Examples of org.springframework.jms.connection.SingleConnectionFactory

Package org.springframework.jms.connection

Examples of org.springframework.jms.connection.SingleConnectionFactory

org.springframework.jms.connection.SingleConnectionFactory
A JMS ConnectionFactory adapter that returns the same Connection from all {@link #createConnection()} calls, and ignores calls to{@link javax.jms.Connection#close()}. According to the JMS Connection model, this is perfectly thread-safe (in contrast to e.g. JDBC).
You can either pass in a specific JMS Connection directly or let this factory lazily create a Connection via a given target ConnectionFactory. In the latter case, this factory just works with JMS 1.1; use {@link SingleConnectionFactory102} for JMS 1.0.2.
Useful for testing and standalone environments in order to keep using the same Connection for multiple {@link org.springframework.jms.core.JmsTemplate}calls, without having a pooling ConnectionFactory underneath. This may span any number of transactions, even concurrently executing transactions.
Note that Spring's message listener containers support the use of a shared Connection within each listener container instance. Using SingleConnectionFactory in combination only really makes sense for sharing a single JMS Connection across multiple listener containers. @author Juergen Hoeller @author Mark Pollack @since 1.1 @see org.springframework.jms.core.JmsTemplate @see org.springframework.jms.listener.SimpleMessageListenerContainer @see org.springframework.jms.listener.DefaultMessageListenerContainer#setCacheLevel


    @Override
    public Connection createConnection() throws JMSException {
      if (AbstractPollingMessageListenerContainer.this.sharedConnectionEnabled()) {
        Connection sharedCon = AbstractPollingMessageListenerContainer.this.getSharedConnection();
        return new SingleConnectionFactory(sharedCon).createConnection();
      }
      else {
        return AbstractPollingMessageListenerContainer.this.createConnection();
      }
    }

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    verify(connection).close();
  }


  @Test
  public void testSessionCallbackWithinSynchronizedTransaction() throws Exception {
    SingleConnectionFactory scf = new SingleConnectionFactory(connectionFactory);
    JmsTemplate template = createTemplate();
    template.setConnectionFactory(scf);


    TransactionSynchronizationManager.initSynchronization();
    try {
      template.execute(new SessionCallback<Void>() {
        @Override
        public Void doInJms(Session session) throws JMSException {
          session.getTransacted();
          return null;
        }
      });
      template.execute(new SessionCallback<Void>() {
        @Override
        public Void doInJms(Session session) throws JMSException {
          session.getTransacted();
          return null;
        }
      });


      assertSame(session, ConnectionFactoryUtils.getTransactionalSession(scf, null, false));
      assertSame(session, ConnectionFactoryUtils.getTransactionalSession(scf, scf.createConnection(), false));


      TransactionAwareConnectionFactoryProxy tacf = new TransactionAwareConnectionFactoryProxy(scf);
      Connection tac = tacf.createConnection();
      Session tas = tac.createSession(false, Session.AUTO_ACKNOWLEDGE);
      tas.getTransacted();
      tas.close();
      tac.close();


      List<TransactionSynchronization> synchs = TransactionSynchronizationManager.getSynchronizations();
      assertEquals(1, synchs.size());
      TransactionSynchronization synch = synchs.get(0);
      synch.beforeCommit(false);
      synch.beforeCompletion();
      synch.afterCommit();
      synch.afterCompletion(TransactionSynchronization.STATUS_UNKNOWN);
    }
    finally {
      TransactionSynchronizationManager.clearSynchronization();
      scf.destroy();
    }
    assertTrue(TransactionSynchronizationManager.getResourceMap().isEmpty());


    verify(connection).start();
    if (useTransactedTemplate()) {

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    }


    public Connection createConnection() throws JMSException {
      if (AbstractPollingMessageListenerContainer.this.sharedConnectionEnabled()) {
        Connection sharedCon = AbstractPollingMessageListenerContainer.this.getSharedConnection();
        return new SingleConnectionFactory(sharedCon).createConnection();
      }
      else {
        return AbstractPollingMessageListenerContainer.this.createConnection();
      }
    }

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        return template;
    }


    private synchronized ConnectionFactory retrieveJmsConnectionFactory(String host) {
        if (!connections.containsKey(host)) {
            connections.put(host, new SingleConnectionFactory(new ActiveMQConnectionFactory(host)));
        }
        return connections.get(host);
    }

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            brokerService1.start();
            brokerService2.start();


            final ExecutorService pool = Executors.newSingleThreadExecutor();
            final ActiveMQConnectionFactory connectionFactory1 = new ActiveMQConnectionFactory("vm://one");
            final SingleConnectionFactory singleConnectionFactory1 = new SingleConnectionFactory(connectionFactory1);
            singleConnectionFactory1.setReconnectOnException(true);
            final DefaultMessageListenerContainer container1 = new DefaultMessageListenerContainer();
            container1.setConnectionFactory(singleConnectionFactory1);
            container1.setMaxConcurrentConsumers(1);
            container1.setDestination(new ActiveMQQueue("testingqueue"));
            container1.setMessageListener(new MessageListener() {


                @Override
                public void onMessage(final Message message) {
                    broker1Count.incrementAndGet();
                }
            });
            container1.afterPropertiesSet();
            container1.start();
            consumer1Started.countDown();
            pool.submit(new Callable<Object>() {


