/// <summary>
/// Sends the sppecified message through the socket
/// Attaches the msgEndDelim to the end of the message to indicate the end of the string
/// </summary>
/// <param name="message">The message to be sent</param>
private void send(ServiceBusRequest message)
{
MemoryStream memStream = new MemoryStream();
BinaryFormatter binForm = new BinaryFormatter();
binForm.Serialize(memStream, message);
byte[] msg = memStream.ToArray();
int msgSize = msg.Length;
while (!connection.Connected)
{
connect();
}
//First write the total size of the message
byte[] msgSizeBytes = BitConverter.GetBytes(msgSize);
connectionStream.Write(msgSizeBytes);
connectionStream.Flush();
connectionStream.Write(msg);
connectionStream.Flush();
}
/// <summary>
/// Executes the request received from the server
/// </summary>
/// <param name="requestParameters">Information about the request</param>
/// <returns>A string representing the result of the request</returns>
private ServiceBusResponse executeRequest(ServiceBusRequest request)
{
System.Diagnostics.Debug.WriteLine("--------------------------------executeRequest---------------------");
switch (request.serviceRequested)
{
case (Service.Authentication):
return(authenticationRequest((AuthenticationServiceRequest)request));
case (Service.Echo):
return(echoRequest((EchoServiceRequest)request));
case (Service.CompanyDirectory):
return(companyRequest((CompanyDirectoryServiceRequest)request));
case (Service.CompanyReview):
return(ReviewRequest((CompanyReviewServiceRequest)request));
case (Service.Chat):
return(ChatService((ChatServiceRequest)request));
case (Service.Weather):
return(WeatherService((WeatherServiceRequest)request));
default:
return(new ServiceBusResponse(false, "Error: Invalid request. Did not specify a valid service type. Specified type was: " + request.serviceRequested.ToString()));
}
}
/// <summary>
/// Sends the sppecified message through the socket
/// Attaches the msgEndDelim to the end of the message to indicate the end of the string
/// </summary>
/// <param name="message">The message to be sent</param>
private void send(ServiceBusRequest message)
{
MemoryStream memStream = new MemoryStream();
BinaryFormatter binForm = new BinaryFormatter();
binForm.Serialize(memStream, message);
//memStream.Write(SharedData.msgEndDelim.)
byte[] msg = memStream.ToArray();
//byte[] msg = Encoding.UTF8.GetBytes(message + SharedData.msgEndDelim);
int msgSize = msg.Length;
while (!connection.Connected)
{
//TODO: Low Importance - Add a timeout to this
connect();
}
//First write the total size of the message
byte[] msgSizeBytes = BitConverter.GetBytes(msgSize);
connectionStream.Write(msgSizeBytes);
connectionStream.Flush();
connectionStream.Write(msg);
connectionStream.Flush();
}
/// <summary>
/// Executes the request received from the server
/// </summary>
/// <param name="requestParameters">Information about the request</param>
/// <returns>A string representing the result of the request</returns>
private ServiceBusResponse executeRequest(ServiceBusRequest request)
{
switch (request.serviceRequested)
{
case (Service.Authentication):
return(authenticationRequest((AuthenticationServiceRequest)request));
case (Service.Echo):
return(echoRequest((EchoServiceRequest)request));
case (Service.CompanyDirectory):
return(directoryRequest((CompanyDirectoryServiceRequest)request));
case (Service.CompanyReviews):
return(reviewRequest((CompanyReviewServiceRequest)request));
case (Service.Chat):
return(chatRequest((ChatServiceRequest)request));
case (Service.Weather):
return(weatherRequest((WeatherNeededRequest)request));
default:
return(new ServiceBusResponse(false, "Error: Invalid request. Did not specify a valid service type. Specified type was: " + request.serviceRequested.ToString()));
}
}
/// <summary>
/// Continuously reads data from the client until the end of file string of characters is found
/// The end of file string is defined in the Messages library shared by the web server and the bus.
/// </summary>
/// <returns>The string representation of bytes read from the client socket</returns>
private ServiceBusRequest readUntilEOF()
{
int sizeOfMsg = 0;
int bytesRead = 0;
byte[] msgSize = new byte[4];
while (bytesRead < msgSize.Length)
{
try
{
bytesRead += connectionStream.Read(msgSize, bytesRead, msgSize.Length - bytesRead);
}
catch (SocketException) // This is thrown when the timeout occurs. The timeout is set in the constructor
{
Thread.Yield(); // Yield this threads remaining timeslice to another process, this process does not appear to need it currently because the read timed out
}
catch (IOException)
{
terminateConnection();
return(null);
}
}
//First we will receive the size of the message
sizeOfMsg = BitConverter.ToInt32(msgSize, 0);
byte[] requestBytes = new byte[sizeOfMsg];
ServiceBusRequest request = null;
bytesRead = 0;
while (bytesRead < requestBytes.Length)
{
try
{
bytesRead += connectionStream.Read(requestBytes, bytesRead, requestBytes.Length - bytesRead);
}
catch (SocketException) // This is thrown when the timeout occurs. The timeout is set in the constructor
{
Thread.Yield(); // Yield this threads remaining timeslice to another process, this process does not appear to need it currently because the read timed out
}
catch (IOException)
{
terminateConnection();
return(null);
}
}
MemoryStream memStream = new MemoryStream(requestBytes);
BinaryFormatter binForm = new BinaryFormatter();
request = (ServiceBusRequest)binForm.Deserialize(memStream);
return(request);
}
private ServiceBusResponse weatherRequest(ServiceBusRequest request)
{
SendOptions sendOptions = new SendOptions();
sendOptions.SetDestination("Weather");
return(requestingEndpoint.Request <ServiceBusResponse>(request, sendOptions).
ConfigureAwait(false).GetAwaiter().GetResult());
}
/// <summary>
/// Executes the request received from the server
/// </summary>
/// <param name="requestParameters">Information about the request</param>
/// <returns>A string representing the result of the request</returns>
private ServiceBusResponse executeRequest(ServiceBusRequest request)
{
switch (request.serviceRequested)
{
case (Service.Authentication):
return(authenticationRequest((AuthenticationServiceRequest)request));
case (Service.Echo):
return(echoRequest((EchoServiceRequest)request));
default:
return(new ServiceBusResponse(false, "Error: Invalid request. Did not specify a valid service type. Specified type was: " + request.serviceRequested.ToString()));
}
}
/// <summary>
/// listens for message requests/commands for as long as the connection remains open.
/// </summary>
public void listenToClient()
{
while (connection.Connected == true)
{
//Read the call to the API
ServiceBusRequest request = readUntilEOF();
ServiceBusResponse responseMessage = executeRequest(request);
sendToClient(responseMessage);
if (authenticated == false)
{
terminateConnection();
}
}
Debug.consoleMsg("Client connection closing...");
return;
}
