From 1206dc69a267f18b68cb086e06dcc5f3f8ce9987 Mon Sep 17 00:00:00 2001 From: antelder Date: Tue, 27 Jan 2009 15:31:53 +0000 Subject: Start to add some JMS host default implementations git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@738112 13f79535-47bb-0310-9956-ffa450edef68 --- .../tuscany/sca/host/jms/asf/ASFListener.java | 233 +++++++++++++++++++++ .../sca/host/jms/asf/JMSResourceFactoryImpl.java | 223 ++++++++++++++++++++ 2 files changed, 456 insertions(+) create mode 100644 branches/sca-java-1.x/modules/host-jms-asf/src/main/java/org/apache/tuscany/sca/host/jms/asf/ASFListener.java create mode 100644 branches/sca-java-1.x/modules/host-jms-asf/src/main/java/org/apache/tuscany/sca/host/jms/asf/JMSResourceFactoryImpl.java (limited to 'branches/sca-java-1.x/modules/host-jms-asf/src') diff --git a/branches/sca-java-1.x/modules/host-jms-asf/src/main/java/org/apache/tuscany/sca/host/jms/asf/ASFListener.java b/branches/sca-java-1.x/modules/host-jms-asf/src/main/java/org/apache/tuscany/sca/host/jms/asf/ASFListener.java new file mode 100644 index 0000000000..ad48468a95 --- /dev/null +++ b/branches/sca-java-1.x/modules/host-jms-asf/src/main/java/org/apache/tuscany/sca/host/jms/asf/ASFListener.java @@ -0,0 +1,233 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.host.jms.asf; + +import java.util.logging.Level; +import java.util.logging.Logger; + +import javax.jms.Destination; +import javax.jms.JMSException; +import javax.jms.Message; +import javax.jms.MessageConsumer; +import javax.jms.MessageListener; +import javax.jms.Queue; +import javax.jms.Session; +import javax.jms.Topic; +import javax.naming.NamingException; + +import org.apache.tuscany.sca.binding.jms.impl.JMSBinding; +import org.apache.tuscany.sca.binding.jms.impl.JMSBindingConstants; +import org.apache.tuscany.sca.binding.jms.impl.JMSBindingException; +import org.apache.tuscany.sca.host.jms.JMSServiceListener; +import org.apache.tuscany.sca.work.WorkScheduler; + +/** + * Implementation of the JMS service binding provider. + * + * @version $Rev: 721811 $ $Date: 2008-11-30 13:46:51 +0000 (Sun, 30 Nov 2008) $ + */ +public class ASFListener implements JMSServiceListener { + private static final Logger logger = Logger.getLogger(ASFListener.class.getName()); + + private MessageListener listener; + private String serviceName; + private boolean isCallbackService; + private JMSBinding jmsBinding; + private WorkScheduler workScheduler; + + private JMSResourceFactoryImpl jmsResourceFactory; + private MessageConsumer consumer; + private boolean running; + + private Destination destination; + + public ASFListener(MessageListener listener, String serviceName, boolean isCallbackService, JMSBinding jmsBinding, WorkScheduler workScheduler) { + this.listener = listener; + this.serviceName = serviceName; + this.isCallbackService = isCallbackService; + this.jmsBinding = jmsBinding; + this.workScheduler = workScheduler; + this.jmsResourceFactory = new JMSResourceFactoryImpl(jmsBinding.getConnectionFactoryName(), jmsBinding.getInitialContextFactoryName(), jmsBinding.getJndiURL()); + } + + public void start() { + this.running = true; + + try { + registerListerner(); + } catch (Exception e) { + throw new JMSBindingException("Error starting JMSServiceBinding", e); + } + } + + public void stop() { + this.running = false; + try { + consumer.close(); + jmsResourceFactory.closeConnection(); + } catch (Exception e) { + // if using an embedded broker then when shutting down Tuscany the broker may get closed + // before this stop method is called. I can't see how to detect that so for now just + // ignore the exception if the message is that the transport is already disposed + if (!"Transport disposed.".equals(e.getMessage())) { + throw new JMSBindingException("Error stopping JMSServiceBinding", e); + } + } + } + + private void registerListerner() throws NamingException, JMSException { + + Session session = jmsResourceFactory.createSession(); + destination = lookupDestinationQueue(); + if (destination == null) { + destination = session.createTemporaryQueue(); + } + + if (jmsBinding.getJMSSelector() != null) { + consumer = session.createConsumer(destination, jmsBinding.getJMSSelector()); + } else { + consumer = session.createConsumer(destination); + } + + try { + + consumer.setMessageListener(listener); + jmsResourceFactory.startConnection(); + + } catch (javax.jms.IllegalStateException e) { + + // setMessageListener not allowed in JEE container so use Tuscany threads + + jmsResourceFactory.startConnection(); + workScheduler.scheduleWork(new Runnable() { + public void run() { + try { + while (running) { + final Message msg = consumer.receive(); + workScheduler.scheduleWork(new Runnable() { + public void run() { + try { + listener.onMessage(msg); + } catch (Exception e) { + e.printStackTrace(); + } + } + }); + } + } catch (Exception e) { + e.printStackTrace(); + } + } + }); + } + logger.log(Level.INFO, "JMS " + (isCallbackService ? "callback service" : "service") + + " '" + + serviceName + + "' listening on destination " + + ((destination instanceof Queue) ? ((Queue)destination).getQueueName() : ((Topic)destination).getTopicName())); + } + + /** + * Looks up the Destination Queue for the JMS Binding. + *

