/// <summary>
/// This method sends a PDU on the socket session
/// </summary>
/// <param name="pdu"></param>
/// <returns></returns>
internal bool SendPdu(SmppPdu pdu)
{
if (sock_.IsConnected)
{
try
{
FireEvent(EventType.PostProcessPdu, new SmppEventArgs(this, pdu));
}
catch
{
}
try
{
SmppByteStream bs = new SmppByteStream();
pdu.Serialize(new SmppWriter(bs, this.version_));
sock_.Send(bs.GetBuffer());
return(true);
}
catch (System.Net.Sockets.SocketException ex)
{
sock_.Close(true);
FireEvent(EventType.SessionDisconnected, new SmppDisconnectEventArgs(this, ex));
}
}
return(false);
}
/// <summary>
/// This method adds the PDU to the given byte stream.
/// </summary>
/// <param name="stm"></param>
public void Serialize(SmppWriter stm)
{
bool includeBody = (this.Status == StatusCodes.ESME_ROK);
int length = REQUIRED_SIZE;
byte version = stm.Version;
SmppByteStream body = null, optBody = null;
// Get the optional (Tlv) parameters
if (includeBody == true)
{
// Serialize the body into a stream.
body = new SmppByteStream();
new SmppWriter(body, version).Add(this);
length += (int)body.Length;
// If we are using at least V3.4 of the SMPP spec
// then include Tlvs, otherwise we do not.
if (version >= SmppVersion.SMPP_V34)
{
int size = optionalParameters_.Count;
if (size > 0)
{
optBody = new SmppByteStream();
SmppWriter writer = new SmppWriter(optBody, version);
for (int i = 0; i < size; i++)
{
TlvParameter tlv = (TlvParameter)optionalParameters_[i];
if (tlv != null && tlv.HasValue)
{
writer.Add(tlv);
}
}
// Add the length of all optional parameters
length += (int)optBody.Length;
}
}
}
// Now serialize the whole thing together.
stm.Add(length);
stm.Add(CommandId);
stm.Add(status_);
stm.Add(sequenceNumber_);
if (includeBody == true)
{
if (body != null && body.Length > 0)
{
stm.Add(body);
}
if (optBody != null && optBody.Length > 0)
{
stm.Add(optBody);
}
}
}
/// <summary>
/// This is used for diagnostics - it places the PDU into binary
/// byte array form.
/// </summary>
/// <returns>Byte array</returns>
public string ToString(string fmt)
{
if (fmt.ToLower() == "b")
{
SmppByteStream stm = new SmppByteStream();
SmppWriter writer = new SmppWriter(stm);
this.Serialize(writer);
return(stm.ToString());
}
else
{
return(this.ToString());
}
}
