DescribeRule.java - AWS Code Sample

DescribeRule.java

DescribeRule.java demonstrates how to describe an existing rule and determine its schedule.

Note

To run this Java (SDK V2) code example, ensure that you have set up your development environment, including your credentials. For more information, see AWS SDK for Java 2.x Developer Guide.

/* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. SPDX-License-Identifier: Apache-2.0 */ package com.example.cloudwatch; import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.cloudwatch.model.CloudWatchException; import software.amazon.awssdk.services.cloudwatchevents.CloudWatchEventsClient; import software.amazon.awssdk.services.cloudwatchevents.model.DescribeRuleRequest; import software.amazon.awssdk.services.cloudwatchevents.model.DescribeRuleResponse; /** * To run this Java V2 code example, ensure that you have setup your development environment, including your credentials. * * For information, see this documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class DescribeRule { public static void main(String[] args) { final String USAGE = "\n" + "Usage:\n" + " DescribeRule <ruleName>\n\n" + "Where:\n" + " ruleName - the name of the rule to describe.\n" ; if (args.length != 1) { System.out.println(USAGE); System.exit(1); } String ruleName = args[0]; CloudWatchEventsClient cwe = CloudWatchEventsClient.builder() .region(Region.US_WEST_2) .build(); DescribeSpecificRule(cwe, ruleName); cwe.close(); } public static void DescribeSpecificRule(CloudWatchEventsClient cwe, String ruleName) { try { DescribeRuleRequest ruleRequest = DescribeRuleRequest.builder() .name(ruleName) .build(); DescribeRuleResponse ruleResp = cwe.describeRule(ruleRequest); String schedule = ruleResp.scheduleExpression(); System.out.println("The schedule for this rule is "+schedule); } catch ( CloudWatchException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } } }

Sample Details

Service: Amazon CloudWatch

Last tested: 11/02/2020

Author: scmacdon - aws

Type: full-example