private void IdentifyMessageType(byte[] payload)
{
if (_identifiedMessageType)
{
return;
}
try
{
try
{
ChoScalarObject scalarObject = (ChoScalarObject)ChoObject.Deserialize(payload);
_messageType = ChoUDPMessageType.Binary;
}
catch
{
try
{
ChoScalarObject scalarObject = (ChoScalarObject)ChoObject.XmlDeserialize <ChoScalarObject>(_encoding.GetString(payload));
_messageType = ChoUDPMessageType.Xml;
}
catch
{
Trace.WriteLine("Failed to identity message type. Messages will be discarded.");
}
}
}
finally
{
_identifiedMessageType = true;
}
}
private void ReceiveCallback(IAsyncResult ar)
{
try
{
Byte[] payload = _serverSocket.EndReceive(ar, ref _localEP);
IdentifyMessageType(payload);
if (_messageType == null || _messageType.Value == ChoNetMessageType.Raw)
{
EventHandler <ChoNetMessageEventArgs> rawMessageReceived = RawMessageReceived;
if (rawMessageReceived != null)
{
rawMessageReceived(this, new ChoNetMessageEventArgs(null, payload));
}
}
else if (_messageType.Value == ChoNetMessageType.Xml)
{
try
{
ChoNetMessage msg = (ChoNetMessage)_encoding.GetString(payload).ToObjectFromXml(); // ChoObject.XmlDeserialize<ChoNetMessage>(_encoding.GetString(payload));
if (!PreProcessMessage(msg))
{
EventHandler <ChoNetMessageEventArgs> messageReceived = MessageReceived;
if (messageReceived != null)
{
messageReceived(this, new ChoNetMessageEventArgs(msg, null));
}
}
}
catch (Exception ex)
{
ChoTrace.Error(ex.ToString());
}
}
else if (_messageType.Value == ChoNetMessageType.Binary)
{
try
{
ChoNetMessage msg = (ChoNetMessage)ChoObject.Deserialize(payload);
if (!PreProcessMessage(msg))
{
EventHandler <ChoNetMessageEventArgs> messageReceived = MessageReceived;
if (messageReceived != null)
{
messageReceived(this, new ChoNetMessageEventArgs(msg, null));
}
}
}
catch (Exception ex)
{
ChoTrace.Error(ex.ToString());
}
}
}
finally
{
_recieveResult = _serverSocket.BeginReceive(ReceiveCallback, null);
}
}
private void ReceiveCallback(IAsyncResult ar)
{
IPEndPoint ep = null;
var args = (object[])ar.AsyncState;
var session = (UdpClient)args[0];
var local = (IPEndPoint)args[1];
try
{
Byte[] payload = session.EndReceive(ar, ref ep);
EventHandler <ChoUDPMessageEventArgs> rawMessageReceived = RawMessageReceived;
EventHandler <ChoUDPMessageEventArgs> messageReceived = MessageReceived;
if (rawMessageReceived != null)
{
rawMessageReceived(this, new ChoUDPMessageEventArgs(null, payload));
}
else if (messageReceived != null)
{
IdentifyMessageType(payload);
if (_messageType == null)
{
if (rawMessageReceived != null)
{
rawMessageReceived(this, new ChoUDPMessageEventArgs(null, payload));
}
}
else if (_messageType.Value == ChoUDPMessageType.Xml)
{
try
{
ChoScalarObject scalarObject = (ChoScalarObject)ChoObject.XmlDeserialize <ChoScalarObject>(_encoding.GetString(payload));
MessageReceived(this, new ChoUDPMessageEventArgs(scalarObject, null));
}
catch (Exception ex)
{
ChoTrace.Error(ex.ToString());
}
}
else
{
try
{
ChoScalarObject scalarObject = (ChoScalarObject)ChoObject.Deserialize(payload);
MessageReceived(this, new ChoUDPMessageEventArgs(scalarObject, null));
}
catch (Exception ex)
{
ChoTrace.Error(ex.ToString());
}
}
}
}
finally
{
_recieveResult = session.BeginReceive(ReceiveCallback, args);
}
}
public object Deserialize(byte[] payload)
{
