Java tutorial
/* * 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.ivory.messaging; import java.io.InputStream; import java.io.OutputStream; import javax.jms.Connection; import javax.jms.ConnectionFactory; import javax.jms.Destination; import javax.jms.JMSException; import javax.jms.MapMessage; import javax.jms.MessageConsumer; import javax.jms.Session; import org.apache.activemq.ActiveMQConnectionFactory; import org.apache.activemq.broker.BrokerService; import org.apache.activemq.util.ByteArrayInputStream; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; import org.apache.hadoop.hdfs.MiniDFSCluster; import org.apache.hadoop.io.IOUtils; import org.apache.ivory.messaging.EntityInstanceMessage.ARG; import org.testng.Assert; import org.testng.annotations.AfterClass; import org.testng.annotations.BeforeClass; import org.testng.annotations.Test; public class FeedProducerTest { private String[] args; private static final String BROKER_URL = "vm://localhost1?broker.useJmx=false&broker.persistent=true"; // private static final String BROKER_URL = // "tcp://localhost:61616?daemon=true"; private static final String BROKER_IMPL_CLASS = "org.apache.activemq.ActiveMQConnectionFactory"; private static final String TOPIC_NAME = "Ivory.process1.click-logs"; private BrokerService broker; private Path logFile; private volatile AssertionError error; private MiniDFSCluster dfsCluster; private Configuration conf = new Configuration(); @BeforeClass public void setup() throws Exception { this.dfsCluster = new MiniDFSCluster(conf, 1, true, null); logFile = new Path(conf.get("fs.default.name"), "/ivory/feed/agg-logs/instance-2012-01-01-10-00.csv"); args = new String[] { "-" + ARG.entityName.getArgName(), TOPIC_NAME, "-" + ARG.feedNames.getArgName(), "click-logs", "-" + ARG.feedInstancePaths.getArgName(), "/click-logs/10/05/05/00/20", "-" + ARG.workflowId.getArgName(), "workflow-01-00", "-" + ARG.runId.getArgName(), "1", "-" + ARG.nominalTime.getArgName(), "2011-01-01-01-00", "-" + ARG.timeStamp.getArgName(), "2012-01-01-01-00", "-" + ARG.brokerUrl.getArgName(), BROKER_URL, "-" + ARG.brokerImplClass.getArgName(), (BROKER_IMPL_CLASS), "-" + ARG.entityType.getArgName(), ("FEED"), "-" + ARG.operation.getArgName(), ("DELETE"), "-" + ARG.logFile.getArgName(), (logFile.toString()), "-" + ARG.topicName.getArgName(), (TOPIC_NAME), "-" + ARG.status.getArgName(), ("SUCCEEDED"), "-" + ARG.brokerTTL.getArgName(), "10", "-" + ARG.cluster.getArgName(), "corp" }; broker = new BrokerService(); broker.setUseJmx(true); broker.setDataDirectory("target/activemq"); broker.addConnector(BROKER_URL); broker.start(); } @AfterClass public void tearDown() throws Exception { broker.deleteAllMessages(); broker.stop(); this.dfsCluster.shutdown(); } @Test public void testLogFile() throws Exception { FileSystem fs = dfsCluster.getFileSystem(); OutputStream out = fs.create(logFile); InputStream in = new ByteArrayInputStream(("instancePaths=/ivory/feed/agg-logs/path1/2010/10/10/20," + "/ivory/feed/agg-logs/path1/2010/10/10/21," + "/ivory/feed/agg-logs/path1/2010/10/10/22," + "/ivory/feed/agg-logs/path1/2010/10/10/23").getBytes()); IOUtils.copyBytes(in, out, conf); testProcessMessageCreator(); } @Test public void testEmptyLogFile() throws Exception { FileSystem fs = dfsCluster.getFileSystem(); OutputStream out = fs.create(logFile); InputStream in = new ByteArrayInputStream(("instancePaths=").getBytes()); IOUtils.copyBytes(in, out, conf); new MessageProducer().run(this.args); } private void testProcessMessageCreator() throws Exception { Thread t = new Thread() { @Override public void run() { try { consumer(); } catch (AssertionError e) { error = e; } catch (JMSException ignore) { } } }; t.start(); Thread.sleep(1500); new MessageProducer().run(this.args); t.join(); if (error != null) { throw error; } } private void consumer() throws JMSException { ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(BROKER_URL); Connection connection = connectionFactory.createConnection(); connection.start(); Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); Destination destination = session.createTopic(TOPIC_NAME); MessageConsumer consumer = session.createConsumer(destination); // wait till you get atleast one message MapMessage m; for (m = null; m == null;) m = (MapMessage) consumer.receive(); System.out.println("Consumed: " + m.toString()); assertMessage(m); Assert.assertEquals(m.getString(ARG.feedInstancePaths.getArgName()), "/ivory/feed/agg-logs/path1/2010/10/10/20"); for (m = null; m == null;) m = (MapMessage) consumer.receive(); System.out.println("Consumed: " + m.toString()); assertMessage(m); Assert.assertEquals(m.getString(ARG.feedInstancePaths.getArgName()), "/ivory/feed/agg-logs/path1/2010/10/10/21"); for (m = null; m == null;) m = (MapMessage) consumer.receive(); System.out.println("Consumed: " + m.toString()); assertMessage(m); Assert.assertEquals(m.getString(ARG.feedInstancePaths.getArgName()), "/ivory/feed/agg-logs/path1/2010/10/10/22"); for (m = null; m == null;) m = (MapMessage) consumer.receive(); System.out.println("Consumed: " + m.toString()); assertMessage(m); Assert.assertEquals(m.getString(ARG.feedInstancePaths.getArgName()), "/ivory/feed/agg-logs/path1/2010/10/10/23"); connection.close(); } private void assertMessage(MapMessage m) throws JMSException { Assert.assertEquals(m.getString(ARG.entityName.getArgName()), TOPIC_NAME); Assert.assertEquals(m.getString(ARG.operation.getArgName()), "DELETE"); Assert.assertEquals(m.getString(ARG.workflowId.getArgName()), "workflow-01-00"); Assert.assertEquals(m.getString(ARG.runId.getArgName()), "1"); Assert.assertEquals(m.getString(ARG.nominalTime.getArgName()), "2011-01-01T01:00Z"); Assert.assertEquals(m.getString(ARG.timeStamp.getArgName()), "2012-01-01T01:00Z"); Assert.assertEquals(m.getString(ARG.status.getArgName()), "SUCCEEDED"); } }