/*

  * 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.view.facelets.el;

 import javax.el.ELContext;

 import javax.el.ValueExpression;

 import javax.faces.FacesWrapper;

 import javax.faces.context.FacesContext;

 import javax.faces.view.Location;

 /**

  * 

  * @author Leonardo Uribe 

  */

 public class ResourceLocationValueExpression extends LocationValueExpression implements FacesWrapper<ValueExpression>

 {

     private static final long serialVersionUID = -5636849184764526288L;

     public ResourceLocationValueExpression()

     {

         super();

     }

     public ResourceLocationValueExpression(Location location, ValueExpression delegate)

     {

         super(location, delegate);

     }

     @Override

     public Class<?> getType(ELContext context)

     {

         FacesContext facesContext = (FacesContext) context.getContext(FacesContext.class);

         ResourceELUtils.saveResourceLocationForResolver(facesContext, location);

         try

         {

             return delegate.getType(context);

         }

         finally

         {

             ResourceELUtils.removeResourceLocationForResolver(facesContext);

         }

     }

     @Override

     public Object getValue(ELContext context)

     {

         FacesContext facesContext = (FacesContext) context.getContext(FacesContext.class);

         ResourceELUtils.saveResourceLocationForResolver(facesContext, location);

         try

         {

             return delegate.getValue(context);

         }

         finally

         {

             ResourceELUtils.removeResourceLocationForResolver(facesContext);

         }

     }

     @Override

     public boolean isReadOnly(ELContext context)

     {

         FacesContext facesContext = (FacesContext) context.getContext(FacesContext.class);

         ResourceELUtils.saveResourceLocationForResolver(facesContext, location);

         try

         {

             return delegate.isReadOnly(context);

         }

         finally

         {

             ResourceELUtils.removeResourceLocationForResolver(facesContext);

         }

     }

     @Override

     public void setValue(ELContext context, Object value)

     {

         FacesContext facesContext = (FacesContext) context.getContext(FacesContext.class);

         ResourceELUtils.saveResourceLocationForResolver(facesContext, location);

         try

         {

             delegate.setValue(context, value);

         }

         finally

         {

             ResourceELUtils.removeResourceLocationForResolver(facesContext);

         }

     }

     @Override

     public boolean equals(Object obj)

     {

         return delegate.equals(obj);

     }

     @Override

     public String getExpressionString()

     {

         return delegate.getExpressionString();

     }

     @Override

     public int hashCode()

     {

         return delegate.hashCode();

     }

     @Override

     public boolean isLiteralText()

     {

         return delegate.isLiteralText();

     }

     public ValueExpression getWrapped()

     {

         return delegate;

     }

 }