private Message BuildMsmqMessage(Int32 command, string descriptor, object message,
IMessageEndpoint responseEndpoint, TimeSpan?timeToLive)
{
if (responseEndpoint != null && !(responseEndpoint is MsmqMessageEndpoint))
{
throw new NotSupportedException("MSMQ endpoints can only talk to each other!");
}
MessageQueue responseQueue = null;
var msmqResponseEndpoint = responseEndpoint as MsmqMessageEndpoint;
if (msmqResponseEndpoint != null)
{
responseQueue = msmqResponseEndpoint.MessageQueue;
}
var msmqMessage = new Message
{
AppSpecific = (int)command,
Body = message,
Formatter = (IMessageFormatter)MessageFormatter.Clone(),
Label = descriptor,
Recoverable = true,
ResponseQueue = responseQueue,
};
if (timeToLive.HasValue)
{
msmqMessage.TimeToBeReceived = timeToLive.Value;
}
return(msmqMessage);
}
private void QueuePeekCompleted(object sender, PeekCompletedEventArgs e)
{
var messageQueue = (MessageQueue)sender;
messageQueue.EndPeek(e.AsyncResult);
Message message = null;
try
{
message = messageQueue.Receive();
if (message == null)
{
throw new InvalidOperationException("Null message");
}
message.Formatter = (IMessageFormatter)MessageFormatter.Clone();
Trace.WriteLine(string.Format("Received message {0}", message.Id));
var command = (Int32)message.AppSpecific;
var handlers = _messageHandlers
.Where(x => x.Key == command)
.Select(x => x.Value)
.Where(x => x != null)
.ToArray();
var handlerCount = handlers.Count();
Trace.WriteLine(string.Format("Executing {0} handlers", handlerCount));
if (!handlers.Any())
{
handlers = new Action <object>[] { msg => Trace.TraceWarning("Message {0} has no registered handlers", message.Id) }
}
;
foreach (var handler in handlers)
{
if (command == MessageCommand)
{
handler(message.Body);
}
else
{
handler(message);
}
}
}
catch (Exception ex)
{
LogError(message, ex);
}
messageQueue.Refresh();
messageQueue.BeginPeek();
}
