new example: spring boot packaging

spring-boot-packaging/README.md

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+# Spring Boot packaging for Camel
+
+## Goals
+
+Spring Boot enables you to package your Camel routes along with any required
+dependency. A "fat jar" is produced and can be run with just a `java -jar /path/to/app.jar`.
+
+In this example, we will package the Camel routes as a Spring Boot application.
+
+## How this project has been created
+
+Generate a new Maven project using the `camel-archetype-spring-boot` archetype:
+```
+mvn archetype:generate -DarchetypeGroupId=org.apache.camel.archetypes -DarchetypeArtifactId=camel-archetype-spring-boot -DarchetypeVersion=2.21.1 -DinteractiveMode=false -DgroupId=fr.itix.camel-examples -DartifactId=spring-boot-packaging -Dversion=1.0-SNAPSHOT -Dpackage=fr.itix.camel.spring_boot_packaging
+```
+
+By default, the `camel-archetype-spring-boot` archetype creates a sample route
+using the Java DSL. In this example, we will use the Spring DSL, so you can remove
+the two following classes:
+```
+rm src/main/java/fr/itix/camel/spring_boot_packaging/MySpringBean.java
+rm src/main/java/fr/itix/camel/spring_boot_packaging/MySpringBootRouter.java
+```
+
+Create a `camel` directory in `src/main/resources`:
+```
+mkdir src/main/resources/camel/
+```
+
+Create an `hello-world.xml` file in the newly created `camel` directory with
+this content:
+```
+<routes xmlns="http://camel.apache.org/schema/spring">
+  <route id="hello-world">
+    <from uri="timer:hello?period=1000"/>
+    <log message="Hello, world !" />
+  </route>
+</routes>
+```
+
+## Try it !
+
+Each time you changed something in your `camel-context.xml`, you will have
+to re-run Camel with:
+```
+mvn package spring-boot:run
+```
+
+If you followed the instructions, you should have something like this:
+```
+[INFO] --- spring-boot-maven-plugin:1.5.12.RELEASE:run (default-cli) @ spring-boot-packaging ---
+
+  .   ____          _            __ _ _
+ /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
+( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
+ \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
+  '  |____| .__|_| |_|_| |_\__, | / / / /
+ =========|_|==============|___/=/_/_/_/
+ :: Spring Boot ::       (v1.5.12.RELEASE)
+
+2018-06-05 12:40:51.475  INFO 24580 --- [           main] f.i.c.s.MySpringBootApplication          : Starting MySpringBootApplication on nmasse-OSX.local with PID 24580 (/Users/nmasse/git/perso/Camel-Examples/spring-boot-packaging/target/classes started by nmasse in /Users/nmasse/git/perso/Camel-Examples/spring-boot-packaging)
+2018-06-05 12:40:51.477  INFO 24580 --- [           main] f.i.c.s.MySpringBootApplication          : No active profile set, falling back to default profiles: default
+
+[...]
+
+2018-06-05 12:40:54.527  INFO 24580 --- [           main] o.a.camel.spring.boot.RoutesCollector    : Loading additional Camel XML routes from: classpath:camel/*.xml
+2018-06-05 12:40:55.006  INFO 24580 --- [           main] o.a.camel.spring.boot.RoutesCollector    : Loading additional Camel XML rests from: classpath:camel-rest/*.xml
+2018-06-05 12:40:55.020  INFO 24580 --- [           main] o.a.camel.spring.SpringCamelContext      : Apache Camel 2.21.1 (CamelContext: MyCamel) is starting
+2018-06-05 12:40:55.021  INFO 24580 --- [           main] o.a.c.m.ManagedManagementStrategy        : JMX is enabled
+2018-06-05 12:40:55.190  INFO 24580 --- [           main] o.a.camel.spring.SpringCamelContext      : StreamCaching is not in use. If using streams then its recommended to enable stream caching. See more details at http://camel.apache.org/stream-caching.html
+2018-06-05 12:40:55.205  INFO 24580 --- [           main] o.a.camel.spring.SpringCamelContext      : Route: hello-world started and consuming from: timer://hello?period=1000
+2018-06-05 12:40:55.207  INFO 24580 --- [           main] o.a.camel.spring.SpringCamelContext      : Total 1 routes, of which 1 are started
+2018-06-05 12:40:55.207  INFO 24580 --- [           main] o.a.camel.spring.SpringCamelContext      : Apache Camel 2.21.1 (CamelContext: MyCamel) started in 0.187 seconds
+2018-06-05 12:40:55.263  INFO 24580 --- [           main] b.c.e.u.UndertowEmbeddedServletContainer : Undertow started on port(s) 8080 (http)
+2018-06-05 12:40:55.271  INFO 24580 --- [           main] f.i.c.s.MySpringBootApplication          : Started MySpringBootApplication in 4.173 seconds (JVM running for 7.038)
+2018-06-05 12:40:56.222  INFO 24580 --- [- timer://hello] hello-world                              : Hello, world !
+2018-06-05 12:40:57.216  INFO 24580 --- [- timer://hello] hello-world                              : Hello, world !
+2018-06-05 12:40:58.216  INFO 24580 --- [- timer://hello] hello-world                              : Hello, world !
+2018-06-05 12:40:59.217  INFO 24580 --- [- timer://hello] hello-world                              : Hello, world !
+```
+
+Note: you will have to press Ctrl-C to exit this Hello World example!
+
+## Packaging
+
+As you might have noticed, by default this archetype generates a fat jar:
+```
+$ ls -lh target/*.jar
+-rw-r--r--  1 nmasse  staff    21M Jun  5 12:40 target/spring-boot-packaging-1.0-SNAPSHOT.jar
+```
+
+When ready, you can copy the fat jar on another server and run it:
+```
+java -jar target/spring-boot-packaging-1.0-SNAPSHOT.jar
+```
+
+## References
+
+- [Camel Archetypes](http://camel.apache.org/camel-maven-archetypes.html)
+- [Spring Boot support for Camel](http://camel.apache.org/spring-boot.html)

