Output when SessionTimeoutWindow() ends

Hello,

I have been working with Trill for an Real-time application where we need to aggregate live streaming data and output when a SessionTimeoutWindow closes. Using the syntax:

var query = inputStream
            .SessionTimeoutWindow(TimeSpan.FromSeconds(30).Ticks)
            .GroupAggregate(
            x => x.DeviceGuid,
            x => x.Min(v => DateTime.Parse(v.ReceivedTime)),
            x => x.Max(v => DateTime.Parse(v.ReceivedTime)),
            (key, startTime, endTime) => new { key.Key, startTime, endTime }) 

and registering the input as:

var inputStream = this.queryContainer.RegisterInput(
                this.input,
                DisorderPolicy.Adjust(),
                FlushPolicy.FlushOnPunctuation,
                PeriodicPunctuationPolicy.Time((ulong)TimeSpan.FromSeconds(1).Ticks),
                OnCompletedPolicy.EndOfStream);

Trill is able to output whenever it receives a Punctuation and returns intermediary results whenever it receives a Punctuation. What we need instead is Trill to only return when the Session closes. I have tried various combinations to remove the dependency on Punctuations and instead register the input with other settings, but Trill doesn’t output anything in that case. Is there a way I can force Trill to output the result of the query only when the SessionTimeoutWindow closes and not the intermediate states when it receives the Punctuation? Thanks for the help.

[shreyasraghunath]

Hi @wassim-k , We couldn’t get any answer to this question. Trill is a very good product but unfortunately lacks community support. Hence, we decided to go with Kafka Streams itself.

[wassim-k]

That worked perfectly. Thank you @peterfreiling your help so far has been invaluable for our project.