Examples with SlicingWindowOperator org.apache.flink.table.runtime.operators.window.slicing.SlicingWindowOperator used on opensource projects

Example 1 with SlicingWindowOperator

use of org.apache.flink.table.runtime.operators.window.slicing.SlicingWindowOperator in project flink by apache.

the class SlicingWindowAggOperatorBuilder method build.

public SlicingWindowOperator<RowData, ?> build() {
    checkNotNull(assigner);
    checkNotNull(inputSerializer);
    checkNotNull(keySerializer);
    checkNotNull(accSerializer);
    checkNotNull(generatedAggregateFunction);
    boolean isGlobalAgg = localGeneratedAggregateFunction != null && globalGeneratedAggregateFunction != null;
    RecordsCombiner.Factory combinerFactory;
    if (isGlobalAgg) {
        combinerFactory = new GlobalAggCombiner.Factory(localGeneratedAggregateFunction, globalGeneratedAggregateFunction);
    } else {
        combinerFactory = new AggCombiner.Factory(generatedAggregateFunction);
    }
    final WindowBuffer.Factory bufferFactory = new RecordsWindowBuffer.Factory(keySerializer, inputSerializer, combinerFactory);
    final SlicingWindowProcessor<Long> windowProcessor;
    if (assigner instanceof SliceSharedAssigner) {
        windowProcessor = new SliceSharedWindowAggProcessor(generatedAggregateFunction, bufferFactory, (SliceSharedAssigner) assigner, accSerializer, indexOfCountStart, shiftTimeZone);
    } else if (assigner instanceof SliceUnsharedAssigner) {
        windowProcessor = new SliceUnsharedWindowAggProcessor(generatedAggregateFunction, bufferFactory, (SliceUnsharedAssigner) assigner, accSerializer, shiftTimeZone);
    } else {
        throw new IllegalArgumentException("assigner must be instance of SliceUnsharedAssigner or SliceSharedAssigner.");
    }
    return new SlicingWindowOperator<>(windowProcessor);
}