static void Main(string[] args)
{
log4net.Config.XmlConfigurator.Configure();
var ctx = ContextRegistry.GetContext();
var clientConfig = (ClientConfig)ctx["ClientConfig"];
// Create a client.
var client = new CachingPublisher(clientConfig);
// Attempt to connect.
try
{
// Assume the Distributor is running on the local machine.
client.Connect();
}
catch (Exception ex)
{
Console.WriteLine("Failed to connect to distributor: {0}", ex.Message);
Environment.Exit(-1);
}
// Prepare the market data.
var marketData = new Dictionary<string, Dictionary<string, object>>()
{
{ "LSE.VOD", new Dictionary<string, object>()
{
{ "NAME", "Vodafone Group PLC" },
{ "BID", 140.60 },
{ "ASK", 140.65 }
}
},
{ "LSE.TSCO", new Dictionary<string, object>()
{
{ "NAME", "Tesco PLC" },
{ "BID", 423.15 },
{ "ASK", 423.25 }
}
},
{ "LSE.SBRY", new Dictionary<string, object>()
{
{ "NAME", "J Sainsbury PLC" },
{ "BID", 325.30 },
{ "ASK", 325.35 }
}
}
};
// Request a notification when the the following regex pattern is
// requested. This corresponds to the things we are publishing.
client.AddNotification(@"LSE\..*");
// Publish the data.
foreach (var item in marketData)
{
client.Publish(item.Key, item.Value);
// Remove the name from our dictionary, so we don't republish it.
item.Value.Remove("NAME");
}
// Use an event to end publishing.
var stopEvent = new ManualResetEvent(false);
// Handle unexpected disconnects.
client.OnClosed += isAbnormal =>
{
if (isAbnormal)
{
Console.WriteLine("Unexpected disconnect - Press ENTER to quit");
stopEvent.Set();
}
};
// Start publishing changes.
var task = new Task(() => PublishIntermitantly(client, marketData, stopEvent));
task.Start();
Console.WriteLine("Publishing Data. Press <ENTER> to quit.");
Console.ReadLine();
// Tell the publisher to stop.
Console.WriteLine("Stopping the publisher.");
stopEvent.Set();
// Wait a second for the publisher to stop.
Console.WriteLine("Waiting a second ...");
Thread.Sleep(1000);
// Tidy up.
Console.WriteLine("... exiting");
client.Close();
}
static void PublishIntermitantly(CachingPublisher client, IDictionary<string, Dictionary<string, object>> marketData, ManualResetEvent stopEvent)
{
Random rnd = new Random();
while (true)
{
foreach (var item in marketData)
{
// Wait a short time.
var timeout = 10 * rnd.Next(5, 100);
if (stopEvent.WaitOne(timeout))
return;
// Pevert the data a little.
var bid = (double)item.Value["BID"];
var ask = (double)item.Value["ASK"];
var spread = ask - bid;
item.Value["BID"] = Math.Round(bid + bid * rnd.NextDouble() * 5.0 / 100.0, 2);
item.Value["ASK"] = Math.Round(bid + spread, 2);
Console.WriteLine("{0}, BID={1}, ASK={2}", item.Key, item.Value["BID"], item.Value["ASK"]);
client.Publish(item.Key, item.Value);
}
}
}