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gnodet pushed a commit to branch main
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The following commit(s) were added to refs/heads/main by this push:
new 4abe848cd4d0 chore: Enable simple tracer standby in dev profile
4abe848cd4d0 is described below
commit 4abe848cd4d08c9a0b5e8cb658abaadfbf7cf18b
Author: Guillaume Nodet <[email protected]>
AuthorDate: Thu May 21 14:43:15 2026 +0200
chore: Enable simple tracer standby in dev profile
- Enable simple log tracer standby (tracingStandby) in dev profile,
matching backlog tracer
- Users can toggle log-based tracing at runtime in dev mode without restart
- Add tests and update tracer.adoc documentation
---
.../org/apache/camel/main/ProfileConfigurer.java | 3 +
.../main/MainDevProfileTracingStandbyTest.java | 85 ++++++++++++++++++++++
docs/user-manual/modules/ROOT/pages/tracer.adoc | 3 +
3 files changed, 91 insertions(+)
diff --git
a/core/camel-main/src/main/java/org/apache/camel/main/ProfileConfigurer.java
b/core/camel-main/src/main/java/org/apache/camel/main/ProfileConfigurer.java
index 983e4dc1e530..dd6b6b5643f5 100644
--- a/core/camel-main/src/main/java/org/apache/camel/main/ProfileConfigurer.java
+++ b/core/camel-main/src/main/java/org/apache/camel/main/ProfileConfigurer.java
@@ -49,6 +49,9 @@ public class ProfileConfigurer {
if (!enabled) {
config.tracerConfig().withStandby(true);
}
+ if (!config.isTracing()) {
+ config.setTracingStandby(true);
+ }
}
if ("dev".equals(profile)) {
diff --git
a/core/camel-main/src/test/java/org/apache/camel/main/MainDevProfileTracingStandbyTest.java
b/core/camel-main/src/test/java/org/apache/camel/main/MainDevProfileTracingStandbyTest.java
new file mode 100644
index 000000000000..12efd09d0674
--- /dev/null
+++
b/core/camel-main/src/test/java/org/apache/camel/main/MainDevProfileTracingStandbyTest.java
@@ -0,0 +1,85 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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
+ *
+ * http://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.apache.camel.main;
+
+import org.apache.camel.CamelContext;
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.spi.Tracer;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class MainDevProfileTracingStandbyTest {
+
+ @Test
+ public void testDevProfileEnablesTracingStandby() {
+ Main main = new Main();
+ main.configure().withProfile("dev");
+
+ main.start();
+ try {
+ CamelContext context = main.getCamelContext();
+ assertTrue(context.isTracingStandby(),
+ "dev profile should enable tracing standby");
+ } finally {
+ main.stop();
+ }
+ }
+
+ @Test
+ public void testDevProfileTracingCanBeEnabledAtRuntime() throws Exception {
+ Main main = new Main();
+ main.configure().withProfile("dev");
+ main.configure().addRoutesBuilder(new RouteBuilder() {
+ @Override
+ public void configure() {
+ from("direct:start").to("mock:result");
+ }
+ });
+
+ main.start();
+ try {
+ CamelContext context = main.getCamelContext();
+ Tracer tracer = context.getTracer();
+ assertFalse(tracer.isEnabled(),
+ "tracer should be in standby (not enabled) by default in
dev mode");
+
+ tracer.setEnabled(true);
+ assertTrue(tracer.isEnabled(),
+ "tracer should be enableable at runtime in dev mode");
+ } finally {
+ main.stop();
+ }
+ }
+
+ @Test
+ public void testProdProfileDoesNotEnableTracingStandby() {
+ Main main = new Main();
+ main.configure().withProfile("prod");
+
+ main.start();
+ try {
+ CamelContext context = main.getCamelContext();
+ assertFalse(context.isTracingStandby(),
+ "prod profile should not enable tracing standby");
+ } finally {
+ main.stop();
+ }
+ }
+
+}
diff --git a/docs/user-manual/modules/ROOT/pages/tracer.adoc
b/docs/user-manual/modules/ROOT/pages/tracer.adoc
index 5b42ae28f3fd..dbcbddb6f5cf 100644
--- a/docs/user-manual/modules/ROOT/pages/tracer.adoc
+++ b/docs/user-manual/modules/ROOT/pages/tracer.adoc
@@ -45,6 +45,9 @@ camel.main.tracing = true
By default, Camel optimizes and opt-out tracing. Therefore, you would either
have to enable tracing from the startup,
or turn on standby mode, to allow tracing to be enabled later during runtime.
+NOTE: When using Camel Main or Camel JBang with the `dev` profile (the
default), tracing standby is automatically enabled.
+This means you can toggle tracing on and off at runtime without needing to
restart.
+
To set tracing in standby mode you can do:
[tabs]
