/*

  * 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.tag.composite;

 import java.io.IOException;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 import javax.faces.component.UIComponent;

 import javax.faces.view.facelets.FaceletContext;

 import javax.faces.view.facelets.TagConfig;

 import javax.faces.view.facelets.TagHandler;

 import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletTag;

 import org.apache.myfaces.view.facelets.AbstractFaceletContext;

 import org.apache.myfaces.view.facelets.FaceletCompositionContext;

 import org.apache.myfaces.view.facelets.tag.ComponentContainerHandler;

 /**

  * @author Leonardo Uribe (latest modification by $Author$)

  * @version $Revision$ $Date$

  */

 @JSFFaceletTag(name="composite:insertChildren")

 public class InsertChildrenHandler extends TagHandler implements ComponentContainerHandler

 {

     public static final String INSERT_CHILDREN_USED = "org.apache.myfaces.INSERT_CHILDREN_USED";

     private static final Logger log = Logger.getLogger(InsertChildrenHandler.class.getName());

     public InsertChildrenHandler(TagConfig config)

     {

         super(config);

     }

     public void apply(FaceletContext ctx, UIComponent parent)

             throws IOException

     {

         UIComponent parentCompositeComponent

                 = FaceletCompositionContext.getCurrentInstance(ctx).getCompositeComponentFromStack();

         AbstractFaceletContext actx = (AbstractFaceletContext) ctx;

         if (actx.isBuildingCompositeComponentMetadata())

         {

             CompositeComponentBeanInfo beanInfo = 

                 (CompositeComponentBeanInfo) parentCompositeComponent.getAttributes()

                 .get(UIComponent.BEANINFO_KEY);

             if (beanInfo == null)

             {

                 if (log.isLoggable(Level.SEVERE))

                 {

                     log.severe("Cannot find composite bean descriptor UIComponent.BEANINFO_KEY ");

                 }

                 return;

             }

             beanInfo.getBeanDescriptor().setValue(INSERT_CHILDREN_USED, Boolean.TRUE);

         }

         else

         {

             actx.includeCompositeComponentDefinition(parent, null);

         }

     }

 }