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Fix traceId discrepancy in case error in servlet web #17134

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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
import io.micrometer.observation.Observation;
import io.micrometer.observation.ObservationConvention;
import io.micrometer.observation.ObservationRegistry;
import io.micrometer.observation.ObservationView;
import jakarta.servlet.Filter;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
Expand All @@ -46,6 +47,7 @@
* wraps the chain in before and after observations
*
* @author Josh Cummings
* @author Nikita Konev
* @since 6.0
*/
public final class ObservationFilterChainDecorator implements FilterChainProxy.FilterChainDecorator {
Expand All @@ -54,6 +56,12 @@ public final class ObservationFilterChainDecorator implements FilterChainProxy.F

private static final String ATTRIBUTE = ObservationFilterChainDecorator.class + ".observation";

private static final String ATTRIBUTE_BEFORE_OBSERVATION_VIEW = ObservationFilterChainDecorator.class
+ ".observation.view.before";

private static final String ATTRIBUTE_AFTER_OBSERVATION_VIEW = ObservationFilterChainDecorator.class
+ ".observation.view.after";

static final String UNSECURED_OBSERVATION_NAME = "spring.security.http.unsecured.requests";

static final String SECURED_OBSERVATION_NAME = "spring.security.http.secured.requests";
Expand Down Expand Up @@ -250,9 +258,30 @@ private void wrapFilter(ServletRequest request, ServletResponse response, Filter
private AroundFilterObservation parent(HttpServletRequest request) {
FilterChainObservationContext beforeContext = FilterChainObservationContext.before();
FilterChainObservationContext afterContext = FilterChainObservationContext.after();

Object maybeBeforeObservationView = request.getAttribute(ATTRIBUTE_BEFORE_OBSERVATION_VIEW);
if (maybeBeforeObservationView != null) {
ObservationView observationView = (ObservationView) maybeBeforeObservationView;
beforeContext.setParentObservation(observationView);
}

Object maybeAfterObservationView = request.getAttribute(ATTRIBUTE_AFTER_OBSERVATION_VIEW);
if (maybeAfterObservationView != null) {
ObservationView observationView = (ObservationView) maybeAfterObservationView;
afterContext.setParentObservation(observationView);
}

Observation before = Observation.createNotStarted(this.convention, () -> beforeContext, this.registry);
Observation after = Observation.createNotStarted(this.convention, () -> afterContext, this.registry);
AroundFilterObservation parent = AroundFilterObservation.create(before, after);

if (maybeBeforeObservationView == null) {
request.setAttribute(ATTRIBUTE_BEFORE_OBSERVATION_VIEW, before.getContext().getParentObservation());
}
if (maybeAfterObservationView == null) {
request.setAttribute(ATTRIBUTE_AFTER_OBSERVATION_VIEW, after.getContext().getParentObservation());
}

request.setAttribute(ATTRIBUTE, parent);
return parent;
}
Expand Down