ch.qos.logback.core.rolling.TimeBasedRollingPolicy Maven / Gradle / Ivy
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/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2015, 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 static ch.qos.logback.core.CoreConstants.UNBOUND_HISTORY;
import static ch.qos.logback.core.CoreConstants.UNBOUNDED_TOTAL_SIZE_CAP;
import java.io.File;
import java.util.Date;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import ch.qos.logback.core.CoreConstants;
import ch.qos.logback.core.rolling.helper.ArchiveRemover;
import ch.qos.logback.core.rolling.helper.CompressionMode;
import ch.qos.logback.core.rolling.helper.Compressor;
import ch.qos.logback.core.rolling.helper.FileFilterUtil;
import ch.qos.logback.core.rolling.helper.FileNamePattern;
import ch.qos.logback.core.rolling.helper.RenameUtil;
import ch.qos.logback.core.util.FileSize;
/**
* TimeBasedRollingPolicy is both easy to configure and quite
* powerful. It allows the roll over to be made based on time. It is possible to
* specify that the roll over occur once per day, per week or per month.
*
* For more information, please refer to the online manual at
* http://logback.qos.ch/manual/appenders.html#TimeBasedRollingPolicy
*
* @author Ceki Gülcü
*/
public class TimeBasedRollingPolicy extends RollingPolicyBase implements TriggeringPolicy {
static final String FNP_NOT_SET = "The FileNamePattern option must be set before using TimeBasedRollingPolicy. ";
// WCS: without compression suffix
FileNamePattern fileNamePatternWithoutCompSuffix;
private Compressor compressor;
private RenameUtil renameUtil = new RenameUtil();
Future compressionFuture;
Future cleanUpFuture;
private int maxHistory = UNBOUND_HISTORY;
protected FileSize totalSizeCap = new FileSize(UNBOUNDED_TOTAL_SIZE_CAP);
private ArchiveRemover archiveRemover;
TimeBasedFileNamingAndTriggeringPolicy timeBasedFileNamingAndTriggeringPolicy;
boolean cleanHistoryOnStart = false;
public void start() {
// set the LR for our utility object
renameUtil.setContext(this.context);
// find out period from the filename pattern
if (fileNamePatternStr != null) {
fileNamePattern = new FileNamePattern(fileNamePatternStr, this.context);
determineCompressionMode();
} else {
addWarn(FNP_NOT_SET);
addWarn(CoreConstants.SEE_FNP_NOT_SET);
throw new IllegalStateException(FNP_NOT_SET + CoreConstants.SEE_FNP_NOT_SET);
}
compressor = new Compressor(compressionMode);
compressor.setContext(context);
// wcs : without compression suffix
fileNamePatternWithoutCompSuffix = new FileNamePattern(Compressor.computeFileNameStrWithoutCompSuffix(fileNamePatternStr, compressionMode), this.context);
addInfo("Will use the pattern " + fileNamePatternWithoutCompSuffix + " for the active file");
if (compressionMode == CompressionMode.ZIP) {
String zipEntryFileNamePatternStr = transformFileNamePattern2ZipEntry(fileNamePatternStr);
zipEntryFileNamePattern = new FileNamePattern(zipEntryFileNamePatternStr, context);
}
if (timeBasedFileNamingAndTriggeringPolicy == null) {
timeBasedFileNamingAndTriggeringPolicy = new DefaultTimeBasedFileNamingAndTriggeringPolicy();
}
timeBasedFileNamingAndTriggeringPolicy.setContext(context);
timeBasedFileNamingAndTriggeringPolicy.setTimeBasedRollingPolicy(this);
timeBasedFileNamingAndTriggeringPolicy.start();
if (!timeBasedFileNamingAndTriggeringPolicy.isStarted()) {
addWarn("Subcomponent did not start. TimeBasedRollingPolicy will not start.");
return;
}
// the maxHistory property is given to TimeBasedRollingPolicy instead of to
// the TimeBasedFileNamingAndTriggeringPolicy. This makes it more convenient
// for the user at the cost of inconsistency here.
