net.sf.wraplog.SystemLogger Maven / Gradle / Ivy
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//Copyright (c) 2005, Thomas Aglassinger
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright
//notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
//notice, this list of conditions and the following disclaimer in the
//documentation and/or other materials provided with the distribution.
//
// * Neither the name of the author nor the names of its contributors
//may be used to endorse or promote products derived from this software
//without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
//IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
//THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
//PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
//CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
//EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
//PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
//PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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//SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package net.sf.wraplog;
import java.io.PrintStream;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* Logger to write messages to System.out (debug, info) and
* System.err (warn, error).
*
* Updated to WrapLog version 1.1.
*
* @see System#err
* @see System#out
* @author Thomas Aglassinger
*/
//$Id: SystemLogger.java,v 1.3 2005/12/14 16:07:22 jchapman0 Exp $
public class SystemLogger
extends AbstractLogger {
private SimpleDateFormat format = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss,SSS");
/* (non-Javadoc)
* @see edu.stanford.ejalbert.logging.Logger#log(int, java.lang.String, java.lang.Throwable)
*/
protected void reallyLog(int logLevel, String message, Throwable error) {
PrintStream stream;
if (logLevel < Level.WARN) {
stream = System.out;
}
else {
stream = System.err;
}
if (message == null) {
throw new NullPointerException("message must not be null");
}
if (stream == null) {
throw new NullPointerException("stream must not be null");
}
String threadName = Thread.currentThread().getName();
String dateAndTime = format.format(new Date());
stream.println(dateAndTime + " [" + threadName + "] "
+ getLevelText(logLevel) + " " + message);
if (error != null) {
error.printStackTrace(stream);
}
}
/**
* Return a text that represents logLevel.
*/
protected String getLevelText(int logLevel) {
String result;
if (logLevel == Level.DEBUG) {
result = "DEBUG";
}
else if (logLevel == Level.INFO) {
result = "INFO ";
}
else if (logLevel == Level.WARN) {
result = "WARN ";
}
else if (logLevel == Level.ERROR) {
result = "ERROR";
}
else {
throw new IllegalArgumentException(
"logLevel must be one of those defined in net.sf.warplog.Level, but is "
+ logLevel);
}
return result;
}
}