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MonitorInstance.java

MonitorInstance.java demonstrates how to toggle detailed monitoring for an EC2 instance.

/* * Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * 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 * * or in the "license" file accompanying this file. 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. */ package aws.example.ec2; import com.amazonaws.services.ec2.AmazonEC2; import com.amazonaws.services.ec2.AmazonEC2ClientBuilder; import com.amazonaws.services.ec2.model.MonitorInstancesRequest; import com.amazonaws.services.ec2.model.UnmonitorInstancesRequest; import com.amazonaws.services.ec2.model.DryRunResult; import com.amazonaws.services.ec2.model.DryRunSupportedRequest; /** * Toggles detailed monitoring for an EC2 instance */ public class MonitorInstance { public static void monitorInstance(String instance_id) { final AmazonEC2 ec2 = AmazonEC2ClientBuilder.defaultClient(); DryRunSupportedRequest<MonitorInstancesRequest> dry_request = () -> { MonitorInstancesRequest request = new MonitorInstancesRequest() .withInstanceIds(instance_id); return request.getDryRunRequest(); }; DryRunResult dry_response = ec2.dryRun(dry_request); if (!dry_response.isSuccessful()) { System.out.printf( "Failed dry run to enable monitoring on instance %s", instance_id); throw dry_response.getDryRunResponse(); } MonitorInstancesRequest request = new MonitorInstancesRequest() .withInstanceIds(instance_id); ec2.monitorInstances(request); System.out.printf( "Successfully enabled monitoring for instance %s", instance_id); } public static void unmonitorInstance(String instance_id) { final AmazonEC2 ec2 = AmazonEC2ClientBuilder.defaultClient(); DryRunSupportedRequest<UnmonitorInstancesRequest> dry_request = () -> { UnmonitorInstancesRequest request = new UnmonitorInstancesRequest() .withInstanceIds(instance_id); return request.getDryRunRequest(); }; DryRunResult dry_response = ec2.dryRun(dry_request); if (!dry_response.isSuccessful()) { System.out.printf( "Failed dry run to disable monitoring on instance %s", instance_id); throw dry_response.getDryRunResponse(); } UnmonitorInstancesRequest request = new UnmonitorInstancesRequest() .withInstanceIds(instance_id); ec2.unmonitorInstances(request); System.out.printf( "Successfully disabled monitoring for instance %s", instance_id); } public static void main(String[] args) { final String USAGE = "To run this example, supply an instance id and a monitoring " + "status\n" + "Ex: MonitorInstance <instance-id> <true|false>\n"; if (args.length != 2) { System.out.println(USAGE); System.exit(1); } String instance_id = args[0]; boolean monitor = Boolean.valueOf(args[1]); if (monitor) { monitorInstance(instance_id); } else { unmonitorInstance(instance_id); } } }

Sample Details

Service: ec2

Last tested: 2018-05-22

Author: soo-aws

Type: full-example

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