void watchQueueCallback(IAsyncResult ar)
{
// Retrieve the delegate.
watchQueueDelegate dlgt = (watchQueueDelegate)ar.AsyncState;
// Call EndInvoke to retrieve the results.
dlgt.EndInvoke(ar);
}
public void Start()
{
try
{
string queueSizeCheckMilliseconds = ConfigurationManager.AppSettings["QueueSizeCheckIntervalInMilliseconds"];
_keepTabsOnQueueSizeCounter =
new System.Timers.Timer((queueSizeCheckMilliseconds == null) ? _queueSizeCheckMilliseconds : Convert.ToInt32(queueSizeCheckMilliseconds));
_keepTabsOnQueueSizeCounter.Start();
//you’ll want to use a MessageReadPropertyFilter in order to basically filter out all the data to keep the foot print small.
_countFilter.AdministrationQueue = false;
_countFilter.ArrivedTime = false;
_countFilter.CorrelationId = false;
_countFilter.Priority = false;
_countFilter.ResponseQueue = false;
_countFilter.SentTime = false;
_countFilter.Body = false;
_countFilter.Label = false;
_countFilter.Id = false;
_keepTabsOnQueueSizeCounter.Elapsed += new System.Timers.ElapsedEventHandler(_keepTabsOnQueueSizeCounter_Elapsed);
string minThreads = ConfigurationManager.AppSettings["MinThreads"];
string maxThreads = ConfigurationManager.AppSettings["MaxThreads"];
//don't forget to start the threadpool...
_tp.MinThreads = minThreads == null ? _minThreads : Convert.ToInt32(minThreads);
_tp.MaxThreads = maxThreads == null ? _maxThreads : Convert.ToInt32(maxThreads);
_tp.Start();
string messageQueueSetting = ConfigurationManager.AppSettings["queueName"];
_queueName = messageQueueSetting == null ? null : messageQueueSetting;
if (_queueName == null)
{
throw new ApplicationException("No valid queueName setting in the Configuration File");
}
// Create a transaction queue using System.Messaging API
if (!MessageQueue.Exists(_queueName))
{
MessageQueue.Create(_queueName, true);
}
//Connect to the queue
MessageQueue Queue = new MessageQueue(_queueName);
System.Messaging.MessageQueue.EnableConnectionCache = false;
watchQueueDelegate dlgt = new watchQueueDelegate(watchQueue);
IAsyncResult ar = dlgt.BeginInvoke(_queueName, new AsyncCallback(watchQueueCallback), dlgt);
_log.Debug("AuditMSMQProcessingService is running");
}
catch (Exception ex)
{
_log.Fatal(ex);
}
}
