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CreateAndDescribeSnapshot.java

CreateAndDescribeSnapshot demonstrates how to create an Amazon Redshift cluster snapshot and describe existing snapshots.

/** * Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * This file is licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. A copy of * the License is located at * * http://aws.amazon.com/apache2.0/ * * This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR * CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. */ import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import com.amazonaws.services.redshift.model.*; public class CreateAndDescribeSnapshot { public static AmazonRedshift client; public static String clusterIdentifier = "***provide a cluster identifier***"; public static long sleepTime = 20; public static void main(String[] args) throws IOException { // Default client using the {@link com.amazonaws.auth.DefaultAWSCredentialsProviderChain} client = AmazonRedshiftClientBuilder.defaultClient(); try { // Unique snapshot identifier String snapshotId = "my-snapshot-" + (new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss")).format(new Date()); Date createDate = createManualSnapshot(snapshotId); waitForSnapshotAvailable(snapshotId); describeSnapshots(); deleteManualSnapshotsBefore(createDate); describeSnapshots(); } catch (Exception e) { System.err.println("Operation failed: " + e.getMessage()); } } private static Date createManualSnapshot(String snapshotId) { CreateClusterSnapshotRequest request = new CreateClusterSnapshotRequest() .withClusterIdentifier(clusterIdentifier) .withSnapshotIdentifier(snapshotId); Snapshot snapshot = client.createClusterSnapshot(request); System.out.format("Created cluster snapshot: %s\n", snapshotId); return snapshot.getSnapshotCreateTime(); } private static void describeSnapshots() { DescribeClusterSnapshotsRequest request = new DescribeClusterSnapshotsRequest() .withClusterIdentifier(clusterIdentifier); DescribeClusterSnapshotsResult result = client.describeClusterSnapshots(request); printResultSnapshots(result); } private static void deleteManualSnapshotsBefore(Date creationDate) { DescribeClusterSnapshotsRequest request = new DescribeClusterSnapshotsRequest() .withEndTime(creationDate) .withClusterIdentifier(clusterIdentifier) .withSnapshotType("manual"); DescribeClusterSnapshotsResult result = client.describeClusterSnapshots(request); for (Snapshot s : result.getSnapshots()) { DeleteClusterSnapshotRequest deleteRequest = new DeleteClusterSnapshotRequest() .withSnapshotIdentifier(s.getSnapshotIdentifier()); Snapshot deleteResult = client.deleteClusterSnapshot(deleteRequest); System.out.format("Deleted snapshot %s\n", deleteResult.getSnapshotIdentifier()); } } private static void printResultSnapshots(DescribeClusterSnapshotsResult result) { System.out.println("\nSnapshot listing:"); for (Snapshot snapshot : result.getSnapshots()) { System.out.format("Identifier: %s\n", snapshot.getSnapshotIdentifier()); System.out.format("Snapshot type: %s\n", snapshot.getSnapshotType()); System.out.format("Snapshot create time: %s\n", snapshot.getSnapshotCreateTime()); System.out.format("Snapshot status: %s\n\n", snapshot.getStatus()); } } private static Boolean waitForSnapshotAvailable(String snapshotId) throws InterruptedException { Boolean snapshotAvailable = false; System.out.println("Wating for snapshot to become available."); while (!snapshotAvailable) { DescribeClusterSnapshotsResult result = client.describeClusterSnapshots(new DescribeClusterSnapshotsRequest() .withSnapshotIdentifier(snapshotId)); String status = (result.getSnapshots()).get(0).getStatus(); if (status.equalsIgnoreCase("available")) { snapshotAvailable = true; } else { System.out.print("."); Thread.sleep(sleepTime*1000); } } return snapshotAvailable; } }

Sample Details

Service: redshift

Last tested: 2015-02-19

Author: AWS

Type: full-example

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