static void Main(string[] args)
{
Console.WriteLine(":: Starting embedded StreamInsight server ::");
//create SI server
using (Server server = Server.Create("Default"))
{
//create SI application
Application app = server.CreateApplication("StreamInsightSignalR.Monitor");
//create input adapter configuration
WcfAdapterConfig inConfig = new WcfAdapterConfig()
{
Password = "",
RequireAccessToken = false,
Username = "",
ServiceAddress = "http://localhost/StreamInsight/Default/InputAdapter"
};
//create output adapter configuration
WcfAdapterConfig outConfig = new WcfAdapterConfig()
{
Password = "",
RequireAccessToken = false,
Username = "",
ServiceAddress = "http://localhost/StreamInsight.Monitor/NotificationService.svc"
};
//create event stream from the source adapter
CepStream <BizEvent> input = CepStream <BizEvent> .Create("BizEventStream", typeof(WcfInputAdapterFactory), inConfig, EventShape.Point);
//build initial LINQ query that is a simple passthrough
var eventQuery = from i in input
select i;
//create unbounded SI query that doesn't emit to specific adapter
var query0 = eventQuery.ToQuery(app, "BizQueryRaw", string.Empty, EventShape.Point, StreamEventOrder.FullyOrdered);
query0.Start();
//create another query that latches onto previous query
//filters out all individual web hits used in later agg query
var eventQuery1 = from i in query0.ToStream <BizEvent>()
where i.Category != "Web"
select i;
//another query that groups events by type; used here for web site hits
var eventQuery2 = from i in query0.ToStream <BizEvent>()
group i by i.Category into EventGroup
from win in EventGroup.TumblingWindow(TimeSpan.FromSeconds(10))
select new BizEvent
{
Category = EventGroup.Key,
EventMessage = win.Count().ToString() + " web visits in the past 10 seconds"
};
//new query that takes result of previous and just emits web groups
var eventQuery3 = from i in eventQuery2
where i.Category == "Web"
select i;
//create new SI queries bound to WCF output adapter
var query1 = eventQuery1.ToQuery(app, "BizQuery1", string.Empty, typeof(WcfOutputAdapterFactory), outConfig, EventShape.Point, StreamEventOrder.FullyOrdered);
var query2 = eventQuery3.ToQuery(app, "BizQuery2", string.Empty, typeof(WcfOutputAdapterFactory), outConfig, EventShape.Point, StreamEventOrder.FullyOrdered);
//start queries
query1.Start();
query2.Start();
Console.WriteLine("Query started. Press [Enter] to stop.");
Console.ReadLine();
//stop all queries
query1.Stop();
query2.Stop();
query0.Stop();
Console.Write("Query stopped.");
Console.ReadLine();
}
}
