/*

  * 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.beans.BeanInfo;

 import java.beans.IntrospectionException;

 import java.beans.PropertyDescriptor;

 import java.lang.reflect.Method;

 import java.util.HashMap;

 import java.util.Map;

 import javax.el.ValueExpression;

 import javax.faces.view.facelets.MetadataTarget;

 import javax.faces.context.FacesContext;

 import org.apache.myfaces.shared.util.ClassUtils;

 /**

  * Like MetadataTargetImpl but integrate composite component bean info

  * with it.

  * 

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

  * @version $Revision$ $Date$

  */

 final class CompositeMetadataTargetImpl extends MetadataTarget

 {

     private final Map<String, PropertyDescriptor> _pd;

     private final MetadataTarget _delegate;

     private final BeanInfo _beanInfo;

     public CompositeMetadataTargetImpl(MetadataTarget delegate, BeanInfo beanInfo) throws IntrospectionException

     {

         _delegate = delegate;

         _beanInfo = beanInfo;

         _pd = new HashMap<String, PropertyDescriptor>();

         for (PropertyDescriptor descriptor : _beanInfo.getPropertyDescriptors())

         {

             _pd.put(descriptor.getName(), descriptor);

         }

     }

     public PropertyDescriptor getProperty(String name)

     {

         PropertyDescriptor pd = _delegate.getProperty(name); 

         if (pd == null)

         {

             pd = _pd.get(name);

         }

         return pd;

     }

     public Class<?> getPropertyType(String name)

     {

         PropertyDescriptor pd = getProperty(name);

         if (pd != null)

         {

             Object type = pd.getValue("type");

             if (type != null)

             {

                 type = ((ValueExpression)type).getValue(FacesContext.getCurrentInstance().getELContext());

                 if (type instanceof String)

                 {

                     try

                     {

                         type = ClassUtils.javaDefaultTypeToClass((String)type);

                     }

                     catch (ClassNotFoundException e)

                     {

                         type = Object.class;

                     }

                 }

                 return (Class<?>) type;

             }

             return pd.getPropertyType();

         }

         return null;

     }

     public Method getReadMethod(String name)

     {

         PropertyDescriptor pd = getProperty(name);

         if (pd != null)

         {

             return pd.getReadMethod();

         }

         return null;

     }

     public Class<?> getTargetClass()

     {

         return _delegate.getTargetClass();

     }

     public Method getWriteMethod(String name)

     {

         PropertyDescriptor pd = getProperty(name);

         if (pd != null)

         {

             return pd.getWriteMethod();

         }

         return null;

     }

     public boolean isTargetInstanceOf(Class type)

     {

         return _delegate.isTargetInstanceOf(type);

     }

 }