/* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* <p/>
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.rzo.yajsw.log;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.logging.FileHandler;
import java.util.logging.Formatter;
import java.util.logging.Handler;
import java.util.logging.LogRecord;
// TODO: Auto-generated Javadoc
/**
* The Class DateFileHandler.
*/
public class DateFileHandler extends Handler
{
/** The _handler. */
volatile FileHandler _handler;
/** The _end date. */
volatile long _endDate;
/** The _pattern. */
volatile String _pattern;
/** The _limit. */
volatile int _limit;
/** The _count. */
volatile int _count;
/** The _append. */
volatile boolean _append;
/** The format. */
final SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
/** The _init. */
volatile boolean _init = false;
volatile long _startDate = System.currentTimeMillis();
/**
* Instantiates a new date file handler.
*
* @param pattern
* the pattern
* @param limit
* the limit
* @param count
* the count
* @param append
* the append
*
* @throws IOException
* Signals that an I/O exception has occurred.
* @throws SecurityException
* the security exception
*/
public DateFileHandler(String pattern, int limit, int count, boolean append) throws IOException, SecurityException
{
_pattern = pattern;
_limit = limit;
_count = count;
_append = append;
rotateDate();
_init = true;
}
/*
* (non-Javadoc)
*
* @see java.util.logging.Handler#close()
*/
@Override
public void close() throws SecurityException
{
_handler.close();
}
/*
* (non-Javadoc)
*
* @see java.util.logging.Handler#flush()
*/
@Override
public void flush()
{
_handler.flush();
}
/*
* (non-Javadoc)
*
* @see java.util.logging.Handler#publish(java.util.logging.LogRecord)
*/
@Override
public void publish(LogRecord record)
{
if (_endDate < record.getMillis())
rotateDate();
if (System.currentTimeMillis() - _startDate > 25*60*60*1000)
{
String msg = record.getMessage();
record.setMessage("missed file rolling at: "+new Date(_endDate)+"\n"+msg);
}
_handler.publish(record);
}
/*
* (non-Javadoc)
*
* @see java.util.logging.Handler#setFormatter(java.util.logging.Formatter)
*/
@Override
public void setFormatter(Formatter newFormatter)
{
super.setFormatter(newFormatter);
if (_handler != null)
_handler.setFormatter(newFormatter);
}
/**
* Rotate date.
*/
private void rotateDate()
{
_startDate = System.currentTimeMillis();
if (_handler != null)
_handler.close();
String pattern = _pattern.replace("%d", format.format(new Date()));
Calendar next = Calendar.getInstance(); // current date
// begin of next date
next.set(Calendar.HOUR, 0);
next.set(Calendar.MINUTE, 0);
next.set(Calendar.SECOND, 0);
next.set(Calendar.MILLISECOND, 0);
next.add(Calendar.DATE, 1);
_endDate = next.getTimeInMillis();
try
{
_handler = new FileHandler(pattern, _limit, _count, _append);
if (_init)
{
_handler.setEncoding(this.getEncoding());
_handler.setErrorManager(this.getErrorManager());
_handler.setFilter(this.getFilter());
_handler.setFormatter(this.getFormatter());
_handler.setLevel(this.getLevel());
}
}
catch (SecurityException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}