001 /**
002 *
003 * Copyright 2006 The Apache Software Foundation
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018 package org.apache.geronimo.axis.client;
019
020 import java.lang.reflect.InvocationTargetException;
021 import java.util.Iterator;
022 import java.util.Map;
023
024 import javax.naming.NamingException;
025
026 import net.sf.cglib.proxy.Callback;
027 import net.sf.cglib.proxy.Enhancer;
028 import net.sf.cglib.proxy.MethodInterceptor;
029 import net.sf.cglib.proxy.NoOp;
030 import net.sf.cglib.reflect.FastClass;
031 import net.sf.cglib.reflect.FastConstructor;
032 import org.apache.axis.client.Service;
033 import org.apache.geronimo.naming.reference.ClassLoaderAwareReference;
034 import org.apache.geronimo.naming.reference.SimpleReference;
035
036 /**
037 * @version $Rev: 430508 $ $Date: 2006-08-10 12:56:47 -0700 (Thu, 10 Aug 2006) $
038 */
039 public class AxisServiceReference extends SimpleReference implements ClassLoaderAwareReference {
040 private static final Class[] SERVICE_CONSTRUCTOR_TYPES = new Class[]{Map.class, Map.class};
041
042 private String serviceInterfaceClassName;
043 private Map seiPortNameToFactoryMap;
044 private Map seiClassNameToFactoryMap;
045 private ClassLoader classLoader;
046
047 public AxisServiceReference(String serviceInterfaceClassName, Map seiPortNameToFactoryMap, Map seiClassNameToFactoryMap) {
048 this.serviceInterfaceClassName = serviceInterfaceClassName;
049 this.seiPortNameToFactoryMap = seiPortNameToFactoryMap;
050 this.seiClassNameToFactoryMap = seiClassNameToFactoryMap;
051 }
052
053 public void setClassLoader(ClassLoader classLoader) {
054 this.classLoader = classLoader;
055 }
056
057 public Object getContent() throws NamingException {
058 Class serviceInterface;
059 try {
060 serviceInterface = classLoader.loadClass(serviceInterfaceClassName);
061 } catch (ClassNotFoundException e) {
062 throw new NamingException("Could not load service interface class " + serviceInterfaceClassName);
063 }
064 Object serviceInstance = createServiceInterfaceProxy(serviceInterface, seiPortNameToFactoryMap, seiClassNameToFactoryMap, classLoader);
065 for (Iterator iterator = seiPortNameToFactoryMap.values().iterator(); iterator.hasNext();) {
066 SEIFactoryImpl seiFactory = (SEIFactoryImpl) iterator.next();
067 try {
068 seiFactory.initialize(serviceInstance, classLoader);
069 } catch (ClassNotFoundException e) {
070 throw new NamingException("Could not load service interface class; " + e.getMessage());
071 }
072 }
073
074 return serviceInstance;
075 }
076
077 private Object createServiceInterfaceProxy(Class serviceInterface, Map seiPortNameToFactoryMap, Map seiClassNameToFactoryMap, ClassLoader classLoader) throws NamingException {
078
079 Callback callback = new ServiceMethodInterceptor(seiPortNameToFactoryMap);
080 Callback[] methodInterceptors = new Callback[]{SerializableNoOp.INSTANCE, callback};
081
082 Enhancer enhancer = new Enhancer();
083 enhancer.setClassLoader(classLoader);
084 enhancer.setSuperclass(ServiceImpl.class);
085 enhancer.setInterfaces(new Class[]{serviceInterface});
086 enhancer.setCallbackFilter(new NoOverrideCallbackFilter(Service.class));
087 enhancer.setCallbackTypes(new Class[]{NoOp.class, MethodInterceptor.class});
088 enhancer.setUseFactory(false);
089 enhancer.setUseCache(false);
090 Class serviceClass = enhancer.createClass();
091
092 Enhancer.registerCallbacks(serviceClass, methodInterceptors);
093 FastConstructor constructor = FastClass.create(serviceClass).getConstructor(SERVICE_CONSTRUCTOR_TYPES);
094 try {
095 return constructor.newInstance(new Object[]{seiPortNameToFactoryMap, seiClassNameToFactoryMap});
096 } catch (InvocationTargetException e) {
097 throw (NamingException)new NamingException("Could not construct service instance").initCause(e.getTargetException());
098 }
099 }
100
101 }