Package one.jfr

Class JfrReader

java.lang.Object

one.jfr.JfrReader

All Implemented Interfaces:

Closeable, AutoCloseable

public class JfrReader
extends Object
implements Closeable

Parses JFR output produced by async-profiler.

Field Summary

Fields

Modifier and Type	Field	Description
final Dictionary<ClassRef>	classes
long	endNanos
final Map<String,Map<Integer,String>>	enums
final Dictionary<MethodRef>	methods
final Map<String,String>	settings
final Dictionary<StackTrace>	stackTraces
long	startNanos
long	startTicks
boolean	stopAtNewChunk
final Dictionary<byte[]>	symbols
final Dictionary<String>	threads
long	ticksPerSec
final Dictionary<one.jfr.JfrClass>	types
final Map<String,one.jfr.JfrClass>	typesByName

Constructor Summary

Constructors

Constructor	Description
JfrReader(String fileName)
JfrReader(ByteBuffer buf)

Method Summary

Modifier and Type	Method	Description
void	close()
long	durationNanos()
boolean	eof()
byte[]	getBytes()
double	getDouble()
int	getEnumKey(String typeName, String value)
String	getEnumValue(String typeName, int key)
float	getFloat()
String	getString()
int	getVarint()
long	getVarlong()
boolean	incomplete()
long	nanosToTicks(long nanos)
List<Event>	readAllEvents()
<E extends Event> List<E>	readAllEvents(Class<E> cls)
Event	readEvent()
<E extends Event> E	readEvent(Class<E> cls)
<E extends Event> void	registerEvent(String name, Class<E> eventClass)

Methods inherited from class java.lang.Object

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

Field Details

startNanos

public long startNanos

endNanos

public long endNanos

startTicks

public long startTicks

ticksPerSec

public long ticksPerSec

stopAtNewChunk

public boolean stopAtNewChunk

types

public final Dictionary<one.jfr.JfrClass> types

typesByName

public final Map<String,one.jfr.JfrClass> typesByName

threads

public final Dictionary<String> threads

classes

public final Dictionary<ClassRef> classes

symbols

public final Dictionary<byte[]> symbols

methods

public final Dictionary<MethodRef> methods

stackTraces

public final Dictionary<StackTrace> stackTraces

settings

public final Map<String,String> settings

enums

public final Map<String,Map<Integer,String>> enums

Constructor Details

JfrReader

public JfrReader(String fileName)
          throws IOException

Throws:

IOException

JfrReader

public JfrReader(ByteBuffer buf)
          throws IOException

Throws:

IOException

Method Details

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

eof

public boolean eof()

incomplete

public boolean incomplete()

durationNanos

public long durationNanos()

nanosToTicks

public long nanosToTicks(long nanos)

registerEvent

public <E extends Event> void registerEvent(String name,
 Class<E> eventClass)

readAllEvents

public List<Event> readAllEvents()
                          throws IOException

Throws:

IOException

readAllEvents

public <E extends Event> List<E> readAllEvents(Class<E> cls)
                                        throws IOException

Throws:

IOException

readEvent

public Event readEvent()
                throws IOException

Throws:

IOException

readEvent

public <E extends Event> E readEvent(Class<E> cls)
                              throws IOException

Throws:

IOException

getEnumKey

public int getEnumKey(String typeName,
 String value)

getEnumValue

public String getEnumValue(String typeName,
 int key)

getVarint

public int getVarint()

getVarlong

public long getVarlong()

getFloat

public float getFloat()

getDouble

public double getDouble()

getString

public String getString()

getBytes

public byte[] getBytes()