de.bodden.tamiflex.playout.transformation.clazz.ClassForNameTransformation.java Source code

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Here is the source code for de.bodden.tamiflex.playout.transformation.clazz.ClassForNameTransformation.java

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/*******************************************************************************
 * Copyright (c) 2010 Eric Bodden.
 * 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://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Eric Bodden - initial implementation
 ******************************************************************************/
package de.bodden.tamiflex.playout.transformation.clazz;

import static org.objectweb.asm.Opcodes.ALOAD;
import static org.objectweb.asm.Opcodes.ARETURN;
import static org.objectweb.asm.Opcodes.INVOKESTATIC;

import org.objectweb.asm.MethodAdapter;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.commons.Method;

import de.bodden.tamiflex.playout.transformation.AbstractTransformation;

public class ClassForNameTransformation extends AbstractTransformation {

    public ClassForNameTransformation() {
        super(Class.class, new Method("forName", "(Ljava/lang/String;)Ljava/lang/Class;"),
                new Method("forName", "(Ljava/lang/String;ZLjava/lang/ClassLoader;)Ljava/lang/Class;"));
    }

    @Override
    protected MethodVisitor getMethodVisitor(MethodVisitor parent) {
        return new MethodAdapter(parent) {

            @Override
            public void visitInsn(int opcode) {
                if (opcode == ARETURN) {
                    mv.visitVarInsn(ALOAD, 0); // Load Class instance
                    mv.visitMethodInsn(INVOKESTATIC, "de/bodden/tamiflex/playout/rt/ReflLogger", "classForName",
                            "(Ljava/lang/String;)V");
                }
                super.visitInsn(opcode);
            }
        };
    }
}