From 132aa8a77685ec92bc90c03f987650d275a7b639 Mon Sep 17 00:00:00 2001 From: lresende Date: Mon, 30 Sep 2013 06:59:11 +0000 Subject: 2.0.1 RC1 release tag git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1527464 13f79535-47bb-0310-9956-ffa450edef68 --- .../sca/core/invocation/impl/JDKProxyFactory.java | 248 +++++++++++++++++++++ 1 file changed, 248 insertions(+) create mode 100644 sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKProxyFactory.java (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKProxyFactory.java') diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKProxyFactory.java b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKProxyFactory.java new file mode 100644 index 0000000000..7163357042 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/impl/JDKProxyFactory.java @@ -0,0 +1,248 @@ +/* + * 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.impl; + +import java.lang.reflect.Constructor; +import java.lang.reflect.InvocationHandler; +import java.lang.reflect.Method; +import java.lang.reflect.Proxy; +import java.security.AccessController; +import java.security.PrivilegedAction; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.concurrent.Future; + +import javax.xml.bind.JAXBContext; +import javax.xml.ws.AsyncHandler; +import javax.xml.ws.Response; + +import org.apache.tuscany.sca.common.java.collection.LRUCache; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.LifeCycleListener; +import org.apache.tuscany.sca.core.context.ServiceReferenceExt; +import org.apache.tuscany.sca.core.context.impl.CallbackServiceReferenceImpl; +import org.apache.tuscany.sca.core.context.impl.ServiceReferenceImpl; +import org.apache.tuscany.sca.core.invocation.ProxyCreationException; +import org.apache.tuscany.sca.core.invocation.ProxyFactory; +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; +import org.oasisopen.sca.ServiceRuntimeException; + +/** + * the default implementation of a wire service that uses JDK dynamic proxies + * + * @version $Rev$ $Date$ + */ +public class JDKProxyFactory implements ProxyFactory, LifeCycleListener { + protected ExtensionPointRegistry registry; + protected InterfaceContractMapper contractMapper; + private MessageFactory messageFactory; + + public JDKProxyFactory(ExtensionPointRegistry registry, + MessageFactory messageFactory, + InterfaceContractMapper mapper) { + this.registry = registry; + this.contractMapper = mapper; + this.messageFactory = messageFactory; + } + + /** + * The original createProxy method assumes that the proxy doesn't want to + * share conversation state so sets the conversation object to null + */ + public T createProxy(final Class interfaze, Invocable invocable) throws ProxyCreationException { + if (invocable instanceof RuntimeEndpoint) { + InvocationHandler handler; + // TUSCANY-3659 - Always install a asynch handler regardless of whether ref is sync or async + // needs tidying + // if (isAsync(interfaze)) { + handler = new AsyncJDKInvocationHandler(registry, messageFactory, interfaze, invocable); + // } else { + // handler = new JDKInvocationHandler(messageFactory, interfaze, invocable); + // } + // Allow privileged access to class loader. Requires RuntimePermission in security policy. + ClassLoader cl = AccessController.doPrivileged(new PrivilegedAction() { + public ClassLoader run() { + return interfaze.getClassLoader(); + } + }); + T proxy = interfaze.cast(newProxyInstance(cl, new Class[] {interfaze}, handler)); + return proxy; + } + ServiceReference serviceReference = new ServiceReferenceImpl(interfaze, invocable, null); + return createProxy(serviceReference); + } + + public T createProxy(ServiceReference callableReference) throws ProxyCreationException { + assert callableReference != null; + final Class interfaze = callableReference.getBusinessInterface(); + InvocationHandler handler; + // TUSCANY-3659 - Always install a asynch handler regardless of whether ref is sync or async + // needs tidying + // if (isAsync(interfaze)) { + handler = new AsyncJDKInvocationHandler(registry, messageFactory, callableReference); + // } else { + // handler = new JDKInvocationHandler(messageFactory, callableReference); + // } + // Allow privileged access to class loader. Requires RuntimePermission in security policy. + ClassLoader