/* | |
* 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.commons.proxy2.impl; | |
import org.apache.commons.proxy2.Interceptor; | |
import org.apache.commons.proxy2.Invoker; | |
import org.apache.commons.proxy2.ObjectProvider; | |
import org.apache.commons.proxy2.ProxyFactory; | |
/** | |
* Base abstract {@link ProxyFactory} implementation, primarily providing | |
* implementations of the interface methods that are typically convenience | |
* constructs over the other methods. | |
*/ | |
public abstract class AbstractProxyFactory implements ProxyFactory | |
{ | |
/** | |
* Returns true if all <code>proxyClasses</code> are interfaces. | |
* | |
* @param proxyClasses the proxy classes | |
* @return true if all <code>proxyClasses</code> are interfaces | |
*/ | |
public boolean canProxy( Class<?>... proxyClasses ) | |
{ | |
for( Class<?> proxyClass : proxyClasses ) | |
{ | |
if( !proxyClass.isInterface() ) | |
{ | |
return false; | |
} | |
} | |
return true; | |
} | |
/** | |
* Creates a proxy which delegates to the object provided by <code>delegateProvider</code>. The proxy will be | |
* generated using the current thread's "context class loader." | |
* | |
* @param delegateProvider the delegate provider | |
* @param proxyClasses the interfaces that the proxy should implement | |
* @return a proxy which delegates to the object provided by the target object provider | |
*/ | |
public <T> T createDelegatorProxy( ObjectProvider<?> delegateProvider, Class<?>... proxyClasses ) | |
{ | |
return createDelegatorProxy(Thread.currentThread().getContextClassLoader(), delegateProvider, proxyClasses); | |
} | |
/** | |
* Creates a proxy which passes through a {@link Interceptor interceptor} before eventually reaching the | |
* <code>target</code> object. The proxy will be generated using the current thread's "context class loader." | |
* | |
* @param target the target object | |
* @param interceptor the method interceptor | |
* @param proxyClasses the interfaces that the proxy should implement | |
* @return a proxy which passes through a {@link Interceptor interceptor} before eventually reaching the | |
* <code>target</code> object. | |
*/ | |
public <T> T createInterceptorProxy( Object target, Interceptor interceptor, | |
Class<?>... proxyClasses ) | |
{ | |
return createInterceptorProxy(Thread.currentThread().getContextClassLoader(), target, interceptor, | |
proxyClasses); | |
} | |
/** | |
* Creates a proxy which uses the provided {@link Invoker} to handle all method invocations. The proxy will be | |
* generated using the current thread's "context class loader." | |
* | |
* @param invoker the invoker | |
* @param proxyClasses the interfaces that the proxy should implement | |
* @return a proxy which uses the provided {@link Invoker} to handle all method invocations | |
*/ | |
public <T> T createInvokerProxy( Invoker invoker, Class<?>... proxyClasses ) | |
{ | |
return createInvokerProxy(Thread.currentThread().getContextClassLoader(), invoker, | |
proxyClasses); | |
} | |
} |