/*

  * 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 javax.faces.component;

 import java.io.Serializable;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.Map;

 import java.util.Set;

 class _PassThroughAttributesMap implements Map<String, Object>, Serializable

 {

     private static final long serialVersionUID = -9106932179394257866L;

     private UIComponentBase _component;

     _PassThroughAttributesMap(UIComponentBase component)

     {

         _component = component;

     }

     /**

      * Return the map containing the attributes.

      * <p/>

      * This method is package-scope so that the UIComponentBase class can access it

      * directly when serializing the component.

      */

     Map<String, Object> getUnderlyingMap()

     {

         StateHelper stateHelper = _component.getStateHelper(false);

         Map<String, Object> attributes = null;

         if (stateHelper != null)

         {

             attributes = (Map<String, Object>) stateHelper.get(UIComponentBase.PropertyKeys.passThroughAttributesMap);

         }

         return attributes == null ? Collections.EMPTY_MAP : attributes;

     }

     @Override

     public boolean equals(Object obj)

     {

         return getUnderlyingMap().equals(obj);

     }

     @Override

     public int hashCode()

     {

         return getUnderlyingMap().hashCode();

     }

     public int size()

     {

         return getUnderlyingMap().size();

     }

     public boolean isEmpty()

     {

         return getUnderlyingMap().isEmpty();

     }

     public boolean containsKey(Object key)

     {

         return getUnderlyingMap().containsKey(key);

     }

     public boolean containsValue(Object value)

     {

         return getUnderlyingMap().containsValue(value);

     }

     public Object get(Object key)

     {

         return getUnderlyingMap().get(key);

     }

     public Object put(String key, Object value)

     {

         return _component.getStateHelper().put(

             UIComponentBase.PropertyKeys.passThroughAttributesMap, key, value);

     }

     public Object remove(Object key)

     {

         return _component.getStateHelper().remove(

             UIComponentBase.PropertyKeys.passThroughAttributesMap, key);

     }

     /**

      * Call put(key, value) for each entry in the provided map.

      */

     public void putAll(Map<? extends String, ?> t)

     {

         for (Map.Entry<? extends String, ?> entry : t.entrySet())

         {

             put(entry.getKey(), entry.getValue());

         }

     }

     /**

      * Return a set of all <i>attributes</i>. Properties of the underlying

      * UIComponent are not included, nor value-bindings.

      */

     public Set<Map.Entry<String, Object>> entrySet()

     {

         return getUnderlyingMap().entrySet();

     }

     public Set<String> keySet()

     {

         return getUnderlyingMap().keySet();

     }

     public void clear()

     {

         getUnderlyingMap().clear();

     }

     public Collection<Object> values()

     {

         return getUnderlyingMap().values();

     }

 }