/*

  * Copyright 2012 Apache Software Foundation.

  *

  * 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.apache.tiles.request.mustache;

 import java.util.Collections;

 import java.util.Enumeration;

 import java.util.Map;

 import java.util.Set;

 import org.apache.tiles.request.attribute.AttributeExtractor;

 public final class MustacheScopeExtractor  implements AttributeExtractor {

     private final Map<String,Object> scope;

     public MustacheScopeExtractor(Map<String,Object> scope) {

         this.scope = scope;

     }

     @Override

     public void removeValue(String key) {

         scope.remove(key);

     }

     @Override

     public Enumeration<String> getKeys() {

         return (Enumeration<String>) Collections.enumeration((Set<?>)scope.keySet());

     }

     @Override

     public Object getValue(String key) {

         return scope.get(key);

     }

     @Override

     public void setValue(String key, Object value) {

         scope.put(key, value);

     }

 }