/*
    * 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.apache.myfaces.context.servlet;
  
  import java.util.Iterator;
  
  import javax.faces.application.FacesMessage;
  import javax.faces.context.ExternalContext;
  import javax.faces.context.ResponseStream;
  import javax.faces.context.ResponseWriter;
  
  import org.apache.myfaces.context.ReleaseableExternalContext;
  
  /**
   * A FacesContext implementation which will be set as the current instance
   * during container startup and shutdown and which provides a basic set of
   * FacesContext functionality.
   * 
   * @author Jakob Korherr (latest modification by $Author: jakobk $)
   * @version $Revision: 963629 $ $Date: 2010-07-13 04:29:07 -0500 (Mar, 13 Jul 2010) $
   */
  public class StartupFacesContextImpl extends FacesContextImplBase
  {
      
      public static final String EXCEPTION_TEXT = "This method is not supported during ";
  
      private boolean _startup;
      
      public StartupFacesContextImpl(
              ExternalContext externalContext, 
              ReleaseableExternalContext defaultExternalContext,
              boolean startup)
      {
          // setCurrentInstance is called in constructor of super class
          super(externalContext, defaultExternalContext);
          
          _startup = startup;
      }
  
      // ~ Methods which are valid by spec to be called during startup and shutdown------
      
      // public final UIViewRoot getViewRoot() implemented in super-class
      // public void release() implemented in super-class
      // public final ExternalContext getExternalContext() implemented in super-class
      // public Application getApplication() implemented in super-class
      // public boolean isProjectStage(ProjectStage stage) implemented in super-class
      
      // ~ Methods which can be called during startup and shutdown, but are not
      //   officially supported by the spec--------------------------------------
      
      // all other methods on FacesContextImplBase
      
      // ~ Methods which are unsupported during startup and shutdown-------------
  
      @Override
      public final FacesMessage.Severity getMaximumSeverity()
      {
          assertNotReleased();
          throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
      }
      
      @Override
      public final Iterator<FacesMessage> getMessages()
      {
          assertNotReleased();
          throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
      }
      
      
      @Override
      public final Iterator<String> getClientIdsWithMessages()
      {
          assertNotReleased();
          throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
      }
  
      @Override
      public final Iterator<FacesMessage> getMessages(final String clientId)
      {
          assertNotReleased();
          throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
      }
  
     @Override
     public final void addMessage(final String clientId, final FacesMessage message)
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
 
     @Override
     public final void renderResponse()
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
 
     @Override
     public final void responseComplete()
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
 
     @Override
     public final boolean getRenderResponse()
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
 
     @Override
     public final boolean getResponseComplete()
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
 
     @Override
     public final void setResponseStream(final ResponseStream responseStream)
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
 
     @Override
     public final ResponseStream getResponseStream()
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
 
     @Override
     public final void setResponseWriter(final ResponseWriter responseWriter)
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
 
     @Override
     public final ResponseWriter getResponseWriter()
     {
         assertNotReleased();
         throw new UnsupportedOperationException(EXCEPTION_TEXT + _getTime());
     }
     
     // ~ private Methods ------------------------------------------------------
     
     /**
      * Returns startup or shutdown as String according to the field _startup.
      * @return
      */
     private String _getTime()
     {
         return _startup ? "startup" : "shutdown";
     }
     
 }