private static ControlQueue GetControlQueue(string queuename, string hostname, string username, string password)
{
try
{
QueueConnectionProvider queueConnectionProvider = new QueueConnectionProvider();
queueConnectionProvider.UserName = username;
queueConnectionProvider.PassWord = password;
queueConnectionProvider.HostName = hostname;
ControlQueue _controlQueue = new ControlQueue();
_controlQueue.ConnectionProvider = queueConnectionProvider;
_controlQueue.QueueName = queuename;
_controlQueue.CreateQueue();
return(_controlQueue);
}
catch (Exception e)
{
throw e.InnerException;
}
}
public T Read()
{
T item = null;
string data = null;
bool firstTimeout = true;
_maxNumberOfPolls = MaxNumberOfPolls;
while (_maxNumberOfPolls > 0)
{
// Read Message from the dataQueue
BasicGetResult result = _dataQueue.Channel.BasicGet(_dataQueue.QueueName, true);
if (result != null)
{
try
{
// Deserialize message to business object
item = SerializationUtils.DeserializeObject <T>(result.Body.ToArray());
break;
}
catch (Exception ex)
{
_logger.Debug("Json Serialize failed. Reason: " + ex.StackTrace);
throw;
}
}
else
{
// If there is no data to poll, wait for master step
_logger.Debug("Wait for {0} second for dataQueue, check for master part is completed or not", PollingTimeOut);
Thread.Sleep(TimeSpan.FromSeconds(PollingTimeOut));
_logger.Debug("Polling of number : {0}", _maxNumberOfPolls);
// For the first timeout , check master step is completed
if (!string.IsNullOrWhiteSpace(MasterName))
{
if (_masterqueue == null)
{
_masterqueue = new ControlQueue();
QueueConnectionProvider queueConnectionProvider = new QueueConnectionProvider();
queueConnectionProvider.UserName = _dataQueue.UserName;
queueConnectionProvider.PassWord = _dataQueue.PassWord;
queueConnectionProvider.HostName = _dataQueue.HostName;
_masterqueue.ConnectionProvider = queueConnectionProvider;
_masterqueue.QueueName = "master";
_masterqueue.CreateQueue();
}
string MasterCompletedMessage = "master" + dot + MasterName + dot + "COMPLETED";
if (firstTimeout)
{
_logger.Debug("First Timeout need to check the master process is completed. ");
firstTimeout = false;
if (_masterqueue.CheckMessageExistAndConsume(MasterCompletedMessage))
{
_logger.Debug("There is no more data to read for worker.");
break;
}
_logger.Debug("Need to wait for master to completed.");
}
}
_maxNumberOfPolls--;
}
}
return(item);
}