Ribbon

Since Camel 2.18

The ribbon component provides use of Netflix Ribbon for client side load balancing.

Maven users will need to add the following dependency to their pom.xml for this component:

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-ribbon</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>

This component helps applying load balancing feature at the client side when using ServiceCall EIP.

Configuration

Programmatic

RibbonConfiguration configuration = new RibbonConfiguration();
configuration.addProperties("ServerListRefreshInterval", "250");

RibbonLoadBalancer loadBalancer = new RibbonLoadBalancer(configuration);

from("direct:start")
    .serviceCall()
        .name("myService")
        .loadBalancer(loadBalancer)
        .consulServiceDiscovery()
        .end()
    .to("mock:result");

Spring Boot

application.properties

camel.cloud.ribbon.properties[ServerListRefreshInterval] = 250

routes

from("direct:start")
    .serviceCall()
        .name("myService")
        .ribbonLoadBalancer()
        .consulServiceDiscovery()
        .end()
    .to("mock:result");

XML

<route>
    <from uri="direct:start"/>
    <serviceCall name="myService">
        <!-- enable ribbon load balancer -->
        <ribbonLoadBalancer>
            <properties key="ServerListRefreshInterval" value="250"/>
        </ribbonLoadBalancer>
    </serviceCall>
</route>