/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation", "Tapestry"
* must not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* or "Tapestry", nor may "Apache" or "Tapestry" appear in their
* name, without prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE TAPESTRY CONTRIBUTOR COMMUNITY
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.tapestry.enhance.javassist;
import javassist.ClassPool;
import javassist.CtClass;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tapestry.enhance.BaseEnhancedClass;
import org.apache.tapestry.enhance.EnhancedClassLoader;
import org.apache.tapestry.enhance.IEnhancer;
/**
* Represents a class to be enhanced using Javassist.
*
* @author Mindbridge
* @version $Id: EnhancedClass.java,v 1.1 2003/06/21 19:47:24 mindbridge Exp $
* @since 3.0
*/
public class EnhancedClass extends BaseEnhancedClass
{
private static final Log LOG = LogFactory.getLog(EnhancedClass.class);
private String _className;
private Class _parentClass;
private EnhancedClassFactory _classFactory;
private ClassFabricator _classFabricator = null;
public EnhancedClass(
String className,
Class parentClass,
EnhancedClassFactory classFactory)
{
_className = className;
_parentClass = parentClass;
_classFactory = classFactory;
}
/**
* @see org.apache.tapestry.enhance.IEnhancedClass#getClassName()
*/
public String getClassName()
{
return _className;
}
public CtClass getObjectType(String type)
{
return _classFactory.getObjectType(type);
}
public ClassFabricator getClassFabricator()
{
if (_classFabricator == null) {
CtClass jaParentClass = getObjectType(_parentClass.getName());
ClassPool classPool = _classFactory.getClassPool();
_classFabricator = new ClassFabricator(_className, jaParentClass, classPool);
}
return _classFabricator;
}
/**
* @see org.apache.tapestry.enhance.IEnhancedClass#createProperty(java.lang.String, java.lang.String)
*/
public void createProperty(String propertyName, String propertyType)
{
createProperty(propertyName, propertyType, null, false);
}
/**
* @see org.apache.tapestry.enhance.IEnhancedClass#createProperty(java.lang.String, java.lang.String, java.lang.String, boolean)
*/
public void createProperty(
String propertyName,
String propertyType,
String readMethodName,
boolean persistent)
{
IEnhancer enhancer = new CreatePropertyEnhancer(propertyName, getObjectType(propertyType), readMethodName, persistent);
addEnhancer(enhancer);
}
/**
* @see org.apache.tapestry.enhance.IEnhancedClass#createAutoParameter(java.lang.String, java.lang.String, java.lang.String, java.lang.String)
*/
public void createAutoParameter(
String propertyName,
String parameterName,
String typeClassName,
String readMethodName)
{
IEnhancer enhancer = new CreateAutoParameterEnhancer(this, propertyName, parameterName, getObjectType(typeClassName), readMethodName);
addEnhancer(enhancer);
}
/**
* @see org.apache.tapestry.enhance.IEnhancedClass#createEnhancedSubclass()
*/
public Class createEnhancedSubclass()
{
performEnhancement();
ClassFabricator cf = getClassFabricator();
cf.commit();
String enhancedClassName = getClassName();
byte[] enhancedClassBytes = cf.getByteCode();
EnhancedClassLoader loader = _classFactory.getEnhancedClassLoader();
return loader.defineClass(enhancedClassName, enhancedClassBytes);
}
}