Load Balancer EIP example
diff --git a/README.adoc b/README.adoc
index 2fd91e4..d169916 100644
--- a/README.adoc
+++ b/README.adoc
@@ -27,7 +27,7 @@
== Examples
// examples: START
-Number of Examples: 45 (0 deprecated)
+Number of Examples: 46 (0 deprecated)
[width="100%",cols="4,2,4",options="header"]
|===
@@ -43,6 +43,8 @@
| link:camel-example-spring-boot-jira/README.adoc[Spring Boot Jira] (camel-example-spring-boot-jira) | Beginner | An example that uses Jira Camel API
+| link:camel-example-spring-boot-load-balancer-eip/README.adoc[Spring Boot Load Balancer Eip] (camel-example-spring-boot-load-balancer-eip) | Beginner | An example showing Load Balancer EIP with Camel and Spring Boot
+
| link:camel-example-spring-boot-pojo/README.adoc[Spring Boot Pojo] (camel-example-spring-boot-pojo) | Beginner | An example showing how to work with Camel POJO routing with Spring Boot
| link:camel-example-spring-boot-rest-openapi-simple/README.adoc[REST OpenApi] (camel-example-spring-boot-rest-openapi-simple) | Beginner | This example shows how to call a Rest service defined using OpenApi specification
diff --git a/camel-example-spring-boot-load-balancer-eip/README.adoc b/camel-example-spring-boot-load-balancer-eip/README.adoc
new file mode 100644
index 0000000..ad02800
--- /dev/null
+++ b/camel-example-spring-boot-load-balancer-eip/README.adoc
@@ -0,0 +1,31 @@
+== Camel Example Spring Boot
+
+This example shows several examples of Load Balancer EIP with Apache Camel application using Spring Boot.
+
+1. Round-robin - The exchanges are selected from in a round robin fashion. This is a well known and classic policy, which spreads the load evenly.
+2. Random load - A random endpoint is selected for each exchange.
+3. Sticky - Sticky load balancing using an Expression to calculate a correlation key to perform the sticky load balancing; rather like jsessionid in the web or JMSXGroupID in JMS.
+4. Topic - Topic which sends to all destinations (rather like JMS Topics)
+5. Failover - In case of failures the exchange will be tried on the next endpoint.
+6. Weighted round-robin - The weighted load balancing policy allows you to specify a processing load distribution ratio for each server with respect to the others. In addition to the weight, endpoint selection is then further refined using round-robin distribution based on weight.
+7. Custom - The preferred way of using a custom Load Balancer is to use this policy, as the ref attribute is not supported anymore.
+
+=== How to run
+
+You can run this example using
+
+ mvn test
+
+
+=== Help and contributions
+
+If you hit any problem using Camel or have some feedback, then please
+https://camel.apache.org/support.html[let us know].
+
+We also love contributors, so
+https://camel.apache.org/contributing.html[get involved] :-)
+
+The Camel riders!
+
+
+
diff --git a/camel-example-spring-boot-load-balancer-eip/pom.xml b/camel-example-spring-boot-load-balancer-eip/pom.xml
new file mode 100644
index 0000000..33e24cb
--- /dev/null
+++ b/camel-example-spring-boot-load-balancer-eip/pom.xml
@@ -0,0 +1,130 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <parent>
+ <artifactId>examples</artifactId>
+ <groupId>org.apache.camel.springboot.example</groupId>
+ <version>3.7.0-SNAPSHOT</version>
+ </parent>
+ <modelVersion>4.0.0</modelVersion>
+
+ <artifactId>camel-example-spring-boot-load-balancer-eip</artifactId>
+ <name>Camel SB Examples :: Custom Type Converter</name>
+ <description>An example showing Load Balancer EIP with Camel and Spring Boot</description>
+
+ <properties>
+ <category>Beginner</category>
+
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+ <spring.boot-version>${spring-boot-version}</spring.boot-version>
+ </properties>
+
+ <dependencyManagement>
+ <dependencies>
+ <!-- Spring Boot BOM -->
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-dependencies</artifactId>
+ <version>${spring.boot-version}</version>
