org.carrot2.core
Class ControllerStatistics

java.lang.Object
  org.carrot2.core.ControllerStatistics

public final class ControllerStatistics
extends Object

Provides some statistics about processing performed in a Controller.

Field Summary

double	algorithmTimeAverageInWindow Average clustering time measured within the algorithmTimeWindowSize.
long	algorithmTimeMeasurementsInWindow Number of algorithm time measurements within the algorithmTimeWindowSize.
long	algorithmTimeWindowSize Clustering average time measurement window, in milliseconds.
Long	cacheHitsDisk Number of requests served from on-disk cache.
Long	cacheHitsMemory Number of requests served from in-memory cache.
Long	cacheHitsTotal Number of requests served from cache.
Long	cacheMisses Number of requests that generated cache misses.
long	goodQueries Number of queries handled without an exception.
double	sourceTimeAverageInWindow Average document source processing time measured within the sourceTimeWindowSize.
long	sourceTimeMeasurementsInWindow Number of document source processing time measurements within the sourceTimeWindowSize.
long	sourceTimeWindowSize Document source average processing time measurement window, in milliseconds.
long	totalQueries Total number of queries handled, including queries resulting in an exception.
double	totalTimeAverageInWindow Average total processing time measured within the totalTimeWindowSize.
long	totalTimeMeasurementsInWindow Number of total processing time measurements within the totalTimeWindowSize.
long	totalTimeWindowSize Total average processing time measurement window, in milliseconds.

Method Summary

void	serialize(OutputStream stream) Serializes this statistics object as XML stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

totalQueries

public final long totalQueries

Total number of queries handled, including queries resulting in an exception.

goodQueries

public final long goodQueries

Number of queries handled without an exception.

algorithmTimeAverageInWindow

public final double algorithmTimeAverageInWindow

Average clustering time measured within the algorithmTimeWindowSize.

algorithmTimeMeasurementsInWindow

public final long algorithmTimeMeasurementsInWindow

Number of algorithm time measurements within the algorithmTimeWindowSize.

algorithmTimeWindowSize

public final long algorithmTimeWindowSize

Clustering average time measurement window, in milliseconds.

sourceTimeAverageInWindow

public final double sourceTimeAverageInWindow

Average document source processing time measured within the sourceTimeWindowSize.

sourceTimeMeasurementsInWindow

public final long sourceTimeMeasurementsInWindow

Number of document source processing time measurements within the sourceTimeWindowSize.

sourceTimeWindowSize

public final long sourceTimeWindowSize

Document source average processing time measurement window, in milliseconds.

totalTimeAverageInWindow

public final double totalTimeAverageInWindow

Average total processing time measured within the totalTimeWindowSize.

totalTimeMeasurementsInWindow

public final long totalTimeMeasurementsInWindow

Number of total processing time measurements within the totalTimeWindowSize.

totalTimeWindowSize

public final long totalTimeWindowSize

Total average processing time measurement window, in milliseconds.

cacheMisses

public final Long cacheMisses

Number of requests that generated cache misses. May be null if the controller does not perform caching.

cacheHitsTotal

public final Long cacheHitsTotal

Number of requests served from cache. May be null if the controller does not perform caching.

cacheHitsMemory

public final Long cacheHitsMemory

Number of requests served from in-memory cache. May be null if the controller does not perform caching.

cacheHitsDisk

public final Long cacheHitsDisk

Number of requests served from on-disk cache. May be null if the controller does not perform caching.

Method Detail

serialize

public void serialize(OutputStream stream)
               throws Exception

Serializes this statistics object as XML stream.

Throws:

Exception