/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * 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.seasar.teeda.core.util;

 import java.lang.reflect.Constructor;

 import java.lang.reflect.InvocationTargetException;

 import javax.faces.FacesException;

 import org.seasar.framework.exception.IllegalAccessRuntimeException;

 import org.seasar.framework.exception.InstantiationRuntimeException;

 import org.seasar.framework.exception.InvocationTargetRuntimeException;

 import org.seasar.framework.util.ClassUtil;

 /**

  * @author shot

  */

 public class MarshalUtil {

     public static Object createMarshalInstance(String className,

             Class beforeClass, Object current) {

         return createMarshalInstance(ClassUtil.forName(className), beforeClass,

                 current);

     }

     public static Object createMarshalInstance(Class clazz, Class beforeClass,

             Object current) {

         if (clazz == null) {

             if (current == null) {

                 throw new IllegalArgumentException();

             } else {

                 return current;

             }

         }

         Constructor constructor = getConstructorWithNoException(clazz,

                 new Class[] { beforeClass });

         if (constructor != null) {

             current = newInstanceByConstructor(constructor,

                     new Object[] { current });

         } else {

             current = ClassUtil.newInstance(clazz);

         }

         return current;

     }

     public static Constructor getConstructorWithNoException(Class clazz,

             Class[] argTypes) {

         if (clazz == null || argTypes == null) {

             throw new IllegalArgumentException();

         }

         try {

             return clazz.getConstructor(argTypes);

         } catch (NoSuchMethodException e) {

             return null;

         }

     }

     public static Object newInstanceByConstructor(Constructor constructor,

             Object[] args) {

         if (constructor == null || args == null) {

             throw new IllegalArgumentException();

         }

         try {

             return constructor.newInstance(args);

         } catch (IllegalArgumentException e) {

             throw new FacesException(e);

         } catch (InstantiationException e) {

             throw new InstantiationRuntimeException(constructor.getClass(), e);

         } catch (IllegalAccessException e) {

             throw new IllegalAccessRuntimeException(constructor.getClass(), e);

         } catch (InvocationTargetException e) {

             throw new InvocationTargetRuntimeException(constructor.getClass(),

                     e);

         }

     }

 }