spring-boot-packaging/pom.xml

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+<?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/maven-v4_0_0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>fr.itix.camel-examples</groupId>
+  <artifactId>spring-boot-packaging</artifactId>
+  <packaging>jar</packaging>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>A Camel Spring Boot Route</name>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    <spring.boot-version>1.5.12.RELEASE</spring.boot-version>
+  </properties>
+
+  <dependencyManagement>
+    <dependencies>
+      <!-- Spring Boot BOM -->
+      <dependency>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-dependencies</artifactId>
+        <version>${spring.boot-version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+      <!-- Camel BOM -->
+      <dependency>
+        <groupId>org.apache.camel</groupId>
+        <artifactId>camel-spring-boot-dependencies</artifactId>
+        <version>2.21.1</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+
+    <!-- Spring Boot -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-web</artifactId>
+      <exclusions>
+        <exclusion>
+          <groupId>org.springframework.boot</groupId>
+          <artifactId>spring-boot-starter-tomcat</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-undertow</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-actuator</artifactId>
+    </dependency>
+
+    <!-- Camel -->
+    <dependency>
+      <groupId>org.apache.camel</groupId>
+      <artifactId>camel-spring-boot-starter</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.camel</groupId>
+      <artifactId>camel-stream-starter</artifactId>
+    </dependency>
+
+    <!-- Test -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.camel</groupId>
+      <artifactId>camel-test-spring</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+        <version>${spring.boot-version}</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>repackage</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

spring-boot-packaging/src/main/java/fr/itix/camel/spring_boot_packaging/MySpringBootApplication.java

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+package fr.itix.camel.spring_boot_packaging;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class MySpringBootApplication {
+
+    /**
+     * A main method to start this application.
+     */
+    public static void main(String[] args) {
+        SpringApplication.run(MySpringBootApplication.class, args);
+    }
+
+}

spring-boot-packaging/src/main/resources/application.properties

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+# to automatic shutdown the JVM after a period of time
+#camel.springboot.duration-max-seconds=60
+#camel.springboot.duration-max-messages=100
+
+# add for example: &repeatCount=5 to the timer endpoint to make Camel idle
+#camel.springboot.duration-max-idle-seconds=15
+
+# all access to actuator endpoints without security
+management.security.enabled = false
+# turn on actuator health check
+endpoints.health.enabled = true
+
+# allow to obtain basic information about camel routes (read only mode)
+endpoints.camelroutes.enabled = true
+endpoints.camelroutes.read-only = true
+
+# to configure logging levels
+#logging.level.org.springframework = INFO
+#logging.level.org.apache.camel.spring.boot = INFO
+#logging.level.org.apache.camel.impl = DEBUG
+#logging.level.sample.camel = DEBUG

spring-boot-packaging/src/main/resources/camel/hello-world.xml

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+<routes xmlns="http://camel.apache.org/schema/spring">
+  <route id="hello-world">
+    <from uri="timer:hello?period=1000"/>
+    <log message="Hello, world !" />
+  </route>
+</routes>