/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.log;
import com.caucho.hemp.services.MailService;
import com.caucho.config.ConfigException;
import com.caucho.config.types.*;
import com.caucho.util.*;
import com.caucho.vfs.*;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.mail.*;
import javax.mail.internet.*;
import javax.management.*;
import java.io.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.logging.Logger;
import java.util.logging.LogRecord;
import java.util.logging.Level;
import java.util.logging.Filter;
import java.util.logging.Formatter;
import java.util.logging.Handler;
/**
* Sends formatted messages to mail
*/
public class MailHandler extends Handler implements AlarmListener
{
private static final Logger log
= Logger.getLogger(MailHandler.class.getName());
private static final L10N L = new L10N(MailHandler.class);
private long _delayTime = 60000L;
private long _timeIntervalMin = 3 * 60 * 60000L;
private long _lastMailTime;
private StringBuilder _text;
private Alarm _alarm;
private MailService _mailService = new MailService();
public MailHandler()
{
_alarm = new Alarm(this);
}
/**
* Sets the delay time, i.e. how long the service should accumulate
* messages before sending them.
*/
public void setDelayTime(Period period)
{
_delayTime = period.getPeriod();
}
/**
* Sets the delay time, i.e. how long the service should accumulate
* messages before sending them.
*/
public void setMailIntervalMin(Period period)
{
_timeIntervalMin = period.getPeriod();
}
/**
* Sets the mail session
*/
public void setMailSession(Session session)
{
_mailService.setSession(session);
}
/**
* Sets a property
*/
public void setProperty(String key, String value)
{
_mailService.setProperty(key, value);
}
/**
* Sets properties
*/
public void setProperties(Properties props)
{
_mailService.setProperties(props);
}
/**
* Adds a 'to'
*/
public void addTo(String to)
throws AddressException
{
_mailService.addTo(new InternetAddress(to));
}
/**
* Initialize the handler
*/
@PostConstruct
public void init()
throws ConfigException
{
_mailService.init();
}
/**
* Publishes the record.
*/
public void publish(LogRecord record)
{
if (! isLoggable(record))
return;
Filter filter = getFilter();
if (filter != null && ! filter.isLoggable(record))
return;
try {
String value;
Formatter formatter = getFormatter();
if (formatter != null)
value = formatter.format(record);
else {
value = record.getMessage();
Throwable thrown = record.getThrown();
if (thrown != null) {
java.io.StringWriter writer = new java.io.StringWriter();
PrintWriter out = new PrintWriter(writer);
thrown.printStackTrace(out);
out.close();
value += "\n" + out;
}
}
boolean isStartAlarm = false;
synchronized (this) {
if (_text == null) {
isStartAlarm = true;
_text = new StringBuilder();
}
_text.append(value).append("\n");
}
if (isStartAlarm) {
long delta = _lastMailTime + _timeIntervalMin - Alarm.getCurrentTime();
if (delta < _delayTime)
delta = _delayTime;
_alarm.queue(delta);
}
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Flushes the buffer.
*/
public void flush()
{
}
public void handleAlarm(Alarm alarm)
{
String text = null;
synchronized (this) {
if (_text != null)
text = _text.toString();
_text = null;
}
_lastMailTime = Alarm.getCurrentTime();
if (text != null)
_mailService.send(text);
}
@PreDestroy()
public void close()
{
String text = null;
synchronized (this) {
if (_text != null)
text = _text.toString();
_text = null;
}
if (text != null)
_mailService.send(text);
}
public String toString()
{
return getClass().getSimpleName() + "[]";
}
}