/*

  * 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.commons.flatfile.morph;

 import org.apache.commons.flatfile.Entity;

 import org.apache.commons.flatfile.EntityFactory;

 import org.apache.commons.flatfile.IndexedEntityCollection;

 import net.sf.morph.reflect.InstantiatingReflector;

 import net.sf.morph.reflect.Reflector;

 import net.sf.morph.reflect.reflectors.BaseReflector;

 import net.sf.morph.reflect.reflectors.SimpleDelegatingReflector;

 /**

  * Instantiates basic entities by sending the source object as a cue object

  * to a configured EntityFactory.

  * @version $Revision: 758023 $ $Date: 2009-03-24 16:09:19 -0500 (Tue, 24 Mar 2009) $

  */

 public class EntityInstantiatingReflector extends BaseReflector implements

         InstantiatingReflector {

     // use a SimpleDelegatingReflector prepended with an

     // EntityCollectionReflector to get the

     // size and contained type of source objects when implementing

     // InstantiatingReflector

     private static final SimpleDelegatingReflector CONTAINER_REFLECTOR = new SimpleDelegatingReflector(

             new Reflector[] { new EntityCollectionReflector() }, true);

     private EntityFactory entityFactory;

     /**

      * Create a new EntityInstantiatingReflector.

      */

     public EntityInstantiatingReflector() {

         // default constructor

     }

     /**

      * Create a new EntityInstantiatingReflector.

      * @param entityFactory to use

      */

     public EntityInstantiatingReflector(EntityFactory entityFactory) {

         setEntityFactory(entityFactory);

     }

     /**

      * {@inheritDoc}

      */

     protected Class<?>[] getReflectableClassesImpl() throws Exception {

         return new Class[] { Entity.class };

     }

     /**

      * Get the entityFactory.

      * @return EntityFactory.

      */

     public EntityFactory getEntityFactory() {

         return entityFactory;

     }

     /**

      * Set the entityFactory.

      * @param entityFactory The EntityFactory entityFactory to set.

      */

     public void setEntityFactory(EntityFactory entityFactory) {

         this.entityFactory = entityFactory;

     }

     /**

      * {@inheritDoc}

      */

     @SuppressWarnings("unchecked")

     protected Object newInstanceImpl(Class destType, Object source)

             throws Exception {

         Entity e = getEntityFactory().getEntity(source);

         if (e instanceof IndexedEntityCollection) {

             IndexedEntityCollection c = (IndexedEntityCollection) e;

             if (c.isSizable()) {

                 c.setSize(CONTAINER_REFLECTOR.getSize(source));

             }

         }

         return e;

     }

 }