| /* |
| * 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 org.codehaus.groovy.runtime; |
| |
| import java.lang.reflect.Method; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| |
| import groovy.lang.Closure; |
| |
| |
| /** |
| * Represents a method on an object using a closure which can be invoked |
| * at any time |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public class MethodClosure extends Closure { |
| |
| private String method; |
| |
| public MethodClosure(Object owner, String method) { |
| super(owner); |
| this.method = method; |
| |
| final Class clazz = owner.getClass()==Class.class?(Class) owner:owner.getClass(); |
| |
| maximumNumberOfParameters = 0; |
| |
| Method[] methods = (Method[]) AccessController.doPrivileged(new PrivilegedAction() { |
| public Object run() { |
| return clazz.getMethods(); |
| } |
| }); |
| for (int j = 0; j < methods.length; j++) { |
| if (method.equals(methods[j].getName()) && methods[j].getParameterTypes().length > maximumNumberOfParameters) { |
| maximumNumberOfParameters = methods[j].getParameterTypes().length; |
| } |
| } |
| methods = (Method[]) AccessController.doPrivileged(new PrivilegedAction() { |
| public Object run() { |
| return clazz.getDeclaredMethods(); |
| } |
| }); |
| for (int j = 0; j < methods.length; j++) { |
| if (method.equals(methods[j].getName()) && methods[j].getParameterTypes().length > maximumNumberOfParameters) { |
| maximumNumberOfParameters = methods[j].getParameterTypes().length; |
| } |
| } |
| |
| } |
| |
| public String getMethod() { |
| return method; |
| } |
| |
| protected Object doCall(Object arguments) { |
| return InvokerHelper.invokeMethod(getDelegate(), method, arguments); |
| } |
| |
| public Object getProperty(String property) { |
| if ("method".equals(property)) { |
| return getMethod(); |
| } else return super.getProperty(property); |
| } |
| } |