| /* |
| * 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.codehaus.groovy.runtime; |
| |
| import groovy.lang.Closure; |
| |
| import java.lang.reflect.Method; |
| import java.util.Map; |
| |
| /** |
| * This class is a general adapter to adapt a map of closures to |
| * any Java interface. |
| */ |
| public class ConvertedMap extends ConversionHandler { |
| |
| private static final long serialVersionUID = 8535543126684786030L; |
| |
| /** |
| * to create a ConvertedMap object. |
| * |
| * @param closures the map of closures |
| */ |
| protected ConvertedMap(Map closures) { |
| super(closures); |
| } |
| |
| @Override |
| public Object invokeCustom(Object proxy, Method method, Object[] args) |
| throws Throwable { |
| Map m = (Map) getDelegate(); |
| Closure cl = (Closure) m.get(method.getName()); |
| if(cl == null && "toString".equals(method.getName())) { |
| return m.toString(); |
| } |
| if (cl == null) { |
| throw new UnsupportedOperationException(); |
| } |
| return cl.call(args); |
| } |
| |
| @Override |
| public String toString() { |
| return DefaultGroovyMethods.toString(getDelegate()); |
| } |
| |
| @Override |
| protected boolean checkMethod(Method method) { |
| return isCoreObjectMethod(method); |
| } |
| |
| /** |
| * Checks whether a method is a core method from java.lang.Object. |
| * Such methods often receive special treatment because they are |
| * deemed fundamental enough to not be tampered with. |
| * call toString() is an exception to allow overriding toString() by a closure specified in the map |
| * |
| * @param method the method to check |
| * @return true if the method is deemed to be a core method |
| */ |
| public static boolean isCoreObjectMethod(Method method) { |
| return ConversionHandler.isCoreObjectMethod(method) && !"toString".equals(method.getName()); |
| } |
| } |
| |