private string blockingRead(LoanBroker.model.LoanRequest loanRequest)
{
string returnString = "Could not send the message";
var factory = new ConnectionFactory()
{
HostName = Queues.RABBITMQ_HOSTNAME
};
using (var connection = factory.CreateConnection())
{
using (var channel = connection.CreateModel())
{
channel.QueueDeclare(queue: Queues.LOANBROKER_OUT,
durable: false,
exclusive: false,
autoDelete: false,
arguments: null);
channel.BasicQos(0, 1, false); // Get one at the time.
var consumer = new QueueingBasicConsumer(channel);
channel.BasicConsume(queue: Queues.LOANBROKER_OUT,
noAck: false,
consumer: consumer);
bool weDontHaveIt = true;
using (Timer _timeOutTimer = new Timer(TIMEOUT))
{
_timeOutTimer.Enabled = true;
_timeOutTimer.Elapsed += _timeOutTimer_Elapsed;
while (weDontHaveIt)
{
//Looks like the items stays in the queue
BasicDeliverEventArgs ea = (BasicDeliverEventArgs)consumer.Queue.Dequeue();
LoanBroker.model.LoanResponse loanResponse = JsonConvert.DeserializeObject<LoanBroker.model.LoanResponse>(Encoding.UTF8.GetString(ea.Body));
if (loanRequest.SSN == loanResponse.SSN)
{
weDontHaveIt = false;
returnString = JsonConvert.SerializeObject(loanResponse);
channel.BasicAck(ea.DeliveryTag, false);
}
else
{
// Return it to the queue
// what is the difference between true and false?
//channel.BasicReject(ea.DeliveryTag, false);
//channel.BasicReject(ea.DeliveryTag, true);
}
}
}
}
}
return returnString;
}
private string nonBlockingRead(LoanBroker.model.LoanRequest loanRequest)
{
string returnString = "Could not send the message";
EventingBasicConsumer consumer;
using (IModel channel = new ConnectionFactory() { HostName = Queues.RABBITMQ_HOSTNAME }.CreateConnection().CreateModel())
{
channel.QueueDeclare(queue: Queues.LOANBROKER_OUT,
durable: false,
exclusive: false,
autoDelete: false,
arguments: null);
consumer = new EventingBasicConsumer(channel);
bool weDontHaveIt = true;
consumer.Received += (model, ea) =>
{
LoanBroker.model.LoanResponse loanResponse = JsonConvert.DeserializeObject<LoanBroker.model.LoanResponse>(Encoding.UTF8.GetString(ea.Body));
if (loanResponse.SSN == loanRequest.SSN)
{
weDontHaveIt = false;
}
else
{
// Return it to the queue
channel.BasicReject(ea.DeliveryTag, true);
}
};
channel.BasicConsume(queue: Queues.LOANBROKER_OUT,
noAck: true,
consumer: consumer);
while (weDontHaveIt)
{
System.Threading.Thread.Sleep(5);
}
}
return returnString;
}
