ChangeSentMessageTest xref

    1   /***
    2    *
    3    * Copyright 2004 Protique Ltd
    4    *
    5    * Licensed under the Apache License, Version 2.0 (the "License");
    6    * you may not use this file except in compliance with the License.
    7    * You may obtain a copy of the License at
    8    *
    9    * http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   *
    17   **/
    18
    19  package org.codehaus.activemq.usecases;
    20  import java.util.HashMap;
    21  import javax.jms.Connection;
    22  import javax.jms.Destination;
    23  import javax.jms.MessageConsumer;
    24  import javax.jms.MessageProducer;
    25  import javax.jms.ObjectMessage;
    26  import javax.jms.Session;
    27  import org.codehaus.activemq.TestSupport;
    28
    29  /***
    30   * @version $Revision: 1.1 $
    31   */
    32  public class ChangeSentMessageTest extends TestSupport {
    33      private static final int COUNT = 200;
    34      private static final String VALUE_NAME = "value";
    35
    36      /***
    37       * test Object messages can be changed after sending with no side-affects
    38       * @throws Exception
    39       */
    40      public void testDoChangeSentMessage() throws Exception {
    41          Destination destination = createDestination("foo.bar");
    42          Connection connection = createConnection();
    43          connection.start();
    44          Session consumerSession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    45          MessageConsumer consumer = consumerSession.createConsumer(destination);
    46          Session publisherSession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    47          MessageProducer producer = publisherSession.createProducer(destination);
    48          HashMap map = new HashMap();
    49          ObjectMessage message = publisherSession.createObjectMessage(map);
    50          for (int i = 0;i < COUNT;i++) {
    51              map.put(VALUE_NAME, new Integer(i));
    52              producer.send(message);
    53              assertTrue(message.getObject()==map);
    54          }
    55          for (int i = 0;i < COUNT;i++) {
    56              ObjectMessage msg = (ObjectMessage) consumer.receive();
    57              HashMap receivedMap = (HashMap) msg.getObject();
    58              Integer intValue = (Integer) receivedMap.get(VALUE_NAME);
    59              assertTrue(intValue.intValue() == i);
    60          }
    61      }
    62  }