EC2 EBSのsnapshotを取得する。[SDK for Java] ref: http://qiita.com/uzresk/items/77a7ebc037334609b728

file0.java

import com.amazonaws.ClientConfiguration;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.ec2.AmazonEC2;
import com.amazonaws.services.ec2.AmazonEC2Client;
import com.amazonaws.services.ec2.model.CreateSnapshotRequest;
import com.amazonaws.services.ec2.model.DescribeVolumesResult;
import com.amazonaws.services.ec2.model.Volume;
import com.amazonaws.services.ec2.model.VolumeAttachment;

public class Ec2EbsSnapshot {

    /**
     * 第一引数で指定されたEC2のインスタンスIDに紐づくEBSのsnapshotを作成します。
     * 
     * @param args[0] ec2 instance id
     */
    public static void main(String[] args) {

        String ec2InstanceId = args[0];
        if (args.length != 1 || ec2InstanceId == null
                || "".equals(ec2InstanceId)) {
            throw new IllegalArgumentException("EC2 instance id is null.");
        }

        AWSCredentialsProvider provider = new ProfileCredentialsProvider("uzr");

        AmazonEC2 ec2_tokyo = Region.getRegion(Regions.AP_NORTHEAST_1)
                .createClient(AmazonEC2Client.class, provider,
                        new ClientConfiguration());

        DescribeVolumesResult volumes = ec2_tokyo.describeVolumes();
        String volumeId = null;
        for (Volume volume : volumes.getVolumes()) {
            for (VolumeAttachment volumeAttatchment : volume.getAttachments()) {
                if (ec2InstanceId.equals(volumeAttatchment.getInstanceId())) {
                    volumeId = volumeAttatchment.getVolumeId();
                    System.out.println(ec2InstanceId + " : " + volumeId);
                    break;
                }
            }
        }

        if (volumeId == null || "".equals(volumeId)) {
            System.out.println(ec2InstanceId + "に対応するvolumeIdが見つかりません。");
        } else {
            ec2_tokyo.createSnapshot(new CreateSnapshotRequest(volumeId,
                    volumeId + " snapshot."));
            System.out.println("snapshotの作成を要求しました。");
        }
    }
}