+ <type>pom</type>
+ <scope>import</scope>
+ </dependency>
+ <!-- Camel BOM -->
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-spring-boot-bom</artifactId>
+ <version>${camel-version}</version>
+ <type>pom</type>
+ <scope>import</scope>
+ </dependency>
+ </dependencies>
+ </dependencyManagement>
+
+ <dependencies>
+
+ <!-- Spring Boot -->
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter</artifactId>
+ </dependency>
+ <!-- Camel -->
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-spring-boot-starter</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.camel.springboot</groupId>
+ <artifactId>camel-stream-starter</artifactId>
+ </dependency>
+
+ <!-- test -->
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-test</artifactId>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.camel</groupId>
+ <artifactId>camel-test-spring-junit5</artifactId>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-maven-plugin</artifactId>
+ <version>${spring-boot-version}</version>
+ <executions>
+ <execution>
+ <goals>
+ <goal>repackage</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ <!-- Camel Maven Package Plugin to generate Type Converter Loader source code - Camel 3.x way -->
+ <plugin>
+ <groupId>org.codehaus.mojo</groupId>
+ <artifactId>build-helper-maven-plugin</artifactId>
+ <executions>
+ <execution>
+ <phase>initialize</phase>
+ <goals>
+ <goal>add-source</goal>
+ <goal>add-resource</goal>
+ </goals>
+ <configuration>
+ <sources>
+ <source>src/generated/java</source>
+ </sources>
+ <resources>
+ <resource>
+ <directory>src/generated/resources</directory>
+ </resource>
+ </resources>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ <!-- Adds mgenerated Type Converter Loader source in src/generated to the source path - Camel 3.x way -->
+ <plugin>
+ <groupId>org.apache.camel</groupId>
+ <artifactId>camel-package-maven-plugin</artifactId>
+ <version>${camel-version}</version>
+ <executions>
+ <execution>
+ <id>generate</id>
+ <goals>
+ <goal>generate-component</goal>
+ </goals>
+ <phase>process-classes</phase>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+</project>
\ No newline at end of file
diff --git a/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/Application.java b/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/Application.java
new file mode 100644
index 0000000..4eeaa6d
--- /dev/null
+++ b/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/Application.java
@@ -0,0 +1,29 @@
+/*
+ * 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 sample.camel;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+ public static void main(String[] args) {
+ SpringApplication.run(Application.class, args);
+ }
+
+}
diff --git a/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/CustomLoadBalancer.java b/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/CustomLoadBalancer.java
new file mode 100644
index 0000000..90229ec
--- /dev/null
+++ b/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/CustomLoadBalancer.java
@@ -0,0 +1,23 @@
+package sample.camel;
+
+import org.apache.camel.AsyncCallback;
+import org.apache.camel.Exchange;
+import org.apache.camel.processor.loadbalancer.LoadBalancerSupport;
+
+public class CustomLoadBalancer extends LoadBalancerSupport {
+ @Override
+ public boolean process(Exchange exchange, AsyncCallback callback) {
+ String body = exchange.getIn().getBody(String.class);
+ try {
+ if ("AE".contains(body)){
+ getProcessors().get(0).process(exchange);
+ } else if ("BCD".contains(body))
+ getProcessors().get(1).process(exchange);
+ }
+ catch (Exception e) {
+ exchange.setException(e);
+ }
+ callback.done(true);
+ return true;
+ }
+}
\ No newline at end of file
diff --git a/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/LoadBalancerEIPRouter.java b/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/LoadBalancerEIPRouter.java
new file mode 100644
index 0000000..a8d7cb2
--- /dev/null
