com.greenpepper.internal.ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP Maven / Gradle / Ivy
/**
* 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 com.greenpepper.internal.com.greenpepper.internal.ch.qos.logback.core.rolling;
import java.io.File;
import java.util.Date;
import com.greenpepper.internal.com.greenpepper.internal.ch.qos.logback.core.joran.spi.NoAutoStart;
import com.greenpepper.internal.com.greenpepper.internal.ch.qos.logback.core.rolling.helper.ArchiveRemover;
import com.greenpepper.internal.com.greenpepper.internal.ch.qos.logback.core.rolling.helper.CompressionMode;
import com.greenpepper.internal.com.greenpepper.internal.ch.qos.logback.core.rolling.helper.FileFilterUtil;
import com.greenpepper.internal.com.greenpepper.internal.ch.qos.logback.core.rolling.helper.SizeAndTimeBasedArchiveRemover;
import com.greenpepper.internal.com.greenpepper.internal.ch.qos.logback.core.util.FileSize;
@NoAutoStart
public class SizeAndTimeBasedFNATP extends
TimeBasedFileNamingAndTriggeringPolicyBase {
int currentPeriodsCounter = 0;
FileSize maxFileSize;
String maxFileSizeAsString;
@Override
public void start() {
// we depend on certain fields having been initialized
// in super.start()
super.start();
archiveRemover = createArchiveRemover();
archiveRemover.setContext(context);
// we need to get the correct value of currentPeriodsCounter.
// usually the value is 0, unless the appender or the application
// is stopped and restarted within the same period
String regex = tbrp.fileNamePattern.toRegexForFixedDate(dateInCurrentPeriod);
String stemRegex = FileFilterUtil.afterLastSlash(regex);
computeCurrentPeriodsHighestCounterValue(stemRegex);
started = true;
}
protected ArchiveRemover createArchiveRemover() {
return new SizeAndTimeBasedArchiveRemover(tbrp.fileNamePattern, rc);
}
void computeCurrentPeriodsHighestCounterValue(final String stemRegex) {
File file = new File(getCurrentPeriodsFileNameWithoutCompressionSuffix());
File parentDir = file.getParentFile();
File[] matchingFileArray = FileFilterUtil
.filesInFolderMatchingStemRegex(parentDir, stemRegex);
if (matchingFileArray == null || matchingFileArray.length == 0) {
currentPeriodsCounter = 0;
return;
}
currentPeriodsCounter = FileFilterUtil.findHighestCounter(matchingFileArray, stemRegex);
// if parent raw file property is not null, then the next
// counter is max found counter+1
if (tbrp.getParentsRawFileProperty() != null || (tbrp.compressionMode != CompressionMode.NONE)) {
// TODO test me
currentPeriodsCounter++;
}
}
// IMPORTANT: This field can be updated by multiple threads. It follows that
// its values may *not* be incremented sequentially. However, we don't care
// about the actual value of the field except that from time to time the
// expression (invocationCounter++ & invocationMask) == invocationMask) should be true.
private int invocationCounter;
private int invocationMask = 0x1;
public boolean isTriggeringEvent(File activeFile, final E event) {
long time = getCurrentTime();
if (time >= nextCheck) {
Date dateInElapsedPeriod = dateInCurrentPeriod;
elapsedPeriodsFileName = tbrp.fileNamePatternWCS
.convertMultipleArguments(dateInElapsedPeriod, currentPeriodsCounter);
currentPeriodsCounter = 0;
setDateInCurrentPeriod(time);
computeNextCheck();
return true;
}
// for performance reasons, check for changes every 16,invocationMask invocations
if (((++invocationCounter) & invocationMask) != invocationMask) {
return false;
}
if (invocationMask < 0x0F) {
invocationMask = (invocationMask << 1) + 1;
}
if (activeFile.length() >= maxFileSize.getSize()) {
elapsedPeriodsFileName = tbrp.fileNamePatternWCS
.convertMultipleArguments(dateInCurrentPeriod, currentPeriodsCounter);
currentPeriodsCounter++;
return true;
}
return false;
}
private String getFileNameIncludingCompressionSuffix(Date date, int counter) {
return tbrp.fileNamePattern.convertMultipleArguments(
dateInCurrentPeriod, counter);
}
@Override
public String getCurrentPeriodsFileNameWithoutCompressionSuffix() {
return tbrp.fileNamePatternWCS.convertMultipleArguments(
dateInCurrentPeriod, currentPeriodsCounter);
}
public String getMaxFileSize() {
return maxFileSizeAsString;
}
public void setMaxFileSize(String maxFileSize) {
this.maxFileSizeAsString = maxFileSize;
this.maxFileSize = FileSize.valueOf(maxFileSize);
}
}