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/*
* 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.util.List;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.UtilityExtensionPoint;
import org.apache.tuscany.sca.runtime.Invocable;
import org.oasisopen.sca.ServiceReference;
/**
* An extensible proxy factory.
*
* @version $Rev$ $Date$
* @tuscany.spi.extension.asclient
*/
public class ExtensibleProxyFactory implements ProxyFactory {
private ProxyFactoryExtensionPoint proxyFactories;
public ExtensibleProxyFactory(ProxyFactoryExtensionPoint proxyFactories) {
this.proxyFactories = proxyFactories;
}
public ExtensibleProxyFactory(ExtensionPointRegistry registry) {
this.proxyFactories = registry.getExtensionPoint(ProxyFactoryExtensionPoint.class);
}
public static ExtensibleProxyFactory getInstance(ExtensionPointRegistry registry) {
UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class);
return utilities.getUtility(ExtensibleProxyFactory.class);
}
/**
* @see org.apache.tuscany.sca.core.invocation.ProxyFactory#cast(java.lang.Object)
*/
@SuppressWarnings("unchecked")
public <B, R extends ServiceReference<B>> R cast(B target) throws IllegalArgumentException {
ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
if (interfaceFactory.isProxyClass(target.getClass())) {
return (R)interfaceFactory.cast(target);
} else if (classFactory != null && classFactory.isProxyClass(target.getClass())) {
return (R)classFactory.cast(target);
} else {
throw new IllegalArgumentException("The target is not a callable proxy");
}
}
/**
* @see org.apache.tuscany.sca.core.invocation.ProxyFactory#createCallbackProxy(java.lang.Class,
* java.util.List)
*/
public <T> T createCallbackProxy(Class<T> interfaze, List<? extends Invocable> wires) throws ProxyCreationException {
ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
if (interfaze.isInterface()) {
return interfaceFactory.createCallbackProxy(interfaze, wires);
} else {
return classFactory.createCallbackProxy(interfaze, wires);
}
}
public <T> T createProxy(ServiceReference<T> callableReference) throws ProxyCreationException {
ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
if (callableReference.getBusinessInterface().isInterface()) {
return interfaceFactory.createProxy(callableReference);
} else {
return classFactory.createProxy(callableReference);
}
}
public <T> T createCallbackProxy(ServiceReference<T> callbackReference) throws ProxyCreationException {
ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
if (callbackReference.getBusinessInterface().isInterface()) {
return interfaceFactory.createCallbackProxy(callbackReference);
} else {
return classFactory.createCallbackProxy(callbackReference);
}
}
/**
* @see org.apache.tuscany.sca.core.invocation.ProxyFactory#createProxy(java.lang.Class,
* org.apache.tuscany.sca.runtime.Invocable)
*/
public <T> T createProxy(Class<T> interfaze, Invocable wire) throws ProxyCreationException {
ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
if (interfaze.isInterface()) {
return interfaceFactory.createProxy(interfaze, wire);
} else {
return classFactory.createProxy(interfaze, wire);
}
}
/**
* @see org.apache.tuscany.sca.core.invocation.ProxyFactory#isProxyClass(java.lang.Class)
*/
public boolean isProxyClass(Class<?> clazz) {
ProxyFactory interfaceFactory = proxyFactories.getInterfaceProxyFactory();
ProxyFactory classFactory = proxyFactories.getClassProxyFactory();
return interfaceFactory.isProxyClass(clazz) || (classFactory != null && classFactory.isProxyClass(clazz));
}
public void removeProxiesForContribution(ClassLoader contributionClassloader){
// do nothing, no cache to clear
}
}
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