org.apache.cassandra.tracing

Class TraceState

java.lang.Object

org.apache.cassandra.tracing.TraceState

All Implemented Interfaces:

ProgressEventNotifier

Direct Known Subclasses:

TraceStateImpl

public abstract class TraceState
extends java.lang.Object
implements ProgressEventNotifier

ThreadLocal state for a tracing session. The presence of an instance of this class as a ThreadLocal denotes that an operation is being traced.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TraceState.Status

Field Summary

Fields

Modifier and Type	Field and Description
InetAddressAndPort	coordinator
java.util.UUID	sessionId
java.nio.ByteBuffer	sessionIdBytes
Tracing.TraceType	traceType
int	ttl
com.google.common.base.Stopwatch	watch

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TraceState(InetAddressAndPort coordinator, java.util.UUID sessionId, Tracing.TraceType traceType)

Method Summary

Modifier and Type	Method and Description
boolean	acquireReference()
void	addProgressListener(ProgressListener listener) Register progress listener to this publisher.
int	elapsed()
void	enableActivityNotification(java.lang.String tag) Activate notification with provided tag name.
protected void	notifyActivity()
int	releaseReference()
void	removeProgressListener(ProgressListener listener) Remove progress listener from this publisher.
void	stop()
void	trace(java.lang.String message)
void	trace(java.lang.String format, java.lang.Object... args)
void	trace(java.lang.String format, java.lang.Object arg)
void	trace(java.lang.String format, java.lang.Object arg1, java.lang.Object arg2)
protected abstract void	traceImpl(java.lang.String message)
TraceState.Status	waitActivity(long timeout)
protected void	waitForPendingEvents()

Methods inherited from class java.lang.Object

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

Field Detail

sessionId

public final java.util.UUID sessionId

coordinator

public final InetAddressAndPort coordinator

watch

public final com.google.common.base.Stopwatch watch

sessionIdBytes

public final java.nio.ByteBuffer sessionIdBytes

traceType

public final Tracing.TraceType traceType

ttl

public final int ttl

Constructor Detail

TraceState

protected TraceState(InetAddressAndPort coordinator,
                     java.util.UUID sessionId,
                     Tracing.TraceType traceType)

Method Detail

enableActivityNotification

public void enableActivityNotification(java.lang.String tag)

Activate notification with provided tag name.

Parameters:

tag - Tag name to add when emitting notification

addProgressListener

public void addProgressListener(ProgressListener listener)

Description copied from interface: ProgressEventNotifier

Register progress listener to this publisher.

Specified by:

addProgressListener in interface ProgressEventNotifier

Parameters:

listener - listener to register.

removeProgressListener

public void removeProgressListener(ProgressListener listener)

Description copied from interface: ProgressEventNotifier

Remove progress listener from this publisher.

Specified by:

removeProgressListener in interface ProgressEventNotifier

Parameters:

listener - listener to remove

elapsed

public int elapsed()

stop

public void stop()

waitActivity

public TraceState.Status waitActivity(long timeout)

notifyActivity

protected void notifyActivity()

trace

public void trace(java.lang.String format,
                  java.lang.Object arg)

trace

public void trace(java.lang.String format,
                  java.lang.Object arg1,
                  java.lang.Object arg2)

trace

public void trace(java.lang.String format,
                  java.lang.Object... args)

trace

public void trace(java.lang.String message)

traceImpl

protected abstract void traceImpl(java.lang.String message)

waitForPendingEvents

protected void waitForPendingEvents()

acquireReference

public boolean acquireReference()

releaseReference

public int releaseReference()