Move code from spring-boot-actuator to spring-boot-http-client-reactive

See gh-46118

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/observation/web/client/WebClientObservationConfiguration.java

@@ -21,8 +21,8 @@ import io.micrometer.observation.ObservationRegistry;
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.actuate.autoconfigure.metrics.MetricsProperties;
 import org.springframework.boot.actuate.autoconfigure.observation.ObservationProperties;
-import org.springframework.boot.actuate.metrics.web.reactive.client.ObservationWebClientCustomizer;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.http.client.reactive.web.actuate.observation.ObservationWebClientCustomizer;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.reactive.function.client.ClientRequestObservationConvention;
@@ -35,7 +35,7 @@ import org.springframework.web.reactive.function.client.WebClient;
  * @author Brian Clozel
  */
 @Configuration(proxyBeanMethods = false)
-@ConditionalOnClass(WebClient.class)
+@ConditionalOnClass({ WebClient.class, ObservationWebClientCustomizer.class })
 class WebClientObservationConfiguration {
 
 	@Bean

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/observation/web/client/WebClientObservationConfigurationTests.java

@@ -28,8 +28,8 @@ import reactor.core.publisher.Mono;
 
 import org.springframework.boot.actuate.autoconfigure.metrics.test.MetricsRun;
 import org.springframework.boot.actuate.autoconfigure.observation.ObservationAutoConfiguration;
-import org.springframework.boot.actuate.metrics.web.reactive.client.ObservationWebClientCustomizer;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.http.client.reactive.web.actuate.observation.ObservationWebClientCustomizer;
 import org.springframework.boot.http.client.reactive.web.autoconfigure.WebClientAutoConfiguration;
 import org.springframework.boot.test.context.assertj.AssertableApplicationContext;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;

spring-boot-project/spring-boot-http-client-reactive/build.gradle

@@ -41,6 +41,7 @@ dependencies {
 	testImplementation(project(":spring-boot-project:spring-boot-test"))
 	testImplementation(project(":spring-boot-project:spring-boot-tomcat"))
 	testImplementation(project(":spring-boot-project:spring-boot-tools:spring-boot-test-support"))
+	testImplementation("io.micrometer:micrometer-observation-test")
 
 	testRuntimeOnly("ch.qos.logback:logback-classic")
 }

spring-boot-project/spring-boot-http-client-reactive/src/main/java/org/springframework/boot/http/client/reactive/web/actuate/observation/ObservationWebClientCustomizer.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.actuate.metrics.web.reactive.client;
+package org.springframework.boot.http.client.reactive.web.actuate.observation;
 
 import io.micrometer.observation.ObservationRegistry;
 

spring-boot-project/spring-boot-http-client-reactive/src/main/java/org/springframework/boot/http/client/reactive/web/actuate/observation/package-info.java

@@ -15,7 +15,6 @@
  */
 
 /**
- * Actuator support for {@link org.springframework.web.reactive.function.client.WebClient}
- * metrics.
+ * Observation integration for WebClient.
  */
-package org.springframework.boot.actuate.metrics.web.reactive.client;
+package org.springframework.boot.http.client.reactive.web.actuate.observation;

spring-boot-project/spring-boot-http-client-reactive/src/test/java/org/springframework/boot/http/client/reactive/web/actuate/observation/ObservationWebClientCustomizerTests.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.actuate.metrics.web.reactive.client;
+package org.springframework.boot.http.client.reactive.web.actuate.observation;
 
 import io.micrometer.observation.tck.TestObservationRegistry;
 import org.junit.jupiter.api.Test;