Module com.microsoft.gctoolkit.parser

Package com.microsoft.gctoolkit.parser

Class GCLogParser

java.lang.Object

com.microsoft.gctoolkit.parser.GCLogParser

All Implemented Interfaces:

ChannelListener<String>, DataSourceChannelListener, DataSourceParser, GenericTokens, PreUnifiedTokens, SharedPatterns

Direct Known Subclasses:

PreUnifiedGCLogParser, ShenandoahParser, UnifiedG1GCParser, UnifiedGenerationalParser, UnifiedJVMEventParser, UnifiedSurvivorMemoryPoolParser, ZGCParser

public abstract class GCLogParser
extends Object
implements DataSourceParser, SharedPatterns

Field Summary

Fields

Modifier and Type	Field	Description
protected Diary	diary
static String	END_OF_DATA_SENTINEL
static GCParseRule	GCID_COUNTER

Fields inherited from interface com.microsoft.gctoolkit.parser.GenericTokens

BEFORE_AFTER_CONFIGURED, BEFORE_AFTER_CONFIGURED_PAUSE, BEFORE_CONFIGURED_AFTER_CONFIGURED, BYTES, CHURN, CONCURRENT_TIME, COUNTER, CPU_SUMMARY, DATE, DECIMAL_POINT, DURATION_MS, GC_CAUSE, HEX, INT, INTEGER, MEMORY_SIZE, META_RECORD, OCCUPANCY_CONFIGURED, OCCUPANCY_CONFIGURED_PAUSE, PAUSE_TIME, PERCENTAGE, REAL_NUMBER, REAL_VALUE, SAFE_POINT_CAUSE, TIME, UNITS

Fields inherited from interface com.microsoft.gctoolkit.parser.PreUnifiedTokens

CLASSPACE_FINAL, CPU_BREAKDOWN, DATE_STAMP, DATE_TIMESTAMP, DATE_TIMESTAMP_RECORD, FINAL_REFERENCE, FRACTIONAL_BEFORE_AFTER_CONFIGURED, FRACTIONAL_MEMORY_SIZE, FULL_GC_PREFIX, GC_PREFIX, JNI_REFERENCE, JNI_REFERENCE_PROCESSING, MEMORY_ADDRESS, MEMORY_POOL_BOUNDS, META_PERM_MEMORY_SUMMARY, METASPACE_FINAL, MS_TIME_STAMP, PERM_RECORD, PHANTOM_REFERENCE, PHANTOM_REFERENCE_PROCESSING, PLAB, PLAB_RECORD, PRECLEAN_REFERENCE_PROCESSING, PRECLEAN_REFERENCE_RECORDS, REFERENCE_PROCESSING_BLOCK, REFERENCE_RECORDS, SOFT_REFERENCE, TIMESTAMP, USED_CAPACITY_COMMITTED_RESERVED, WEAK_REFERENCE

Fields inherited from interface com.microsoft.gctoolkit.parser.SharedPatterns

BEFORE_AFTER_CONFIGURED_PAUSE_RULE, CLASS_UNLOADING, CLASS_UNLOADING_BLOCK, MEMORY_SUMMARY_RULE, META_SPACE_RECORD, OCCUPANCY_CONFIGURED_RULE, PERM_SPACE_RECORD, STRING_AND_SYMBOL_SCRUB, STRING_AND_SYMBOL_SCRUB_BLOCK, STRING_TABLE_SCRUB, STRING_TABLE_SCRUB_BLOCK, SYMBOL_TABLE_SCRUB, SYMBOL_TABLE_SCRUB_BLOCK, TENURING_DETAILS, WEAK_REF, WEAK_REF_BLOCK

Constructor Summary

Constructors

Constructor	Description
GCLogParser()

Method Summary

Modifier and Type	Method	Description
protected void	advanceClock(DateTimeStamp now)	The assumption is, this method will manage the global clock and thus should never be over ridden
ChannelName	channel()
void	diary(Diary diary)
DateTimeStamp	getClock()
abstract String	getName()
protected abstract void	process(String trace)
void	publish(ChannelName channel, JVMEvent event)	The clock is advanced to the time at the end of the event.
void	publishTo(JVMEventChannel channel)
void	receive(String trace)
void	setClock(DateTimeStamp newValue)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.microsoft.gctoolkit.message.DataSourceParser

accepts, eventsProduced

Field Detail

END_OF_DATA_SENTINEL

public static final String END_OF_DATA_SENTINEL

See Also:

Constant Field Values

GCID_COUNTER

public static final GCParseRule GCID_COUNTER

diary

protected Diary diary

Constructor Detail

GCLogParser

public GCLogParser()

Method Detail

diary

public void diary(Diary diary)

Specified by:

diary in interface DataSourceParser

getClock

public DateTimeStamp getClock()

setClock

public void setClock(DateTimeStamp newValue)

getName

public abstract String getName()

process

protected abstract void process(String trace)

advanceClock

protected final void advanceClock(DateTimeStamp now)

The assumption is, this method will manage the global clock and thus should never be over ridden

Parameters:

now - - DateTimeStamp from the current GC log record

publish

public void publish(ChannelName channel,
                    JVMEvent event)

The clock is advanced to the time at the end of the event. The times reported in the GCLog file are "noisy" at best. This hyperactives the clock rollback detection which doesn't allow for slop. To minimize this, the clock only records when a time stamp is presented and isn't advanced to the end of the event except in the case of EOF where the time of JVM termination has not been recorded. In this case, JVMTermination time should advanced to after the previous event has ended.

Parameters:

channel -

event -

receive

public void receive(String trace)

Specified by:

receive in interface ChannelListener<String>

publishTo

public void publishTo(JVMEventChannel channel)

Specified by:

publishTo in interface DataSourceParser

channel

public ChannelName channel()

Specified by:

channel in interface ChannelListener<String>