+++ b/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/LoadBalancerEIPRouter.java
@@ -0,0 +1,120 @@
+package sample.camel;
+
+import org.apache.camel.builder.RouteBuilder;
+
+import org.springframework.stereotype.Component;
+
+@Component
+public class LoadBalancerEIPRouter extends RouteBuilder {
+ @Override
+ public void configure() throws Exception {
+ // @formatter:off
+
+ // round-robin load balancer
+ from("direct:loadbalancer-round-robin")
+ .loadBalance().roundRobin()
+ .to("mock:a")
+ .to("mock:b")
+ .end();
+
+
+ // random load balancer
+ from("direct:loadbalancer-random")
+ .loadBalance().random()
+ .to("mock:c")
+ .to("mock:d");
+
+
+ // sticky load balancer
+ from("direct:loadbalancer-sticky")
+ // load balancer with sticky strategy
+ .loadBalance()
+ // expression parameter to calculate the correlation key
+ .sticky(header("correlation-key"))
+ // load balance across 2 producers
+ .to("mock:e").to("mock:f")
+ .end();
+
+
+ // topic ("fan out") load-balancer
+ from("direct:loadbalancer-topic")
+ .loadBalance().topic()
+ .to("mock:j", "mock:k");
+
+
+ // failover load-balancer
+ from("direct:loadbalancer-failover")
+ .loadBalance()
+ // failover on this Exception to subsequent producer
+ .failover(MyException.class)
+ .to("direct:l", "direct:m");
+
+ from("direct:l")
+ .choice()
+ .when(body().isEqualTo("E"))
+ .throwException(new MyException("direct:l"))
+ .end()
+ .end()
+ .to("mock:l");
+
+ from("direct:m")
+ .to("mock:m");
+ // END of failover load-balancer
+
+
+
+ // failover load-balancer round robin without error handler
+ from("direct:loadbalancer-failover-round-robin-no-error-handler")
+ .loadBalance()
+ // failover immediately in case of exception and do not use errorHandler
+ .failover(-1, false, true, MyException.class, Exception.class)
+ .to("direct:n", "direct:o", "direct:p", "direct:q");
+
+ from("direct:n")
+ .choice()
+ .when(constant(true))
+ .throwException(new MyException("from direct:n"))
+ .end()
+ .end()
+ .to("mock:n");
+
+ from("direct:o")
+ .choice()
+ .when(constant(true))
+ .throwException(new MyException("from direct:n"))
+ .end()
+ .end()
+ .to("mock:o");
+
+ from("direct:p")
+ .choice()
+ .when(body().isEqualTo("E"))
+ .throwException(new RuntimeException())
+ .end()
+ .end()
+ .to("mock:p");
+
+ from("direct:q")
+ .to("mock:q");
+ // END of failover load-balancer round robin without error handler
+
+
+ // weighted load-balancer round robin
+ String distributionRatio = "2,1";
+
+ from("direct:loadbalancer-weighted-round-robin")
+ .loadBalance().weighted(true, distributionRatio)
+ .to("mock:w", "mock:x");
+ // ENF of weighted load-balancer round robin
+
+
+ // custom load balancer
+ from ("direct:loadbalancer-custom")
+ // custom load balancer
+ .loadBalance(new CustomLoadBalancer())
+ .to("mock:g", "mock:h");
+
+ // @formatter:off
+ }
+
+}
diff --git a/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/MyException.java b/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/MyException.java
new file mode 100644
index 0000000..bb6f94f
--- /dev/null
+++ b/camel-example-spring-boot-load-balancer-eip/src/main/java/sample/camel/MyException.java
@@ -0,0 +1,11 @@
+package sample.camel;
+
+public class MyException extends RuntimeException {
+
+ MyException() {
+ }
+
+ MyException(String message) {
+ super(message);
+ }
+}
diff --git a/camel-example-spring-boot-load-balancer-eip/src/main/resources/application.properties b/camel-example-spring-boot-load-balancer-eip/src/main/resources/application.properties
new file mode 100644
index 0000000..1f06b56
--- /dev/null
+++ b/camel-example-spring-boot-load-balancer-eip/src/main/resources/application.properties
@@ -0,0 +1,10 @@
+# the name of Camel
+camel.springboot.name = CamelLoadBalancerExample
+
+# to configure logging levels
+logging.level.org.springframework = INFO
+logging.level.org.apache.camel.spring.boot = INFO
+logging.level.org.apache.camel.impl = INFO