if (maxHistory != UNBOUND_HISTORY) {
archiveRemover = timeBasedFileNamingAndTriggeringPolicy.getArchiveRemover();
archiveRemover.setMaxHistory(maxHistory);
archiveRemover.setTotalSizeCap(totalSizeCap.getSize());
if (cleanHistoryOnStart) {
addInfo("Cleaning on start up");
Date now = new Date(timeBasedFileNamingAndTriggeringPolicy.getCurrentTime());
cleanUpFuture = archiveRemover.cleanAsynchronously(now);
}
} else if (!isUnboundedTotalSizeCap()) {
addWarn("'maxHistory' is not set, ignoring 'totalSizeCap' option with value ["+totalSizeCap+"]");
}
super.start();
}
protected boolean isUnboundedTotalSizeCap() {
return totalSizeCap.getSize() == UNBOUNDED_TOTAL_SIZE_CAP;
}
@Override
public void stop() {
if (!isStarted())
return;
waitForAsynchronousJobToStop(compressionFuture, "compression");
waitForAsynchronousJobToStop(cleanUpFuture, "clean-up");
super.stop();
}
private void waitForAsynchronousJobToStop(Future aFuture, String jobDescription) {
if (aFuture != null) {
try {
aFuture.get(CoreConstants.SECONDS_TO_WAIT_FOR_COMPRESSION_JOBS, TimeUnit.SECONDS);
} catch (TimeoutException e) {
addError("Timeout while waiting for " + jobDescription + " job to finish", e);
} catch (Exception e) {
addError("Unexpected exception while waiting for " + jobDescription + " job to finish", e);
}
}
}
private String transformFileNamePattern2ZipEntry(String fileNamePatternStr) {
String slashified = FileFilterUtil.slashify(fileNamePatternStr);
return FileFilterUtil.afterLastSlash(slashified);
}
public void setTimeBasedFileNamingAndTriggeringPolicy(TimeBasedFileNamingAndTriggeringPolicy timeBasedTriggering) {
this.timeBasedFileNamingAndTriggeringPolicy = timeBasedTriggering;
}
public TimeBasedFileNamingAndTriggeringPolicy getTimeBasedFileNamingAndTriggeringPolicy() {
return timeBasedFileNamingAndTriggeringPolicy;
}
public void rollover() throws RolloverFailure {
// when rollover is called the elapsed period's file has
// been already closed. This is a working assumption of this method.
String elapsedPeriodsFileName = timeBasedFileNamingAndTriggeringPolicy.getElapsedPeriodsFileName();
String elapsedPeriodStem = FileFilterUtil.afterLastSlash(elapsedPeriodsFileName);
if (compressionMode == CompressionMode.NONE) {
if (getParentsRawFileProperty() != null) {
renameUtil.rename(getParentsRawFileProperty(), elapsedPeriodsFileName);
} // else { nothing to do if CompressionMode == NONE and parentsRawFileProperty == null }
} else {
if (getParentsRawFileProperty() == null) {
compressionFuture = compressor.asyncCompress(elapsedPeriodsFileName, elapsedPeriodsFileName, elapsedPeriodStem);
} else {
compressionFuture = renameRawAndAsyncCompress(elapsedPeriodsFileName, elapsedPeriodStem);
}
}
if (archiveRemover != null) {
Date now = new Date(timeBasedFileNamingAndTriggeringPolicy.getCurrentTime());
this.cleanUpFuture = archiveRemover.cleanAsynchronously(now);
}
}
Future renameRawAndAsyncCompress(String nameOfCompressedFile, String innerEntryName) throws RolloverFailure {
String parentsRawFile = getParentsRawFileProperty();
String tmpTarget = nameOfCompressedFile + System.nanoTime() + ".tmp";
renameUtil.rename(parentsRawFile, tmpTarget);
return compressor.asyncCompress(tmpTarget, nameOfCompressedFile, innerEntryName);
}
/**
*
* The active log file is determined by the value of the parent's filename
* option. However, in case the file name is left blank, then, the active log
* file equals the file name for the current period as computed by the
* FileNamePattern option.
*
* The RollingPolicy must know whether it is responsible for changing the
* name of the active file or not. If the active file name is set by the user
* via the configuration file, then the RollingPolicy must let it like it is.
* If the user does not specify an active file name, then the RollingPolicy
* generates one.
*
*
To be sure that the file name used by the parent class has been
* generated by the RollingPolicy and not specified by the user, we keep track
* of the last generated name object and compare its reference to the parent
* file name. If they match, then the RollingPolicy knows it's responsible for
* the change of the file name.
*
*/
public String getActiveFileName() {
String parentsRawFileProperty = getParentsRawFileProperty();
if (parentsRawFileProperty != null) {
return parentsRawFileProperty;
} else {
return timeBasedFileNamingAndTriggeringPolicy.getCurrentPeriodsFileNameWithoutCompressionSuffix();
}
}
public boolean isTriggeringEvent(File activeFile, final E event) {
return timeBasedFileNamingAndTriggeringPolicy.isTriggeringEvent(activeFile, event);
}
/**
* Get the number of archive files to keep.
*
* @return number of archive files to keep
*/
public int getMaxHistory() {
return maxHistory;
}
/**
* Set the maximum number of archive files to keep.
*
* @param maxHistory
* number of archive files to keep
*/
public void setMaxHistory(int maxHistory) {
this.maxHistory = maxHistory;
}
public boolean isCleanHistoryOnStart() {
return cleanHistoryOnStart;
}
/**
* Should archive removal be attempted on application start up? Default is false.
* @since 1.0.1
* @param cleanHistoryOnStart
*/
public void setCleanHistoryOnStart(boolean cleanHistoryOnStart) {
this.cleanHistoryOnStart = cleanHistoryOnStart;
}
@Override
public String toString() {
return "c.q.l.core.rolling.TimeBasedRollingPolicy@"+this.hashCode();
}
public void setTotalSizeCap(FileSize totalSizeCap) {
addInfo("setting totalSizeCap to "+totalSizeCap.toString());
this.totalSizeCap = totalSizeCap;
}
}