scouter.agent.asm.JDBCResultSetASM Maven / Gradle / Ivy
/*
* 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.asm;
import scouter.agent.ClassDesc;
import scouter.agent.Configure;
import scouter.agent.Logger;
import scouter.agent.asm.jdbc.RsCloseMV;
import scouter.agent.asm.jdbc.RsInitMV;
import scouter.agent.asm.jdbc.RsNextMV;
import scouter.agent.asm.util.HookingSet;
import scouter.org.objectweb.asm.ClassVisitor;
import scouter.org.objectweb.asm.MethodVisitor;
import scouter.org.objectweb.asm.Opcodes;
import java.util.HashSet;
public class JDBCResultSetASM implements IASM, Opcodes {
public final HashSet target = HookingSet.getHookingClassSet(Configure.getInstance().hook_jdbc_rs_classes);
public final HashSet onlyCloseTarget = new HashSet();
public final HashSet onlyNextTarget = new HashSet();
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");
//only close
String alti1 = "Altibase/jdbc/driver/AltibaseResultSet";
target.add(alti1); onlyCloseTarget.add(alti1);
//only next
String alti2 = "Altibase/jdbc/driver/AltibaseEmptyResultSet";
String alti3 = "Altibase/jdbc/driver/AltibaseForwardOnlyResultSet";
String alti4 = "Altibase/jdbc/driver/AltibaseScrollInsensitiveResultSet";
String alti5 = "Altibase/jdbc/driver/AltibaseLightWeightResultSet";
String alti6 = "Altibase/jdbc/driver/AltibaseTempResultSet";
String alti7 = "Altibase/jdbc/driver/AltibaseUpdatableResultSet";
target.add(alti2); onlyNextTarget.add(alti2);
target.add(alti3); onlyNextTarget.add(alti3);
target.add(alti4); onlyNextTarget.add(alti4);
target.add(alti5); onlyNextTarget.add(alti5);
target.add(alti6); onlyNextTarget.add(alti6);
target.add(alti7); onlyNextTarget.add(alti7);
}
public ClassVisitor transform(ClassVisitor cv, String className, ClassDesc classDesc) {
if (Configure.getInstance()._hook_dbsql_enabled == false) {
return cv;
}
if (target.contains(className) == false) {
return cv;
}
Logger.println("A107", "jdbc rs found: " + className);
Scope scope = Scope.ALL;
if (onlyCloseTarget.contains(className)) {
scope = Scope.ONLYINIT;
} else if (onlyNextTarget.contains(className)) {
scope = Scope.ONLYNEXT;
}
return new ResultSetCV(cv, scope);
}
protected static enum Scope {
ALL, ONLYINIT, ONLYNEXT,;
}
}
class ResultSetCV extends ClassVisitor implements Opcodes {
JDBCResultSetASM.Scope scope;
public ResultSetCV(ClassVisitor cv, JDBCResultSetASM.Scope scope) {
super(ASM4, cv);
this.scope = scope;
}
@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) && scope != JDBCResultSetASM.Scope.ONLYNEXT) {
return new RsInitMV(access, desc, mv);
} else if ("next".equals(name) && "()Z".equals(desc) && scope != JDBCResultSetASM.Scope.ONLYINIT) {
return new RsNextMV(mv);
} else if ("close".equals(name) && "()V".equals(desc) && scope != JDBCResultSetASM.Scope.ONLYNEXT) {
return new RsCloseMV(mv);
}
return mv;
}
}