+logging.level.org.apache.camel = INFO
+logging.level.sample.camel = INFO
+#logging.level.sample.camel = DEBUG
diff --git a/camel-example-spring-boot-load-balancer-eip/src/test/java/LoadBalancerEIPTest.java b/camel-example-spring-boot-load-balancer-eip/src/test/java/LoadBalancerEIPTest.java
new file mode 100644
index 0000000..a998dff
--- /dev/null
+++ b/camel-example-spring-boot-load-balancer-eip/src/test/java/LoadBalancerEIPTest.java
@@ -0,0 +1,170 @@
+package com.fg7;
+
+import org.apache.camel.CamelContext;
+import org.apache.camel.ProducerTemplate;
+import org.apache.camel.component.mock.MockEndpoint;
+import org.apache.camel.test.spring.junit5.CamelSpringBootTest;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import sample.camel.Application;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@CamelSpringBootTest
+@SpringBootTest(classes = Application.class)
+public class LoadBalancerEIPTest {
+
+ @Autowired
+ private CamelContext camelContext;
+
+ private ProducerTemplate producerTemplate;
+
+ @BeforeEach
+ public void setUp() {
+ producerTemplate = camelContext.createProducerTemplate();
+ }
+
+ @Test
+ public void testLoadBalancer() throws InterruptedException {
+ MockEndpoint mockA = camelContext.getEndpoint("mock:a", MockEndpoint.class);
+ MockEndpoint mockB = camelContext.getEndpoint("mock:b", MockEndpoint.class);
+
+ mockA.expectedBodiesReceived("A", "C");
+ mockB.expectedBodiesReceived("B", "D");
+
+ producerTemplate.sendBody("direct:loadbalancer-round-robin", "A");
+ producerTemplate.sendBody("direct:loadbalancer-round-robin", "B");
+ producerTemplate.sendBody("direct:loadbalancer-round-robin", "C");
+ producerTemplate.sendBody("direct:loadbalancer-round-robin", "D");
+
+ MockEndpoint.assertIsSatisfied(camelContext);
+ }
+
+
+ @Test
+ public void testRandomLoadBalancer() {
+ MockEndpoint mockC = camelContext.getEndpoint("mock:c", MockEndpoint.class);
+ MockEndpoint mockD = camelContext.getEndpoint("mock:d", MockEndpoint.class);
+
+ for (int i = 0 ; i < 10 ; i++){
+ producerTemplate.sendBody("direct:loadbalancer-random", i);
+ }
+
+ assertEquals(10, mockC.getReceivedCounter() + mockD.getReceivedCounter());
+ }
+
+ @Test
+ public void testStickyLoadBalancer() throws InterruptedException {
+ MockEndpoint mockE = camelContext.getEndpoint("mock:e", MockEndpoint.class);
+ MockEndpoint mockF = camelContext.getEndpoint("mock:f", MockEndpoint.class);
+
+ mockE.expectedBodiesReceived("A", "E");
+ mockF.expectedBodiesReceived("B", "C", "D");
+
+ producerTemplate.sendBodyAndHeader("direct:loadbalancer-sticky", "A", "correlation-key", "vowel");
+ producerTemplate.sendBodyAndHeader("direct:loadbalancer-sticky", "B", "correlation-key", "consonant");
+ producerTemplate.sendBodyAndHeader("direct:loadbalancer-sticky", "C", "correlation-key", "consonant");
+ producerTemplate.sendBodyAndHeader("direct:loadbalancer-sticky", "D", "correlation-key", "consonant");
+ producerTemplate.sendBodyAndHeader("direct:loadbalancer-sticky", "E", "correlation-key", "vowel");
+
+ MockEndpoint.assertIsSatisfied(camelContext);
+ }
+
+ @Test
+ public void testTopicLoadBalancer() throws Exception {
+ MockEndpoint mockJ = camelContext.getEndpoint("mock:j", MockEndpoint.class);
+ MockEndpoint mockK = camelContext.getEndpoint("mock:k", MockEndpoint.class);
+
+ mockJ.expectedBodiesReceived("A", "B", "C", "D", "E");
+ mockK.expectedBodiesReceived("A", "B", "C", "D", "E");
+
+ producerTemplate.sendBody("direct:loadbalancer-topic", "A");
+ producerTemplate.sendBody("direct:loadbalancer-topic", "B");
+ producerTemplate.sendBody("direct:loadbalancer-topic", "C");
+ producerTemplate.sendBody("direct:loadbalancer-topic", "D");
+ producerTemplate.sendBody("direct:loadbalancer-topic", "E");
+
+ MockEndpoint.assertIsSatisfied(camelContext);
+ }
+
+ @Test
+ public void testFailoverLoadBalancer() throws Exception {
+ MockEndpoint mockL = camelContext.getEndpoint("mock:l", MockEndpoint.class);
