| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed 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 groovy.util; |
| |
| import java.util.Iterator; |
| |
| import groovy.lang.GroovyObjectSupport; |
| import groovy.lang.MissingMethodException; |
| import org.codehaus.groovy.runtime.InvokerHelper; |
| |
| /** |
| * Dynamic groovy proxy for another object. All method |
| * invocations get forwarded to actual object, unless the proxy overrides it. |
| * See groovy/util/ProxyTest.groovy for usage details. |
| * |
| * @author Troy Heninger |
| * @author Dierk Koenig |
| */ |
| public class Proxy extends GroovyObjectSupport { |
| |
| private Object adaptee = null; |
| |
| /** |
| * This method is for convenience. |
| * It allows to get around the need for defining dump ctors is subclasses. |
| * See unit tests for details. |
| */ |
| public Proxy wrap(Object adaptee){ |
| setAdaptee(adaptee); |
| return this; |
| } |
| |
| public Object getAdaptee() { |
| return adaptee; |
| } |
| |
| public void setAdaptee(Object adaptee) { |
| this.adaptee = adaptee; |
| } |
| |
| public Object invokeMethod(String name, Object args) { |
| try { |
| return super.invokeMethod(name, args); |
| } |
| catch (MissingMethodException e) { |
| return InvokerHelper.getMetaClass(adaptee).invokeMethod(adaptee, name, args); |
| } |
| } |
| |
| public Iterator iterator() { |
| return InvokerHelper.asIterator(adaptee); |
| } |
| |
| } |