/*
* 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.batch.asm.jdbc;
import scouter.agent.Logger;
import scouter.agent.asm.util.AsmUtil;
import scouter.agent.batch.trace.TraceContextManager;
import scouter.agent.batch.trace.TraceSQL;
import scouter.org.objectweb.asm.MethodVisitor;
import scouter.org.objectweb.asm.Opcodes;
import scouter.org.objectweb.asm.Type;
import scouter.org.objectweb.asm.commons.LocalVariablesSorter;
/**
* BCI for a constructor of PreparedStatement
* @author @author Paul S.J. Kim(sjkim@whatap.io)
* @author Gun Lee (gunlee01@gmail.com)
*/
public class PsInitMV extends LocalVariablesSorter implements Opcodes {
private final static String TRACE = TraceContextManager.class.getName().replace('.', '/');
private final static String METHOD = "getTraceSQL";
private final static String SIGNATURE = "(Ljava/lang/String;)Lscouter/agent/batch/trace/TraceSQL;";
private String owner;
private int sqlIdx = -1;
private boolean isUstatement = false;
public PsInitMV(int access, String desc, MethodVisitor mv, String owner) {
super(ASM4, access, desc, mv);
this.owner = owner;
this.sqlIdx = AsmUtil.getStringIdx(access, desc);
if(this.sqlIdx < 0) {
//CUBRID Case
this.sqlIdx = AsmUtil.getIdxByType(access, desc, Type.getType("Lcubrid/jdbc/jci/UStatement;"));
Logger.trace("CUBRID PSTMT LOAD - " + this.sqlIdx);
this.isUstatement = true;
}
}
@Override
public void visitInsn(int opcode) {
if (sqlIdx >= 0 && (opcode >= IRETURN && opcode <= RETURN)) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, sqlIdx);
if(isUstatement) {
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKEVIRTUAL, "cubrid/jdbc/jci/UStatement", "getQuery", "()Ljava/lang/String;", false);
}
mv.visitMethodInsn(Opcodes.INVOKESTATIC, TRACE, METHOD, SIGNATURE, false);
mv.visitFieldInsn(PUTFIELD, owner, TraceSQL.CURRENT_TRACESQL_FIELD, "Lscouter/agent/batch/trace/TraceSQL;");
}
mv.visitInsn(opcode);
}
}