protected void PropageteRequestToWorkers(RestRequest request, Queue queue, Worker worker, Worker coworker)
{
var requestForMaster = request.AddParameter("Cooperator", coworker.Address);
IRestResponse response;
if (WorkerQueries.IsWorkerAlive(DBConnection, worker.Id))
{
response = PropagateRequest(requestForMaster, worker);
if (response.ResponseStatus == ResponseStatus.TimedOut ||
response.ResponseStatus == ResponseStatus.Error)
{
response = PropagateRequest(request, coworker);
QueuesQueries.swapWorkers(DBConnection, queue);
}
}
else
{
response = PropagateRequest(request, coworker);
QueuesQueries.swapWorkers(DBConnection, queue);
}
if (response.StatusCode != HttpStatusCode.OK)
{
throw new BadRequestException();
}
}
public QueuesAndTopics Get(QueuesAndTopicsRequest request)
{
if (Encrypt.EncryptToken(request.Time, request.WorkerId, request.Address, request.Token))
{
var queues = QueuesQueries.GetWorkerQueues(DBConnection, request.WorkerId);
var topics = TopicsQueries.GetWorkerTopics(DBConnection, request.WorkerId);
return(new QueuesAndTopics
{
Queues = queues,
Topics = topics
});
}
throw new BadRequestException();
}
protected void processRequest(string queueName, RestRequest request)
{
if (!QueuesQueries.QueueExists(DBConnection, queueName))
{
throw new QueueNotExistsException();
}
else
{
var queue = QueuesQueries.getQueueByName(DBConnection, queueName);
var worker = WorkerQueries.GetWorkerById(DBConnection, queue.Worker);
var coworker = WorkerQueries.GetWorkerById(DBConnection, queue.Cooperator);
PropageteRequestToWorkers(request, queue, worker, coworker);
}
}
public Message Get(GetMessage request)
{
var requestToSend = new RestRequest($"queues/{request.QueueName}/messages", Method.GET);
if (!QueuesQueries.QueueExists(DBConnection, request.QueueName))
{
throw new QueueNotExistsException();
}
else
{
var queue = QueuesQueries.getQueueByName(DBConnection, request.QueueName);
var worker = WorkerQueries.GetWorkerById(DBConnection, queue.Worker);
var coworker = WorkerQueries.GetWorkerById(DBConnection, queue.Cooperator);
return(PropageteRequestToWorkers <Message>(requestToSend, queue, worker, coworker));
}
}
public void Delete(DeleteQueue request)
{
var requestToSend = new RestRequest($"queues/{request.QueueName}", Method.DELETE);
if (!QueuesQueries.QueueExists(DBConnection, request.QueueName))
{
throw new QueueNotExistsException();
}
else
{
var queue = QueuesQueries.getQueueByName(DBConnection, request.QueueName);
var worker = WorkerQueries.GetWorkerById(DBConnection, queue.Worker);
var coworker = WorkerQueries.GetWorkerById(DBConnection, queue.Cooperator);
QueuesQueries.DeleteQueue(DBConnection, request.QueueName);
PropageteRequestToWorkers(requestToSend, queue, worker, coworker);
}
}
public void Create(CreateQueue request)
{
var requestToSend = new RestRequest("queues", Method.POST);
requestToSend.AddParameter("Name", request.Name);
if (QueuesQueries.QueueExists(DBConnection, request.Name))
{
throw new QueueAlreadyExistsException();
}
else
{
Worker worker, coworker;
CalculateQueueWorkers(request.Name, out worker, out coworker);
var queue = QueuesQueries.CreateQueue(DBConnection, request.Name, worker.Id, coworker.Id);
PropageteRequestToWorkers(requestToSend, queue, worker, coworker);
}
}
public IList <String> Get()
{
return(QueuesQueries.getQueuesNames(DBConnection));
}
protected override void swapWorkers(ICollection collection)
{
QueuesQueries.swapWorkers(DBConnection, (Queue)collection);
}