blob: 16bc1ee47eb81de4f0a1db165cc8b944163bb667 [file] [log] [blame]
/*
* Copyright 2006 The Apache Software Foundation
*
* 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 org.apache.felix.ipojo.manipulation;
import java.util.logging.Level;
import org.apache.felix.ipojo.plugin.IpojoPluginConfiguration;
import org.objectweb.asm.MethodAdapter;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
/**
* Date : 29 janv. 2006
* @author clément
*
*/
public class PreprocessCodeAdapter extends MethodAdapter implements Opcodes {
/** The owner class of the field.
* m_owner : String
*/
private String m_owner;
/** PropertyCodeAdapter constructor.
* A new FiledCodeAdapter should be create for each method visit.
* @param mv MethodVisitor
* @param owner Name of the class
*/
public PreprocessCodeAdapter(final MethodVisitor mv, final String owner) {
super(mv);
m_owner = owner;
}
/** Visit Method for Filed instance (GETFIELD).
* @see org.objectweb.asm.MethodVisitor#visitFieldInsn(int, String, String, String)
* @param opcode : visited operation code
* @param owner : owner of the field
* @param name : name of the field
* @param desc : decriptor of the field
*/
public void visitFieldInsn(
final int opcode,
final String owner,
final String name,
final String desc) {
if (owner.equals(m_owner)) {
if (opcode == GETFIELD) {
IpojoPluginConfiguration.getLogger().log(Level.INFO, "Manipulate a GETFIELD on : " + name);
String gDesc = "()" + desc;
visitMethodInsn(INVOKEVIRTUAL, owner, "_get" + name, gDesc);
return;
} else
if (opcode == PUTFIELD) {
// replaces PUTFIELD f by INVOKESPECIAL _setf
IpojoPluginConfiguration.getLogger().log(Level.INFO, "Manipulate a PUTFIELD on : " + name);
String sDesc = "(" + desc + ")V";
visitMethodInsn(INVOKESPECIAL, owner, "_set" + name, sDesc);
return;
}
}
super.visitFieldInsn(opcode, owner, name, desc);
}
}