Merge branch '2.4.x' into 2.5.x

Closes gh-26923

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/client/MetricsClientHttpRequestInterceptor.java

@@ -77,7 +77,7 @@ class MetricsClientHttpRequestInterceptor implements ClientHttpRequestIntercepto
 	@Override
 	public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution)
 			throws IOException {
-		if (!this.autoTimer.isEnabled()) {
+		if (!enabled()) {
 			return execution.execute(request, body);
 		}
 		long startTime = System.nanoTime();
@@ -100,6 +100,10 @@ class MetricsClientHttpRequestInterceptor implements ClientHttpRequestIntercepto
 		}
 	}
 
+	private boolean enabled() {
+		return this.autoTimer.isEnabled();
+	}
+
 	UriTemplateHandler createUriTemplateHandler(UriTemplateHandler delegate) {
 		if (delegate instanceof RootUriTemplateHandler) {
 			return ((RootUriTemplateHandler) delegate).withHandlerWrapper(CapturingUriTemplateHandler::new);
@@ -113,7 +117,7 @@ class MetricsClientHttpRequestInterceptor implements ClientHttpRequestIntercepto
 				.description("Timer of RestTemplate operation");
 	}
 
-	private static final class CapturingUriTemplateHandler implements UriTemplateHandler {
+	private final class CapturingUriTemplateHandler implements UriTemplateHandler {
 
 		private final UriTemplateHandler delegate;
 
@@ -123,13 +127,17 @@ class MetricsClientHttpRequestInterceptor implements ClientHttpRequestIntercepto
 
 		@Override
 		public URI expand(String url, Map<String, ?> arguments) {
-			urlTemplate.get().push(url);
+			if (enabled()) {
+				urlTemplate.get().push(url);
+			}
 			return this.delegate.expand(url, arguments);
 		}
 
 		@Override
 		public URI expand(String url, Object... arguments) {
-			urlTemplate.get().push(url);
+			if (enabled()) {
+				urlTemplate.get().push(url);
+			}
 			return this.delegate.expand(url, arguments);
 		}
 

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/metrics/web/client/MetricsRestTemplateCustomizerTests.java

@@ -19,10 +19,12 @@ package org.springframework.boot.actuate.metrics.web.client;
 import java.io.IOException;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import io.micrometer.core.instrument.MeterRegistry;
 import io.micrometer.core.instrument.MockClock;
 import io.micrometer.core.instrument.Tag;
+import io.micrometer.core.instrument.Timer.Builder;
 import io.micrometer.core.instrument.simple.SimpleConfig;
 import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
 import org.assertj.core.api.InstanceOfAssertFactories;
@@ -153,6 +155,39 @@ class MetricsRestTemplateCustomizerTests {
 				.extracting(RootUriTemplateHandler::getRootUri).isEqualTo("https://localhost:8443");
 	}
 
+	@Test
+	void whenAutoTimingIsDisabledUriTemplateHandlerDoesNotCaptureUris() {
+		AtomicBoolean enabled = new AtomicBoolean(false);
+		AutoTimer autoTimer = new AutoTimer() {
+
+			@Override
+			public boolean isEnabled() {
+				return enabled.get();
+			}
+
+			@Override
+			public void apply(Builder builder) {
+			}
+
+		};
+		RestTemplate restTemplate = new RestTemplateBuilder(new MetricsRestTemplateCustomizer(this.registry,
+				new DefaultRestTemplateExchangeTagsProvider(), "http.client.requests", autoTimer)).build();
+		MockRestServiceServer mockServer = MockRestServiceServer.createServer(restTemplate);
+		mockServer.expect(MockRestRequestMatchers.requestTo("/first/123"))
+				.andExpect(MockRestRequestMatchers.method(HttpMethod.GET))
+				.andRespond(MockRestResponseCreators.withSuccess("OK", MediaType.APPLICATION_JSON));
+		mockServer.expect(MockRestRequestMatchers.requestTo("/second/456"))
+				.andExpect(MockRestRequestMatchers.method(HttpMethod.GET))
+				.andRespond(MockRestResponseCreators.withSuccess("OK", MediaType.APPLICATION_JSON));
+		assertThat(restTemplate.getForObject("/first/{id}", String.class, 123)).isEqualTo("OK");
+		assertThat(this.registry.find("http.client.requests").timer()).isNull();
+		enabled.set(true);
+		assertThat(restTemplate.getForObject(URI.create("/second/456"), String.class)).isEqualTo("OK");
+		this.registry.get("http.client.requests").tags("uri", "/second/456").timer();
+		this.mockServer.verify();
+
+	}
+
 	private static final class TestInterceptor implements ClientHttpRequestInterceptor {
 
 		private final RestTemplate restTemplate;