/*

  * 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.taglib.core;

 import javax.faces.component.UIComponent;

 import javax.faces.component.UINamingContainer;

 import javax.faces.component.UIOutput;

 import javax.faces.context.FacesContext;

 import javax.faces.webapp.UIComponentELTag;

 import org.apache.myfaces.application.jsp.ServletViewResponseWrapper;

 /**

  * @author Thomas Spiegl (latest modification by $Author$)

  * @version $Revision$ $Date$

  */

 public class SubviewTag extends UIComponentELTag

 {

     public SubviewTag()

     {

         super();

     }

     @Override

     public String getComponentType()

     {

         return UINamingContainer.COMPONENT_TYPE;

     }

     @Override

     public String getRendererType()

     {

         return null;

     }

     /**

      * Creates a UIComponent from the BodyContent If a Subview is included via the <jsp:include> tag the corresponding

      * jsp is rendered with getServletContext().getRequestDispatcher("includedSite").include(request,response) and it is

      * possible that something was written to the Response direct. So is is necessary that the content of the wrapped

      * response is added to the componenttree.

      * 

      * @return UIComponent or null

      */

     @Override

     protected UIComponent createVerbatimComponentFromBodyContent()

     {

         UIOutput component = (UIOutput)super.createVerbatimComponentFromBodyContent();

         FacesContext facesContext = FacesContext.getCurrentInstance();

         Object response = facesContext.getExternalContext().getResponse();

         String wrappedOutput;

         if (response instanceof ServletViewResponseWrapper)

         {

             ServletViewResponseWrapper wrappedResponse = (ServletViewResponseWrapper)response;

             wrappedOutput = wrappedResponse.toString();

             if (wrappedOutput != null && wrappedOutput.length() > 0)

             {

                 String componentvalue = null;

                 if (component != null)

                 {

                     // save the Value of the Bodycontent

                     componentvalue = (String)component.getValue();

                 }

                 component = super.createVerbatimComponent();

                 if (componentvalue != null)

                 {

                     component.setValue(wrappedOutput + componentvalue);

                 }

                 else

                 {

                     component.setValue(wrappedOutput);

                 }

                 wrappedResponse.reset();

             }

         }

         return component;

     }

 }