From 1c0d8a7ab823150bdbece285e71cd6f414621cfc Mon Sep 17 00:00:00 2001 From: antelder Date: Mon, 27 Dec 2010 10:50:45 +0000 Subject: Start branch for beta2 release git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1053042 13f79535-47bb-0310-9956-ffa450edef68 --- .../jms/provider/JMSMessageProcessorUtil.java | 113 +++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 sca-java-2.x/branches/2.0-Beta2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/provider/JMSMessageProcessorUtil.java (limited to 'sca-java-2.x/branches/2.0-Beta2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/provider/JMSMessageProcessorUtil.java') diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/provider/JMSMessageProcessorUtil.java b/sca-java-2.x/branches/2.0-Beta2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/provider/JMSMessageProcessorUtil.java new file mode 100644 index 0000000000..4b96f23d65 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/provider/JMSMessageProcessorUtil.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.provider; + +import java.lang.reflect.Constructor; + +import org.apache.tuscany.sca.binding.jms.JMSBinding; +import org.apache.tuscany.sca.binding.jms.JMSBindingException; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; + +/** + * Utility methods to load JMS message processors. + * + * @version $Rev$ $Date$ + */ +public class JMSMessageProcessorUtil { + + /** + * Used to create instances of the JMSResourceFactory and RequestMessageProcessor and ResponseMessageProcessor from + * string based class name provided in the configuration + * + * @param cl ClassLoader + * @param className the string based class name to load and instantiate + * @return the new object + */ + private static Object instantiate(ClassLoader cl, String className, JMSBinding binding) { + Object instance; + if (cl == null) { + cl = binding.getClass().getClassLoader(); + } + + try { + Class clazz; + + try { + clazz = cl.loadClass(className); + } catch (ClassNotFoundException e) { + clazz = binding.getClass().getClassLoader().loadClass(className); + } + + Constructor constructor = clazz.getDeclaredConstructor(new Class[] {JMSBinding.class}); + instance = constructor.newInstance(binding); + + } catch (Throwable e) { + throw new JMSBindingException("Exception instantiating OperationAndDataBinding class", e); + } + + return instance; + } + +// public static JMSMessageProcessor getRequestMessageProcessor(JMSBinding binding) { +// return (JMSMessageProcessor)instantiate(null, binding.getRequestMessageProcessorName(), binding); +// } +// +// public static JMSMessageProcessor getResponseMessageProcessor(JMSBinding binding) { +// return (JMSMessageProcessor)instantiate(null, binding.getResponseMessageProcessorName(), binding); +// } +// + private static Object instantiate(ClassLoader cl, String className, JMSBinding binding, ExtensionPointRegistry registry) { + Object instance; + if (cl == null) { + cl = binding.getClass().getClassLoader(); + } + + try { + Class clazz; + + try { + clazz = cl.loadClass(className); + } catch (ClassNotFoundException e) { + // MJE 07/12/2010 - for OSGi the default message processor belongs to the same bundle as + // this JMSMessageProcessorUtil itself and so the "correct" classloader to use is the classloader + // for THIS class, and not the binding class (which is a different bundle) + // clazz = binding.getClass().getClassLoader().loadClass(className); + clazz = JMSMessageProcessorUtil.class.getClassLoader().loadClass(className); + } + + Constructor constructor = clazz.getDeclaredConstructor(new Class[] {JMSBinding.class, ExtensionPointRegistry.class}); + instance = constructor.newInstance(binding, registry); + + } catch (Throwable e) { + throw new JMSBindingException("Exception instantiating OperationAndDataBinding class", e); + } + + return instance; + } + + public static JMSMessageProcessor getRequestMessageProcessor(ExtensionPointRegistry registry, JMSBinding binding) { + return (JMSMessageProcessor)instantiate(null, binding.getRequestMessageProcessorName(), binding, registry); + } + + public static JMSMessageProcessor getResponseMessageProcessor(ExtensionPointRegistry registry, JMSBinding binding) { + return (JMSMessageProcessor)instantiate(null, binding.getResponseMessageProcessorName(), binding, registry); + } + +} -- cgit v1.2.3