diff --git a/spring-modulith-observability/pom.xml b/spring-modulith-observability/pom.xml
index 6a285292..27254a68 100644
--- a/spring-modulith-observability/pom.xml
+++ b/spring-modulith-observability/pom.xml
@@ -83,12 +83,6 @@
true
-
- io.zipkin.brave
- brave
- true
-
-
io.opentelemetry
opentelemetry-api
@@ -120,6 +114,12 @@
spring-rabbit
test
+
+
+ io.zipkin.brave
+ brave
+ test
+
diff --git a/spring-modulith-observability/src/main/java/org/springframework/modulith/observability/LocalServiceRenamingSpanFilter.java b/spring-modulith-observability/src/main/java/org/springframework/modulith/observability/LocalServiceRenamingSpanFilter.java
new file mode 100644
index 00000000..40cc0cf0
--- /dev/null
+++ b/spring-modulith-observability/src/main/java/org/springframework/modulith/observability/LocalServiceRenamingSpanFilter.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.modulith.observability;
+
+import io.micrometer.tracing.exporter.FinishedSpan;
+import io.micrometer.tracing.exporter.SpanFilter;
+
+/**
+ * {@link SpanFilter} that sets a local service name according to the current module's name.
+ *
+ * @author Marcin Grzejszczak
+ * @since 1.4
+ */
+public class LocalServiceRenamingSpanFilter implements SpanFilter {
+
+ /*
+ * (non-Javadoc)
+ * @see io.micrometer.tracing.exporter.SpanFilter#map(io.micrometer.tracing.exporter.FinishedSpan)
+ */
+ @Override
+ public FinishedSpan map(FinishedSpan span) {
+
+ String moduleKey = span.getTags().get(ModulithObservations.LowKeys.MODULE_KEY.asString());
+
+ if (moduleKey != null) {
+ span.setLocalServiceName(moduleKey);
+ }
+
+ return span;
+ }
+}
diff --git a/spring-modulith-observability/src/main/java/org/springframework/modulith/observability/autoconfigure/ModuleObservabilityAutoConfiguration.java b/spring-modulith-observability/src/main/java/org/springframework/modulith/observability/autoconfigure/ModuleObservabilityAutoConfiguration.java
index d7c41088..53c15930 100644
--- a/spring-modulith-observability/src/main/java/org/springframework/modulith/observability/autoconfigure/ModuleObservabilityAutoConfiguration.java
+++ b/spring-modulith-observability/src/main/java/org/springframework/modulith/observability/autoconfigure/ModuleObservabilityAutoConfiguration.java
@@ -15,16 +15,12 @@
*/
package org.springframework.modulith.observability.autoconfigure;
-import brave.handler.MutableSpan;
-import brave.handler.SpanHandler;
-import brave.propagation.TraceContext;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.observation.ObservationFilter;
import io.micrometer.observation.ObservationRegistry;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.condition.ConditionalOnThreading;
import org.springframework.boot.autoconfigure.thread.Threading;
@@ -34,6 +30,7 @@ import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.task.support.ContextPropagatingTaskDecorator;
+import org.springframework.modulith.observability.LocalServiceRenamingSpanFilter;
import org.springframework.modulith.observability.ModuleEventListener;
import org.springframework.modulith.observability.ModuleObservabilityBeanPostProcessor;
import org.springframework.modulith.observability.ModulePassingObservationFilter;
@@ -76,26 +73,9 @@ class ModuleObservabilityAutoConfiguration {
return new ModulePassingObservationFilter();
}
- @Configuration(proxyBeanMethods = false)
- @ConditionalOnClass(SpanHandler.class)
- static class BraveConfiguration {
- /**
- * Corresponds to {@link ModulithObservations.LowKeys#MODULE_KEY}
- */
- private static final String MODULE_KEY_TAG_NAME = "module.key";
-
- @Bean
- SpanHandler localServiceNameRenamingSpanHandler() {
- return new SpanHandler() {
- @Override public boolean end(TraceContext context, MutableSpan span, Cause cause) {
- String tag = span.tag(MODULE_KEY_TAG_NAME);
- if (tag != null) {
- span.localServiceName(tag);
- }
- return super.end(context, span, cause);
- }
- };
- }
+ @Bean
+ LocalServiceRenamingSpanFilter localServiceRenamingSpanFilter() {
+ return new LocalServiceRenamingSpanFilter();
}
}