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PutMetricAlarm.java

PutMetricAlarm.java demonstrates how to create a new CloudWatch alarm based on CPU utilization for an 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 com.example.cloudwatch; import software.amazon.awssdk.services.cloudwatch.CloudWatchClient; import software.amazon.awssdk.services.cloudwatch.model.ComparisonOperator; import software.amazon.awssdk.services.cloudwatch.model.Dimension; import software.amazon.awssdk.services.cloudwatch.model.PutMetricAlarmRequest; import software.amazon.awssdk.services.cloudwatch.model.PutMetricAlarmResponse; import software.amazon.awssdk.services.cloudwatch.model.StandardUnit; import software.amazon.awssdk.services.cloudwatch.model.Statistic; /** * Creates a new CloudWatch alarm based on CPU utilization for an instance */ public class PutMetricAlarm { public static void main(String[] args) { final String USAGE = "To run this example, supply an alarm name and instance id\n" + "Ex: DeleteAlarm <alarm-name> <instance-id>\n"; if (args.length != 2) { System.out.println(USAGE); System.exit(1); } String alarmName = args[0]; String instanceId = args[1]; CloudWatchClient cw = CloudWatchClient.builder().build(); Dimension dimension = Dimension.builder() .name("InstanceId") .value(instanceId).build(); PutMetricAlarmRequest request = PutMetricAlarmRequest.builder() .alarmName(alarmName) .comparisonOperator( ComparisonOperator.GREATER_THAN_THRESHOLD) .evaluationPeriods(1) .metricName("CPUUtilization") .namespace("AWS/EC2") .period(60) .statistic(Statistic.AVERAGE) .threshold(70.0) .actionsEnabled(false) .alarmDescription( "Alarm when server CPU utilization exceeds 70%") .unit(StandardUnit.SECONDS) .dimensions(dimension) .build(); PutMetricAlarmResponse response = cw.putMetricAlarm(request); System.out.printf( "Successfully created alarm with name %s", alarmName); } }

Sample Details

Service: cloudwatch

Author: soo-aws

Type: full-example

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