+ MockEndpoint mockM = camelContext.getEndpoint("mock:m", MockEndpoint.class);
+
+ mockL.expectedBodiesReceived("A", "B", "C", "D");
+ mockM.expectedBodiesReceived("E");
+
+ producerTemplate.sendBody("direct:loadbalancer-failover", "A");
+ producerTemplate.sendBody("direct:loadbalancer-failover", "B");
+ producerTemplate.sendBody("direct:loadbalancer-failover", "C");
+ producerTemplate.sendBody("direct:loadbalancer-failover", "E");
+ producerTemplate.sendBody("direct:loadbalancer-failover", "D");
+
+ MockEndpoint.assertIsSatisfied(camelContext);
+ }
+
+ @Test
+ public void testFailoverRoundRobinLoadBalancer() throws Exception {
+ MockEndpoint mockN = camelContext.getEndpoint("mock:n", MockEndpoint.class);
+ MockEndpoint mockO = camelContext.getEndpoint("mock:o", MockEndpoint.class);
+ MockEndpoint mockP = camelContext.getEndpoint("mock:p", MockEndpoint.class);
+ MockEndpoint mockQ = camelContext.getEndpoint("mock:q", MockEndpoint.class);
+
+ mockN.expectedMessageCount(0);
+ mockO.expectedMessageCount(0);
+ mockP.expectedBodiesReceived("A", "C");
+ mockQ.expectedBodiesReceived("B", "D", "E");
+
+ producerTemplate.sendBody("direct:loadbalancer-failover-round-robin-no-error-handler", "A");
+ producerTemplate.sendBody("direct:loadbalancer-failover-round-robin-no-error-handler", "B");
+ producerTemplate.sendBody("direct:loadbalancer-failover-round-robin-no-error-handler", "C");
+ producerTemplate.sendBody("direct:loadbalancer-failover-round-robin-no-error-handler", "D");
+ producerTemplate.sendBody("direct:loadbalancer-failover-round-robin-no-error-handler", "E");
+
+ MockEndpoint.assertIsSatisfied(camelContext);
+ }
+
+ @Test
+ public void testWeightedRoundRobinLoadBalancer() throws Exception {
+ MockEndpoint mockW = camelContext.getEndpoint("mock:w", MockEndpoint.class);
+ MockEndpoint mockX = camelContext.getEndpoint("mock:x", MockEndpoint.class);
+
+ mockW.expectedBodiesReceived("A", "C", "D", "F", "G", "J", "K");
+ mockX.expectedBodiesReceived("B", "E", "H");
+
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "A"); // W
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "B"); // X
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "C"); // W
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "D"); // W
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "E"); // X
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "F"); // W
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "G"); // W
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "H"); // X
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "J"); // W
+ producerTemplate.sendBody("direct:loadbalancer-weighted-round-robin", "K"); // W
+
+ MockEndpoint.assertIsSatisfied(camelContext);
+ }
+
+ @Test
+ public void testCustomLoadBalancer() throws InterruptedException {
+ MockEndpoint mockG = camelContext.getEndpoint("mock:g", MockEndpoint.class);
+ MockEndpoint mockH = camelContext.getEndpoint("mock:h", MockEndpoint.class);
+
+ mockG.expectedBodiesReceived("A", "E");
+ mockH.expectedBodiesReceived("B", "C", "D");
+
+ producerTemplate.sendBody("direct:loadbalancer-custom", "A");
+ producerTemplate.sendBody("direct:loadbalancer-custom", "B");
+ producerTemplate.sendBody("direct:loadbalancer-custom", "C");
+ producerTemplate.sendBody("direct:loadbalancer-custom", "D");
+ producerTemplate.sendBody("direct:loadbalancer-custom", "E");
+
+ MockEndpoint.assertIsSatisfied(camelContext);
+ }
+
+}
diff --git a/pom.xml b/pom.xml
index 3b4f304..67328a4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -53,6 +53,7 @@
<module>camel-example-spring-boot-jira</module>
<module>camel-example-spring-boot-kafka-avro</module>
<module>camel-example-spring-boot-kafka-offsetrepository</module>
+ <module>camel-example-spring-boot-load-balancer-eip</module>
<module>camel-example-spring-boot-master</module>
<module>camel-example-spring-boot-metrics</module>
<module>camel-example-spring-boot-opentracing</module>