                @Override
                public Object call() throws Exception {
                    try {
                        final ActiveMQConnectionFactory connectionFactory2 = new ActiveMQConnectionFactory(
                                "vm://two");
                        final SingleConnectionFactory singleConnectionFactory2 = new SingleConnectionFactory(
                                connectionFactory2);
                        singleConnectionFactory2.setReconnectOnException(true);
                        final DefaultMessageListenerContainer container2 = new DefaultMessageListenerContainer();
                        container2
                                .setConnectionFactory(singleConnectionFactory2);
                        container2.setMaxConcurrentConsumers(1);
                        container2.setDestination(new ActiveMQQueue(

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        final String xmlConfig = getClass().getPackage().getName().replace('.','/') + "/loadbalancetest.xml";
        System.setProperty("lbt.networkBridgePrefetch", String.valueOf(networkBridgePrefetch));
        System.setProperty("lbt.brokerName", "one");
        final ActiveMQConnectionFactory connectionFactory1 = new ActiveMQConnectionFactory(
                "vm://one?brokerConfig=xbean:" + xmlConfig);
        final SingleConnectionFactory singleConnectionFactory1 = new SingleConnectionFactory(
                connectionFactory1);
        singleConnectionFactory1.setReconnectOnException(true);
        final DefaultMessageListenerContainer container1 = new DefaultMessageListenerContainer();
        container1.setConnectionFactory(singleConnectionFactory1);
        container1.setMaxConcurrentConsumers(1);
        container1.setDestination(new ActiveMQQueue(TESTING_QUEUE));
        container1.setMessageListener(new MessageListener() {


            @Override
            public void onMessage(final Message message) {
                broker1Count.incrementAndGet();
            }
        });
        container1.afterPropertiesSet();
        container1.start();
        pool.submit(new Callable<Object>() {


            @Override
            public Object call() throws Exception {
                System.setProperty("lbt.brokerName", "two");
                final ActiveMQConnectionFactory connectionFactory2 = new ActiveMQConnectionFactory(
                        "vm://two?brokerConfig=xbean:" + xmlConfig);
                final SingleConnectionFactory singleConnectionFactory2 = new SingleConnectionFactory(
                        connectionFactory2);
                singleConnectionFactory2.setReconnectOnException(true);
                final DefaultMessageListenerContainer container2 = new DefaultMessageListenerContainer();
                container2.setConnectionFactory(singleConnectionFactory2);
                container2.setMaxConcurrentConsumers(1);
                container2.setDestination(new ActiveMQQueue(TESTING_QUEUE));
                container2.setMessageListener(new MessageListener() {

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        if (wrappedConnectionFactory == null) {
            if (connectionFactory == null) {
                connectionFactory = JMSFactory.getConnectionFactoryFromJndi(this);
            }
            if (wrapInSingleConnectionFactory && !(connectionFactory instanceof SingleConnectionFactory)) {
                SingleConnectionFactory scf;
                if (useJms11) {
                    if (connectionFactory instanceof XAConnectionFactory) {
                        scf = new XASingleConnectionFactory(connectionFactory);
                    } else {
                        scf = new SingleConnectionFactory(connectionFactory);
                    }
                    autoWrappedConnectionFactory = true;
                } else {
                    scf = new SingleConnectionFactory102(connectionFactory, pubSubDomain);
                }
                if (getDurableSubscriptionClientId() != null) {
                    scf.setClientId(getDurableSubscriptionClientId());
                }
                scf.setReconnectOnException(isReconnectOnException());
                wrappedConnectionFactory = scf;
            } else {
                wrappedConnectionFactory = connectionFactory;
            }
        }

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        if (answer.getBeanName() == null) {
            answer.setBeanName("Camel");
        }
        answer.setBrokerURL(getBrokerURL());
        if (isUseSingleConnection()) {
            return new SingleConnectionFactory(answer);
        }
        else if (isUsePooledConnection()) {
            return createPooledConnectionFactory(answer);
        }
        else {

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        if (wrappedConnectionFactory == null) {
            if (connectionFactory == null) {
                connectionFactory = JMSFactory.getConnectionFactoryFromJndi(this);
            }
            if (wrapInSingleConnectionFactory && !(connectionFactory instanceof SingleConnectionFactory)) {
                SingleConnectionFactory scf;
                if (useJms11) {
                    scf = new SingleConnectionFactory(connectionFactory);
                } else {
                    scf = new SingleConnectionFactory102(connectionFactory, pubSubDomain);
                }
                if (getDurableSubscriptionClientId() != null) {
                    scf.setClientId(getDurableSubscriptionClientId());
                }
                scf.setReconnectOnException(isReconnectOnException());
                wrappedConnectionFactory = scf;
            } else {
                wrappedConnectionFactory = connectionFactory;
            }
        }

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        if (answer.getBeanName() == null) {
            answer.setBeanName("Camel");
        }
        answer.setBrokerURL(getBrokerURL());
        if (isUseSingleConnection()) {
            SingleConnectionFactory scf = new SingleConnectionFactory(answer);
            if (activeMQComponent != null) {
                activeMQComponent.addSingleConnectionFactory(scf);
            }
            return scf;
        }

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