Java Connection.start方法代码示例

import javax.jms.Connection; //导入方法依赖的package包/类
private void putTopic(List<String> events) throws Exception {
  ConnectionFactory factory = new ActiveMQConnectionFactory(USERNAME,
      PASSWORD, BROKER_BIND_URL);
  Connection connection = factory.createConnection();
  connection.start();

  Session session = connection.createSession(true,
      Session.AUTO_ACKNOWLEDGE);
  Destination destination = session.createTopic(DESTINATION_NAME);
  MessageProducer producer = session.createProducer(destination);

  for (String event : events) {
    TextMessage message = session.createTextMessage();
    message.setText(event);
    producer.send(message);
  }
  session.commit();
  session.close();
  connection.close();
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
@Test
public void testFailedCreateConsumerConnectionStillWorks() throws JMSException {
    Connection connection = pooledConnFact.createConnection("guest", "password");
    connection.start();

    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    Queue queue = session.createQueue(name.getMethodName());

    try {
        session.createConsumer(queue);
        fail("Should fail to create consumer");
    } catch (JMSSecurityException ex) {
        LOG.info("Caught expected security error");
    }

    queue = session.createQueue("GUESTS." + name.getMethodName());

    MessageProducer producer = session.createProducer(queue);
    producer.close();

    connection.close();
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
@Test(timeout = 60000)
public void testSetClientIDAfterConnectionStart() throws Exception {
    Connection connection = cf.createConnection();

    // test: try to call setClientID() after start()
    // should result in an exception
    try {
        connection.start();
        connection.setClientID("newID3");
        fail("Calling setClientID() after start() mut raise a JMSException.");
    } catch (IllegalStateException ise) {
        LOG.debug("Correctly received " + ise);
    } finally {
        connection.close();
        cf.stop();
    }

    LOG.debug("Test finished.");
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
@Test(timeout = 60000)
public void testSetClientIDTwiceWithSameID() throws Exception {
    // test: call setClientID("newID") twice
    // this should be tolerated and not result in an exception
    Connection conn = cf.createConnection();
    conn.setClientID("newID");

    try {
        conn.setClientID("newID");
        conn.start();
        conn.close();
    } catch (IllegalStateException ise) {
        LOG.error("Repeated calls to newID2.setClientID(\"newID\") caused " + ise.getMessage());
        fail("Repeated calls to newID2.setClientID(\"newID\") caused " + ise.getMessage());
    } finally {
        cf.stop();
    }

    LOG.debug("Test finished.");
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
public void sendMessages(ConnectionFactory connectionFactory) throws Exception {
    for (int i = 0; i < NUM_MESSAGES; i++) {
        Connection connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue(QUEUE);
        MessageProducer producer = session.createProducer(destination);

        String msgTo = "hello";
        TextMessage message = session.createTextMessage(msgTo);
        producer.send(message);
        connection.close();
        LOG.debug("sent " + i + " messages using " + connectionFactory.getClass());
    }
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
@Test
public void testFailedConnectThenSucceeds() throws JMSException {
    Connection connection = pooledConnFact.createConnection("invalid", "credentials");

    try {
        connection.start();
        fail("Should fail to connect");
    } catch (JMSSecurityException ex) {
        LOG.info("Caught expected security error");
    }

    connection = pooledConnFact.createConnection("system", "manager");
    connection.start();

    LOG.info("Successfully create new connection.");

    connection.close();
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
@Test
public void testFailedConnectThenSucceedsWithListener() throws JMSException {
    Connection connection = pooledConnFact.createConnection("invalid", "credentials");
    connection.setExceptionListener(new ExceptionListener() {

        @Override
        public void onException(JMSException exception) {
            LOG.warn("Connection get error: {}", exception.getMessage());
        }
    });

    try {
        connection.start();
        fail("Should fail to connect");
    } catch (JMSSecurityException ex) {
        LOG.info("Caught expected security error");
    }

    connection = pooledConnFact.createConnection("system", "manager");
    connection.start();

    LOG.info("Successfully create new connection.");

    connection.close();
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
@Test(timeout = 60000)
public void testSetClientIDTwiceWithSameID() throws Exception {
    LOG.debug("running testRepeatedSetClientIDCalls()");

