/// <summary>
/// Monitors the queue of pending commands and causes the next pending request
/// to be sent to Cornerstone.
/// </summary>
private void MonitorQueue()
{
while (true)
{
//Wait until we have a request in the queue
_requestEnqueued.WaitOne();
//Check to see if we are already processing another command. We do not
//want to process the next command until a response has been returned for
//command currently being processed.
if (_pendingCommand == null)
{
//Prepare to send this command. Grab it off of the queue.
SendDataEventArgs eventArgs;
if (_pendingCommands.TryDequeue(out eventArgs))
{
//Make sure the command has data to be sent.
var data = eventArgs.Data;
if (data != null)
{
//If the command does not already have an cookie, we will give
//it a GUID as its cookie.
if (String.IsNullOrEmpty(eventArgs.Cookie))
{
eventArgs.Cookie = Guid.NewGuid().ToString();
}
if (data.StartsWith("<"))
{
var document = XDocument.Parse(data);
//Add on the cookie ID and the current request culture to the data XML.
document.Root.SetAttributeValue("Cookie", eventArgs.Cookie);
document.Root.SetAttributeValue("Culture", RequestCulture);
data = document.ToString();
}
//Keep track of this command.
_pendingCommand = eventArgs;
//Fire the command off to Cornerstone.
SendData(EncodingToUse.GetBytes(data));
//Let the sender know that the data went out.
if (eventArgs.Sender != null)
{
eventArgs.Sender.TrafficOut(data);
}
}
}
}
if (_pendingCommands.Count > 0)
{
_requestEnqueued.Set();
}
}
}
