1 files changed, 113 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-jms-runtime-activemq/src/main/java/org/apache/tuscany/sca/binding/jms/runtime/activemq/ActiveMQJMSResourceFactory.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-jms-runtime-activemq/src/main/java/org/apache/tuscany/sca/binding/jms/runtime/activemq/ActiveMQJMSResourceFactory.java
new file mode 100644
index 0000000000..f8c06058a0
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-jms-runtime-activemq/src/main/java/org/apache/tuscany/sca/binding/jms/runtime/activemq/ActiveMQJMSResourceFactory.java
@@ -0,0 +1,113 @@
+/*
+ * 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.binding.jms.runtime.activemq;
+
+import java.util.Properties;
+
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.naming.NamingException;
+
+import org.apache.activemq.jndi.ActiveMQInitialContextFactory;
+import org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactoryImpl;
+import org.apache.tuscany.sca.extensibility.ClassLoaderContext;
+
+public class ActiveMQJMSResourceFactory extends JMSResourceFactoryImpl {
+
+    public ActiveMQJMSResourceFactory(String connectionFactoryName,
+                                      String responseConnectionFactoryName,
+                                      String initialContextFactoryName,
+                                      String jndiURL) {
+        super(connectionFactoryName, responseConnectionFactoryName, initialContextFactoryName, jndiURL);
+    }
+
+    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);
+            
+            try {
+                        // Load the JNDI InitialContext (will load the InitialContextFactory, if present)
+                        context = new InitialContext(props);
+                if( context == null ) {
+                        throw new NamingException();
+                } else if ( context.getEnvironment().get(InitialContext.INITIAL_CONTEXT_FACTORY) == null ) {
+                        throw new NamingException();
+                } // end if
+            } catch (NamingException e ) {
+                context = getInitialContextOsgi( props );
+            } // end try
+                // In the case where the InitialContext fails, check whether performing an OSGi based load succeeds...            
+
+            
+        }
+        return context;
+    } // end method getInitialContext
+    
+    static final String ACTIVEMQ_FACTORY = "org.apache.activemq.jndi.ActiveMQInitialContextFactory";    
+    private Context getInitialContextOsgi( Properties props ) throws NamingException {
+        /**
+         * For OSGi, need to provide access to the InitialContextFactory for the JMS provider that is going to be used.
+         * 
+         * The situation is that the InitialContext constructor instantiates an instance of the InitialContextFactory by
+         * calling "new" using the TCCL - thus there is a need to prepare the TCCL.
+         * 03/12/2010 MJE - for the present, only worry about ActiveMQ - other providers can be added later 
+         * 10/12/2010 MJE - the following code attempts to get the classloader for the ActiveMQ initial context factory
+         *                  it will fail if the ActiveMQ classes are not available in the runtime, but the code will still
+         *                  execute (although under OSGi the new InitialContext() operation will fail to find a suitable
+         *                  InitialContextFactory object...)
+         */
+        
+        String contextFactoryName = (String)props.get(Context.INITIAL_CONTEXT_FACTORY);
+        
+        ClassLoader ActiveMQCl = null;
+        try {
+                if( contextFactoryName == null || ACTIVEMQ_FACTORY.equals(contextFactoryName) ) {
+                        ActiveMQCl = ActiveMQInitialContextFactory.class.getClassLoader();
+                        props.setProperty(Context.INITIAL_CONTEXT_FACTORY, ACTIVEMQ_FACTORY);
+                        if( props.getProperty(Context.PROVIDER_URL) == null ) {
+                                props.setProperty(Context.PROVIDER_URL, "vm://localhost?broker.persistent=false" );
+                        } // end if
+                } // end if 
+        } catch (Exception e) {
+                // Nothing to do in this case - the ActiveMQCl classloader will simply be null
+        } // end try 
+
+        ClassLoader tccl = ClassLoaderContext.setContextClassLoader(JMSResourceFactoryImpl.class.getClassLoader(),
+                        ActiveMQCl,
+                        Thread.currentThread().getContextClassLoader() );
+        try {
+                // Load the JNDI InitialContext (will load the InitialContextFactory, if present)
+                return new InitialContext(props);
+        } finally {
+            // Restore the TCCL if we changed it
+            if( tccl != null ) Thread.currentThread().setContextClassLoader(tccl);
+        } // end try
+
+    } // end method getInitialContextOsgi
+}