Package io.airlift.slice

Examples of io.airlift.slice.BasicSliceInput

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        @Override
        public void addIntermediate(Block block)
        {
            BlockCursor cursor = block.cursor();
            checkArgument(cursor.advanceNextPosition());
            SliceInput sliceInput = new BasicSliceInput(cursor.getSlice());
            Page page = Iterators.getOnlyElement(PagesSerde.readPages(sliceInput));
            checkArgument(page.getChannelCount() == accumulators.size(), "number of blocks does not match accumulators");

            for (int i = 0; i < page.getChannelCount(); i++) {
                accumulators.get(i).addIntermediate(page.getBlock(i));
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        @Override
        public void addIntermediate(GroupByIdBlock groupIdsBlock, Block block)
        {
            BlockCursor cursor = block.cursor();
            checkArgument(cursor.advanceNextPosition());
            SliceInput sliceInput = new BasicSliceInput(cursor.getSlice());
            Page page = Iterators.getOnlyElement(PagesSerde.readPages(sliceInput));
            checkArgument(page.getChannelCount() == accumulators.size(), "number of blocks does not match accumulators");

            for (int i = 0; i < page.getChannelCount(); i++) {
                accumulators.get(i).addIntermediate(groupIdsBlock, page.getBlock(i));
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        @Override
        public void addIntermediate(Block block)
        {
            BlockCursor cursor = block.cursor();
            checkArgument(cursor.advanceNextPosition());
            SliceInput sliceInput = new BasicSliceInput(cursor.getSlice());
            Page page = Iterators.getOnlyElement(PagesSerde.readPages(blockEncodingSerde, sliceInput));
            checkArgument(page.getChannelCount() == accumulators.size(), "number of blocks does not match accumulators");

            for (int i = 0; i < page.getChannelCount(); i++) {
                accumulators.get(i).addIntermediate(page.getBlock(i));
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        @Override
        public void addIntermediate(GroupByIdBlock groupIdsBlock, Block block)
        {
            BlockCursor cursor = block.cursor();
            checkArgument(cursor.advanceNextPosition());
            SliceInput sliceInput = new BasicSliceInput(cursor.getSlice());
            Page page = Iterators.getOnlyElement(PagesSerde.readPages(blockEncodingSerde, sliceInput));
            checkArgument(page.getChannelCount() == accumulators.size(), "number of blocks does not match accumulators");

            for (int i = 0; i < page.getChannelCount(); i++) {
                accumulators.get(i).addIntermediate(groupIdsBlock, page.getBlock(i));
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        overflows = new short[0];
    }

    public SparseHll(Slice serialized)
    {
        BasicSliceInput input = serialized.getInput();

        checkArgument(input.readByte() == Format.SPARSE_V1.getTag(), "invalid format tag");

        indexBitLength = input.readByte();
        checkArgument(indexBitLength >= 1 && indexBitLength <= 13, "indexBitLength is out of range");

        numberOfHashes = input.readShort();
        numberOfOverflows = input.readShort();

        shortHashes = new short[numberOfHashes];
        for (int i = 0; i < numberOfHashes; i++) {
            shortHashes[i] = input.readShort();
        }

        overflows = new short[numberOfOverflows];
        for (int i = 0; i < numberOfOverflows; i++) {
            overflows[i] = input.readShort();
        }

        checkArgument(!input.isReadable(), "input is too big");
    }
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        deltas = new byte[numberOfBuckets * BITS_PER_BUCKET / Byte.SIZE];
    }

    public DenseHll(Slice serialized)
    {
        BasicSliceInput input = serialized.getInput();

        checkArgument(input.readByte() == Format.DENSE_V1.getTag(), "invalid format tag");

        indexBitLength = input.readByte();
        checkArgument(indexBitLength >= 1 && indexBitLength <= Short.SIZE, "indexBitLength is out of range");

        baseline = input.readByte();
        deltas = new byte[numberOfBuckets(indexBitLength) / 2];
        input.readBytes(deltas);
        overflowBucket = input.readShort();
        overflowValue = input.readByte();

        baselineCount = 0;
        for (int i = 0; i < numberOfBuckets(indexBitLength); i++) {
            if (getDelta(i) == 0) {
                baselineCount++;
            }
        }

        checkArgument(!input.isReadable(), "input is too big");
    }
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        @Override
        public void addIntermediate(Block block)
        {
            BlockCursor cursor = block.cursor();
            checkArgument(cursor.advanceNextPosition());
            SliceInput sliceInput = new BasicSliceInput(cursor.getSlice());
            Page page = Iterators.getOnlyElement(PagesSerde.readPages(sliceInput));
            checkArgument(page.getChannelCount() == accumulators.size(), "number of blocks does not match accumulators");

            for (int i = 0; i < page.getChannelCount(); i++) {
                accumulators.get(i).addIntermediate(page.getBlock(i));
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        @Override
        public void addIntermediate(GroupByIdBlock groupIdsBlock, Block block)
        {
            BlockCursor cursor = block.cursor();
            checkArgument(cursor.advanceNextPosition());
            SliceInput sliceInput = new BasicSliceInput(cursor.getSlice());
            Page page = Iterators.getOnlyElement(PagesSerde.readPages(sliceInput));
            checkArgument(page.getChannelCount() == accumulators.size(), "number of blocks does not match accumulators");

            for (int i = 0; i < page.getChannelCount(); i++) {
                accumulators.get(i).addIntermediate(groupIdsBlock, page.getBlock(i));
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Related Classes of io.airlift.slice.BasicSliceInput

  • com.facebook.presto.operator.aggregation.BootstrappedAggregation$BootstrappedAccumulator
  • com.facebook.presto.operator.aggregation.BootstrappedAggregation$BootstrappedGroupedAccumulator
  • io.airlift.stats.cardinality.DenseHll
  • io.airlift.stats.cardinality.SparseHll
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