/**
* Copyright (c) 2000-2014 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.faces.jrebel;
import org.zeroturnaround.bundled.javassist.ClassPool;
import org.zeroturnaround.bundled.javassist.CtClass;
import org.zeroturnaround.bundled.javassist.CtMethod;
import org.zeroturnaround.bundled.javassist.NotFoundException;
import org.zeroturnaround.javarebel.integration.support.JavassistClassBytecodeProcessor;
/**
* This class will add template reloading functionality to classes that extend {@link javax.faces.render.Renderer} and
* that also implement {@link javax.faces.event.SystemEventListener}.
*
* @author Neil Griffin
*/
public class RendererBytecodeProcessor extends JavassistClassBytecodeProcessor {
@Override
public void process(ClassPool classPool, ClassLoader classLoader, CtClass ctClass) throws Exception {
try {
CtClass rendererCtClass = classPool.get("javax.faces.render.Renderer");
if (ctClass.subclassOf(rendererCtClass)) {
CtClass[] ctInterfaces = ctClass.getInterfaces();
boolean hasInterface = false;
for (CtClass ctInterface : ctInterfaces) {
if ("javax.faces.event.SystemEventListener".equals(ctInterface.getName())) {
hasInterface = true;
break;
}
}
if (hasInterface) {
CtClass facesContextCtClass = classPool.get("javax.faces.context.FacesContext");
CtClass uiComponentCtClass = classPool.get("javax.faces.component.UIComponent");
try {
CtMethod encodeBeginMethod = ctClass.getDeclaredMethod("encodeBegin",
new CtClass[] { facesContextCtClass, uiComponentCtClass });
encodeBeginMethod.insertBefore(
"com.liferay.faces.jrebel.RendererReloader.reloadTemplates($0,$1);");
}
catch (NotFoundException e) {
CtMethod encodeMarkupBeginMethod = ctClass.getDeclaredMethod("encodeMarkupBegin",
new CtClass[] { facesContextCtClass, uiComponentCtClass });
encodeMarkupBeginMethod.insertBefore(
"com.liferay.faces.jrebel.RendererReloader.reloadTemplates($0,$1);");
}
}
}
}
catch (NotFoundException e) {
// ignore
}
catch (Exception e) {
e.printStackTrace();
}
}
}