ch.qos.logback.classic.sift.ContextBasedDiscriminator 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.sift;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.sift.AbstractDiscriminator;
/**
* This discriminator returns the value context to which this event is attached
* to. If the said value is null, then a default value is returned.
*
*
* Both Key and the DefaultValue are user specified properties.
*
* @author Ceki Gülcü
*
*/
public class ContextBasedDiscriminator extends AbstractDiscriminator {
private static final String KEY = "contextName";
private String defaultValue;
/**
* Return the name of the current context name as found in the logging event.
*/
public String getDiscriminatingValue(ILoggingEvent event) {
String contextName = event.getLoggerContextVO().getName();
if (contextName == null) {
return defaultValue;
} else {
return contextName;
}
}
public String getKey() {
return KEY;
}
public void setKey(String key) {
throw new UnsupportedOperationException("Key cannot be set. Using fixed key " + KEY);
}
/**
* @see #setDefaultValue(String)
* @return
*/
public String getDefaultValue() {
return defaultValue;
}
/**
* The default context name in case the context name is not set for the current
* logging event.
*
* @param defaultValue
*/
public void setDefaultValue(String defaultValue) {
this.defaultValue = defaultValue;
}
}