117 lines
4.6 KiB
HTML
117 lines
4.6 KiB
HTML
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<html>
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<head>
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<title>ActiveMQ Embedded Example</title>
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<link rel="stylesheet" type="text/css" href="../../common/common.css" />
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<link rel="stylesheet" type="text/css" href="../../common/prettify.css" />
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<script type="text/javascript" src="../../common/prettify.js"></script>
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</head>
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<body onload="prettyPrint()">
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<h1>Embedded Example</h1>
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<p>This example shows how to setup and run ActiveMQ embedded.</p>
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<p>ActiveMQ was designed to use POJOs (Plain Old Java Objects), what makes embedding ActiveMQ as simple as instantiating a few objects.</p>
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<p>In this example, we are using two jars:</p>
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<ul>
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<li>activemq-server.jar</li>
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<li>netty.jar</li>
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</ul>
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<p>ActiveMQ Embedded could be used from very simple use cases with only InVM support to very complex cases with clustering, persistence and fail over.</p>
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<h2>Example step-by-step</h2>
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<p><i>To run the example, simply type <code>mvn verify -Pexample</code> from this directory</i></p>
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<p>In this we don't use any configuration files. (Everything is embedded). We simply instantiate ConfigurationImpl, ActiveMQServer, start it and operate on JMS regularly</p>
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<ol>
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<li>Create the Configuration, and set the properties accordingly</li>
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<pre class="prettyprint">
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Configuration configuration = new ConfigurationImpl();
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configuration.setEnablePersistence(false);
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configuration.setSecurityEnabled(false);
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configuration.getAcceptorConfigurations().add(new TransportConfiguration(InVMAcceptorFactory.class.getName()));
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</pre>
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<li>Create and start the server</li>
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<pre class="prettyprint">
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ActiveMQServer server = ActiveMQ.newActiveMQServer(configuration);
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server.start();
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</pre>
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<li>As we are not using a JNDI environment we instantiate the objects directly</li>
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<pre class="prettyprint">
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ServerLocator serverLocator = ActiveMQClient.createServerLocatorWithoutHA(new TransportConfiguration(InVMConnectorFactory.class.getName()));
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ClientSessionFactory sf = serverLocator.createSessionFactory();
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</pre>
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<li>Create a Core Queue</li>
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<pre class="prettyprint">
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ClientSession coreSession = sf.createSession(false, false, false);
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final String queueName = "queue.exampleQueue";
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coreSession.createQueue(queueName, queueName, true);
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coreSession.close();
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</pre>
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<li>Create the session and producer</li>
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<pre class="prettyprint">
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session = sf.createSession();
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ClientProducer producer = session.createProducer(queueName);
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</pre>
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<li>Create and send a Message</li>
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<pre class="prettyprint">
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ClientMessage message = session.createMessage(false);
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message.putStringProperty(propName, "Hello sent at " + new Date());
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System.out.println("Sending the message.");
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producer.send(message);
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</pre>
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<li>Create the message consumer and start the connection</li>
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<pre class="prettyprint">
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ClientConsumer messageConsumer = session.createConsumer(queueName);
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session.start();
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</pre>
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<li>Receive the message</li>
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<pre class="prettyprint">
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ClientMessage messageReceived = messageConsumer.receive(1000);
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System.out.println("Received TextMessage:" + messageReceived.getProperty(propName));
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</pre>
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<li>Be sure to close our resources!</li>
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<pre class="prettyprint">
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if (sf != null)
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{
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sf.close();
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}
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</pre>
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<li>Stop the server</li>
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<pre class="prettyprint">
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server.stop();
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</pre>
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</ol>
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</body>
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</html>
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