Make TimeSeriesModel extend Serializable

[Tautvis]

I'm running Arima models on many time series by mapping TimeSeriesRDD to Arima models. However, ARIMAModel does not extend Serializable and thus can't be stored in RDD. I have to write a wrapper around Arima model like

class SerArimaModel(model: ARIMAModel) 
    extends ARIMAModel(model.p, model.d, model.q, model.coefficients, model.hasIntercept) 
    with Serializable

Wrapper is small but using it tedious. Could TimeSeriesModel be modified to extend Serializable?

[sryza]

Hi @Tautvis, I believe it already does - https://github.com/sryza/spark-timeseries/blob/master/src/main/scala/com/cloudera/sparkts/models/TimeSeriesModel.scala#L23. Are you using an older version?

[Tautvis]

You are right. However, it seems that it wasn't included in latest release (v0.4.1).
Here's the file on the 0.4.1 release TimeSeriesModel.
I'm not sure why this happened as the release was after the change. Do you have any plans releasing 0.4.2?

[sryza]

@Tautvis unfortunately that's not something I have bandwidth for in the near future