static void Main(string[] args)
{
Logger.Info("Starting Publish-Subscribe Broker test application...");
if (args.Length > 1)
{
if (args[0].ToLower() == "-subscriber")
{
// Start a subscriber client with a list of topic names as arguments
Logger.Info("-- Subscriber Client Instance --");
string[] subscriberArgs = new string[args.Length - 1];
for (int i = 0; i < args.Length - 1; i++)
{
subscriberArgs[i] = args[i + 1];
}
StartSubscriberClient("localhost", PORT, subscriberArgs);
}
else if (args[0].ToLower() == "-publisher")
{
// Start a publisher client with a topic name as an argument
Logger.Info("-- Publisher Client Instance --");
StartPublisherClient("localhost", PORT, args[1]);
}
}
else if (args.Length == 1)
{
// Show some help information
Logger.Error("Invalid arguments!" + Environment.NewLine + " Start without arguments to run the full test application with a broker server" +
Environment.NewLine + " Use \"-publisher <topic name>\" to create a publisher client for the specified topic" +
Environment.NewLine + " Use \"-subscriber <topic name> ... <topic name>\" to create a subscriber client and subscribe to the specified topics");
}
else
{
// No args: Start a broker server and some test clients
Logger.Info("-- Broker Server Instance --");
BrokerServer server = StartBrokerServer("127.0.0.1", PORT);
// Create separate app instances to allow separate console output windows
Logger.Info("Starting new application instances for clients...");
StartNewAppInstance("-publisher test-topic-1");
StartNewAppInstance("-publisher test-topic-2");
StartNewAppInstance("-publisher test-topic-3");
StartNewAppInstance("-subscriber test-topic-1 test-topic-2");
StartNewAppInstance("-subscriber test-topic-2 test-topic-3");
// Keep process alive while server is running
while (server.IsRunning())
{
Thread.Sleep(500);
}
Logger.Warn("Server has stopped");
}
// End-of-program wait (to preserve separate console windows until user is ready to close them)
Logger.Info("-- Instance Terminated --" + Environment.NewLine + "Press any key to exit...");
Console.ReadKey();
}
/// <summary>
/// Initialize a new broker server at the specified IP and port to test with
/// </summary>
/// <returns>The new BrokerServer instance</returns>
private static BrokerServer StartBrokerServer(string ipAddress, int port)
{
BrokerServer server = new BrokerServer(ipAddress, port);
try
{
// Start the broker server (it will listen for clients in a separate thread)
server.StartServer();
Logger.Info("Broker server started");
}
catch (Exception e)
{
Logger.Error("Broker server failed to start" + Environment.NewLine + e.Message);
}
return(server);
}
