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              <h1>Simple MDB with Descriptor</h1>
            </div>
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                <p><em>Help us document this example! Click the blue pencil icon in the upper right to edit this page.</em></p>
<h2>ChatBean</h2>
<pre><code>package org.superbiz.mdbdesc;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;

public class ChatBean implements MessageListener {

    private ConnectionFactory connectionFactory;

    private Queue answerQueue;

    public void onMessage(Message message) {
        try {

            final TextMessage textMessage = (TextMessage) message;
            final String question = textMessage.getText();

            if (&quot;Hello World!&quot;.equals(question)) {

                respond(&quot;Hello, Test Case!&quot;);
            } else if (&quot;How are you?&quot;.equals(question)) {

                respond(&quot;I&#39;m doing well.&quot;);
            } else if (&quot;Still spinning?&quot;.equals(question)) {

                respond(&quot;Once every day, as usual.&quot;);
            }
        } catch (JMSException e) {
            throw new IllegalStateException(e);
        }
    }

    private void respond(String text) throws JMSException {

        Connection connection = null;
        Session session = null;

        try {
            connection = connectionFactory.createConnection();
            connection.start();

            // Create a Session
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

            // Create a MessageProducer from the Session to the Topic or Queue
            MessageProducer producer = session.createProducer(answerQueue);
            producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);

            // Create a message
            TextMessage message = session.createTextMessage(text);

            // Tell the producer to send the message
            producer.send(message);
        } finally {
            // Clean up
            if (session != null) session.close();
            if (connection != null) connection.close();
        }
    }
}
</code></pre>
<h2>ejb-jar.xml</h2>
<pre><code>&lt;ejb-jar xmlns=&quot;http://java.sun.com/xml/ns/javaee&quot; metadata-complete=&quot;true&quot;&gt;
  &lt;enterprise-beans&gt;

    &lt;message-driven&gt;

      &lt;ejb-name&gt;ChatBean&lt;/ejb-name&gt;
      &lt;ejb-class&gt;org.superbiz.mdbdesc.ChatBean&lt;/ejb-class&gt;

      &lt;messaging-type&gt;javax.jms.MessageListener&lt;/messaging-type&gt;

      &lt;activation-config&gt;
        &lt;activation-config-property&gt;
          &lt;activation-config-property-name&gt;destination&lt;/activation-config-property-name&gt;
          &lt;activation-config-property-value&gt;ChatBean&lt;/activation-config-property-value&gt;
        &lt;/activation-config-property&gt;
        &lt;activation-config-property&gt;
          &lt;activation-config-property-name&gt;destinationType&lt;/activation-config-property-name&gt;
          &lt;activation-config-property-value&gt;javax.jms.Queue&lt;/activation-config-property-value&gt;
        &lt;/activation-config-property&gt;
      &lt;/activation-config&gt;

      &lt;resource-ref&gt;
        &lt;res-ref-name&gt;java:comp/env/org.superbiz.mdbdesc.ChatBean/connectionFactory&lt;/res-ref-name&gt;
        &lt;res-type&gt;javax.jms.ConnectionFactory&lt;/res-type&gt;
        &lt;injection-target&gt;
          &lt;injection-target-class&gt;org.superbiz.mdbdesc.ChatBean&lt;/injection-target-class&gt;
          &lt;injection-target-name&gt;connectionFactory&lt;/injection-target-name&gt;
        &lt;/injection-target&gt;
      &lt;/resource-ref&gt;

      &lt;resource-env-ref&gt;
        &lt;resource-env-ref-name&gt;java:comp/env/AnswerQueue&lt;/resource-env-ref-name&gt;
        &lt;resource-env-ref-type&gt;javax.jms.Queue&lt;/resource-env-ref-type&gt;
        &lt;mapped-name&gt;AnswerQueue&lt;/mapped-name&gt;
        &lt;injection-target&gt;
          &lt;injection-target-class&gt;org.superbiz.mdbdesc.ChatBean&lt;/injection-target-class&gt;
          &lt;injection-target-name&gt;answerQueue&lt;/injection-target-name&gt;
        &lt;/injection-target&gt;
      &lt;/resource-env-ref&gt;

    &lt;/message-driven&gt;

  &lt;/enterprise-beans&gt;
&lt;/ejb-jar&gt;
</code></pre>
<h2>ChatBeanTest</h2>
<pre><code>package org.superbiz.mdb;

import junit.framework.TestCase;

import javax.annotation.Resource;
import javax.ejb.embeddable.EJBContainer;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;

public class ChatBeanTest extends TestCase {

    @Resource
    private ConnectionFactory connectionFactory;

    @Resource(name = &quot;ChatBean&quot;)
    private Queue questionQueue;

