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/*******************************************************************************
* Copyright (c) 2005 Contributors.
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v1.0
* which accompanies this distribution and is available at
* http://eclipse.org/legal/epl-v10.html
*
* Contributors:
* Alexandre Vasseur initial implementation
*******************************************************************************/
package org.aspectj.weaver.loadtime;
import java.lang.instrument.ClassFileTransformer;
import java.lang.instrument.IllegalClassFormatException;
import java.security.ProtectionDomain;
/**
* Java 1.5 adapter for class pre processor
*
* @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur</a>
*/
public class ClassPreProcessorAgentAdapter implements ClassFileTransformer {
/**
* Concrete preprocessor.
*/
private static ClassPreProcessor s_preProcessor;
static {
try {
s_preProcessor = new Aj();
s_preProcessor.initialize();
} catch (Exception e) {
throw new ExceptionInInitializerError("could not initialize JSR163 preprocessor due to: " + e.toString());
}
}
/**
* Invokes the weaver to modify some set of input bytes.
*
* @param loader the defining class loader
* @param className the name of class being loaded
* @param classBeingRedefined is set when hotswap is being attempted
* @param protectionDomain the protection domain for the class being loaded
* @param bytes the incoming bytes (before weaving)
* @return the woven bytes
*/
public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain,
byte[] bytes) throws IllegalClassFormatException {
if (classBeingRedefined != null) {
System.err.println("INFO: (Enh120375): AspectJ attempting reweave of '" + className + "'");
}
return s_preProcessor.preProcess(className, bytes, loader, protectionDomain);
}
}
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