[MAHOUT-1716] Scala logging style

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.10.2
• Assignee: Dmitriy Lyubimov
• Reporter: Dmitriy Lyubimov
• Created: 02/Jun/15 23:03
• Updated: 07/Aug/15 15:56
• Resolved: 17/Jun/15 19:01

Description

Enable concise logging e.g.

trace(s"blha blah $variable") and
traceDo {
...
}

note that since parameter has really late binding type (message : => String), the debug string is never computed unless the proper debug level is enabled.

PR https://github.com/apache/mahout/pull/135