/*

  * Copyright 2006-2007 the original author or authors.

  *

  * 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 net.sf.ezmorph.object;

 import net.sf.ezmorph.MorphException;

 import net.sf.ezmorph.ObjectMorpher;

 /**

  * Morphs to a Class.<br>

  * This morpher is a singleton.

  *

  * @author Andres Almiray <aalmiray@users.sourceforge.net>

  */

 public final class ClassMorpher implements ObjectMorpher

 {

    private static final ClassMorpher INSTANCE = new ClassMorpher();

    /**

     * Returns the singleton instance

     */

    public static ClassMorpher getInstance()

    {

       return INSTANCE;

    }

    private ClassMorpher()

    {

    }

    public boolean equals( Object obj )

    {

       return INSTANCE == obj;

    }

    public int hashCode()

    {

       return 42 + getClass().hashCode();

    }

    public Object morph( Object value )

    {

       if( value == null ){

          return null;

       }

       if( value instanceof Class ){

          return (Class) value;

       }

       if( "null".equals( value ) ){

          return null;

       }

       try{

          return Class.forName( value.toString() );

       }

       catch( Exception e ){

          throw new MorphException( e );

       }

    }

    public Class morphsTo()

    {

       return Class.class;

    }

    public boolean supports( Class clazz )

    {

       return true;

    }

 }