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• AggregateColumnSource.java

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io.deephaven.engine.table.impl.sources.aggregate.AggregateColumnSource Maven / Gradle / Ivy

/**
 * Copyright (c) 2016-2022 Deephaven Data Labs and Patent Pending
 */
package io.deephaven.engine.table.impl.sources.aggregate;

import io.deephaven.vector.Vector;
import io.deephaven.engine.table.ColumnSource;
import io.deephaven.engine.table.impl.MutableColumnSourceGetDefaults;
import io.deephaven.engine.table.impl.sources.UngroupableColumnSource;
import io.deephaven.engine.table.impl.sources.UngroupedColumnSource;
import io.deephaven.util.SimpleTypeMap;
import io.deephaven.engine.rowset.RowSet;
import org.jetbrains.annotations.NotNull;

import java.util.function.BiFunction;

/**
 * {@link ColumnSource} and {@link UngroupableColumnSource} interface for aggregation result columns.
 */
public interface AggregateColumnSource, COMPONENT_TYPE>
        extends UngroupableColumnSource, MutableColumnSourceGetDefaults.ForObject {

    UngroupedColumnSource ungrouped();

    static , DATA_TYPE> AggregateColumnSource make(
            @NotNull final ColumnSource aggregatedSource,
            @NotNull final ColumnSource groupRowSetSource) {
        // noinspection unchecked
        return (AggregateColumnSource) FactoryHelper.TYPE_TO_CONSTRUCTOR
                .get(aggregatedSource.getType()).apply(aggregatedSource, groupRowSetSource);
    }

    /**
     * Returns a sliced aggregate ColumnSource from the provided sources.
     *
     * @param aggregatedSource the value column source for the aggregation
     * @param groupRowSetSource the column source that maps rows to group row sets
     * @param startPosSource the column source that maps rows to starting position offsets
     * @param endPosSource the column source that maps rows to ending position offsets (exclusive)
     */
    static , DATA_TYPE> AggregateColumnSource makeSliced(
            @NotNull final ColumnSource aggregatedSource,
            @NotNull final ColumnSource groupRowSetSource,
            @NotNull final ColumnSource startPosSource,
            @NotNull final ColumnSource endPosSource) {
        // noinspection unchecked
        return (AggregateColumnSource) FactoryHelper.TYPE_TO_SLICED_CONSTRUCTOR
                .get(aggregatedSource.getType())
                .apply(aggregatedSource, groupRowSetSource, startPosSource, endPosSource);
    }

    /**
     * Returns a sliced aggregate ColumnSource from the provided sources.
     *
     * @param aggregatedSource the value column source for the aggregation
     * @param groupRowSetSource the column source that maps rows to group row sets
     * @param startPosOffset the fixed starting position offset for every row
     * @param endPosOffset the fixed ending position offset for every row (exclusive)
     */
    static , DATA_TYPE> AggregateColumnSource makeSliced(
            @NotNull final ColumnSource aggregatedSource,
            @NotNull final ColumnSource groupRowSetSource,
            final long startPosOffset,
            final long endPosOffset) {
        // noinspection unchecked
        return (AggregateColumnSource) FactoryHelper.TYPE_TO_SLICED_CONSTRUCTOR_FIXED
                .get(aggregatedSource.getType())
                .apply(aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset);
    }

    /**
     * Returns a range aggregated ColumnSource from the provided sources.
     *
     * @param aggregatedSource The input value ColumnSource for the aggregation, in input row key space
     * @param groupRowSetSource ColumnSource of grouped input row sets, in output row key space
     * @param startPositionInclusiveSource ColumnSource of starting positions (inclusive), in output row key space
     * @param endPositionExclusiveSource ColumnSource of ending positions (exclusive), in output row key space
     */
    static , DATA_TYPE> AggregateColumnSource forRangeJoin(
            @NotNull final ColumnSource aggregatedSource,
            @NotNull final ColumnSource groupRowSetSource,
            @NotNull final ColumnSource startPositionInclusiveSource,
            @NotNull final ColumnSource endPositionExclusiveSource) {
        // noinspection unchecked
        return (AggregateColumnSource) FactoryHelper.TYPE_TO_RANGE_CONSTRUCTOR
                .get(aggregatedSource.getType())
                .apply(aggregatedSource, groupRowSetSource, startPositionInclusiveSource, endPositionExclusiveSource);
    }

    final class FactoryHelper {

        private FactoryHelper() {}

        @SuppressWarnings({"unchecked", "AutoUnboxing"})
        private static final SimpleTypeMap, ColumnSource, AggregateColumnSource>> TYPE_TO_CONSTRUCTOR =
                SimpleTypeMap.create(
                // @formatter:off
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> {
                    throw new UnsupportedOperationException("Cannot create a primitive boolean ColumnSource");
                },
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> new     CharAggregateColumnSource((ColumnSource) aggregatedSource, groupRowSetSource),
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> new     ByteAggregateColumnSource((ColumnSource     ) aggregatedSource, groupRowSetSource),
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> new    ShortAggregateColumnSource((ColumnSource    ) aggregatedSource, groupRowSetSource),
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> new      IntAggregateColumnSource((ColumnSource  ) aggregatedSource, groupRowSetSource),
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> new     LongAggregateColumnSource((ColumnSource     ) aggregatedSource, groupRowSetSource),
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> new    FloatAggregateColumnSource((ColumnSource    ) aggregatedSource, groupRowSetSource),
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> new   DoubleAggregateColumnSource((ColumnSource   ) aggregatedSource, groupRowSetSource),
                (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource) -> new ObjectAggregateColumnSource<>((ColumnSource        ) aggregatedSource, groupRowSetSource)
                // @formatter:on
                );

