public void ProcessDataBuffer(object sender, ElapsedEventArgs elapsedEventArg) // To Process the DataBuffer
{
try
{
if (!Global.Is_dataprocessing) // If No dataprocessing beore the
{
Global.Is_dataprocessing = true;
if (Data_Buffer != null) // If Data Buffer has some data elements
{
while (Data_Buffer.Count > 0)
{
DataClass data_item = Data_Buffer.Take(); // Takes the first data_item from the Data_Buffer Queue.
bool Is_IpExists = false; // Mark it as IP has not existed with data_item ip address
for (int i = 0; i <= Sockets_arr.Count - 1; i++)
{
if (Sockets_arr[i].IpAddr.Equals(data_item.Ip_addr))// If Ip_Exists In Connected IPs List
{
Is_IpExists = true;
break;
}
}
if (Is_IpExists) // I.e If Ip Exists So that Only you need to process otherwise discard it
{
if (data_item.data.Length <= Global.Max_bytes && data_item.data.Length >= Global.Min_bytes) // Valid databyte
{
short cal_checksum = Calculate_Checksum(data_item.data); // Pasing the Packet data to calculate checksum;
PacketClass Packet_obj = DecodeRecievedBytestoPacket_Object(data_item.data); // Decoding bytes Array into Packetclass
Packet_obj = Reverse_PacketBytes(Packet_obj); // Reversing the Packet_obj Except DataBytes.
bool Is_valid = IsValidPacket(Packet_obj.Checksum, Packet_obj.Password, Packet_obj.DeviceId, cal_checksum); // Verifies Checksum, DeviceID
if (Is_valid) // I.e Recieved Pakcet Is Valid
{
if (Packet_obj.packetHeader.SequenceEqual(Global.CommInit_pkt_header))
{
ProcessCommInitPacket(Packet_obj, data_item.Ip_addr); // Communication Initialization Packet
}
else if (Packet_obj.packetHeader.SequenceEqual(Global.CommInitResponse_pkt_header))
{
ProcessCommandResponsePacket(Packet_obj, data_item.Ip_addr); // Command Response Packet
}
else if (Packet_obj.packetHeader.SequenceEqual(Global.Event_pkt_header))
{
ProcessEventPacket(Packet_obj, data_item.Ip_addr); // Event Packet
}
else if (Packet_obj.packetHeader.SequenceEqual(Global.Event_pkt_header))
{
ProcessModuleAlivePacket(Packet_obj, data_item.Ip_addr); // Module Alive Packet
}
}
}
}
}
}
}// End of Isdataprocessing
}
catch (Exception ex)
{
DateTime now_time = DateTime.Now;
string time = Convert.ToString(now_time);
Global.AppendTexttoFile(Global.exception_filepath, "Exception Ocuured on PrcoessDataBuffer: " + ex.Message + time); // Logging the Execptions Ocuured
}
}
private void HandleComm(object client)
{
TcpClient Tcp_Client = (TcpClient)client;
using (NetworkStream stream = Tcp_Client.GetStream())
{
// get the ip address of the Client.
IPEndPoint Endpoint = Tcp_Client.Client.RemoteEndPoint as IPEndPoint;
IPAddress Ip_addr = Endpoint.Address;
// Read the data from stream & Insert it to Blocking Collection.
Byte[] bytes = new Byte[Global.Max_bytes_read];
int Read_len = 0;
/*Open the Stream to Continuosly read the bytes from Client */
while ((Read_len = stream.Read(bytes, 0, bytes.Length)) != 0)
{
// Translate data bytes to a ASCII string.
try
{
// create byte array based on the stream length.
byte[] msg = new byte[Read_len];
// Copy the bytes from bytes[] array up to i(220 Original data to msg byte[] array
Array.Copy(bytes, 0, msg, 0, Read_len);
// Create new dataobject,
bool IsValidClientIp = false;
for (int i = 0; i <= Sockets_arr.Count - 1; i++)
{
if (Sockets_arr[i].IpAddr.Equals(Ip_addr))
{
IsValidClientIp = true;
break;
}
}
if (IsValidClientIp)
{
DataClass data_item = new DataClass(Ip_addr, msg);
// Add the created dataobject to data_buffer(Blocking Collection)\
Data_Buffer.Add(data_item);
}
else
{
break; // To Break the While Loop
// Client_thread.Abort(); { termnating thread }
}
}
// stream.Write(msg,0, msg.Length);
catch (Exception ex)
{
if (ex != null)
{
DateTime now_time = DateTime.Now;
string time = Convert.ToString(now_time);
Global.AppendTexttoFile(Global.exception_filepath, "Exception Ocuured While Reading Stream Data from the Client : " + ex.Message + time); // Logging the Execptions Ocuured
}
}
}
}
}
