OpenTypeSupportTest.java

/**
 * 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.jmx;

import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.openmbean.CompositeData;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.jmx.CompositeDataConstants;
import org.apache.activemq.broker.jmx.OpenTypeSupport;
import org.apache.activemq.broker.jmx.QueueViewMBean;
import org.apache.activemq.command.ActiveMQBytesMessage;
import org.apache.activemq.command.ActiveMQQueue;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static org.junit.Assert.assertEquals;

public class OpenTypeSupportTest {

   private static final Logger LOG = LoggerFactory.getLogger(OpenTypeSupportTest.class);

   private static BrokerService brokerService;
   private static String TESTQUEUE = "testQueue";
   private static ActiveMQConnectionFactory connectionFactory;
   private static String BYTESMESSAGE_TEXT = "This is a short text";
   private static String BROKER_ADDRESS = "tcp://localhost:0";
   private static ActiveMQQueue queue = new ActiveMQQueue(TESTQUEUE);

   private String connectionUri;

   @Before
   public void setUp() throws Exception {
      brokerService = new BrokerService();
      brokerService.setPersistent(false);
      brokerService.setUseJmx(true);
      connectionUri = brokerService.addConnector(BROKER_ADDRESS).getPublishableConnectString();
      brokerService.start();
      connectionFactory = new ActiveMQConnectionFactory(connectionUri);
      sendMessage();
   }

   @After
   public void tearDown() throws Exception {
      brokerService.stop();
      brokerService.waitUntilStopped();
   }

   private static void sendMessage() throws JMSException {
      Connection conn = connectionFactory.createConnection();
      try {
         conn.start();
         Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
         Destination queue = session.createQueue(TESTQUEUE);
         BytesMessage toSend = session.createBytesMessage();
         toSend.writeBytes(BYTESMESSAGE_TEXT.getBytes());
         MessageProducer producer = session.createProducer(queue);
         producer.send(queue, toSend);
      } finally {
         conn.close();
      }
   }

   @Test
   public void bytesMessagePreview() throws Exception {
      QueueViewMBean queue = getProxyToQueueViewMBean();
      assertEquals(extractText(queue.browse()[0]), extractText(queue.browse()[0]));
   }

   @Test
   public void testBrowseByteMessageFails() throws Exception {
      ActiveMQBytesMessage bm = new ActiveMQBytesMessage();
      bm.writeBytes("123456".getBytes());
      Object result = OpenTypeSupport.convert(bm);
      LOG.info("result : " + result);
   }

   private String extractText(CompositeData message) {
      Byte content[] = (Byte[]) message.get(CompositeDataConstants.BODY_PREVIEW);
      byte out[] = new byte[content.length];
      System.arraycopy(content, 0, out, 0, content.length);
      return new String(out);
   }

   private QueueViewMBean getProxyToQueueViewMBean() throws MalformedObjectNameException, JMSException {
      final ObjectName queueViewMBeanName = new ObjectName("org.apache.activemq:type=Broker,brokerName=localhost,destinationType=Queue,destinationName=" + queue.getQueueName());
      QueueViewMBean proxy = (QueueViewMBean) brokerService.getManagementContext().newProxyInstance(queueViewMBeanName, QueueViewMBean.class, true);
      return proxy;
   }
}