/*
* Copyright (c) 1998-2010 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 SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.server.dispatch;
import com.caucho.config.ConfigException;
import com.caucho.config.types.Period;
import com.caucho.util.IntArray;
import com.caucho.util.L10N;
import com.caucho.util.QDate;
import java.util.logging.Logger;
/**
* Configuration for a run-at
*/
public class RunAt {
static L10N L = new L10N(RunAt.class);
private static final Logger log
= Logger.getLogger(RunAt.class.getName());
private QDate _cal = QDate.createLocal();
private long _period = -1;
private IntArray _hourTimes;
private IntArray _minuteTimes;
/**
* Creates a new servlet configuration object.
*/
public RunAt()
{
}
/**
* Adds the text.
*/
public void addText(String runAt)
throws ConfigException
{
configureRunAt(runAt);
}
/**
* Sets the period
*/
public void setPeriod(Period period)
throws ConfigException
{
_period = period.getPeriod();
}
/**
* Returns the next time.
*/
public long getNextTimeout(long now)
{
_cal.setGMTTime(now);
long zone = _cal.getZoneOffset();
if (_period > 0)
return Period.periodEnd(now + zone, _period) - zone;
now = now - now % 60000;
long local = now + zone;
long dayMinutes = (local / 60000) % (24 * 60);
long hourMinutes = dayMinutes % 60;
long nextDelta = Long.MAX_VALUE;
for (int i = 0; _hourTimes != null && i < _hourTimes.size(); i++) {
long time = _hourTimes.get(i);
long delta = (time - dayMinutes + 24 * 60) % (24 * 60);
if (delta == 0)
delta = 24 * 60;
if (delta < nextDelta && delta > 0)
nextDelta = delta;
}
for (int i = 0; _minuteTimes != null && i < _minuteTimes.size(); i++) {
long time = _minuteTimes.get(i);
long delta = (time - hourMinutes + 60) % 60;
if (delta == 0)
delta = 60;
if (delta < nextDelta && delta > 0)
nextDelta = delta;
}
if (nextDelta < Integer.MAX_VALUE)
return now + nextDelta * 60000L;
else
return Long.MAX_VALUE / 2;
}
/**
* Configures the run-at time.
*/
private void configureRunAt(String string)
throws ConfigException
{
int len = string.length();
char ch = 0;
int i = 0;
while (true) {
for (;
i < len &&
(Character.isWhitespace(ch = string.charAt(i)) || ch == ',');
i++) {
}
if (i >= len)
return;
if (! (ch >= '0' && ch <= '9' || ch == ':'))
throw new ConfigException(L.l("illegal run-at time `{0}'. Run-at values are either hour (0:00, 6:30, 12:15) or minute (:15, :30, :45).",
string));
int hour = 0;
int minute = 0;
boolean hasHour = false;
for (; i < len && (ch = string.charAt(i)) >= '0' && ch <= '9'; i++) {
hasHour = true;
hour = 10 * hour + ch - '0';
}
if (ch == ':') {
i++;
for (; i < len && (ch = string.charAt(i)) >= '0' && ch <= '9'; i++)
minute = 10 * minute + ch - '0';
}
if (hasHour) {
if (_hourTimes == null)
_hourTimes = new IntArray();
_hourTimes.add(60 * hour + minute);
}
else {
if (_minuteTimes == null)
_minuteTimes = new IntArray();
_minuteTimes.add(minute);
}
}
}
}