/*
* Update a specific LB
* only allows changing name or algorithm
*/
@PUT
@Path("/{id}")
@Consumes("application/json")
public void updateLb(@PathParam("id") String id, String content) {
logger.info("PUT loadbalancer : " + id);
LoadBalancerDataModel model = new LoadBalancerDataModel();
// attempt to read lb top be updated
Integer lbId = new Integer(id);
LoadBalancer lb = model.getLoadBalancer(lbId);
if (lb == null) {
throw new LBaaSException("could not find id : " + id, 404); // not found
}
String name, algorithm;
JSONObject jsonObject = null;
// decode JSON
try {
jsonObject = new JSONObject(content);
} catch (JSONException e) {
throw new LBaaSException("bad json request", 400); // bad request
}
// look for name
try {
name = (String) jsonObject.get("name");
lb.setName(name);
logger.info(" name = " + name);
} catch (JSONException e) {
name = null;
}
// look for algorithm
try {
algorithm = (String) jsonObject.get("algorithm");
lb.setName(name);
logger.info(" algorithm = " + algorithm);
} catch (JSONException e) {
algorithm = null;
}
// must have one of these fields
if ((name == null) && (algorithm == null)) {
throw new LBaaSException("name and algorithm missing", 400); // bad request
}
if (name != null) lb.setName(name);
if (algorithm != null) lb.setAlgorithm(algorithm);
// mark as change pending
lb.setStatus(LoadBalancer.STATUS_PENDING_UPDATE);
// write changes to DB
model.setLoadBalancer(lb);
// have the device process the job
try {
lbaasTaskManager.sendJob(lb.getDevice(), LbToJson(lb, ACTION_UPDATE));
} catch (JSONException jsone) {
throw new LBaaSException(
"internal server error JSON exception :" + jsone.toString(), 500); // internal error
}
}
