1 files changed, 155 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CglibProxyFactory.java b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CglibProxyFactory.java
new file mode 100644
index 0000000000..a597f8b1ee
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CglibProxyFactory.java
@@ -0,0 +1,155 @@
+/*
+ * 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.core.invocation;
+
+import java.lang.reflect.Method;
+import java.util.List;
+
+import net.sf.cglib.proxy.Callback;
+import net.sf.cglib.proxy.Enhancer;
+import net.sf.cglib.proxy.Factory;
+import net.sf.cglib.proxy.MethodInterceptor;
+import net.sf.cglib.proxy.MethodProxy;
+
+import org.apache.tuscany.sca.core.context.ServiceReferenceExt;
+import org.apache.tuscany.sca.core.context.impl.ServiceReferenceImpl;
+import org.apache.tuscany.sca.core.invocation.impl.JDKCallbackInvocationHandler;
+import org.apache.tuscany.sca.core.invocation.impl.JDKInvocationHandler;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+import org.apache.tuscany.sca.runtime.Invocable;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * The implementation of a wire service that uses cglib dynamic proxies
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class CglibProxyFactory implements ProxyFactory {
+    private MessageFactory messageFactory;
+
+    public CglibProxyFactory(MessageFactory messageFactory, InterfaceContractMapper mapper) {
+        this.messageFactory = messageFactory;
+
+    }
+
+    public <T> T createProxy(final Class<T> interfaze, Invocable invocable) throws ProxyCreationException {
+        if (invocable instanceof RuntimeEndpoint) {
+            Enhancer enhancer = new Enhancer();
+            enhancer.setSuperclass(interfaze);
+            enhancer.setCallback(new CglibMethodInterceptor<T>(interfaze, invocable));
+            Object proxy = enhancer.create();
+            return interfaze.cast(proxy);
+        }        
+        ServiceReference<T> serviceReference = new ServiceReferenceImpl(interfaze, invocable, null);
+        return createProxy(serviceReference);
+    }
+
+    /**
+     * create the proxy with cglib. use the same JDKInvocationHandler as
+     * JDKProxyService.
+     */
+    public <T> T createProxy(ServiceReference<T> callableReference) throws ProxyCreationException {
+        Enhancer enhancer = new Enhancer();
+        Class<T> interfaze = callableReference.getBusinessInterface();
+        enhancer.setSuperclass(interfaze);
+        enhancer.setCallback(new CglibMethodInterceptor<T>(callableReference));
+        Object proxy = enhancer.create();
+		((ServiceReferenceImpl)callableReference).setProxy(proxy);
+        return interfaze.cast(proxy);
+    }
+
+    /**
+     * create the callback proxy with cglib. use the same
+     * JDKCallbackInvocationHandler as JDKProxyService.
+     */
+    public <T> T createCallbackProxy(Class<T> interfaze, final List<? extends Invocable> wires) throws ProxyCreationException {
+        ServiceReferenceImpl<T> callbackReference = new ServiceReferenceImpl(interfaze, wires.get(0), null);
+        return callbackReference != null ? createCallbackProxy(callbackReference) : null;
+    }
+
+    /**
+     * create the callback proxy with cglib. use the same
+     * JDKCallbackInvocationHandler as JDKProxyService.
+     */
+    public <T> T createCallbackProxy(ServiceReference<T> callbackReference) throws ProxyCreationException {
+        Enhancer enhancer = new Enhancer();
+        Class<T> interfaze = callbackReference.getBusinessInterface();
+        enhancer.setSuperclass(interfaze);
+        enhancer.setCallback(new CglibMethodInterceptor<T>(callbackReference));
+        Object object = enhancer.create();
+        T proxy = interfaze.cast(object);
+        ((ServiceReferenceExt<T>)callbackReference).setProxy(proxy);
+        return proxy;
+    }
+
+    @SuppressWarnings("unchecked")
+    public <B, R extends ServiceReference<B>> R cast(B target) throws IllegalArgumentException {
+        if (isProxyClass(target.getClass())) {
+            Factory factory = (Factory)target;
+            Callback[] callbacks = factory.getCallbacks();
+            if (callbacks.length != 1 || !(callbacks[0] instanceof CglibMethodInterceptor)) {
+                throw new IllegalArgumentException("The object is not a known proxy.");
+            }
+            CglibMethodInterceptor interceptor = (CglibMethodInterceptor)callbacks[0];
+            return (R)interceptor.invocationHandler.getCallableReference();
+        } else {
+            throw new IllegalArgumentException("The object is not a known proxy.");
+        }
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.core.invocation.ProxyFactory#isProxyClass(java.lang.Class)
+     */
+    public boolean isProxyClass(Class<?> clazz) {
+        return Factory.class.isAssignableFrom(clazz);
+    }
+
+    private class CglibMethodInterceptor<T> implements MethodInterceptor {
+        private JDKInvocationHandler invocationHandler;
+
+        public CglibMethodInterceptor(ServiceReference<T> callableReference) {
+            invocationHandler = new JDKInvocationHandler(messageFactory, callableReference);
+        }
+
+        public CglibMethodInterceptor(Class<?> interfaze, Invocable invocable) {
+            invocationHandler = new JDKInvocationHandler(messageFactory, interfaze, invocable);
+        }
+        
+        public CglibMethodInterceptor(ServiceReferenceImpl<T> callbackReference) {
+            invocationHandler = new JDKCallbackInvocationHandler(messageFactory, callbackReference);
+        }
+
+        /**
+         * @see net.sf.cglib.proxy.MethodInterceptor#intercept(java.lang.Object, java.lang.reflect.Method, java.lang.Object[], net.sf.cglib.proxy.MethodProxy)
+         */
+        public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
+            Object result = invocationHandler.invoke(proxy, method, args);
+            return result;
+        }
+
+    }
+
+    public void removeProxiesForContribution(ClassLoader contributionClassloader){
+       // do nothing, no cache to clear 
+    }
+}