cl = AccessController.doPrivileged(new PrivilegedAction() { + public ClassLoader run() { + return interfaze.getClassLoader(); + } + }); + T proxy = interfaze.cast(newProxyInstance(cl, new Class[] {interfaze}, handler)); + ((ServiceReferenceExt)callableReference).setProxy(proxy); + return proxy; + } + + private boolean isAsync(Class interfaze) { + for (Method method : interfaze.getMethods()) { + if (method.getName().endsWith("Async")) { + if (method.getReturnType().isAssignableFrom(Future.class)) { + if (method.getParameterTypes().length > 0) { + if (method.getParameterTypes()[method.getParameterTypes().length - 1] + .isAssignableFrom(AsyncHandler.class)) { + return true; + } + } + } + if (method.getReturnType().isAssignableFrom(Response.class)) { + return true; + } + } + } + return false; + } + + public T createCallbackProxy(Class interfaze, List wires) throws ProxyCreationException { + ServiceReferenceImpl callbackReference = null; + try { + callbackReference = new CallbackServiceReferenceImpl(interfaze, wires); + } catch (ServiceRuntimeException e) { + // [rfeng] In case that the call is not from a bidirectional interface, the field should be injected with null + callbackReference = null; + } + return callbackReference != null ? createCallbackProxy(callbackReference) : null; + } + + public T createCallbackProxy(ServiceReference callbackReference) throws ProxyCreationException { + assert callbackReference != null; + final Class interfaze = callbackReference.getBusinessInterface(); + InvocationHandler handler = new JDKCallbackInvocationHandler(messageFactory, callbackReference); + ClassLoader cl = AccessController.doPrivileged(new PrivilegedAction() { + public ClassLoader run() { + return interfaze.getClassLoader(); + } + }); + T proxy = interfaze.cast(newProxyInstance(cl, new Class[] {interfaze}, handler)); + ((ServiceReferenceExt)callbackReference).setProxy(proxy); + return proxy; + } + + public > R cast(B target) throws IllegalArgumentException { + InvocationHandler handler = Proxy.getInvocationHandler(target); + if (handler instanceof JDKInvocationHandler) { + return (R)((JDKInvocationHandler)handler).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 Proxy.isProxyClass(clazz); + } + + // This is a cache containing the proxy class constructor for each business interface. + // This improves performance compared to calling Proxy.newProxyInstance() + // every time that a proxy is needed. + private final LRUCache, Constructor> cache = new LRUCache, Constructor>(512); + + public Object newProxyInstance(ClassLoader classloader, Class interfaces[], InvocationHandler invocationhandler) + throws IllegalArgumentException { + if (interfaces.length > 1) { + // We only cache the proxy constructors with one single interface which the case in SCA where + // one reference can have one interface + return Proxy.newProxyInstance(classloader, interfaces, invocationhandler); + } + try { + if (invocationhandler == null) + throw new NullPointerException("InvocationHandler is null"); + // Lookup cached constructor. aclass[0] is the reference's business interface. + Constructor proxyCTOR; + synchronized (cache) { + proxyCTOR = cache.get(interfaces[0]); + } + if (proxyCTOR == null) { + Class proxyClass = Proxy.getProxyClass(classloader, interfaces); + proxyCTOR = proxyClass.getConstructor(InvocationHandler.class); + synchronized (cache) { + cache.put(interfaces[0], proxyCTOR); + } + } + return proxyCTOR.newInstance(invocationhandler); + } catch (Throwable e) { + throw new IllegalArgumentException(e); + } + } + + public void start() { + } + + public void stop() { + cache.clear(); + } + + public void removeProxiesForContribution(ClassLoader contributionClassloader){ + try { + synchronized(cache) { + Set> objSet = cache.keySet(); + List> toRemove = new ArrayList>(); + Iterator> i = objSet.iterator(); + loop: + while(i.hasNext()) { + Class cls = i.next(); + ClassLoader cl = cls.getClassLoader(); + while (cl != null){ + if (cl == contributionClassloader){ + toRemove.add(cls); + break loop; + } + // take account of generated classes + cl = cl.getParent(); + } + } + for (Class cls : toRemove){ + cache.remove(cls); + } + } + } catch(Exception e) { + throw new ServiceRuntimeException(e); + } + } +} -- cgit v1.2.3