/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * 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.seasar.teeda.core.util;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.Enumeration;

 import java.util.HashMap;

 import java.util.HashSet;

 import java.util.List;

 import java.util.Map;

 import java.util.MissingResourceException;

 import java.util.ResourceBundle;

 import java.util.Set;

 public class ResourceBundleMap implements Map {

     private final ResourceBundle bundle;

     private List values;

     public ResourceBundleMap(ResourceBundle bundle) {

         this.bundle = bundle;

     }

     public void clear() {

         throw new UnsupportedOperationException();

     }

     public boolean containsKey(Object key) {

         boolean result = false;

         if (key != null) {

             result = (bundle.getObject(key.toString()) != null);

         }

         return result;

     }

     public int hashCode() {

         return bundle.hashCode();

     }

     public boolean isEmpty() {

         boolean result = true;

         Enumeration keys = bundle.getKeys();

         result = !keys.hasMoreElements();

         return result;

     }

     public Collection values() {

         if (values == null) {

             values = new ArrayList();

             Enumeration keys = bundle.getKeys();

             while (keys.hasMoreElements()) {

                 values.add(bundle.getString((String) keys.nextElement()));

             }

         }

         return values;

     }

     public int size() {

         return values().size();

     }

     public boolean containsValue(Object value) {

         return values().contains(value);

     }

     public Set entrySet() {

         HashMap mappings = new HashMap();

         Enumeration keys = bundle.getKeys();

         while (keys.hasMoreElements()) {

             Object key = keys.nextElement();

             Object value = bundle.getObject((String) key);

             mappings.put(key, value);

         }

         return mappings.entrySet();

     }

     public boolean equals(Object obj) {

         if ((obj == null) || !(obj instanceof Map)) {

             return false;

         }

         if (entrySet().equals(((Map) obj).entrySet())) {

             return true;

         }

         return false;

     }

     public Object get(Object key) {

         if (key == null) {

             return null;

         }

         Object result = null;

         try {

             result = bundle.getObject(key.toString());

         } catch (MissingResourceException e) {

             result = "???" + key + "???";

         }

         return result;

     }

     public Set keySet() {

         Set set = new HashSet();

         for (Enumeration enumer = bundle.getKeys(); enumer.hasMoreElements();) {

             set.add(enumer.nextElement());

         }

         return set;

     }

     public Object remove(Object key) {

         throw new UnsupportedOperationException();

     }

     public void putAll(Map t) {

         throw new UnsupportedOperationException();

     }

     public Object put(Object key, Object value) {

         throw new UnsupportedOperationException();

     }

 }