/*
    * 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.Map;
  import java.util.Map.Entry;
  import java.util.Set;
  
  class _ViewAttributeMap implements Map<String, Object>, Serializable
  {
      private static final long serialVersionUID = -9106832109394257866L;
  
      private static final String RESET_SAVE_STATE_MODE_KEY = 
              "oam.view.resetSaveStateMode";
  
      /**
       * Key under UIViewRoot to generated unique ids for components added 
       * by @ResourceDependency effect.
       */
      private static final String RESOURCE_DEPENDENCY_UNIQUE_ID_KEY =
                "oam.view.resourceDependencyUniqueId";
      private static final String UNIQUE_ID_COUNTER_KEY =
                "oam.view.uniqueIdCounter";
      
      private Map<String, Object> _delegate;
      private UIViewRoot _root;
  
      public _ViewAttributeMap(UIViewRoot root, Map<String, Object> delegate)
      {
          this._delegate = delegate;
          this._root = root;
      }
  
      public int size()
      {
          return _delegate.size();
      }
  
      public boolean isEmpty()
      {
          return _delegate.isEmpty();
      }
  
      public boolean containsKey(Object key)
      {
          return _delegate.containsKey(key);
      }
  
      public boolean containsValue(Object value)
      {
          return _delegate.containsValue(value);
      }
  
      public Object get(Object key)
      {
          checkKey(key);
          int keyLength = ((String)key).length();
  
          if (RESET_SAVE_STATE_MODE_KEY.length() == keyLength
              && RESET_SAVE_STATE_MODE_KEY.equals(key))
          {
              return _root.getResetSaveStateMode();
          }
          if (RESOURCE_DEPENDENCY_UNIQUE_ID_KEY.length() == keyLength
              && RESOURCE_DEPENDENCY_UNIQUE_ID_KEY.equals(key))
          {
              return _root.isResourceDependencyUniqueId();
          }
          if (UNIQUE_ID_COUNTER_KEY.length() == keyLength
              && UNIQUE_ID_COUNTER_KEY.equals(key))
          {
              return _root.getStateHelper().get(UIViewRoot.PropertyKeys.uniqueIdCounter);
          }
          return _delegate.get(key);
      }
  
      public Object put(String key, Object value)
      {
          int keyLength = ((String)key).length();
  
          if (RESET_SAVE_STATE_MODE_KEY.length() == keyLength
             && RESET_SAVE_STATE_MODE_KEY.equals(key))
         {
             Integer b = _root.getResetSaveStateMode();
             _root.setResetSaveStateMode(value == null ? 0 : (Integer) value);
             return b;
         }
         if (RESOURCE_DEPENDENCY_UNIQUE_ID_KEY.length() == keyLength
             && RESOURCE_DEPENDENCY_UNIQUE_ID_KEY.equals(key))
         {
             boolean b = _root.isResourceDependencyUniqueId();
             _root.setResourceDependencyUniqueId(value == null ? false : (Boolean) value);
             return b;
         }
         if (UNIQUE_ID_COUNTER_KEY.length() == keyLength
             && UNIQUE_ID_COUNTER_KEY.equals(key))
         {
             Integer v = (Integer) _root.getStateHelper().get(UIViewRoot.PropertyKeys.uniqueIdCounter);
             _root.getStateHelper().put(UIViewRoot.PropertyKeys.uniqueIdCounter, value);
             return v;
         }
         return _delegate.put(key, value);
     }
 
     public Object remove(Object key)
     {
         return _delegate.remove(key);
     }
 
     public void putAll(Map<? extends String, ? extends Object> m)
     {
         _delegate.putAll(m);
     }
 
     public void clear()
     {
         _delegate.clear();
     }
 
     public Set<String> keySet()
     {
         return _delegate.keySet();
     }
 
     public Collection<Object> values()
     {
         return _delegate.values();
     }
 
     public Set<Entry<String, Object>> entrySet()
     {
         return _delegate.entrySet();
     }
 
     public boolean equals(Object o)
     {
         return _delegate.equals(o);
     }
 
     public int hashCode()
     {
         return _delegate.hashCode();
     }
 
     public String toString()
     {
         return _delegate.toString();
     }
     
     private void checkKey(Object key)
     {
         if (key == null)
         {
             throw new NullPointerException("key");
         }
         if (!(key instanceof String))
         {
             throw new ClassCastException("key is not a String");
         }
     }
 }