/* sbt -- Simple Build Tool
 * Copyright 2008, 2009, 2010 Mark Harrah
 */
package sbt

/** A filter logger is used to delegate messages but not the logging level to another logger.  This means
* that messages are logged at the higher of the two levels set by this logger and its delegate.
* */
class FilterLogger(delegate: AbstractLogger) extends BasicLogger
{
	override lazy val ansiCodesSupported = delegate.ansiCodesSupported
	def trace(t: => Throwable)
	{
		if(traceEnabled)
			delegate.trace(t)
	}
	override def setSuccessEnabled(flag: Boolean) { delegate.setSuccessEnabled(flag) }
	override def successEnabled = delegate.successEnabled
	override def setTrace(level: Int) { delegate.setTrace(level) }
	override def getTrace = delegate.getTrace 
	def log(level: Level.Value, message: => String)
	{
		if(atLevel(level))
			delegate.log(level, message)
	}
	def success(message: => String)
	{
		if(successEnabled)
			delegate.success(message)
	}
	def control(event: ControlEvent.Value, message: => String)
	{
		if(atLevel(Level.Info))
			delegate.control(event, message)
	}
	def logAll(events: Seq[LogEvent]): Unit = delegate.logAll(events)
}