if (payload == null)
{
return(null);
}
else
{
return(ChoObject.Deserialize(payload));
}
}
private void ReceiveCallback(IAsyncResult ar)
{
try
{
Byte[] payload = _listener.EndReceive(ar, ref _groupEP);
EventHandler <ChoUDPMessageEventArgs> rawMessageReceived = RawMessageReceived;
EventHandler <ChoUDPMessageEventArgs> messageReceived = MessageReceived;
if (rawMessageReceived != null)
{
rawMessageReceived(this, new ChoUDPMessageEventArgs(null, payload));
}
else if (messageReceived != null)
{
IdentifyMessageType(payload);
if (_messageType == null)
{
if (rawMessageReceived != null)
{
rawMessageReceived(this, new ChoUDPMessageEventArgs(null, payload));
}
}
else if (_messageType.Value == ChoUDPMessageType.Xml)
{
try
{
ChoScalarObject scalarObject = (ChoScalarObject)ChoObject.XmlDeserialize <ChoScalarObject>(_encoding.GetString(payload));
MessageReceived(this, new ChoUDPMessageEventArgs(scalarObject, null));
}
catch (Exception ex)
{
ChoTrace.Error(ex.ToString());
}
}
else
{
try
{
ChoScalarObject scalarObject = (ChoScalarObject)ChoObject.Deserialize(payload);
MessageReceived(this, new ChoUDPMessageEventArgs(scalarObject, null));
}
catch (Exception ex)
{
ChoTrace.Error(ex.ToString());
}
}
}
}
finally
{
_recieveResult = _listener.BeginReceive(ReceiveCallback, null);
}
}
internal virtual object GetElement(int index)
{
if (index < _internalQueue.Count)
{
return(_commonQueue[index]);
}
if (index - _internalQueue.Count < _persistanceQueue.Count)
{
return(ChoObject.Deserialize(Path.Combine(_storageDir, _commonQueue[index] as string)));
}
return(null);
}
public T GetData()
{
try
{
if (!_event.WaitOne(5000))
{
return(default(T));
}
using (MemoryMappedViewStream stream = mf.CreateViewStream(0, 0, MemoryMappedFileAccess.Read))
{
if (_msgFormatter == ChoMsgFormatter.Binary)
{
return(ChoObject.Deserialize <T>(stream));
}
else
{
return(ChoObject.XmlDeserialize <T>(stream));
}
}
}
catch (FileNotFoundException)
{
return(default(T));
}
catch (WaitHandleCannotBeOpenedException)
{
return(default(T));
}
catch (SerializationException)
{
return(default(T));
}
catch (AbandonedMutexException)
{
return(default(T));
}
}
public virtual object Dequeue()
{
if (_internalQueue.Count == 1)
{
if (_persistanceQueue.Count > 0)
{
int index = 0;
while (index < _capacity)
{
if (_persistanceQueue.Count == 0)
{
break;
}
string fileName = _persistanceQueue.Dequeue() as string;
_internalQueue.Enqueue(ChoObject.Deserialize(Path.Combine(_storageDir, fileName)));
File.Delete(Path.Combine(_storageDir, fileName));
index++;
}
}
}
_commonQueue.RemoveAt(0);
return(_internalQueue.Dequeue());
}
private void IdentifyMessageType(byte[] payload)
{
if (_identifiedMessageType)
{
return;
}
try
{
if (_messageType == null)
{
_messageType = ChoNetMessageType.Raw;
try
{
ChoNetMessage scalarObject = (ChoNetMessage)ChoObject.Deserialize(payload);
_messageType = ChoNetMessageType.Binary;
}
catch
{
try
{
ChoNetMessage scalarObject = (ChoNetMessage)(ChoNetMessage)_encoding.GetString(payload).ToObjectFromXml(); // ChoObject.XmlDeserialize<ChoNetMessage>(_encoding.GetString(payload));
_messageType = ChoNetMessageType.Xml;
}
catch
{
Trace.WriteLine("Failed to identity message type. Setting the message format as raw payload mode.");
}
}
}
}
finally
{
_identifiedMessageType = true;
}
}
