Java tutorial
/* * Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved. * * WSO2 Inc. licenses this file to you under the Apache License, * Version 2.0 (the "License"); you may not use this file except * in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License 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 org.wso2.extension.siddhi.io.jms.sink.util; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import java.util.ArrayList; import java.util.List; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import javax.jms.Message; /** * Class to retain results received by JMS client so that tests can poll the result and assert against. */ public class ResultContainer { private static Log log = LogFactory.getLog(ResultContainer.class); private int eventCount; private List<String> results; private CountDownLatch latch; private int timeout = 90; public ResultContainer(int expectedEventCount) { eventCount = 0; results = new ArrayList<>(expectedEventCount); latch = new CountDownLatch(expectedEventCount); } public ResultContainer(int expectedEventCount, int timeoutInSeconds) { eventCount = 0; results = new ArrayList<>(expectedEventCount); latch = new CountDownLatch(expectedEventCount); timeout = timeoutInSeconds; } public void eventReceived(Message message) { eventCount++; results.add(message.toString()); latch.countDown(); } public void waitForResult() { try { latch.await(timeout, TimeUnit.SECONDS); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } } public Boolean assertMessageContent(String content) { try { if (latch.await(timeout, TimeUnit.SECONDS)) { for (String message : results) { if (message.contains(content)) { return true; } } return false; } else { log.error("Expected number of results not received. Only received " + eventCount + " events."); return false; } } catch (InterruptedException e) { Thread.currentThread().interrupt(); } return false; } }