| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.openjpa.lib.jdbc; |
| |
| import java.sql.Connection; |
| |
| import org.apache.openjpa.lib.log.Log; |
| import org.apache.openjpa.lib.log.NoneLogFactory; |
| import org.apache.openjpa.lib.util.Localizer; |
| |
| /** |
| * Provies basic logging facilities to a DataSource. |
| * |
| * @author Marc Prud'hommeaux |
| * @nojavadoc |
| */ |
| public class DataSourceLogs { |
| |
| private static final Localizer _loc = |
| Localizer.forPackage(DataSourceLogs.class); |
| |
| private Log _jdbcLog = null; |
| private Log _sqlLog = null; |
| |
| public DataSourceLogs() { |
| } |
| |
| /** |
| * The log to write JDBC messages to. |
| */ |
| public Log getJDBCLog() { |
| return (_jdbcLog == null) ? NoneLogFactory.NoneLog.getInstance() |
| : _jdbcLog; |
| } |
| |
| /** |
| * The log to write JDBC messages to. |
| */ |
| public void setJDBCLog(Log log) { |
| _jdbcLog = log; |
| } |
| |
| /** |
| * Return true if JDBC logging is enabled. |
| */ |
| public boolean isJDBCEnabled() { |
| return (_jdbcLog != null && _jdbcLog.isTraceEnabled()); |
| } |
| |
| /** |
| * The log to write SQL messages to. |
| */ |
| public Log getSQLLog() { |
| return (_sqlLog == null) ? NoneLogFactory.NoneLog.getInstance() |
| : _sqlLog; |
| } |
| |
| /** |
| * The log to write SQL messages to. |
| */ |
| public void setSQLLog(Log log) { |
| _sqlLog = log; |
| } |
| |
| /** |
| * Return true if SQL logging is enabled. |
| */ |
| public boolean isSQLEnabled() { |
| return (_sqlLog != null && _sqlLog.isTraceEnabled()); |
| } |
| |
| /** |
| * Log a JDBC message on behalf of the given connection. |
| */ |
| public void logJDBC(String msg, Connection conn) { |
| log(msg, conn, _jdbcLog); |
| } |
| |
| /** |
| * Log a JDBC message on behalf of the given connection. |
| */ |
| public void logJDBC(String msg, long startTime, Connection conn) { |
| log(msg, conn, _jdbcLog, startTime); |
| } |
| |
| /** |
| * Log a SQL message on behalf of the given connection. |
| */ |
| public void logSQL(String msg, Connection conn) { |
| log(msg, conn, _sqlLog); |
| } |
| |
| /** |
| * Log a SQL message on behalf of the given connection. |
| */ |
| public void logSQL(String msg, long startTime, Connection conn) { |
| log(msg, conn, _sqlLog, startTime); |
| } |
| |
| /** |
| * Log a message to the given logger. |
| */ |
| private static void log(String msg, Connection conn, Log log) { |
| log(msg, conn, log, -1); |
| } |
| |
| /** |
| * Log a message to the given logger. |
| */ |
| private static void log(String msg, Connection conn, |
| Log log, long startTime) { |
| if (log == null || !log.isTraceEnabled()) |
| return; |
| |
| long totalTime = -1; |
| if (startTime != -1) |
| totalTime = System.currentTimeMillis() - startTime; |
| |
| StringBuffer buf = new StringBuffer(25 + msg.length()); |
| buf.append("<t ").append(Thread.currentThread().hashCode()); |
| if (conn != null) |
| buf.append(", ").append(conn); |
| buf.append("> "); |
| |
| // if the time != -1, append time profiling information |
| if (totalTime != -1) |
| buf.append("[").append(totalTime).append(" ms] "); |
| |
| buf.append(msg); |
| log.trace(_loc.get("datasource-trace-data", buf.toString())); |
| } |
| } |
| |