/*
* Copyright 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 jdave.unfinalizer.internal;
import jdave.org.objectweb.asm.ClassReader;
import jdave.org.objectweb.asm.ClassVisitor;
import jdave.org.objectweb.asm.ClassWriter;
/**
* Delegate class file in byte array to an ASM ClassVisitor and returns
* transformed byte array.
*
* @author Tuomas Karkkainen
*/
public abstract class ClassVisitorDelegator {
public byte[] transform(final byte[] originalClass) {
final ClassReader reader = new ClassReader(originalClass);
final ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
reader.accept(createClassVisitor(writer), ClassReader.SKIP_FRAMES);
return writer.toByteArray();
}
protected abstract ClassVisitor createClassVisitor(final ClassWriter writer);
}