Module io.helidon.webclient.tracing

Package io.helidon.webclient.tracing

Class WebClientTracing

java.lang.Object

io.helidon.webclient.tracing.WebClientTracing

All Implemented Interfaces:

NamedService, WebClientService

public class WebClientTracing
extends Object
implements WebClientService

Client service for tracing propagation. This service adds appropriate headers to the outbound request to propagate trace across services, so the spans can form a hierarchy in a tracer, such as Jaeger.

Nested Class Summary

Nested classes/interfaces inherited from interface io.helidon.webclient.spi.WebClientService

WebClientService.Chain

Method Summary

Modifier and Type	Method	Description
static WebClientService	create()	Creates new instance of client tracing service.
static WebClientService	create(Tracer tracer)	Creates a new client tracing service for a specific tracer.
WebClientServiceResponse	handle(WebClientService.Chain chain, WebClientServiceRequest request)	Invoke a service, call WebClientService.Chain.proceed(io.helidon.webclient.api.WebClientServiceRequest) to call the next service in the chain.
String	type()	Type of this implementation, to distinguish instances of same type, with different NamedService.name().

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.helidon.webclient.spi.WebClientService

name

Method Details

create

public static WebClientService create()

Creates new instance of client tracing service.

Returns:

client tracing service

create

public static WebClientService create(Tracer tracer)

Creates a new client tracing service for a specific tracer.

Parameters:

tracer - to create new spans

Returns:

client tracing service

type

public String type()

Description copied from interface: NamedService

Type of this implementation, to distinguish instances of same type, with different NamedService.name(). Use for example ConfiguredProvider.configKey() to define the type.

Specified by:

type in interface NamedService

Specified by:

type in interface WebClientService

Returns:

type of this service

handle

public WebClientServiceResponse handle(WebClientService.Chain chain,
 WebClientServiceRequest request)

Description copied from interface: WebClientService

Invoke a service, call WebClientService.Chain.proceed(io.helidon.webclient.api.WebClientServiceRequest) to call the next service in the chain.

Specified by:

handle in interface WebClientService

Parameters:

chain - to invoke next web client service, or the HTTP call if this is the last service

request - request from the client, or previous services

Returns:

response to be returned to the client