public static void PrintMessage(PRSMessage msg)
{
Console.WriteLine("Message type:" + msg.msgType);
Console.WriteLine("Status:" + msg.status);
Console.WriteLine("Port" + msg.port);
Console.WriteLine("Service:" + msg.serviceName + "\n");
}
//Static Make Methods
public static PRSMessage MakeSTOP()
{
PRSMessage msg = new PRSMessage();
msg.msgType = MsgType.STOP;
return(msg);
}
public static void SendMessage(Socket sock, IPEndPoint endPt, PRSMessage msg)
{
Console.WriteLine("Sending message to server...");
byte[] buffer = msg.Serialize();
int result = sock.SendTo(buffer, endPt);
Console.WriteLine("Sent " + result.ToString() + " bytes: " + new string(ASCIIEncoding.UTF8.GetChars(buffer)));
}
public static PRSMessage MakeLOOKUP_PORT(string serviceName)//Sends a message of service name
{
PRSMessage msg = new PRSMessage();
msg.msgType = MsgType.LOOKUP_PORT;
msg.serviceName = serviceName;
return(msg);
}
public static PRSMessage MakePORT_DEAD(ushort port)
{
PRSMessage msg = new PRSMessage();
msg.msgType = MsgType.PORT_DEAD;
msg.port = port;
return(msg);
}
public static PRSMessage MakeRESPONSE(Status response, ushort port)//response to
{
PRSMessage msg = new PRSMessage();
msg.msgType = MsgType.RESPONSE;
msg.status = response;
return(msg);
}
public static PRSMessage MakeREQUEST_PORT(string serviceName)
{
PRSMessage msg = new PRSMessage();
msg.msgType = MsgType.REQUEST_PORT;
msg.serviceName = serviceName;
return(msg);
}
public static PRSMessage MakeKEEP_ALIVE(string serviceName, ushort port)
{
PRSMessage msg = new PRSMessage();
msg.msgType = MsgType.KEEP_ALIVE;
msg.serviceName = serviceName;
msg.port = port;
return(msg);
}
public static PRSMessage MakeCLOSE_PORT(string serviceName, ushort port)
{
PRSMessage msg = new PRSMessage();
msg.msgType = MsgType.CLOSE_PORT;
msg.serviceName = serviceName;
msg.port = port;
return(msg);
}
public static PRSMessage Deserialize(byte[] buffer)
{
PRSMessage MSG = new PRSMessage();
MSG.msgType = (PRSMessage.MsgType)buffer[0];
MSG.serviceName = new string(ASCIIEncoding.UTF8.GetChars(buffer, SERVICE_LOCATION, 49));
MSG.port = BitConverter.ToUInt16(buffer, PORT_LOCATION);
MSG.status = (PRSMessage.Status)buffer[STATUS_LOCATION];
MSG.port = (ushort)IPAddress.NetworkToHostOrder(MSG.port);
return(MSG);
//turn bytes into integral values
}
public static PRSMessage ReceiveMessage(Socket sock, ref IPEndPoint remoteIPEP)
{
Console.WriteLine("Waiting for message from client...");
byte[] buffer = new byte[PRSMessage.SIZE];
EndPoint remoteEP = new IPEndPoint(IPAddress.Any, 0);
int result = sock.ReceiveFrom(buffer, ref remoteEP);
remoteIPEP = (IPEndPoint)remoteEP;
//Console.WriteLine("Received " + result.ToString() + " bytes: " + new string(ASCIIEncoding.UTF8.GetChars(buffer)));
// deserialize and handle the message
PRSMessage msg = PRSMessage.Deserialize(buffer);
return(msg);
}
