/// <summary>
/// Override which adds the PDU to the string.
/// </summary>
/// <returns></returns>
public override string ToString()
{
StringBuilder sb = new StringBuilder();
sb.Append(base.ToString());
if (HasPDU && pdu_.IsValid)
{
sb.Append(" ");
sb.Append(pdu_.ToString());
}
return(sb.ToString());
}
/// <summary>
/// This method is called when data is received from our socket.
/// </summary>
/// <param name="sender">The socket which sent the data</param>
/// <param name="args">Socket data</param>
protected virtual void OnReceiveData(object sender, SocketEventArgs args)
{
SocketClient socket = (SocketClient)sender;
ReadEventArgs re = (ReadEventArgs)args;
int packetLength = SmppPdu.REQUIRED_SIZE;
if (re.Length >= packetLength)
{
// Get the first DWORD from the buffer; this is the total size of the packet.
packetLength = BitConverter.ToInt32(new byte[] { re.Buffer[3], re.Buffer[2], re.Buffer[1], re.Buffer[0] }, 0);
if (re.Length >= packetLength)
{
try
{
// Have the entire buffer; parse it out.
SmppPdu pdu = SmppPdu.Create(new SmppByteStream(re.Buffer));
SmppPduReceivedEventArgs ea = new SmppPduReceivedEventArgs(this, pdu);
FireEvent(EventType.PreProcessPdu, ea);
PduSyncronizer sync = null;
if (pdu is SmppResponse)
{
if ((sync = FindAndRemoveWaitingPdu(pdu.SequenceNumber)) != null)
{
((SmppResponse)pdu).OriginalRequest = (SmppRequest)sync.PduRequest;
}
else
{
throw new SmppException("Invalid pdu response received with no pending request: " + pdu.ToString());
}
}
if (!ea.Handled)
{
try
{
ProcessPdu(pdu);
}
catch (InvalidSmppStateException)
{
if (pdu.RequiresResponse)
{
SendPdu(new generic_nack(StatusCodes.ESME_RINVCMDID, pdu.SequenceNumber));
}
}
}
if (sync != null)
{
sync.PduResponse = pdu;
}
}
catch (PduException pduex)
{
SmppPdu pdu = (pduex.HasPDU) ? pduex.PDU : null;
if (pdu != null && pdu.RequiresResponse)
{
SendPdu(new generic_nack(StatusCodes.ESME_RINVCMDID, pdu.SequenceNumber));
}
FireEvent(EventType.Error, new SmppErrorEventArgs(this, pduex, pdu));
}
catch (Exception ex)
{
socket.Close(true);
FireEvent(EventType.SessionDisconnected, new SmppDisconnectEventArgs(this, ex));
}
// Reset the buffer
re.AppendToBuffer = false;
re.NextReadSize = SmppPdu.REQUIRED_SIZE;
return;
}
}
// Wait for more data to show up on the socket.
re.AppendToBuffer = true;
re.NextReadSize = packetLength - re.Length;
}