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/*
* Copyright 2015 the original author or authors.
* @https://github.com/scouter-project/scouter
*
* 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;
import scouter.org.objectweb.asm.ClassVisitor;
import scouter.org.objectweb.asm.MethodVisitor;
import scouter.org.objectweb.asm.Opcodes;
import scouter.org.objectweb.asm.Type;
import scouter.agent.ClassDesc;
import scouter.agent.asm.IASM;
import scouter.agent.asm.util.HookingSet;
import scouter.agent.batch.Configure;
import scouter.agent.batch.Logger;
import scouter.agent.batch.asm.jdbc.RsInitMV;
import scouter.agent.batch.asm.jdbc.RsNextMV;
import scouter.agent.batch.trace.TraceSQL;
import java.util.HashSet;
public class JDBCResultSetASM implements IASM, Opcodes {
public final HashSet target = HookingSet.getHookingClassSet(Configure.getInstance().hook_jdbc_rs_classes);
public JDBCResultSetASM() {
target.add("org/mariadb/jdbc/MySQLResultSet");
target.add("oracle/jdbc/driver/OracleResultSetImpl");
target.add("com/mysql/jdbc/ResultSetImpl");
target.add("org/postgresql/jdbc2/AbstractJdbc2ResultSet");
target.add("org/apache/derby/client/am/ResultSet");
target.add("jdbc/FakeResultSet");
target.add("net/sourceforge/jtds/jdbc/JtdsResultSet");
target.add("com/microsoft/sqlserver/jdbc/SQLServerResultSet");
target.add("oracle/jdbc/driver/InsensitiveScrollableResultSet");
target.add("oracle/jdbc/driver/SensitiveScrollableResultSet");
target.add("org/hsqldb/jdbc/JDBCResultSet");
target.add("cubrid/jdbc/driver/CUBRIDResultSet");
target.add("org/mariadb/jdbc/MariaDbResultSet");
target.add("com/tmax/tibero/jdbc/TbResultSetBase"); //tibero5
target.add("com/tmax/tibero/jdbc/driver/TbResultSetBase"); //tibero6
}
public ClassVisitor transform(ClassVisitor cv, String className, ClassDesc classDesc) {
if (Configure.getInstance().sql_enabled == false) {
return cv;
}
if (target.contains(className) == false) {
return cv;
}
Logger.println("A107", "jdbc rs found: " + className);
return new ResultSetCV(cv);
}
}
class ResultSetCV extends ClassVisitor implements Opcodes {
private String owner;
public ResultSetCV(ClassVisitor cv) {
super(ASM5, cv);
}
@Override
public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
super.visit(version, access, name, signature, superName, interfaces);
super.visitField(ACC_PUBLIC, TraceSQL.CURRENT_TRACESQL_FIELD, Type.getDescriptor(TraceSQL.class), null, null)
.visitEnd();
this.owner = name;
}
@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
if ("".equals(name)) {
return new RsInitMV(access, owner, desc, mv);
} else if ("next".equals(name) && "()Z".equals(desc)) {
return new RsNextMV(owner, mv);
}
return mv;
}
}
