public DataStreamSource <TOut> AddSource <TOut>(ISourceFunction <TOut> function, string sourceName, TypeInformation <TOut> typeInfo = default)
{
var isParallel = function is IParallelSourceFunction <TOut>;
Clean(function);
var sourceOperator = new StreamSource <TOut, ISourceFunction <TOut> >(function);
return(new DataStreamSource <TOut>(this, typeInfo, sourceOperator, isParallel, sourceName));
}
public static void Run()
{
// create the environment to create streams and configure execution
var env = StreamExecutionEnvironment.GetExecutionEnvironment();
env.EnableCheckpointing(2000);
ISourceFunction <Event> source = default;
var events = env.AddSource(source);
var alerts = events
// partition on the address to make sure equal addresses end up in the same state machine flatMap function
.KeyBy(nameof(Event.SourceAddress))
// the function that evaluates the state machine over the sequence of events
.FlatMap(new StateMachineMapper());
alerts.Print();
env.Execute("State machine job");
}