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Fix regression introduced in #1126 (brave headers propagation) #1206

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Merged
merged 2 commits into from
Feb 5, 2019
Merged

Fix regression introduced in #1126 (brave headers propagation) #1206

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7e56dc6
Fix regression introduced in #1126 (brave headers propagation)
bsideup Feb 5, 2019
78c5236
Add a test
bsideup Feb 5, 2019
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34 changes: 17 additions & 17 deletions ...g/springframework/cloud/sleuth/instrument/web/client/TraceWebClientBeanPostProcessor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -146,7 +146,17 @@ public static ExchangeFilterFunction create(BeanFactory beanFactory) {

@Override
public Mono<ClientResponse> filter(ClientRequest request, ExchangeFunction next) {
return new MonoWebClientTrace(next, request, this);
ClientRequest.Builder builder = ClientRequest.from(request);
if (log.isDebugEnabled()) {
log.debug("Instrumenting WebClient call");
}
Span span = handler().handleSend(injector(), builder, request,
tracer().nextSpan());
if (log.isDebugEnabled()) {
log.debug("Handled send of " + span);
}

return new MonoWebClientTrace(next, builder.build(), this, span);
}

private static final class MonoWebClientTrace extends Mono<ClientResponse> {
Expand All @@ -165,37 +175,27 @@ private static final class MonoWebClientTrace extends Mono<ClientResponse> {

final Function<? super Publisher<DataBuffer>, ? extends Publisher<DataBuffer>> scopePassingTransformer;

private final Span span;

MonoWebClientTrace(ExchangeFunction next, ClientRequest request,
TraceExchangeFilterFunction parent) {
TraceExchangeFilterFunction parent, Span span) {
this.next = next;
this.request = request;
this.tracer = parent.tracer();
this.handler = parent.handler();
this.injector = parent.injector();
this.tracing = parent.httpTracing().tracing();
this.scopePassingTransformer = parent.scopePassingTransformer;
this.span = span;
}

@Override
public void subscribe(CoreSubscriber<? super ClientResponse> subscriber) {
final ClientRequest.Builder builder = ClientRequest.from(this.request);

Context context = subscriber.currentContext();

this.next.exchange(builder.build()).subscribe(new WebClientTracerSubscriber(
subscriber, context, findOrCreateSpan(builder), this));
}

private Span findOrCreateSpan(ClientRequest.Builder builder) {
if (log.isDebugEnabled()) {
log.debug("Instrumenting WebClient call");
}
Span clientSpan = this.handler.handleSend(this.injector, builder,
this.request, this.tracer.nextSpan());
if (log.isDebugEnabled()) {
log.debug("Handled send of " + clientSpan);
}
return clientSpan;
this.next.exchange(request).subscribe(
new WebClientTracerSubscriber(subscriber, context, span, this));
}

static final class WebClientTracerSubscriber
Expand Down