io.deephaven.engine.table.impl.sources.regioned.ColumnRegionReferencingImpl Maven / Gradle / Ivy

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

import io.deephaven.chunk.attributes.Any;
import io.deephaven.engine.table.ChunkSource;
import io.deephaven.engine.table.GetContextMaker;
import io.deephaven.engine.table.SharedContext;
import io.deephaven.chunk.WritableChunk;
import io.deephaven.engine.page.Page;
import io.deephaven.engine.rowset.RowSequence;
import org.jetbrains.annotations.NotNull;

import javax.annotation.OverridingMethodsMustInvokeSuper;

public class ColumnRegionReferencingImpl>
        implements ColumnRegionReferencing, Page.WithDefaults {

    private final REFERENCED_COLUMN_REGION referencedColumnRegion;

    public ColumnRegionReferencingImpl(@NotNull final REFERENCED_COLUMN_REGION referencedColumnRegion) {
        this.referencedColumnRegion = referencedColumnRegion;
    }

    @Override
    public void invalidate() {
        referencedColumnRegion.invalidate();
    }

    @NotNull
    @Override
    public REFERENCED_COLUMN_REGION getReferencedRegion() {
        return referencedColumnRegion;
    }

    @Override
    public long mask() {
        return getReferencedRegion().mask();
    }

    @Override
    public void fillChunkAppend(@NotNull ChunkSource.FillContext context,
            @NotNull WritableChunk destination, @NotNull RowSequence rowSequence) {
        FillContext.converter(context).convertRegion(destination,
                referencedColumnRegion.getChunk(FillContext.nativeGetContext(context), rowSequence), rowSequence);
    }

    @Override
    @OverridingMethodsMustInvokeSuper
    public void releaseCachedResources() {
        ColumnRegionReferencing.super.releaseCachedResources();
        referencedColumnRegion.releaseCachedResources();
    }

    static class FillContext implements ChunkSource.FillContext {
        private final ChunkSource.GetContext nativeGetContext;
        private final Converter converter;

        FillContext(GetContextMaker getContextMaker, Converter converter, int chunkCapacity,
                SharedContext sharedContext) {
            this.converter = converter;
            this.nativeGetContext = getContextMaker.makeGetContext(chunkCapacity, sharedContext);
        }

        static ChunkSource.GetContext nativeGetContext(ChunkSource.FillContext context) {
            return ((FillContext) context).nativeGetContext;
        }

        static  Converter converter(ChunkSource.FillContext context) {
            // noinspection unchecked
            return ((FillContext) context).converter;
        }

        @Override
        public void close() {
            nativeGetContext.close();
        }
    }
}