org.apache.ibatis.logging.jdbc.ConnectionLogger Maven / Gradle / Ivy
/**
* Copyright 2009-2017 the original author or authors.
*
* 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.ibatis.logging.jdbc;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.Statement;
import org.apache.ibatis.logging.Log;
import org.apache.ibatis.reflection.ExceptionUtil;
/**
* Connection proxy to add logging
*
* @author Clinton Begin
* @author Eduardo Macarron
*
*/
public final class ConnectionLogger extends BaseJdbcLogger implements InvocationHandler {
private final Connection connection;
private ConnectionLogger(Connection conn, Log statementLog, int queryStack) {
super(statementLog, queryStack);
this.connection = conn;
}
@Override
public Object invoke(Object proxy, Method method, Object[] params)
throws Throwable {
try {
if (Object.class.equals(method.getDeclaringClass())) {
return method.invoke(this, params);
}
if ("prepareStatement".equals(method.getName())) {
if (isDebugEnabled()) {
debug(" Preparing: " + removeBreakingWhitespace((String) params[0]), true);
}
PreparedStatement stmt = (PreparedStatement) method.invoke(connection, params);
stmt = PreparedStatementLogger.newInstance(stmt, statementLog, queryStack);
return stmt;
} else if ("prepareCall".equals(method.getName())) {
if (isDebugEnabled()) {
debug(" Preparing: " + removeBreakingWhitespace((String) params[0]), true);
}
PreparedStatement stmt = (PreparedStatement) method.invoke(connection, params);
stmt = PreparedStatementLogger.newInstance(stmt, statementLog, queryStack);
return stmt;
} else if ("createStatement".equals(method.getName())) {
Statement stmt = (Statement) method.invoke(connection, params);
stmt = StatementLogger.newInstance(stmt, statementLog, queryStack);
return stmt;
} else {
return method.invoke(connection, params);
}
} catch (Throwable t) {
throw ExceptionUtil.unwrapThrowable(t);
}
}
/*
* Creates a logging version of a connection
*
* @param conn - the original connection
* @return - the connection with logging
*/
public static Connection newInstance(Connection conn, Log statementLog, int queryStack) {
InvocationHandler handler = new ConnectionLogger(conn, statementLog, queryStack);
ClassLoader cl = Connection.class.getClassLoader();
return (Connection) Proxy.newProxyInstance(cl, new Class[]{Connection.class}, handler);
}
/*
* return the wrapped connection
*
* @return the connection
*/
public Connection getConnection() {
return connection;
}
}