edu.stanford.nlp.util.logging
Class RepeatedRecordHandler

java.lang.Object
  edu.stanford.nlp.util.logging.LogRecordHandler
      edu.stanford.nlp.util.logging.RepeatedRecordHandler

public class RepeatedRecordHandler
extends LogRecordHandler

Filters repeated messages and replaces them with the number of times they were logged.

Author:

David McClosky,, Gabor Angeli (angeli at cs.stanford): approximate record equality, repeated tracks squashed

Nested Class Summary

static class	RepeatedRecordHandler.ApproximateRepeatSemantics Judges two records to be equal if they come from the same place, and begin with the same string, modulo numbers
static class	RepeatedRecordHandler.ExactRepeatSemantics Judges two records to be equal if they are from the same place, and have the same message
static interface	RepeatedRecordHandler.RepeatSemantics Determines the semantics of what constitutes a repeated record

Field Summary

static RepeatedRecordHandler.ApproximateRepeatSemantics	APPROXIMATE
static RepeatedRecordHandler.ExactRepeatSemantics	EXACT

Fields inherited from class edu.stanford.nlp.util.logging.LogRecordHandler

EMPTY

Constructor Summary

RepeatedRecordHandler(RepeatedRecordHandler.RepeatSemantics repeatSemantics)
Create a new repeated log message handler, using the given semantics for what constitutes a repeated record.

Method Summary

java.util.List<Redwood.Record>	handle(Redwood.Record record) Handle a log Record, either as a filter or by producing a side effect.
java.util.List<Redwood.Record>	signalEndTrack(int newDepth, long timeEnded) Signal the end of a track, i.e.
java.util.List<Redwood.Record>	signalShutdown()
java.util.List<Redwood.Record>	signalStartTrack(Redwood.Record signal) Signal the start of a track, i.e.

Methods inherited from class java.lang.Object

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

Field Detail

APPROXIMATE

public static RepeatedRecordHandler.ApproximateRepeatSemantics APPROXIMATE

EXACT

public static RepeatedRecordHandler.ExactRepeatSemantics EXACT

Constructor Detail

RepeatedRecordHandler

public RepeatedRecordHandler(RepeatedRecordHandler.RepeatSemantics repeatSemantics)

Create a new repeated log message handler, using the given semantics for what constitutes a repeated record.

Parameters:

repeatSemantics - The semantics for what constitutes a repeated record

Method Detail

handle

public java.util.List<Redwood.Record> handle(Redwood.Record record)

Handle a log Record, either as a filter or by producing a side effect.

Specified by:

handle in class LogRecordHandler

Parameters:

record - The log record to handle

Returns:

a (possibly empty) list of records to be sent on in the pipeline

signalStartTrack

public java.util.List<Redwood.Record> signalStartTrack(Redwood.Record signal)

Signal the start of a track, i.e. that we have descended a level deeper.

Overrides:

signalStartTrack in class LogRecordHandler

Parameters:

signal - A record corresponding to the information in the track header. The depth in this object is the old log depth.

Returns:

A list of records to pass down the pipeline, not including the startTrack() signal. The returned records are passed to handle(), not startTrack(), and are sent before the startTrack() signal.

signalEndTrack

public java.util.List<Redwood.Record> signalEndTrack(int newDepth,
                                                     long timeEnded)

Signal the end of a track, i.e. that we have popped up to a higher level.

Overrides:

signalEndTrack in class LogRecordHandler

Parameters:

newDepth - The new depth; that is, the current depth - 1.

Returns:

A list of records to pass down the pipeline. The returned records are passed to handle(), not endTrack(). and are sent before the startTrack() signal.

signalShutdown

public java.util.List<Redwood.Record> signalShutdown()

Overrides:

signalShutdown in class LogRecordHandler