scouter.agent.asm.jdbc.StInitMV.java Source code

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Here is the source code for scouter.agent.asm.jdbc.StInitMV.java

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/*
 *  Copyright 2015 Scouter Project.
 *
 *  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 scouter.agent.asm.jdbc;

import scouter.agent.trace.TraceSQL;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.commons.LocalVariablesSorter;

public class StInitMV extends LocalVariablesSorter implements Opcodes {

    private final static String TRACESQL = TraceSQL.class.getName().replace('.', '/');
    private final static String METHOD_INIT = "stmtInit";
    private final static String SIGNATURE_INIT = "(Ljava/lang/Object;)V";

    public StInitMV(int access, String desc, MethodVisitor mv) {
        super(ASM7, access, desc, mv);
    }

    @Override
    public void visitInsn(int opcode) {
        if (opcode >= IRETURN && opcode <= RETURN) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(Opcodes.INVOKESTATIC, TRACESQL, METHOD_INIT, SIGNATURE_INIT, false);
        }
        mv.visitInsn(opcode);
    }
}