1. Camel

Event bus module using Camel

1.1. Usage

1) Add the dependency:

Maven
Gradle
<dependency>
  <groupId>io.jooby</groupId>
  <artifactId>jooby-camel</artifactId>
  <version>3.2.3</version>
</dependency>

2) Install

Java
Kotlin
import io.jooby.camel.CamelModule;

{
  install(new CamelModule(new MyRoutes()));                       (1)

  get("/{msg}", ctx -> {
    ProducerTemplate producer = require(ProducerTemplate.class);  (2)

    producer.sendBody("direct:foo", ctx.path("msg").value());     (3)

    ...
  });
}

public class MyRoutes extends RouteBuilder {

  @Override public void configure() throws Exception {
    from("direct://foo")
        .log("${body}");
  }
}
1 Install Camel
2 Get ProducerTemplate
3 Send message to direct:foo

1.2. Configuration files

Camel module integrates with application.conf properties files:

application.conf
myprop = "my prop value"
Java
Kotlin
public class MyRoutes extends RouteBuilder {

  @Override public void configure() throws Exception {
    from("direct://foo")
        .log("{{myprop}}");
  }
}

1.3. Dependency Injection Support

Camel module integrates with GuiceModule or SpringModule. Here is an example with Guice:

Java
Kotlin
import io.jooby.guice.GuiceModule;
import io.jooby.camel.CamelModule;

{
  install(new CamelModule(MyRoutes.class));  (1)

  install(new GuiceModule());                (2)
}

public class MyRoutes extends RouteBuilder {

  @Override public void configure() throws Exception {
    from("direct://foo")
        .bean(FooService.class)              (3)
        .log("${body}");
  }
}
1 Install Camel. MyRoutes will be provisioning by Guice.
2 Install Guice
3 Also FooService will be provisioning by Guice
  Keep in mind Camel beans are singleton by default, regardless of what dependency injection
framework you choose.

1.4. Auto Configuration

Camel modules can be fully configured from application.conf file.

application.conf
camel.main.name = My Camel Context
camel.threadpool.poolSize = 10