org.apache.ignite.internal.processors.tracing

Class NoopTracing

java.lang.Object

org.apache.ignite.internal.processors.tracing.NoopTracing

All Implemented Interfaces:

SpanManager, Tracing

public class NoopTracing
extends Object
implements Tracing

Noop implementation of Tracing.

Field Summary

Fields

Modifier and Type	Field and Description
static byte[]	NOOP_SERIALIZED_SPAN Noop serialized span.

Constructor Summary

Constructors

Constructor and Description
NoopTracing() Constructor.

Method Summary

Modifier and Type	Method and Description
@NotNull TracingConfigurationManager	configuration() Returns the TracingConfigurationManager instance that allows to Configure tracing parameters such as sampling rate for the specific tracing coordinates such as scope and label.
Span	create(@NotNull SpanType spanType, @Nullable byte[] serializedParentSpan) Creates Span given name and explicit parent.
Span	create(@NotNull SpanType spanType, @Nullable Span parentSpan) Creates Span given name and explicit parent.
@NotNull Span	create(@NotNull SpanType spanType, @Nullable Span parentSpan, @Nullable String label) Creates Span given name and explicit parent.
TraceableMessagesHandler	messages()
byte[]	serialize(@NotNull Span span) Serializes span to byte array to send context over network.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.internal.processors.tracing.SpanManager

create

Field Detail

NOOP_SERIALIZED_SPAN

public static final byte[] NOOP_SERIALIZED_SPAN

Noop serialized span.

Constructor Detail

NoopTracing

public NoopTracing()

Constructor.

Method Detail

messages

public TraceableMessagesHandler messages()

Specified by:

messages in interface Tracing

Returns:

Helper to handle traceable messages.

create

public Span create(@NotNull
                   @NotNull SpanType spanType,
                   @Nullable
                   @Nullable Span parentSpan)

Creates Span given name and explicit parent.

Specified by:

create in interface SpanManager

Parameters:

spanType - Type of span to create.

parentSpan - Parent span.

Returns:

Created span.

create

public Span create(@NotNull
                   @NotNull SpanType spanType,
                   @Nullable
                   @Nullable byte[] serializedParentSpan)

Creates Span given name and explicit parent.

Specified by:

create in interface SpanManager

Parameters:

spanType - Type of span to create.

serializedParentSpan - Parent span as serialized bytes.

Returns:

Created span.

create

@NotNull
public @NotNull Span create(@NotNull
                                     @NotNull SpanType spanType,
                                     @Nullable
                                     @Nullable Span parentSpan,
                                     @Nullable
                                     @Nullable String label)

Creates Span given name and explicit parent.

Specified by:

create in interface SpanManager

Parameters:

spanType - Type of span to create.

parentSpan - Parent span.

label - Label.

Returns:

Created span.

serialize

public byte[] serialize(@NotNull
                        @NotNull Span span)

Serializes span to byte array to send context over network.

Specified by:

serialize in interface SpanManager

Parameters:

span - Span.

configuration

@NotNull
public @NotNull TracingConfigurationManager configuration()

Returns the TracingConfigurationManager instance that allows to

• Configure tracing parameters such as sampling rate for the specific tracing coordinates such as scope and label.
• Retrieve the most specific tracing parameters for the specified tracing coordinates (scope and label)
• Restore the tracing parameters for the specified tracing coordinates to the default.
• List all pairs of tracing configuration coordinates and tracing configuration parameters.

Specified by:

configuration in interface Tracing

Returns:

TracingConfigurationManager instance.