    // test: call setClientID("newID") twice
    // this should be tolerated and not result in an exception
    JmsPoolConnectionFactory cf = createPooledConnectionFactory();
    Connection conn = cf.createConnection();
    conn.setClientID("newID");

    try {
        conn.setClientID("newID");
        conn.start();
        conn.close();
    } catch (IllegalStateException ise) {
        LOG.error("Repeated calls to newID2.setClientID(\"newID\") caused " + ise.getMessage());
        fail("Repeated calls to newID2.setClientID(\"newID\") caused " + ise.getMessage());
    } finally {
        cf.stop();
    }

    LOG.debug("Test finished.");
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
@Test(timeout = 60000)
public void testSetClientIDAfterConnectionStart() throws Exception {
    LOG.debug("running testRepeatedSetClientIDCalls()");

    JmsPoolConnectionFactory cf = createPooledConnectionFactory();
    Connection conn = cf.createConnection();

    // test: try to call setClientID() after start()
    // should result in an exception
    try {
        conn.start();
        conn.setClientID("newID3");
        fail("Calling setClientID() after start() mut raise a JMSException.");
    } catch (IllegalStateException ise) {
        LOG.debug("Correctly received " + ise);
    } finally {
        conn.close();
        cf.stop();
    }

    LOG.debug("Test finished.");
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
/**
 * This test simply validates that {@link ConnectionFactory} can be setup by
 * pointing to the location of the client libraries at runtime. It uses
 * ActiveMQ which is not present at the POM but instead pulled from Maven
 * repo using {@link TestUtils#setupActiveMqLibForTesting(boolean)}, which
 * implies that for this test to run the computer must be connected to the
 * Internet. If computer is not connected to the Internet, this test will
 * quietly fail logging a message.
 */
@Test
public void validateFactoryCreationWithActiveMQLibraries() throws Exception {
    try {
        String libPath = TestUtils.setupActiveMqLibForTesting(true);

        TestRunner runner = TestRunners.newTestRunner(mock(Processor.class));
        JMSConnectionFactoryProvider cfProvider = new JMSConnectionFactoryProvider();
        runner.addControllerService("cfProvider", cfProvider);
        runner.setProperty(cfProvider, JMSConnectionFactoryProvider.BROKER_URI,
                "vm://localhost?broker.persistent=false");
        runner.setProperty(cfProvider, JMSConnectionFactoryProvider.CLIENT_LIB_DIR_PATH, libPath);
        runner.setProperty(cfProvider, JMSConnectionFactoryProvider.CONNECTION_FACTORY_IMPL,
                "org.apache.activemq.ActiveMQConnectionFactory");
        runner.enableControllerService(cfProvider);
        runner.assertValid(cfProvider);

        Connection connection = cfProvider.getConnectionFactory().createConnection();
        connection.start();

        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination queue = session.createQueue("myqueue");
        MessageProducer producer = session.createProducer(queue);
        MessageConsumer consumer = session.createConsumer(queue);

        TextMessage message = session.createTextMessage("Hello");
        producer.send(message);
        assertEquals("Hello", ((TextMessage) consumer.receive()).getText());
        connection.stop();
        connection.close();
    } catch (Exception e) {
        logger.error("'validateFactoryCreationWithActiveMQLibraries' failed due to ", e);
    }
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
/**
 * This test simply validates that {@link ConnectionFactory} can be setup by pointing to the location of the client
 * libraries at runtime. It uses ActiveMQ which is not present at the POM but instead pulled from Maven repo using
 * {@link TestUtils#setupActiveMqLibForTesting(boolean)}, which implies that for this test to run the computer must
 * be connected to the Internet. If computer is not connected to the Internet, this test will quietly fail logging a
 * message.
 */
@Test
public void validateFactoryCreationWithActiveMQLibraries() throws Exception {
    try {
        String libPath = TestUtils.setupActiveMqLibForTesting(true);

        TestRunner runner = TestRunners.newTestRunner(mock(Processor.class));
        JNDIConnectionFactoryProvider cfProvider = new JNDIConnectionFactoryProvider();
        runner.addControllerService("cfProvider", cfProvider);
        runner.setProperty(cfProvider, JNDIConnectionFactoryProvider.BROKER_URI,
                "vm://localhost?broker.persistent=false");
        runner.setProperty(cfProvider, JNDIConnectionFactoryProvider.JNDI_CF_LOOKUP, "ConnectionFactory");
        runner.setProperty(cfProvider, JNDIConnectionFactoryProvider.CLIENT_LIB_DIR_PATH, libPath);
        runner.setProperty(cfProvider, JNDIConnectionFactoryProvider.CONNECTION_FACTORY_IMPL,
                "org.apache.activemq.jndi.ActiveMQInitialContextFactory");
        runner.enableControllerService(cfProvider);
        runner.assertValid(cfProvider);

