.
 */
public class test {
    public static void main(String[] args) {
        final String USAGE = "\n" + "To run this example, supply the name (key) of an S3 object, the bucket name\n"
                + "that it's contained within, and the bucket to copy it to.\n" + "\n"
                + "Ex: CopyObject <objectname> <frombucket> <tobucket>\n";

        if (args.length < 3) {
            System.out.println(USAGE);
            System.exit(1);
        }

        String object_key = args[0];
        String from_bucket = args[1];
        String to_bucket = args[2];
        
        System.out.format("Copying object %s from bucket %s to %s\n", object_key, from_bucket, to_bucket);
        final AmazonS3 s3 = AmazonS3ClientBuilder.defaultClient();
        try {
            s3.copyObject(from_bucket, object_key, to_bucket, object_key);

        } catch (AmazonServiceException e) {
            System.err.println(e.getErrorMessage());
            System.exit(1);
        }
        System.out.println("Done!");
    }
}