/**

  * 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 org.slf4j.Logger;

 import org.slf4j.LoggerFactory;

 import java.lang.reflect.Method;

 /**

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

  * 

  * @author Vincent Jassogne

  */

 public class JAXBBeanFactory implements BeanFactory {

   private final Logger log = LoggerFactory.getLogger(JAXBBeanFactory.class);

   private static final char INNER_CLASS_DELIMETER = '$';

   /**

    * Create a bean implementation of a jaxb 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) {

     log.debug("createBean(Object, Class, String) - start [{}]", beanId);

     int indexOf = beanId.indexOf(INNER_CLASS_DELIMETER);

     while (indexOf > 0) {

       beanId = beanId.substring(0, indexOf) + beanId.substring(indexOf + 1);

       log.debug("createBean(Object, Class, String) - HAS BEEN CHANGED TO  [{}]", beanId);

       indexOf = beanId.indexOf(INNER_CLASS_DELIMETER);

     }

     Object result;

     Class<?> objectFactory = MappingUtils.loadClass(beanId.substring(0, beanId.lastIndexOf(".")) + ".ObjectFactory");

     Object factory = ReflectionUtils.newInstance(objectFactory);

     Method method = null;

     try {

       method = ReflectionUtils.getMethod(objectFactory, "create" + beanId.substring(beanId.lastIndexOf(".") + 1), new Class[] {});

     } catch (NoSuchMethodException e) {

       MappingUtils.throwMappingException(e);

     }

     Object returnObject = ReflectionUtils.invoke(method, factory, new Object[] {});

     log.debug("createBean(Object, Class, String) - end [{}]", returnObject.getClass().getName());    

     result = returnObject;

     return result;

   }

 }