}//MainWindow
/*
* METHOD : ThreadedListener
* DESCRIPTION : This method is used to update the display window in the chat client. The
* thread is distinct from the ThreadListener, and it only concerned with listening for incoming strings
* from the INfacing pipe
* PARAMETERS : void : Method takes no arguments
* RETURNS : void : Method has no return value
*/
public void ThreadedListener()
{
//Open the necessary connections for reading from the server
ClientStreamPipe pipeManager = new ClientStreamPipe();
FileIO fileManager = new FileIO();
string pipeName = fileManager.ReadXMLDocument("pipeName-incoming"); //string indicator of the element to search in the XML doc
NamedPipeClientStream incomingMessagePipe = pipeManager.OpenIncomingPipe(pipeName);
StreamReader inputStream = new StreamReader(incomingMessagePipe);
Utility messageFormatter = new Utility();
//Check to ensure the client hasn't signaled that they wish to shutdown the application
while ((User.ClientID != null) && (incomingMessagePipe.IsConnected))
{
//Read the incoming data from the stream, format the message, and add it to the output window
string formattedMessage = inputStream.ReadLine();
if ((formattedMessage != "") && (formattedMessage != null) && (formattedMessage != " "))
{
formattedMessage = messageFormatter.BuildDisplayString(formattedMessage);
this.Dispatcher.BeginInvoke(new Action(() =>
{
OutputTextBox.Text = OutputTextBox.Text + Environment.NewLine + formattedMessage;
}));
}
Thread.Sleep(100);
}
incomingMessagePipe.Close();
}
/*
* METHOD : ThreadedSender
* DESCRIPTION : This method is used to send the messaged to the server.
* It functions separately from the listener thread, and only focuses with taking the
* saved messages from the User class, and pushing through the out pipe
* PARAMETERS : void : Method takes no arguments
* RETURNS : void : Method has no return value
*/
public void ThreadedSender()
{
//Open the necessary connections for writing to the server
ClientStreamPipe pipeManager = new ClientStreamPipe();
FileIO fileManager = new FileIO();
string pipeName = fileManager.ReadXMLDocument("pipeName-outgoing"); //string indicator of the element to search in the XML doc
NamedPipeClientStream outgoingMessagePipe = pipeManager.OpenOutgoingPipe(pipeName);
StreamWriter outputStream = new StreamWriter(outgoingMessagePipe);
Utility messageFormatter = new Utility();
//Check to ensure the client hasn't signaled that they wish to shutdown the application
while ((User.ClientID != null) && (outgoingMessagePipe.IsConnected))
{
//Check the user has a message ready to send
if (User.Message != null)
{
//ASCII encode the string, and build the output message as: clientID, clientCommand, clientString/textbox input
string outboundMessage = messageFormatter.ASCIIEncodeMessage(User.Message);
outboundMessage = messageFormatter.BuildOutboundString(User.ClientID, User.Command, User.Message);
outputStream.WriteLine(outboundMessage);
try
{
outputStream.Flush();
}
catch (Exception errorMessage)
{
//Log the error before returning up the calling stack
string filepath = fileManager.ReadXMLDocument("logFilePath");
Logger.LogApplicationEvents(filepath, errorMessage.ToString());
}
//Reset the client's message components before the next cycle
User.Command = null;
User.Message = null;
}
Thread.Sleep(100);
}
outgoingMessagePipe.Close();
}
