/**

  * Copyright 2005-2013 Dozer Project

  *

  * Licensed 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.dozer.factory;

 import org.dozer.BeanFactory;

 import org.dozer.util.MappingUtils;

 import org.dozer.util.ReflectionUtils;

 import java.lang.reflect.Method;

 /**

  * Public custom bean factory that can be used by applition code when mapping XMLBean data objects

  * 

  * @author garsombke.franz

  */

 public class XMLBeanFactory implements BeanFactory {

   private static final Class<?>[] emptyArglist = new Class[0];

   /**

    * Creat a bean implementation of a xml bean interface.

    * 

    * @param srcObj

    *          The source object

    * @param srcObjClass

    *          The source object class

    * @param beanId

    *          the name of the destination interface class

    * @return A implementation of the destination interface

    */

   public Object createBean(Object srcObj, Class<?> srcObjClass, String beanId) {

     Object result;

     Class<?> destClass = MappingUtils.loadClass(beanId);

     Class<?>[] innerClasses = destClass.getClasses();

     Class<?> factory = null;

     for (Class<?> innerClass : innerClasses) {

       if (innerClass.getName().endsWith("Factory")) {

         factory = innerClass;

       }

     }

     if (factory == null) {

       MappingUtils.throwMappingException("Factory class of Bean of type " + beanId + " not found.");

     }

     Method newInstanceMethod = null;

     try {

       newInstanceMethod = ReflectionUtils.getMethod(factory, "newInstance", emptyArglist);

     } catch (NoSuchMethodException e) {

       MappingUtils.throwMappingException(e);

     }

     result = ReflectionUtils.invoke(newInstanceMethod, null, emptyArglist);

     return result;

   }

 }