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https://issues.apache.org/jira/browse/LOGGING-123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dennis Lundberg closed LOGGING-123.
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Resolution: Duplicate
> Add a LogLevel enum with the usual suspects
> (FATAL,ERROR,WARN,INFO,DEBUG,TRACE)
> -------------------------------------------------------------------------------
>
> Key: LOGGING-123
> URL: https://issues.apache.org/jira/browse/LOGGING-123
> Project: Commons Logging
> Issue Type: New Feature
> Environment: N/A
> Reporter: Alexander Pogrebnyak
> Priority: Trivial
> Attachments: LogLevel.java
>
>
> It is sometimes convenient to setup logging level dynamically.
> For example if you implement Command object pattern. Some of the command
> require very detailed in your face logging (say at INFO, or even WARN
> levels), for others DEBUG or even TRACE would do fine.
> With the current methods on Log interface you either have to do it through
> different boolean settings, which quickly lead to a mess.
> More elegant solution is to define a log level object and just examine it
> when doing logging.
> here is the use case
> {code:title=Sample Usage |borderStyle=solid}
> final static Log LOGGER = ...;
> public class Command
> {
> final LogLevel _log_level;
> public Command ( final boolean is_logging_enabled )
> {
> LogLevel log_level = LogLevel.TRACE;
> if ( is_logging_enabled )
> {
> log_level = LogLevel.INFO;
> }
> if ( ! log_level.isEnabledIn( LOGGER ) )
> {
> log_level = null;
> }
> _log_level = log_level;
> }
> public void doCommand ( )
> {
> if ( _log_level != null )
> {
> _log_level.log( LOGGER, "Running command" );
> }
> }
> }
> {code}
> The proposed solution is all done through the inversion of control, so it
> does not require to change a single line in org.apache.commons.logging.Log
> interface, although it might be useful to add these 3 methods:
> boolean isEnabledFor ( final LogLevel level );
> void log ( final LogLevel level, final String message );
> void log ( final LogLevel level, final String message, final Throwable t );
> Attached is a full listing of proposed LogLevel.java
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