+ * What happens in the look up will depend on the create mode specified for the JMS Binding: + *

+ * See the SCA JMS Binding specification for more information. + *

+ * + * @return The Destination queue. + * @throws NamingException Failed to lookup JMS queue + * @throws JMSBindingException Failed to lookup JMS Queue. Probable cause is that the JMS queue's current existence/non-existence is not + * compatible with the create mode specified on the binding + */ + private Destination lookupDestinationQueue() throws NamingException, JMSBindingException { + + if (isCallbackService && JMSBindingConstants.DEFAULT_DESTINATION_NAME.equals(jmsBinding.getDestinationName())) { + // if its a callback service returning null indicates to use a temporary queue + return null; + } + + Destination destination = jmsResourceFactory.lookupDestination(jmsBinding.getDestinationName()); + + String qCreateMode = jmsBinding.getDestinationCreate(); + if (qCreateMode.equals(JMSBindingConstants.CREATE_ALWAYS)) { + // In this mode, the queue must not already exist as we are creating it + if (destination != null) { + throw new JMSBindingException("JMS Destination " + jmsBinding.getDestinationName() + + " already exists but has create mode of \"" + + qCreateMode + + "\" while registering service " + + serviceName + + " listener"); + } + + // Create the queue + destination = jmsResourceFactory.createDestination(jmsBinding.getDestinationName()); + + } else if (qCreateMode.equals(JMSBindingConstants.CREATE_IF_NOT_EXIST)) { + // In this mode, the queue may nor may not exist. It will be created if it does not exist + if (destination == null) { + destination = jmsResourceFactory.createDestination(jmsBinding.getDestinationName()); + } + + } else if (qCreateMode.equals(JMSBindingConstants.CREATE_NEVER)) { + // In this mode, the queue must have already been created. + if (destination == null) { + throw new JMSBindingException("JMS Destination " + jmsBinding.getDestinationName() + + " not found but create mode of \"" + + qCreateMode + + "\" while registering service " + + serviceName + + " listener"); + } + } + + // Make sure we ended up with a queue + if (destination == null) { + throw new JMSBindingException("JMS Destination " + jmsBinding.getDestinationName() + + " not found with create mode of \"" + + qCreateMode + + "\" while registering service " + + serviceName + + " listener"); + } + + return destination; + } + + public String getDestinationName() { + try { + if (destination instanceof Queue) { + return ((Queue)destination).getQueueName(); + } else if (destination instanceof Topic) { + return ((Topic)destination).getTopicName(); + } else { + return null; + } + } catch (JMSException e) { + throw new JMSBindingException(e); + } + } + +} diff --git a/branches/sca-java-1.x/modules/host-jms-asf/src/main/java/org/apache/tuscany/sca/host/jms/asf/JMSResourceFactoryImpl.java b/branches/sca-java-1.x/modules/host-jms-asf/src/main/java/org/apache/tuscany/sca/host/jms/asf/JMSResourceFactoryImpl.java new file mode 100644 index 0000000000..fc327d593d --- /dev/null +++ b/branches/sca-java-1.x/modules/host-jms-asf/src/main/java/org/apache/tuscany/sca/host/jms/asf/JMSResourceFactoryImpl.java @@ -0,0 +1,223 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.host.jms.asf; + +import java.util.Properties; + +import javax.jms.Connection; +import javax.jms.ConnectionFactory; +import javax.jms.Destination; +import javax.jms.JMSException; +import javax.jms.Session; +import javax.naming.Context; +import javax.naming.InitialContext; +import javax.naming.NamingException; + +import org.apache.tuscany.sca.binding.jms.impl.JMSBindingConstants; +import org.apache.tuscany.sca.binding.jms.impl.JMSBindingException; + +/** + * Abstracts away any JMS provide specific feature from the JMS binding + * + * @version $Rev: 705229 $ $Date: 2008-10-16 13:43:47 +0100 (Thu, 16 Oct 2008) $ + */ +public class JMSResourceFactoryImpl { + + protected String initialContextFactoryName; + protected String connectionFactoryName = "ConnectionFactory"; + protected String jndiURL; + + protected Connection connection; + protected Context context; + protected boolean isConnectionStarted; + + public JMSResourceFactoryImpl(String connectionFactoryName, String initialContextFactoryName, String jndiURL) { + if (connectionFactoryName != null && connectionFactoryName.trim().length() > 0) { + this.connectionFactoryName = connectionFactoryName.trim(); + } + if (initialContextFactoryName != null && initialContextFactoryName.trim().length() > 0) { + this.initialContextFactoryName = initialContextFactoryName.trim(); + } + if (jndiURL != null) { + this.jndiURL = jndiURL.trim(); + } + } + + /* + * This is a simple implementation where a connection is created per binding Ideally the resource factory should be + * able to leverage the host environment to provide connection pooling if it can. E.g. if Tuscany is running inside + * an AppServer Then we could leverage the JMS resources it provides + * + * @see org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactory#getConnection() + */ + public Connection getConnection() throws NamingException, JMSException { + if (connection == null) { + createConnection(); + } + return connection; + } + + /* + * (non-Javadoc) + * + * @see org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactory#createSession() + */ + public Session createSession() throws JMSException, NamingException { + return getConnection().createSession(false, Session.AUTO_ACKNOWLEDGE); + } + + /* + * (non-Javadoc) + * + * @see org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactory#startConnection() + */ + public void startConnection() throws JMSException, NamingException { + if (!isConnectionStarted) { + getConnection().start(); + isConnectionStarted = true; + } + } + + /* + * (non-Javadoc) + * + * @see org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactory#closeConnection() + */ + public void closeConnection() throws JMSException { + if (connection != null) { + try { + connection.close(); + } catch (JMSException e) { + // if using an embedded broker then when shutting down Tuscany the broker may get closed + // before this stop method is called. I can't see how to detect that so for now just + // ignore the exception if the message is that the transport is already disposed + if (!e.getMessage().contains("disposed")) { + throw e; + } + } + } + } + + protected void createConnection() throws NamingException, JMSException { + ConnectionFactory connectionFactory = (ConnectionFactory)jndiLookUp(connectionFactoryName); + if (connectionFactory == null) { + throw new JMSBindingException("connection factory not found: " + connectionFactoryName); + } + connection = connectionFactory.createConnection(); + } + + protected synchronized Context getInitialContext() throws NamingException { + if (context == null) { + Properties props = new Properties(); + + if (initialContextFactoryName != null) { + props.setProperty(Context.INITIAL_CONTEXT_FACTORY, initialContextFactoryName); + } + if (jndiURL != null) { + props.setProperty(Context.PROVIDER_URL, jndiURL); + } + + initJREEnvironment(props); + + context = new InitialContext(props); + } + return context; + } + + /** + * If using the WAS JMS Client with a non-IBM JRE then an additional + * environment property needs to be set to initialize the ORB correctly. + * See: http://www-1.ibm.com/support/docview.wss?uid=swg24012804 + */ + protected void initJREEnvironment(Properties props) { + if ("com.ibm.websphere.naming.WsnInitialContextFactory".equals(props.get(Context.INITIAL_CONTEXT_FACTORY))) { + String vendor = System.getProperty("java.vendor"); + if (vendor == null || !vendor.contains("IBM")) { + props.setProperty("com.ibm.CORBA.ORBInit", "com.ibm.ws.sib.client.ORB"); + } + } + } + + /* (non-Javadoc) + * @see org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactory#lookupDestination(java.lang.String) + */ + public Destination lookupDestination(String destName) throws NamingException { + if (JMSBindingConstants.DEFAULT_DESTINATION_NAME.equals(destName)) { + return null; + } + + Destination dest = (Destination)jndiLookUp(destName); + if (dest == null) { + dest = lookupPhysical(destName); + } + return dest; + } + + protected Destination lookupPhysical(String jndiName) { + + // TODO: the SCA JMS spec says a destination name may be a non-jndi plain destination name + +// Session session = null; +// try { +// +// Destination dest; +// session = createSession(); +// dest = session.createQueue(jndiName); +// return dest; +// +// } catch (JMSException e) { +// throw new JMSBindingException(e); +// } catch (NamingException e) { +// throw new JMSBindingException(e); +// } finally { +// if (session != null) { +// try { +// session.close(); +// } catch (JMSException e) { +// throw new JMSBindingException(e); +// } +// } +// } + return null; + } + + /* (non-Javadoc) + * @see org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactory#createDestination(java.lang.String) + */ + public Destination createDestination(String jndiName) throws NamingException { + return lookupDestination("dynamicQueues/" + jndiName); + } + + protected Object jndiLookUp(String name) { + Object o = null; + try { + o = getInitialContext().lookup("java:comp/env/" + name); + } catch (Exception ex) { + // ignore + } + if (o == null) { + try { + o = getInitialContext().lookup(name); + } catch (NamingException ex) { + // ignore + } + } + return o; + } +} -- cgit v1.2.3