Merge branch '6.1.x'

spring-web/src/main/java/org/springframework/web/client/DefaultRestClient.java

@@ -520,6 +520,7 @@ final class DefaultRestClient implements RestClient {
 
 			ClientHttpResponse clientResponse = null;
 			Observation observation = null;
+			Observation.Scope observationScope = null;
 			URI uri = null;
 			try {
 				uri = initUri();
@@ -532,6 +533,7 @@ final class DefaultRestClient implements RestClient {
 				observationContext.setUriTemplate((String) attributes.get(URI_TEMPLATE_ATTRIBUTE));
 				observation = ClientHttpObservationDocumentation.HTTP_CLIENT_EXCHANGES.observation(observationConvention,
 						DEFAULT_OBSERVATION_CONVENTION, () -> observationContext, observationRegistry).start();
+				observationScope = observation.openScope();
 				if (this.body != null) {
 					this.body.writeTo(clientRequest);
 				}
@@ -540,11 +542,14 @@ final class DefaultRestClient implements RestClient {
 				}
 				clientResponse = clientRequest.execute();
 				observationContext.setResponse(clientResponse);
-				ConvertibleClientHttpResponse convertibleWrapper = new DefaultConvertibleClientHttpResponse(clientResponse, observation);
+				ConvertibleClientHttpResponse convertibleWrapper = new DefaultConvertibleClientHttpResponse(clientResponse, observation, observationScope);
 				return exchangeFunction.exchange(clientRequest, convertibleWrapper);
 			}
 			catch (IOException ex) {
 				ResourceAccessException resourceAccessException = createResourceAccessException(uri, this.httpMethod, ex);
+				if (observationScope != null) {
+					observationScope.close();
+				}
 				if (observation != null) {
 					observation.error(resourceAccessException);
 					observation.stop();
@@ -552,6 +557,9 @@ final class DefaultRestClient implements RestClient {
 				throw resourceAccessException;
 			}
 			catch (Throwable error) {
+				if (observationScope != null) {
+					observationScope.close();
+				}
 				if (observation != null) {
 					observation.error(error);
 					observation.stop();
@@ -561,6 +569,9 @@ final class DefaultRestClient implements RestClient {
 			finally {
 				if (close && clientResponse != null) {
 					clientResponse.close();
+					if (observationScope != null) {
+						observationScope.close();
+					}
 					if (observation != null) {
 						observation.stop();
 					}
@@ -771,10 +782,12 @@ final class DefaultRestClient implements RestClient {
 
 		private final Observation observation;
 
+		private final Observation.Scope observationScope;
 
-		public DefaultConvertibleClientHttpResponse(ClientHttpResponse delegate, Observation observation) {
+		public DefaultConvertibleClientHttpResponse(ClientHttpResponse delegate, Observation observation, Observation.Scope observationScope) {
 			this.delegate = delegate;
 			this.observation = observation;
+			this.observationScope = observationScope;
 		}
 
 
@@ -815,6 +828,7 @@ final class DefaultRestClient implements RestClient {
 		@Override
 		public void close() {
 			this.delegate.close();
+			this.observationScope.close();
 			this.observation.stop();
 		}
 

spring-web/src/test/java/org/springframework/web/client/RestClientObservationTests.java

@@ -27,15 +27,19 @@ import io.micrometer.observation.Observation;
 import io.micrometer.observation.ObservationHandler;
 import io.micrometer.observation.tck.TestObservationRegistry;
 import io.micrometer.observation.tck.TestObservationRegistryAssert;
+import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpRequest;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.http.client.ClientHttpRequest;
+import org.springframework.http.client.ClientHttpRequestExecution;
 import org.springframework.http.client.ClientHttpRequestFactory;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
 import org.springframework.http.client.ClientHttpResponse;
 import org.springframework.http.client.observation.ClientRequestObservationContext;
 import org.springframework.http.client.observation.ClientRequestObservationConvention;
@@ -73,12 +77,15 @@ class RestClientObservationTests {
 
 	@BeforeEach
 	void setupEach() {
-		this.client = RestClient.builder()
+		this.client = createBuilder().build();
+		this.observationRegistry.observationConfig().observationHandler(new ContextAssertionObservationHandler());
+	}
+
+	RestClient.Builder createBuilder() {
+		return RestClient.builder()
 				.messageConverters(converters -> converters.add(0, this.converter))
 				.requestFactory(this.requestFactory)
-				.observationRegistry(this.observationRegistry)
-				.build();
-		this.observationRegistry.observationConfig().observationHandler(new ContextAssertionObservationHandler());
+				.observationRegistry(this.observationRegistry);
 	}
 
 	@Test
@@ -238,6 +245,22 @@ class RestClientObservationTests {
 		assertThatHttpObservation().hasLowCardinalityKeyValue("outcome", "SUCCESS");
 	}
 
+	@Test
+	void openScopeWithObservation() throws Exception {
+		this.client = createBuilder().requestInterceptor(new ObservationContextInterceptor(this.observationRegistry))
+				.defaultStatusHandler(new ObservationErrorHandler(this.observationRegistry)).build();
+		mockSentRequest(GET, "https://example.org");
+		mockResponseStatus(HttpStatus.OK);
+		mockResponseBody("Hello World", MediaType.TEXT_PLAIN);
+
+		client.get().uri("https://example.org").retrieve().toBodilessEntity();
+	}
+
+	@AfterEach
+	void checkAfter() {
+		assertThat(this.observationRegistry.getCurrentObservationScope()).isNull();
+	}
+
 
 	private void mockSentRequest(HttpMethod method, String uri) throws Exception {
 		mockSentRequest(method, uri, new HttpHeaders());
@@ -288,4 +311,38 @@ class RestClientObservationTests {
 
 	}
 
+	static class ObservationContextInterceptor implements ClientHttpRequestInterceptor {
+
+		private final TestObservationRegistry observationRegistry;
+
+		public ObservationContextInterceptor(TestObservationRegistry observationRegistry) {
+			this.observationRegistry = observationRegistry;
+		}
+
+		@Override
+		public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
+			assertThat(this.observationRegistry.getCurrentObservationScope()).isNotNull();
+			return execution.execute(request, body);
+		}
+	}
+
+	static class ObservationErrorHandler implements ResponseErrorHandler {
+
+		final TestObservationRegistry observationRegistry;
+
+		ObservationErrorHandler(TestObservationRegistry observationRegistry) {
+			this.observationRegistry = observationRegistry;
+		}
+
+		@Override
+		public boolean hasError(ClientHttpResponse response) throws IOException {
+			return true;
+		}
+
+		@Override
+		public void handleError(ClientHttpResponse response) throws IOException {
+			assertThat(this.observationRegistry.getCurrentObservationScope()).isNotNull();
+		}
+	}
+
 }