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jdk.jfr.internal.tracing

public final Class PlatformTracer

Class Inheritance

extends Object

java.lang.Object
jdk.jfr.internal.tracing.PlatformTracer

Imports

java.util.ArrayList, .List, java.util.concurrent.ConcurrentHashMap, jdk.jfr.events.MethodTimingEvent, jdk.jfr.internal.JVM, .LogLevel, .LogTag, .Logger, .MetadataRepository, .SecuritySupport, jdk.jfr.internal.util.Bytecode, jdk.jfr.tracing.MethodTracer

Class that contains the Method Tracer implementation.

By placing the implementation in jdk.jfr.internal.tracing package instead of the jdk.jfr.tracing package fewer internals are exposed to the application.

Field Summary

Modifier and Type	Field and Description
private static TimedMethod	OBJECT
private static final ConcurrentHashMap<Long, TimedClass>	timedClasses
private static final ConcurrentHashMap<Long, TimedMethod>	timedMethods
private static List<Filter>	timingFilters
private static List<Filter>	traceFilters

Constructor Summary

Access	Constructor and Description
public	PlatformTracer()

Method Summary

Modifier and Type	Method and Description
public static void	addObjectTiming(long duration)
public static void	addTiming(long id, long duration)
private static long[]	applyFilter(Modification modification, List<String> filters)
public static void	emitTiming()
private static int	filterCount()
private static boolean	hasFilters()
public static void	initialize()
private static void	log(LogLevel level, String message, Module module, String className)
private static List<Filter>	makeFilters(List<String> filterTexts, Modification modification)
public static byte[]	onMethodTrace(Module module, ClassLoader classLoader, String className, byte[] oldBytecode, long[] ids, String[] names, String[] signatures, int[] modifications)
public static void	publishClass(long classId)
private static void	publishClasses(long[] classIds)
private static void	removeClasses(long[] classIds)
private static void	reset()
public static void	setFilters(Modification modification, List<String> filters)
private static void	updateTiming(List<Method> methods)
private static void	updateTiming(Method method)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

OBJECT	back to summary
private static TimedMethod OBJECT

timedClasses	back to summary
private static final ConcurrentHashMap<Long, TimedClass> timedClasses

timedMethods	back to summary
private static final ConcurrentHashMap<Long, TimedMethod> timedMethods

timingFilters	back to summary
private static List<Filter> timingFilters

traceFilters	back to summary
private static List<Filter> traceFilters

Constructor Detail

PlatformTracer	back to summary
public PlatformTracer()

Method Detail

addObjectTiming	back to summary
public static void addObjectTiming(long duration)

addTiming	back to summary
public static void addTiming(long id, long duration)

applyFilter	back to summary
private static long[] applyFilter(Modification modification, List<String> filters)

emitTiming	back to summary
public static void emitTiming()

filterCount	back to summary
private static int filterCount()

hasFilters	back to summary
private static boolean hasFilters()

initialize	back to summary
public static void initialize()

log	back to summary
private static void log(LogLevel level, String message, Module module, String className)

makeFilters	back to summary
private static List<Filter> makeFilters(List<String> filterTexts, Modification modification)

onMethodTrace	back to summary
public static byte[] onMethodTrace(Module module, ClassLoader classLoader, String className, byte[] oldBytecode, long[] ids, String[] names, String[] signatures, int[] modifications)

publishClass	back to summary
public static void publishClass(long classId)

publishClasses	back to summary
private static void publishClasses(long[] classIds)

removeClasses	back to summary
private static void removeClasses(long[] classIds)

reset	back to summary
private static void reset()

setFilters	back to summary
public static void setFilters(Modification modification, List<String> filters)

updateTiming	back to summary
private static void updateTiming(List<Method> methods)

updateTiming	back to summary
private static void updateTiming(Method method)