Logback: the reliable, generic, fast and flexible logging framework.
Copyright (C) 1999-2011, 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.
This discriminator returns the value context as determined by JNDI. If the
said value is null, then a default value is returned.
Both Key and the DefaultValue are user specified properties.
private static final String KEY = "contextName";
Return the name of the current context name as found in the logging event.
"Key cannot be set. Using fixed key " + KEY);
The default context name in case the context name is not set for the
current logging event.