ch.qos.logback.classic.turbo.DuplicateMessageFilter 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 ch.qos.logback.classic.turbo;
import org.slf4j.Marker;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.core.spi.FilterReply;
/**
*
* See {@link http://logback.qos.ch/manual/filters.html#DuplicateMessageFilter}
* for details.
*
* @author Ceki Gulcu
*
*/
public class DuplicateMessageFilter extends TurboFilter {
/**
* The default cache size.
*/
public static final int DEFAULT_CACHE_SIZE = 100;
/**
* The default number of allows repetitions.
*/
public static final int DEFAULT_ALLOWED_REPETITIONS = 5;
public int allowedRepetitions = DEFAULT_ALLOWED_REPETITIONS;
public int cacheSize = DEFAULT_CACHE_SIZE;
private LRUMessageCache msgCache;
@Override
public void start() {
msgCache = new LRUMessageCache(cacheSize);
super.start();
}
@Override
public void stop() {
msgCache.clear();
msgCache = null;
super.stop();
}
@Override
public FilterReply decide(Marker marker, Logger logger, Level level, String format, Object[] params, Throwable t) {
int count = msgCache.getMessageCountAndThenIncrement(format);
if (count <= allowedRepetitions) {
return FilterReply.NEUTRAL;
} else {
return FilterReply.DENY;
}
}
public int getAllowedRepetitions() {
return allowedRepetitions;
}
/**
* The allowed number of repetitions before
*
* @param allowedRepetitions
*/
public void setAllowedRepetitions(int allowedRepetitions) {
this.allowedRepetitions = allowedRepetitions;
}
public int getCacheSize() {
return cacheSize;
}
public void setCacheSize(int cacheSize) {
this.cacheSize = cacheSize;
}
}