/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2009, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package ch.qos.logback.core.rolling;
import java.io.File;
import java.util.Date;
import ch.qos.logback.core.rolling.helper.ArchiveRemover;
import ch.qos.logback.core.rolling.helper.DateTokenConverter;
import ch.qos.logback.core.rolling.helper.RollingCalendar;
import ch.qos.logback.core.spi.ContextAwareBase;
abstract public class TimeBasedFileNamingAndTriggeringPolicyBase<E> extends
ContextAwareBase implements TimeBasedFileNamingAndTriggeringPolicy<E> {
protected TimeBasedRollingPolicy<E> tbrp;
protected ArchiveRemover archiveRemover = null;
protected String elapsedPeriodsFileName;
protected RollingCalendar rc;
protected long currentTime;
// indicate whether the time has been forced or not
protected boolean isTimeForced = false;
protected Date dateInCurrentPeriod = null;
protected long nextCheck;
protected boolean started = false;
public boolean isStarted() {
return started;
}
public void start() {
DateTokenConverter dtc = tbrp.fileNamePattern.getDateTokenConverter();
if (dtc == null) {
throw new IllegalStateException("FileNamePattern ["
+ tbrp.fileNamePattern.getPattern()
+ "] does not contain a valid DateToken");
}
rc = new RollingCalendar();
rc.init(dtc.getDatePattern());
addInfo("The date pattern is '" + dtc.getDatePattern()
+ "' from file name pattern '" + tbrp.fileNamePattern.getPattern()
+ "'.");
rc.printPeriodicity(this);
if (dateInCurrentPeriod == null) {
setDateInCurrentPeriod(new Date(getCurrentTime()));
if (tbrp.getParentsRawFileProperty() != null) {
File currentFile = new File(tbrp.getParentsRawFileProperty());
if (currentFile.exists() && currentFile.canRead()) {
setDateInCurrentPeriod(new Date(currentFile.lastModified()));
}
}
}
computeNextCheck();
}
public void stop() {
started = false;
}
protected void computeNextCheck() {
nextCheck = rc.getNextTriggeringMillis(dateInCurrentPeriod);
}
protected void setDateInCurrentPeriod(long now) {
dateInCurrentPeriod.setTime(now);
}
// allow Test classes to act on the dateInCurrentPeriod field to simulate old
// log files needing rollover
public void setDateInCurrentPeriod(Date _dateInCurrentPeriod) {
this.dateInCurrentPeriod = _dateInCurrentPeriod;
}
public Date getDateInCurrentPeriod() {
return dateInCurrentPeriod;
}
public String getElapsedPeriodsFileName() {
return elapsedPeriodsFileName;
}
public String getCurrentPeriodsFileNameWithoutCompressionSuffix() {
return tbrp.fileNamePatternWCS.convert(dateInCurrentPeriod);
}
public void setCurrentTime(long timeInMillis) {
currentTime = timeInMillis;
isTimeForced = true;
}
public long getCurrentTime() {
// if time is forced return the time set by user
if (isTimeForced) {
return currentTime;
} else {
return System.currentTimeMillis();
}
}
public void setTimeBasedRollingPolicy(TimeBasedRollingPolicy<E> _tbrp) {
this.tbrp = _tbrp;
}
public ArchiveRemover getArchiveRemover() {
return archiveRemover;
}
}