presto-main/src/main/java/io/prestosql/operator/TableFinishOperator.java/TableFinishOperator/TableFinishOperator
class TableFinishOperator:    public TableFinishOperator(
            OperatorContext operatorContext,
            TableFinisher tableFinisher,
            Operator statisticsAggregationOperator,
            StatisticAggregationsDescriptor<Integer> descriptor,
            boolean statisticsCpuTimerEnabled)
    {
        this.operatorContext = requireNonNull(operatorContext, "operatorContext is null");
        this.tableFinisher = requireNonNull(tableFinisher, "tableCommitter is null");
        this.statisticsAggregationOperator = requireNonNull(statisticsAggregationOperator, "statisticsAggregationOperator is null");
        this.descriptor = requireNonNull(descriptor, "descriptor is null");
        this.statisticsCpuTimerEnabled = statisticsCpuTimerEnabled;

        operatorContext.setInfoSupplier(this::getInfo);
    }