Package org.springframework.cloud.sleuth.instrument.web

Class WebFluxSleuthOperators

java.lang.Object

org.springframework.cloud.sleuth.instrument.web.WebFluxSleuthOperators

public final class WebFluxSleuthOperators
extends Object

WebFlux operators that are capable to reuse tracing context from Reactor's Context. IMPORTANT: This API is experimental and might change in the future.

Since:

3.0.0

Author:

Marcin Grzejszczak

Method Summary

Modifier and Type	Method	Description
static TraceContext	currentTraceContext(org.springframework.web.server.ServerWebExchange exchange)	Returns the current trace context.
static TraceContext	currentTraceContext(reactor.core.publisher.Signal signal)	Returns the current trace context.
static TraceContext	currentTraceContext(reactor.util.context.Context context)	Returns the current trace context.
static Consumer<reactor.core.publisher.Signal>	withSpanInScope(Runnable runnable)	Wraps a runnable with a span.
static void	withSpanInScope(Tracer tracer, CurrentTraceContext currentTraceContext, org.springframework.web.server.ServerWebExchange exchange, Runnable runnable)	Wraps a runnable with a span.
static <T> T	withSpanInScope(Tracer tracer, CurrentTraceContext currentTraceContext, org.springframework.web.server.ServerWebExchange exchange, Callable<T> callable)	Wraps a callable with a span.
static Consumer<reactor.core.publisher.Signal>	withSpanInScope(reactor.core.publisher.SignalType signalType, Runnable runnable)	Wraps a runnable with a span.
static Consumer<reactor.core.publisher.Signal>	withSpanInScope(reactor.core.publisher.SignalType signalType, Consumer<reactor.core.publisher.Signal> consumer)	Wraps a runnable with a span.
static void	withSpanInScope(reactor.util.context.Context context, Runnable runnable)	Wraps a runnable with a span.
static <T> T	withSpanInScope(reactor.util.context.Context context, Callable<T> callable)	Wraps a callable with a span.
static void	withSpanInScope(reactor.util.context.ContextView context, Runnable runnable)	Wraps a runnable with a span.
static <T> T	withSpanInScope(reactor.util.context.ContextView context, Callable<T> callable)	Wraps a callable with a span.

Methods inherited from class java.lang.Object

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

Method Detail

withSpanInScope

public static Consumer<reactor.core.publisher.Signal> withSpanInScope(reactor.core.publisher.SignalType signalType,
                                                                      Runnable runnable)

Wraps a runnable with a span.

Parameters:

signalType - - Reactor's signal type

runnable - - lambda to execute within the tracing context

Returns:

consumer of a signal

withSpanInScope

public static Consumer<reactor.core.publisher.Signal> withSpanInScope(reactor.core.publisher.SignalType signalType,
                                                                      Consumer<reactor.core.publisher.Signal> consumer)

Wraps a runnable with a span.

Parameters:

signalType - - Reactor's signal type

consumer - - lambda to execute within the tracing context

Returns:

consumer of a signal

withSpanInScope

public static Consumer<reactor.core.publisher.Signal> withSpanInScope(Runnable runnable)

Wraps a runnable with a span.

Parameters:

runnable - - lambda to execute within the tracing context

Returns:

consumer of a signal

withSpanInScope

public static void withSpanInScope(reactor.util.context.Context context,
                                   Runnable runnable)

Wraps a runnable with a span.

Parameters:

context - - Reactor context that contains the TraceContext

runnable - - lambda to execute within the tracing context

withSpanInScope

public static void withSpanInScope(reactor.util.context.ContextView context,
                                   Runnable runnable)

Wraps a runnable with a span.

Parameters:

context - - Reactor context that contains the TraceContext

runnable - - lambda to execute within the tracing context

withSpanInScope

public static <T> T withSpanInScope(reactor.util.context.Context context,
                                    Callable<T> callable)

Wraps a callable with a span.

Type Parameters:

T - callable's return type

Parameters:

context - - Reactor context that contains the TraceContext

callable - - lambda to execute within the tracing context

Returns:

value from the callable

withSpanInScope

public static <T> T withSpanInScope(reactor.util.context.ContextView context,
                                    Callable<T> callable)

Wraps a callable with a span.

Type Parameters:

T - callable's return type

Parameters:

context - - Reactor context that contains the TraceContext

callable - - lambda to execute within the tracing context

Returns:

value from the callable

withSpanInScope

public static void withSpanInScope(Tracer tracer,
                                   CurrentTraceContext currentTraceContext,
                                   org.springframework.web.server.ServerWebExchange exchange,
                                   Runnable runnable)

Wraps a runnable with a span.

Parameters:

tracer - - tracer bean

currentTraceContext - - currentTraceContext bean

exchange - - server web exchange that can contain the TraceContext in its attribute

runnable - - lambda to execute within the currentTraceContext context

withSpanInScope

public static <T> T withSpanInScope(Tracer tracer,
                                    CurrentTraceContext currentTraceContext,
                                    org.springframework.web.server.ServerWebExchange exchange,
                                    Callable<T> callable)

Wraps a callable with a span.

Type Parameters:

T - callable's return type

Parameters:

tracer - - tracer bean

currentTraceContext - - currentTraceContext bean

exchange - - server web exchange that can contain the TraceContext in its attribute

callable - - lambda to execute within the tracing context

Returns:

value from the callable

currentTraceContext

public static TraceContext currentTraceContext(org.springframework.web.server.ServerWebExchange exchange)

Returns the current trace context.

Parameters:

exchange - - server web exchange that can contain the TraceContext in its attribute

Returns:

current trace context or null if it's not present

currentTraceContext

public static TraceContext currentTraceContext(reactor.util.context.Context context)

Returns the current trace context.

Parameters:

context - - Reactor context that can contain the TraceContext

Returns:

current trace context or null if it's not present

currentTraceContext

public static TraceContext currentTraceContext(reactor.core.publisher.Signal signal)

Returns the current trace context.

Parameters:

signal - - Reactor signal that can contain the TraceContext in its context

Returns:

current trace context or null if it's not present