ch.qos.logback.classic.pattern.SequenceNumberConverter 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.pattern;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.CoreConstants;
/**
* Return the event's sequence number.
*
* @author Bertrand Renuart
* @since 1.3.0
*/
public class SequenceNumberConverter extends ClassicConverter {
@Override
public void start() {
if(getContext() == null) {
// this should not happen
return;
}
if (getContext().getSequenceNumberGenerator() == null) {
addWarn("It looks like no was defined in Logback configuration.");
}
super.start();
}
@Override
public String convert(ILoggingEvent event) {
return Long.toString(event.getSequenceNumber());
}
}