Hi， The magic is happened in the camel-context-loadbalancer.xml. The client is not tcp client, it is just a camel client which can send the request to direct:loadbalance endpoint. If you want to add third mina endpoint, you can modify the file of camel-context-loadbalancer.xml.
-- Willem Jiang Red Hat, Inc. Web: http://www.redhat.com Blog: http://willemjiang.blogspot.com (http://willemjiang.blogspot.com/) (English) http://jnn.iteye.com (http://jnn.javaeye.com/) (Chinese) Twitter: willemjiang Weibo: 姜宁willem On Monday, November 4, 2013 at 5:42 AM, pmp.martins wrote: > So, recently I started learning Camel. As part of the process I decided to go > through all the examples (listed HERE > <http://camel.apache.org/examples.html> and available when you DOWNLOAD > <http://camel.apache.org/download.html> the package with all the examples > and docs) and to see what I could learn. > > One of the examples, Load Balancing using Mina > <http://camel.apache.org/loadbalancing-mina-example.html> caught my > attention because it uses a Mina in different JVM's and it simulates a load > balancer with round robin. > > I have a few problems with this example. First it uses the Spring DSL, > instead of the Java DSL which my project uses and which I find a lot easier > to understand now (mainly also because I am used to it). So the first > question: is there a version of this example using only the Java DSL instead > of the Spring DSL for the routes and the beans? > > My second questions is code related. The description states, and I quote: > > <blockquote cite="http://camel.apache.org/loadbalancing-mina-example.html";> > Within this demo every ten seconds, a Report object is created from the > Camel load balancer server. > This object is sent by the Camel load balancer to a MINA server where the > object is then serialized. > One of the two MINA servers (localhost:9991 and localhost:9992) receives the > object and enriches > the message by setting the field reply of the Report object. The reply is > sent back by the MINA > server to the client, which then logs the reply on the console. > </blockquote> > > So, from what I read, I understand that the MINA server 1 (per example) > receives a report from the loadbalancer, changes it, and then it sends that > report back to some invisible client. Upon checking the code, I see no > client java class or XML and when I run, the server simply posts the results > on the command line. Where is the client ?? What is this client? > > In the MINA 1server code presented here: > > <code> > > <beans xmlns="http://www.springframework.org/schema/beans"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xmlns:camel="http://camel.apache.org/schema/spring"; > xsi:schemaLocation=" > http://www.springframework.org/schema/beans > http://www.springframework.org/schema/beans/spring-beans.xsd > http://camel.apache.org/schema/spring > http://camel.apache.org/schema/spring/camel-spring.xsd";> > > <bean id="service" class="org.apache.camel.example.service.Reporting"/> > > <camelContext xmlns="http://camel.apache.org/schema/spring";> > > <route id="mina1"> > <from uri="mina:tcp://localhost:9991"/> > <setHeader headerName="minaServer"> > <constant>localhost:9991</constant> > </setHeader> > <bean ref="service" method="updateReport"/> > </route> > > </camelContext> > > </beans> > > </code> > > I don't understand how the updateReport method magically prints the object > on my console. What if I wanted to send message to a third MINA server? How > would I do it? (I would have to add a new route, and send it to the URI of > the 3rd server correct?) > > I know most of these questions may sound dumb, but I would appreciate if > anyone could help me. A Java DSL version of this would really help me. > > > > > > -- > View this message in context: > http://camel.465427.n5.nabble.com/Load-balancing-using-Mina-example-with-Java-DSL-tp5742566.html > Sent from the Camel - Users mailing list archive at Nabble.com > (http://Nabble.com).
