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Kura router starts its own OSGi-aware CamelContext. It means that for every class extending KuraRouter, there will be a dedicated CamelContext instance. Ideally we recommend to deploy one KuraRouter per OSGi bundle.

Camel properties

Deploying KuraRouter

Bundle containing your Kura router class should import the following bundles in the OSGi manifest:Spring Boot auto-configuration automatically connect Spring Boot external configuration (like properties placeholders, OS environment variables or system properties) with the Camel properties support. It basically means that any property defined in application.properties file:  

Code Block
xml
xml
route.from = jms:invoices
Import-Package: org.osgi.framework;version="1.3.0",
org.slf4j;version="1.6.4",
org.apache.camel,org.apache.camel.impl,org.apache.camel.core.osgi,org.apache.camel.builder,org.apache.camel.model,
org.apache.camel.kura

Keep in mind that you don't have to import every Camel component bundle you plan to use in your routes, as Camel components are resolved as the services on the runtime level.

Before you deploy your router bundle, be sure that you have deployed (and started) the following Camel core bundles (using Kura GoGo shell)...or set via system property...

Code Block
xml
xml
java -Droute.to=jms:processed.invoices -jar mySpringApp.jar

...can be used as placeholders in Camel route:

Code Block
languagejava
@Component
public class MyRouter extends RouteBuilder {

  @Override
  public void configure() throws Exception {
    from("{{route.from}}").to("{{route.to}}");
  }

}

 

Custom Camel context configuration

If you would like to perform some operations on CamelContext bean created by Camel auto-configuration, register CamelContextConfiguration instance in your Spring context:

Code Block
languagejava
@Configuration
public class MyAppConfig {

  ...

  @Bean
  CamelContextConfiguration contextConfiguration() {
    return new CamelContextConfiguration() {
      @Override
      void beforeApplicationStart(CamelContext context) {
        // your custom configuration goes here
      }
    };
  }

}

Method CamelContextConfiguration#beforeApplicationStart(CamelContext) will be called just before the Spring context is started, so the CamelContext instance passed to this callback is fully auto-configured. You can add many instances of CamelContextConfiguration into your Spring context - all of them will be executed.

Disabling JMX

To disable JMX of the auto-configured CamelContext use camel.springboot.jmxEnabled property (JMX is enabled by default). For example you could add the following property to your application.properties file:

install file:///home/user/.m2/repository/org/apache/camel/camel-core/2.15.0/camel-core-2.15.0.jar
start <camel-core-bundle-id>
install file:///home/user/.m2/repository/org/apache/camel/camel-core-osgi/2.15.0/camel-core-osgi-2.15.0.jar
start <camel-core-osgi-bundle-id>
install file:///home/user/.m2/repository/org/apache/camel/camel-kura/2.15.0/camel-kura-2.15.0.jar 
start <camel-kura-bundle-id>

...and all the components you plan to use in your routes:

Code Block
xml
xml
install file:///home/user/.m2/repository/org/apache/camel/camel-stream/2.15/camel-stream-2.15.jar
start <camel-kura-bundle-id>

Then finally deploy your router bundle:

Code Block
xml
xml
install file:///home/user/.m2/repository/com/example/myrouter/1.0/myrouter-1.0.jar
start <your-bundle-id>
Code Block
xmlxml
camel.springboot.jmxEnabled = false

Auto-configured consumer and producer templates

Camel auto-configuration provides a pre-configured ConsumerTemplate and ProducerTemplate instances. You can simply inject them into your Spring-managed beans:

...