added akka camel docs

akka-docs/scala/code/docs/camel/CustomRouteExample.scala

@@ -0,0 +1,51 @@
+package docs.camel
+
+
+object CustomRouteExample {
+  {
+    //#CustomRouteExample
+    import akka.actor.{Actor, ActorRef, Props, ActorSystem}
+    import akka.camel.{CamelMessage, Consumer, Producer, CamelExtension}
+    import org.apache.camel.builder.RouteBuilder
+    import org.apache.camel.{Exchange, Processor}
+
+    class Consumer3(transformer: ActorRef) extends Actor with Consumer {
+      def endpointUri = "jetty:http://0.0.0.0:8877/camel/welcome"
+
+      def receive = {
+        // Forward a string representation of the message body to transformer
+        case msg: CamelMessage => transformer.forward(msg.bodyAs[String])
+      }
+    }
+
+    class Transformer(producer: ActorRef) extends Actor {
+      def receive = {
+        // example: transform message body "foo" to "- foo -" and forward result to producer
+        case msg: CamelMessage => producer.forward(msg.mapBody((body: String) => "- %s -" format body))
+      }
+    }
+
+    class Producer1 extends Actor with Producer {
+      def endpointUri = "direct:welcome"
+    }
+
+    class CustomRouteBuilder extends RouteBuilder {
+      def configure {
+        from("direct:welcome").process(new Processor() {
+          def process(exchange: Exchange) {
+            // Create a 'welcome' message from the input message
+            exchange.getOut.setBody("Welcome %s" format exchange.getIn.getBody)
+          }
+        })
+      }
+    }
+    // the below lines can be added to a Boot class, so that you can run the example from a MicroKernel
+    val system = ActorSystem("some-system")
+    val producer = system.actorOf(Props[Producer1])
+    val mediator = system.actorOf(Props(new Transformer(producer)))
+    val consumer = system.actorOf(Props(new Consumer3(mediator)))
+    CamelExtension(system).context.addRoutes(new CustomRouteBuilder)
+    //#CustomRouteExample
+  }
+
+}