        Connection connection = cfProvider.getConnectionFactory().createConnection();
        connection.start();

        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination queue = session.createQueue("myqueue");
        MessageProducer producer = session.createProducer(queue);
        MessageConsumer consumer = session.createConsumer(queue);

        TextMessage message = session.createTextMessage("Hello");
        producer.send(message);
        assertEquals("Hello", ((TextMessage) consumer.receive()).getText());
        connection.stop();
        connection.close();
    } catch (Exception e) {
        logger.error("'validateFactoryCreationWithActiveMQLibraries' failed due to ", e);
    }
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
public void run() {
    try {

        // Create a ConnectionFactory
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://Toshiba:61616");

        // Create a Connection
        Connection connection = connectionFactory.createConnection();
        connection.start();

        connection.setExceptionListener(this);

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

        // Create the destination (Topic or Queue)
        Destination destination = session.createQueue("HELLOWORLD.TESTQ");

        // Create a MessageConsumer from the Session to the Topic or Queue
        MessageConsumer consumer = session.createConsumer(destination);

        // Wait for a message
        Message message = consumer.receive(1000);

        if (message instanceof TextMessage) {
            TextMessage textMessage = (TextMessage) message;
            String text = textMessage.getText();
            System.out.println("Received: " + text);
        } else {
            System.out.println("Received: " + message);
        }

        consumer.close();
        session.close();
        connection.close();
    } catch (Exception e) {
        System.out.println("Caught: " + e);
        e.printStackTrace();
    }
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
public void createConnectionAndReceiveMessage(String clientId, String ipAddress) throws JMSException {
	Connection connection = connectionFactory.createConnection();
	connection.setClientID(clientId);
	connection.start();
	Session session = connection.createSession(false, AUTO_ACKNOWLEDGE);

	String selector = "s_id = 'Sample'";
	logger.info("selector : '" + selector + "'....");
	TopicSubscriber consumer = session.createDurableSubscriber(topic, "Sub1", selector, true);

	consumer.setMessageListener(topicMessageListener);
}
 

import javax.jms.Connection; //导入方法依赖的package包/类
/**
 *
 * @param uri
 * @param topicName
 * @param clazz
 * @param monitorTime
 * @return
 */
public Map<String, T> getHeartbeats(final URI uri, final String topicName, final Class<T> clazz, final long monitorTime) throws Exception {

	final Map<String, T> ret = new HashMap<String, T>(3);
	Connection topicConnection = null;
	try {
		ConnectionFactory connectionFactory  = (ConnectionFactory)service.createConnectionFactory(uri);
		topicConnection = connectionFactory.createConnection();
		topicConnection.start();

		Session session = topicConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);

		final Topic           topic    = session.createTopic(topicName);
		final MessageConsumer consumer = session.createConsumer(topic);


		MessageListener listener = new MessageListener() {
			@Override
			public void onMessage(Message message) {
				try {
					if (message instanceof TextMessage) {
						TextMessage t = (TextMessage) message;
						final T bean = (T)service.unmarshal(t.getText(), clazz);
						Method nameMethod = bean.getClass().getMethod("getName");
						ret.put((String)nameMethod.invoke(bean), bean);
					}
				} catch (Exception e) {
					logger.error("Updating changed bean from topic", e);
				}
			}
		};
		consumer.setMessageListener(listener);
		Thread.sleep(monitorTime);

		return ret;

	} catch (Exception ne) {
		logger.error("Cannot listen to topic changes because command server is not there", ne);
		return null;
	} finally {
		topicConnection.close();
	}

}
 

import javax.jms.Connection; //导入方法依赖的package包/类
public void createConnectionAndSendMessage(String ipAddress) throws JMSException {

		Connection connection = connectionFactory.createConnection();
		connection.start();

		Session topicSession = connection.createSession(false, AUTO_ACKNOWLEDGE);

		MessageProducer producer = topicSession.createProducer(topic);
		producer.setDeliveryMode(PERSISTENT);

		ObjectMessage message = topicSession.createObjectMessage();

		BUSStop busStop = new BUSStop();
		busStop.setName("Rome");

		message.setStringProperty("s_id", "Sample");
		message.setObject((Serializable) busStop);

		producer.send(message);
		logger.info("message sent successfully");
	}