/*
* 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 Sam
*/
package com.caucho.rewrite;
import com.caucho.config.ConfigException;
import com.caucho.config.Configurable;
import com.caucho.config.types.CronType;
import com.caucho.util.Alarm;
import com.caucho.util.L10N;
import javax.servlet.http.HttpServletRequest;
import javax.annotation.PostConstruct;
/**
* Match if the request occurs during enabled times.
*
* <pre>
* <resin:Allow url-pattern="/admin/*">
* xmlns:resin="urn:java:com.caucho.resin">
* <resin:IfCron>
* <enable-at>* 8 * * *</enable-at>
* <disable-at>* 16 * * *</disable-at>
* </resin:IfCron>
* </resin:Allow>
* </pre>
*
* <p>RequestPredicates may be used for security and rewrite actions.
*/
@Configurable
public class IfCron implements RequestPredicate
{
private static final L10N L = new L10N(IfCron.class);
private CronType _enableAt;
private CronType _disableAt;
/**
* Sets the cron enable times.
*/
@Configurable
public void setEnableAt(CronType enableAt)
{
_enableAt = enableAt;
}
/**
* Sets the cron disable times.
*/
@Configurable
public void setDisableAt(CronType disableAt)
{
_disableAt = disableAt;
}
@PostConstruct
public void init()
{
if (_enableAt == null)
throw new ConfigException(L.l("{0} requires 'enable-at' attribute",
getClass().getSimpleName()));
if (_disableAt == null)
throw new ConfigException(L.l("{0} requires 'disable-at' attribute",
getClass().getSimpleName()));
}
/**
* True if the predicate matches.
*
* @param request the servlet request to test
*/
@Override
public boolean isMatch(HttpServletRequest request)
{
long now = Alarm.getCurrentTime();
long prevEnable = _enableAt.prevTime(now);
long prevDisable = _disableAt.prevTime(now);
return prevEnable > 0 && prevDisable <= prevEnable;
}
}