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Remove ServerHttpObservationFilter from WebFlux
This commit removes the auto-configuration of the `ServerHttpObservationFilter` bean for WebFlux applications as it's been deprecated by Spring Framework. The Observability instrumentation is now handled at the `WebHttpHandlerBuilder` in Framework directly and doesn't need any auto-configuration from Spring Boot. Closes gh-37344
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@ -21,9 +21,6 @@ import io.micrometer.core.instrument.config.MeterFilter;
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import io.micrometer.observation.Observation;
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import io.micrometer.observation.ObservationRegistry;
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import org.springframework.beans.factory.ObjectProvider;
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import org.springframework.boot.actuate.autoconfigure.metrics.CompositeMeterRegistryAutoConfiguration;
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import org.springframework.boot.actuate.autoconfigure.metrics.MetricsAutoConfiguration;
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import org.springframework.boot.actuate.autoconfigure.metrics.MetricsProperties;
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import org.springframework.boot.actuate.autoconfigure.metrics.OnlyOnceLoggingDenyMeterFilter;
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import org.springframework.boot.actuate.autoconfigure.metrics.export.simple.SimpleMetricsExportAutoConfiguration;
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@ -33,16 +30,10 @@ import org.springframework.boot.autoconfigure.AutoConfiguration;
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import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
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import org.springframework.boot.context.properties.EnableConfigurationProperties;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.Ordered;
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import org.springframework.core.annotation.Order;
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import org.springframework.http.server.reactive.observation.DefaultServerRequestObservationConvention;
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import org.springframework.http.server.reactive.observation.ServerRequestObservationConvention;
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import org.springframework.web.filter.reactive.ServerHttpObservationFilter;
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/**
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* {@link EnableAutoConfiguration Auto-configuration} for instrumentation of Spring
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@ -53,48 +44,22 @@ import org.springframework.web.filter.reactive.ServerHttpObservationFilter;
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* @author Dmytro Nosan
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* @since 3.0.0
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*/
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@AutoConfiguration(after = { MetricsAutoConfiguration.class, CompositeMeterRegistryAutoConfiguration.class,
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SimpleMetricsExportAutoConfiguration.class, ObservationAutoConfiguration.class })
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@ConditionalOnClass(Observation.class)
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@ConditionalOnBean(ObservationRegistry.class)
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@AutoConfiguration(after = { SimpleMetricsExportAutoConfiguration.class, ObservationAutoConfiguration.class })
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@ConditionalOnClass({ Observation.class, MeterRegistry.class })
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@ConditionalOnBean({ ObservationRegistry.class, MeterRegistry.class })
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@ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.REACTIVE)
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@EnableConfigurationProperties({ MetricsProperties.class, ObservationProperties.class })
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@SuppressWarnings("removal")
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public class WebFluxObservationAutoConfiguration {
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private final ObservationProperties observationProperties;
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public WebFluxObservationAutoConfiguration(ObservationProperties observationProperties) {
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this.observationProperties = observationProperties;
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}
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@Bean
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@ConditionalOnMissingBean(ServerHttpObservationFilter.class)
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@Order(Ordered.HIGHEST_PRECEDENCE + 1)
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public ServerHttpObservationFilter webfluxObservationFilter(ObservationRegistry registry,
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ObjectProvider<ServerRequestObservationConvention> customConvention) {
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String name = this.observationProperties.getHttp().getServer().getRequests().getName();
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ServerRequestObservationConvention convention = customConvention
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.getIfAvailable(() -> new DefaultServerRequestObservationConvention(name));
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return new ServerHttpObservationFilter(registry, convention);
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}
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@Configuration(proxyBeanMethods = false)
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@ConditionalOnClass(MeterRegistry.class)
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@ConditionalOnBean(MeterRegistry.class)
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static class MeterFilterConfiguration {
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@Bean
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@Order(0)
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MeterFilter metricsHttpServerUriTagFilter(MetricsProperties metricsProperties,
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ObservationProperties observationProperties) {
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String name = observationProperties.getHttp().getServer().getRequests().getName();
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MeterFilter filter = new OnlyOnceLoggingDenyMeterFilter(
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() -> "Reached the maximum number of URI tags for '%s'.".formatted(name));
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return MeterFilter.maximumAllowableTags(name, "uri", metricsProperties.getWeb().getServer().getMaxUriTags(),
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filter);
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}
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@Order(0)
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MeterFilter metricsHttpServerUriTagFilter(MetricsProperties metricsProperties,
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ObservationProperties observationProperties) {
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String name = observationProperties.getHttp().getServer().getRequests().getName();
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MeterFilter filter = new OnlyOnceLoggingDenyMeterFilter(
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() -> "Reached the maximum number of URI tags for '%s'.".formatted(name));
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return MeterFilter.maximumAllowableTags(name, "uri", metricsProperties.getWeb().getServer().getMaxUriTags(),
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filter);
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}
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}
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@ -16,12 +16,12 @@
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package org.springframework.boot.actuate.autoconfigure.observation.web.reactive;
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import java.util.List;
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import java.time.Duration;
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import java.time.temporal.ChronoUnit;
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import io.micrometer.core.instrument.MeterRegistry;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import reactor.core.publisher.Mono;
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import org.springframework.boot.actuate.autoconfigure.metrics.MetricsAutoConfiguration;
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import org.springframework.boot.actuate.autoconfigure.metrics.test.MetricsRun;
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@ -33,16 +33,6 @@ import org.springframework.boot.test.context.assertj.AssertableReactiveWebApplic
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import org.springframework.boot.test.context.runner.ReactiveWebApplicationContextRunner;
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import org.springframework.boot.test.system.CapturedOutput;
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import org.springframework.boot.test.system.OutputCaptureExtension;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.Ordered;
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import org.springframework.core.annotation.Order;
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import org.springframework.http.server.reactive.observation.DefaultServerRequestObservationConvention;
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import org.springframework.test.web.reactive.server.WebTestClient;
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import org.springframework.web.filter.reactive.ServerHttpObservationFilter;