        @FunctionalInterface
        private interface SlicedConstructor {
            AggregateColumnSource apply(
                    @NotNull ColumnSource aggregatedSource,
                    @NotNull ColumnSource groupRowSetSource,
                    @NotNull ColumnSource startPosSource,
                    @NotNull ColumnSource endPosSource);
        }

        @SuppressWarnings({"unchecked", "AutoUnboxing"})
        private static final SimpleTypeMap TYPE_TO_SLICED_CONSTRUCTOR =
                SimpleTypeMap.create(
                // @formatter:off
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> {
                            throw new UnsupportedOperationException("Cannot create a primitive boolean ColumnSource");
                        },
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> new     SlicedCharAggregateColumnSource((ColumnSource) aggregatedSource, groupRowSetSource, startPosSource, endPosSource),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> new     SlicedByteAggregateColumnSource((ColumnSource     ) aggregatedSource, groupRowSetSource, startPosSource, endPosSource),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> new    SlicedShortAggregateColumnSource((ColumnSource    ) aggregatedSource, groupRowSetSource, startPosSource, endPosSource),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> new      SlicedIntAggregateColumnSource((ColumnSource  ) aggregatedSource, groupRowSetSource, startPosSource, endPosSource),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> new     SlicedLongAggregateColumnSource((ColumnSource     ) aggregatedSource, groupRowSetSource, startPosSource, endPosSource),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> new    SlicedFloatAggregateColumnSource((ColumnSource    ) aggregatedSource, groupRowSetSource, startPosSource, endPosSource),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> new   SlicedDoubleAggregateColumnSource((ColumnSource   ) aggregatedSource, groupRowSetSource, startPosSource, endPosSource),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final ColumnSource startPosSource, final ColumnSource endPosSource) -> new SlicedObjectAggregateColumnSource<>((ColumnSource        ) aggregatedSource, groupRowSetSource, startPosSource, endPosSource)
                        // @formatter:on
                );

        @FunctionalInterface
        private interface SlicedConstructorFixedOffset {
            AggregateColumnSource apply(
                    @NotNull ColumnSource aggregatedSource,
                    @NotNull ColumnSource groupRowSetSource,
                    long startPosOffset,
                    long endPosOffset);
        }

        @SuppressWarnings({"unchecked", "AutoUnboxing"})
        private static final SimpleTypeMap TYPE_TO_SLICED_CONSTRUCTOR_FIXED =
                SimpleTypeMap.create(
                // @formatter:off
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> {
                            throw new UnsupportedOperationException("Cannot create a primitive boolean ColumnSource");
                        },
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> new     SlicedCharAggregateColumnSource((ColumnSource) aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> new     SlicedByteAggregateColumnSource((ColumnSource     ) aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> new    SlicedShortAggregateColumnSource((ColumnSource    ) aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> new      SlicedIntAggregateColumnSource((ColumnSource  ) aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> new     SlicedLongAggregateColumnSource((ColumnSource     ) aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> new    SlicedFloatAggregateColumnSource((ColumnSource    ) aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> new   SlicedDoubleAggregateColumnSource((ColumnSource   ) aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset),
                        (final ColumnSource aggregatedSource, final ColumnSource groupRowSetSource, final long startPosOffset, final long endPosOffset) -> new SlicedObjectAggregateColumnSource<>((ColumnSource        ) aggregatedSource, groupRowSetSource, startPosOffset, endPosOffset)
                        // @formatter:on
                );

        @FunctionalInterface
        private interface RangeAggregatedColumnSourceConstructor {
            AggregateColumnSource apply(
                    @NotNull ColumnSource aggregatedSource,
                    @NotNull ColumnSource groupRowSetSource,
                    @NotNull ColumnSource startPositionInclusiveSource,
                    @NotNull ColumnSource endPositionExclusiveSource);
        }

        @SuppressWarnings({"unchecked", "AutoUnboxing"})
        private static final SimpleTypeMap TYPE_TO_RANGE_CONSTRUCTOR =
                SimpleTypeMap.create(
                // @formatter:off
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> {
                            throw new UnsupportedOperationException("Cannot create a primitive boolean ColumnSource");
                        },
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> new     RangeAggregateColumnSourceChar((ColumnSource) as, grss, spis, epes),
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> new     RangeAggregateColumnSourceByte((ColumnSource     ) as, grss, spis, epes),
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> new    RangeAggregateColumnSourceShort((ColumnSource    ) as, grss, spis, epes),
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> new      RangeAggregateColumnSourceInt((ColumnSource  ) as, grss, spis, epes),
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> new     RangeAggregateColumnSourceLong((ColumnSource     ) as, grss, spis, epes),
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> new    RangeAggregateColumnSourceFloat((ColumnSource    ) as, grss, spis, epes),
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> new   RangeAggregateColumnSourceDouble((ColumnSource   ) as, grss, spis, epes),
                        (final ColumnSource as, final ColumnSource grss, final ColumnSource spis, final ColumnSource epes) -> new RangeAggregateColumnSourceObject<>((ColumnSource        ) as, grss, spis, epes)
                        // @formatter:on
                );
    }
}