    @Resource(name = &quot;AnswerQueue&quot;)
    private Queue answerQueue;

    public void test() throws Exception {

        EJBContainer.createEJBContainer().getContext().bind(&quot;inject&quot;, this);

        final Connection connection = connectionFactory.createConnection();

        connection.start();

        final Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

        final MessageProducer questions = session.createProducer(questionQueue);

        final MessageConsumer answers = session.createConsumer(answerQueue);


        sendText(&quot;Hello World!&quot;, questions, session);

        assertEquals(&quot;Hello, Test Case!&quot;, receiveText(answers));


        sendText(&quot;How are you?&quot;, questions, session);

        assertEquals(&quot;I&#39;m doing well.&quot;, receiveText(answers));


        sendText(&quot;Still spinning?&quot;, questions, session);

        assertEquals(&quot;Once every day, as usual.&quot;, receiveText(answers));
    }

    private void sendText(String text, MessageProducer questions, Session session) throws JMSException {

        questions.send(session.createTextMessage(text));
    }

    private String receiveText(MessageConsumer answers) throws JMSException {

        return ((TextMessage) answers.receive(1000)).getText();
    }
}
</code></pre>
<h1>Running</h1>
<pre><code>-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running org.superbiz.mdb.ChatBeanTest
Apache OpenEJB 4.0.0-beta-1    build: 20111002-04:06
http://tomee.apache.org/
INFO - openejb.home = /Users/dblevins/examples/simple-mdb-with-descriptor
INFO - openejb.base = /Users/dblevins/examples/simple-mdb-with-descriptor
INFO - Using &#39;javax.ejb.embeddable.EJBContainer=true&#39;
INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service)
INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager)
INFO - Found EjbModule in classpath: /Users/dblevins/examples/simple-mdb-with-descriptor/target/classes
INFO - Beginning load: /Users/dblevins/examples/simple-mdb-with-descriptor/target/classes
INFO - Configuring enterprise application: /Users/dblevins/examples/simple-mdb-with-descriptor
WARN - Method &#39;lookup&#39; is not available for &#39;javax.annotation.Resource&#39;. Probably using an older Runtime.
INFO - Configuring Service(id=Default MDB Container, type=Container, provider-id=Default MDB Container)
INFO - Auto-creating a container for bean ChatBean: Container(type=MESSAGE, id=Default MDB Container)
INFO - Configuring Service(id=Default JMS Resource Adapter, type=Resource, provider-id=Default JMS Resource Adapter)
INFO - Configuring Service(id=Default JMS Connection Factory, type=Resource, provider-id=Default JMS Connection Factory)
INFO - Auto-creating a Resource with id &#39;Default JMS Connection Factory&#39; of type &#39;javax.jms.ConnectionFactory for &#39;ChatBean&#39;.
INFO - Auto-linking resource-ref &#39;java:comp/env/org.superbiz.mdbdesc.ChatBean/connectionFactory&#39; in bean ChatBean to Resource(id=Default JMS Connection Factory)
INFO - Configuring Service(id=AnswerQueue, type=Resource, provider-id=Default Queue)
INFO - Auto-creating a Resource with id &#39;AnswerQueue&#39; of type &#39;javax.jms.Queue for &#39;ChatBean&#39;.
INFO - Auto-linking resource-env-ref &#39;java:comp/env/AnswerQueue&#39; in bean ChatBean to Resource(id=AnswerQueue)
INFO - Configuring Service(id=ChatBean, type=Resource, provider-id=Default Queue)
INFO - Auto-creating a Resource with id &#39;ChatBean&#39; of type &#39;javax.jms.Queue for &#39;ChatBean&#39;.
INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container)
INFO - Auto-creating a container for bean org.superbiz.mdb.ChatBeanTest: Container(type=MANAGED, id=Default Managed Container)
INFO - Auto-linking resource-ref &#39;java:comp/env/org.superbiz.mdb.ChatBeanTest/connectionFactory&#39; in bean org.superbiz.mdb.ChatBeanTest to Resource(id=Default JMS Connection Factory)
INFO - Auto-linking resource-env-ref &#39;java:comp/env/AnswerQueue&#39; in bean org.superbiz.mdb.ChatBeanTest to Resource(id=AnswerQueue)
INFO - Auto-linking resource-env-ref &#39;java:comp/env/ChatBean&#39; in bean org.superbiz.mdb.ChatBeanTest to Resource(id=ChatBean)
INFO - Enterprise application &quot;/Users/dblevins/examples/simple-mdb-with-descriptor&quot; loaded.
INFO - Assembling app: /Users/dblevins/examples/simple-mdb-with-descriptor
INFO - Jndi(name=&quot;java:global/EjbModule1842275169/org.superbiz.mdb.ChatBeanTest!org.superbiz.mdb.ChatBeanTest&quot;)
INFO - Jndi(name=&quot;java:global/EjbModule1842275169/org.superbiz.mdb.ChatBeanTest&quot;)
INFO - Created Ejb(deployment-id=org.superbiz.mdb.ChatBeanTest, ejb-name=org.superbiz.mdb.ChatBeanTest, container=Default Managed Container)
INFO - Created Ejb(deployment-id=ChatBean, ejb-name=ChatBean, container=Default MDB Container)
INFO - Started Ejb(deployment-id=org.superbiz.mdb.ChatBeanTest, ejb-name=org.superbiz.mdb.ChatBeanTest, container=Default Managed Container)
INFO - Started Ejb(deployment-id=ChatBean, ejb-name=ChatBean, container=Default MDB Container)
INFO - Deployed Application(path=/Users/dblevins/examples/simple-mdb-with-descriptor)
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.914 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
</code></pre>
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