CSS Tools can send messages to a JavaMessageServer, from which other CSS tools can then log them to a central relational database (RDB) log, and the or other reporting tools can then analyze them.

Messages include:

• Errors, warnings, info or debug messages from applications
• Communication between components of the alarm system
• 'Write' log from a plugin for EDM

CSS uses JMS the MapMessage type with these mandatory elements:

• TYPE=log, alarm, talk, write, ...

• TYPE=log
• TEXT: Any text, usually the result of Log4j message format
• SEVERITY=DEBUG, INFO, WARN, ERROR, FATAL: Log4j log level
• CREATETIME, format “yyyy-MM-dd HH:mm:ss.SSS”: Time message created
• EVENTTIME, format “yyyy-MM-dd HH:mm:ss.SSS”: Time of original event
• CLASS: Name of (Java) class were message was created
• NAME: Name of Java method
• FILENAME: Source file
• APPLICATION_ID: Application (CSS, AlarmServer, ..)
• HOST: Host name running the application
• USER: User name

See https://ics-web.sns.ornl.gov/css/docs/MessageLog.doc