Examples with InternalWindowFunction org.apache.flink.streaming.runtime.operators.windowing.functions.InternalWindowFunction used on opensource projects

Example 1 with InternalWindowFunction

use of org.apache.flink.streaming.runtime.operators.windowing.functions.InternalWindowFunction in project flink by apache.

the class WindowedStream method createFastTimeOperatorIfValid.

private <R> SingleOutputStreamOperator<R> createFastTimeOperatorIfValid(InternalWindowFunction<Iterable<T>, R, K, W> function, TypeInformation<R> resultType, String functionName) {
    if (windowAssigner.getClass() == SlidingAlignedProcessingTimeWindows.class && trigger == null && evictor == null) {
        SlidingAlignedProcessingTimeWindows timeWindows = (SlidingAlignedProcessingTimeWindows) windowAssigner;
        final long windowLength = timeWindows.getSize();
        final long windowSlide = timeWindows.getSlide();
        String opName = "Fast " + timeWindows + " of " + functionName;
        @SuppressWarnings("unchecked") InternalWindowFunction<Iterable<T>, R, K, TimeWindow> timeWindowFunction = (InternalWindowFunction<Iterable<T>, R, K, TimeWindow>) function;
        OneInputStreamOperator<T, R> op = new AccumulatingProcessingTimeWindowOperator<>(timeWindowFunction, input.getKeySelector(), input.getKeyType().createSerializer(getExecutionEnvironment().getConfig()), input.getType().createSerializer(getExecutionEnvironment().getConfig()), windowLength, windowSlide);
        return input.transform(opName, resultType, op);
    } else if (windowAssigner.getClass() == TumblingAlignedProcessingTimeWindows.class && trigger == null && evictor == null) {
        TumblingAlignedProcessingTimeWindows timeWindows = (TumblingAlignedProcessingTimeWindows) windowAssigner;
        final long windowLength = timeWindows.getSize();
        final long windowSlide = timeWindows.getSize();
        String opName = "Fast " + timeWindows + " of " + functionName;
        @SuppressWarnings("unchecked") InternalWindowFunction<Iterable<T>, R, K, TimeWindow> timeWindowFunction = (InternalWindowFunction<Iterable<T>, R, K, TimeWindow>) function;
        OneInputStreamOperator<T, R> op = new AccumulatingProcessingTimeWindowOperator<>(timeWindowFunction, input.getKeySelector(), input.getKeyType().createSerializer(getExecutionEnvironment().getConfig()), input.getType().createSerializer(getExecutionEnvironment().getConfig()), windowLength, windowSlide);
        return input.transform(opName, resultType, op);
    }
    return null;
}