I need to know the way to implement custom metrics in my flink program.
Currently, I know we can create custom metrics with the help of RuntimeContext.
But in my aggregate() I do not have RuntimeContext. I am using window operator and applying aggregate() method on it. And I am passing AggregateFunction in aggregate() method.
So, Kindly guide me, how can I create custom metrics in my code?
Note: As we know we can not user RichAggregateFunction with aggregate() method
Thanks & Regards