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ActiveMQ example source code file (JmsCronSchedulerTest.java)
The ActiveMQ JmsCronSchedulerTest.java source code/** * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF 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.apache.activemq.broker.scheduler; import java.io.File; import java.util.List; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicInteger; import javax.jms.Connection; import javax.jms.Message; import javax.jms.MessageConsumer; import javax.jms.MessageListener; import javax.jms.MessageProducer; import javax.jms.Session; import javax.jms.TextMessage; import org.apache.activemq.EmbeddedBrokerTestSupport; import org.apache.activemq.ScheduledMessage; import org.apache.activemq.broker.BrokerService; import org.apache.activemq.util.IOHelper; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class JmsCronSchedulerTest extends EmbeddedBrokerTestSupport { private static final Logger LOG = LoggerFactory.getLogger(JmsCronSchedulerTest.class); public void testSimulatenousCron() throws Exception { final int COUNT = 10; final AtomicInteger count = new AtomicInteger(); Connection connection = createConnection(); Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); MessageConsumer consumer = session.createConsumer(destination); final CountDownLatch latch = new CountDownLatch(COUNT); consumer.setMessageListener(new MessageListener() { public void onMessage(Message message) { latch.countDown(); count.incrementAndGet(); LOG.debug("Received one Message, count is at: " + count.get()); } }); connection.start(); for (int i = 0; i < COUNT; i++) { MessageProducer producer = session.createProducer(destination); TextMessage message = session.createTextMessage("test msg "+i); message.setStringProperty(ScheduledMessage.AMQ_SCHEDULED_CRON, "* * * * *"); producer.send(message); producer.close(); //wait a couple sec so cron start time is different for next message Thread.sleep(2000); } SchedulerBroker sb = (SchedulerBroker) this.broker.getBroker().getAdaptor(SchedulerBroker.class); JobScheduler js = sb.getJobScheduler(); List<Job> list = js.getAllJobs(); assertEquals(COUNT, list.size()); latch.await(2, TimeUnit.MINUTES); //All should messages should have been received by now assertEquals(COUNT, count.get()); } @Override protected void setUp() throws Exception { bindAddress = "vm://localhost"; super.setUp(); } @Override protected BrokerService createBroker() throws Exception { return createBroker(true); } protected BrokerService createBroker(boolean delete) throws Exception { File schedulerDirectory = new File("target/scheduler"); if (delete) { IOHelper.mkdirs(schedulerDirectory); IOHelper.deleteChildren(schedulerDirectory); } BrokerService answer = new BrokerService(); answer.setPersistent(isPersistent()); answer.getManagementContext().setCreateConnector(false); answer.setDeleteAllMessagesOnStartup(true); answer.setDataDirectory("target"); answer.setSchedulerDirectoryFile(schedulerDirectory); answer.setSchedulerSupport(true); answer.setUseJmx(false); answer.addConnector(bindAddress); return answer; } } Other ActiveMQ examples (source code examples)Here is a short list of links related to this ActiveMQ JmsCronSchedulerTest.java source code file: |
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