1 package org.kuali.common.util.log4j.model; 2 3 /** 4 * @deprecated 5 */ 6 @Deprecated 7 public enum Value { 8 9 ALL, TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF, NULL; 10 // Log4j only supports "null" (lowercase) as a text value inside log4j.xml 11 // "NULL" (uppercase) is not supported and causes log4j to emit a WARN level logging message as an unknown level. 12 // The best solution would be to get log4j to recognize "NULL" as a synonym for "null" 13 // Failing that, another solution would be to get JAXB to translate "NULL" to "null" and vice versa when writing/reading xml. 14 // What happens at the moment, is we detect "NULL" and set it to null when creating xml from an object. 15 // This causes JAXB to omit the "value" attribute entirely from the xml. 16 // When going the other way (ie creating an object from xml) "NULL" is the default value if the "value" attribute is not present. 17 // Thus we have a method that works in both directions for dealing with "NULL" vs "null" 18 // Granted, this is a tad bit crazy and supremely brittle... 19 20 }