Camel route loop not working - json

Question

I am trying to insert json data in mySQL database using camel and hibernate.
Everything is working.
for (Module module : modules) {
from("timer://foo?delay=10000")
.loop(7)//not working
.to(module.getUrl() + "/api/json")
.convertBodyTo(String.class)
.process(new Processor() {
#Override
public void process(Exchange exchange) throws Exception {
int index = (Integer)exchange.getProperty("CamelLoopIndex"); // not working
ObjectMapper mapper = new ObjectMapper();
JsonNode root = mapper.readTree(exchange.getIn().getBody().toString());
String[] lijst = {"lastBuild", "lastCompletedBuild", "lastFailedBuild", "lastStableBuild", "lastSuccessfulBuild", "lastUnstableBuild", "lastUnsuccessfulBuild"};
JSONObject obj = new JSONObject();
JsonNode node = root.get(lijst[index]);
JsonNode build = node.get("number");
obj.put("description", lijst[index]);
obj.put("buildNumber", build);
exchange.getIn().setBody(obj.toString());
}
})
.unmarshal(moduleDetail)
.to("hibernate:be.kdg.teamf.model.ModuleDetail")
.end();
}
When I debug, my CamelLoopIndex remains 0 so it is not incremented every time it goes through the loop.
All help is welcome!

Answer 1

In your case the only first instruction is processed in scope of the loop: .to(module.getUrl() + "/api/json"). You can add more instructions into a loop using Spring DSL, but I don't know how to declare a loop scope using Java DSL explicitly. I hope experts will explain more about a loop scope in Java DSL.
As a workaround I suggest to move all iteration instructions to a separate direct: route.

Answer 2

I can't reproduce your problem. This works:
from("restlet:http://localhost:9010}/loop?restletMethod=get")
.loop(7)
.process(new Processor() {
#Override
public void process(Exchange exchange) throws Exception {
int index = (int) exchange.getProperty("CamelLoopIndex");
exchange.getIn().setBody("index=" + index);
}
})
.convertBodyTo(String.class)
.end();
Output:
index=6