io.opentelemetry.trace

Class SpanContext

java.lang.Object

io.opentelemetry.trace.SpanContext

@Immutable
public abstract class SpanContext
extends Object

A class that represents a span context. A span context contains the state that must propagate to child Spans and across process boundaries. It contains the identifiers (a trace_id and span_id) associated with the Span and a set of options (currently only whether the context is sampled or not), as well as the traceState and the remote flag.

Since:

0.1.0

Constructor Summary

Constructors

Constructor and Description
SpanContext()

Method Summary

Modifier and Type	Method and Description
void	copyTraceFlagsHexTo(char[] dest, int destOffset)
static SpanContext	create(String traceIdHex, String spanIdHex, byte traceFlags, TraceState traceState) Creates a new SpanContext with the given identifiers and options.
static SpanContext	createFromRemoteParent(String traceIdHex, String spanIdHex, byte traceFlags, TraceState traceState) Creates a new SpanContext that was propagated from a remote parent, with the given identifiers and options.
static SpanContext	getInvalid() Returns the invalid SpanContext that can be used for no-op operations.
String	getSpanIdAsHexString() Returns the span identifier associated with this SpanContext.
byte[]	getSpanIdBytes() Returns the byte[] representation of the span identifier associated with this SpanContext.
abstract byte	getTraceFlags() The byte-representation of TraceFlags.
String	getTraceIdAsHexString() Returns the trace identifier associated with this SpanContext.
byte[]	getTraceIdBytes() Returns the byte[] representation of the trace identifier associated with this SpanContext.
abstract TraceState	getTraceState() Returns the TraceState associated with this SpanContext.
abstract boolean	isRemote() Returns true if the SpanContext was propagated from a remote parent.
boolean	isSampled() Whether the span in this context is sampled.
boolean	isValid() Returns true if this SpanContext is valid.

Methods inherited from class java.lang.Object

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

Constructor Detail

SpanContext

public SpanContext()

Method Detail

getInvalid

public static SpanContext getInvalid()

Returns the invalid SpanContext that can be used for no-op operations.

Returns:

the invalid SpanContext.

create

public static SpanContext create(String traceIdHex,
                                 String spanIdHex,
                                 byte traceFlags,
                                 TraceState traceState)

Creates a new SpanContext with the given identifiers and options.

Parameters:

traceIdHex - the trace identifier of the span context.

spanIdHex - the span identifier of the span context.

traceFlags - the byte representation of the TraceFlags

traceState - the trace state for the span context.

Returns:

a new SpanContext with the given identifiers and options.

Since:

0.1.0

createFromRemoteParent

public static SpanContext createFromRemoteParent(String traceIdHex,
                                                 String spanIdHex,
                                                 byte traceFlags,
                                                 TraceState traceState)

Creates a new SpanContext that was propagated from a remote parent, with the given identifiers and options.

Parameters:

traceIdHex - the trace identifier of the span context.

spanIdHex - the span identifier of the span context.

traceFlags - the byte representation of the TraceFlags

traceState - the trace state for the span context.

Returns:

a new SpanContext with the given identifiers and options.

Since:

0.1.0

getTraceIdAsHexString

public String getTraceIdAsHexString()

Returns the trace identifier associated with this SpanContext.

Returns:

the trace identifier associated with this SpanContext.

Since:

0.1.0

getTraceIdBytes

@Memoized
public byte[] getTraceIdBytes()

Returns the byte[] representation of the trace identifier associated with this SpanContext.

Since:

0.8.0

getSpanIdAsHexString

public String getSpanIdAsHexString()

Returns the span identifier associated with this SpanContext.

Returns:

the span identifier associated with this SpanContext.

Since:

0.1.0

getSpanIdBytes

@Memoized
public byte[] getSpanIdBytes()

Returns the byte[] representation of the span identifier associated with this SpanContext.

Since:

0.8.0

isSampled

public boolean isSampled()

Whether the span in this context is sampled.

getTraceFlags

public abstract byte getTraceFlags()

The byte-representation of TraceFlags.

copyTraceFlagsHexTo

public void copyTraceFlagsHexTo(char[] dest,
                                int destOffset)

getTraceState

public abstract TraceState getTraceState()

Returns the TraceState associated with this SpanContext.

Returns:

the TraceState associated with this SpanContext.

Since:

0.1.0

isValid

@Memoized
public boolean isValid()

Returns true if this SpanContext is valid.

Returns:

true if this SpanContext is valid.

Since:

0.1.0

isRemote

public abstract boolean isRemote()

Returns true if the SpanContext was propagated from a remote parent.

Returns:

true if the SpanContext was propagated from a remote parent.

Since:

0.1.0