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import org.springframework.web.server.ServerWebExchange;
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import org.springframework.web.server.WebFilter;
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import org.springframework.web.server.WebFilterChain;
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import static org.assertj.core.api.Assertions.assertThat;
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@ -54,7 +44,6 @@ import static org.assertj.core.api.Assertions.assertThat;
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* @author Madhura Bhave
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*/
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@ExtendWith(OutputCaptureExtension.class)
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@SuppressWarnings("removal")
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class WebFluxObservationAutoConfigurationTests {
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private final ReactiveWebApplicationContextRunner contextRunner = new ReactiveWebApplicationContextRunner()
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@ -62,31 +51,6 @@ class WebFluxObservationAutoConfigurationTests {
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.withConfiguration(
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AutoConfigurations.of(ObservationAutoConfiguration.class, WebFluxObservationAutoConfiguration.class));
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@Test
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void shouldProvideWebFluxObservationFilter() {
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this.contextRunner.run((context) -> assertThat(context).hasSingleBean(ServerHttpObservationFilter.class));
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}
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@Test
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void shouldProvideWebFluxObservationFilterOrdered() {
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this.contextRunner.withBean(FirstWebFilter.class).withBean(ThirdWebFilter.class).run((context) -> {
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List<WebFilter> webFilters = context.getBeanProvider(WebFilter.class).orderedStream().toList();
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assertThat(webFilters.get(0)).isInstanceOf(FirstWebFilter.class);
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assertThat(webFilters.get(1)).isInstanceOf(ServerHttpObservationFilter.class);
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assertThat(webFilters.get(2)).isInstanceOf(ThirdWebFilter.class);
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});
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}
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@Test
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void shouldUseCustomConventionWhenAvailable() {
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this.contextRunner.withUserConfiguration(CustomConventionConfiguration.class).run((context) -> {
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assertThat(context).hasSingleBean(ServerHttpObservationFilter.class);
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assertThat(context).getBean(ServerHttpObservationFilter.class)
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.extracting("observationConvention")
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.isInstanceOf(CustomConvention.class);
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});
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}
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@Test
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void afterMaxUrisReachedFurtherUrisAreDenied(CapturedOutput output) {
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this.contextRunner.withUserConfiguration(TestController.class)
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@ -108,7 +72,7 @@ class WebFluxObservationAutoConfigurationTests {
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.withPropertyValues("management.metrics.web.server.max-uri-tags=2",
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"management.observations.http.server.requests.name=my.http.server.requests")
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.run((context) -> {
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MeterRegistry registry = getInitializedMeterRegistry(context);
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MeterRegistry registry = getInitializedMeterRegistry(context, "my.http.server.requests");
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assertThat(registry.get("my.http.server.requests").meters()).hasSizeLessThanOrEqualTo(2);
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assertThat(output).contains("Reached the maximum number of URI tags for 'my.http.server.requests'");
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});
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@ -127,53 +91,17 @@ class WebFluxObservationAutoConfigurationTests {
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});
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}
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private MeterRegistry getInitializedMeterRegistry(AssertableReactiveWebApplicationContext context)
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throws Exception {
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return getInitializedMeterRegistry(context, "/test0", "/test1", "/test2");
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private MeterRegistry getInitializedMeterRegistry(AssertableReactiveWebApplicationContext context) {
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return getInitializedMeterRegistry(context, "http.server.requests");
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}
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private MeterRegistry getInitializedMeterRegistry(AssertableReactiveWebApplicationContext context, String... urls)
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throws Exception {
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assertThat(context).hasSingleBean(ServerHttpObservationFilter.class);
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WebTestClient client = WebTestClient.bindToApplicationContext(context).build();
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for (String url : urls) {
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client.get().uri(url).exchange().expectStatus().isOk();
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}
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return context.getBean(MeterRegistry.class);
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}
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@Configuration(proxyBeanMethods = false)
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static class CustomConventionConfiguration {
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@Bean
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CustomConvention customConvention() {
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return new CustomConvention();
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}
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}
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static class CustomConvention extends DefaultServerRequestObservationConvention {
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}
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@Order(Ordered.HIGHEST_PRECEDENCE)
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static class FirstWebFilter implements WebFilter {
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@Override
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public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
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return chain.filter(exchange);
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}
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}
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@Order(Ordered.HIGHEST_PRECEDENCE + 2)
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static class ThirdWebFilter implements WebFilter {
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@Override
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public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
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return chain.filter(exchange);
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}
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private MeterRegistry getInitializedMeterRegistry(AssertableReactiveWebApplicationContext context,
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String metricName) {
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MeterRegistry meterRegistry = context.getBean(MeterRegistry.class);
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meterRegistry.timer(metricName, "uri", "/test0").record(Duration.of(500, ChronoUnit.SECONDS));
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meterRegistry.timer(metricName, "uri", "/test1").record(Duration.of(500, ChronoUnit.SECONDS));
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meterRegistry.timer(metricName, "uri", "/test2").record(Duration.of(500, ChronoUnit.SECONDS));
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return meterRegistry;
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}
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}
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@ -245,9 +245,6 @@ When it does so, the orders shown in the following table will be used:
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|===
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| Web Filter | Order
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| `ServerHttpObservationFilter` (Micrometer Observability)
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| `Ordered.HIGHEST_PRECEDENCE + 1`
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| `WebFilterChainProxy` (Spring Security)
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| `-100`
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