Package com.facebook.presto.spi.block

Examples of com.facebook.presto.spi.block.BlockCursor

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        @Override
        public void addInput(Page page)
        {
            checkArgument(valueChannel != -1, "Raw input is not allowed for a final aggregation");

            BlockCursor values = page.getBlock(valueChannel).cursor();
            BlockCursor weights = page.getBlock(weightChannel).cursor();
            BlockCursor percentiles = page.getBlock(percentileChannel).cursor();
            BlockCursor masks = null;
            if (maskChannel.isPresent()) {
                masks = page.getBlock(maskChannel.get()).cursor();
            }
            BlockCursor sampleWeights = null;
            if (sampleWeightChannel.isPresent()) {
                sampleWeights = page.getBlock(sampleWeightChannel.get()).cursor();
            }

            for (int position = 0; position < page.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(weights.advanceNextPosition());
                checkState(percentiles.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());
                long sampleWeight = SimpleAggregationFunction.computeSampleWeight(masks, sampleWeights);

                if (!values.isNull() && !weights.isNull() && sampleWeight > 0) {
                    addValue(digest, values, sampleWeight * weights.getLong(), parameterType);

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        @Override
        public void addIntermediate(Block block)
        {
            checkArgument(valueChannel == -1, "Intermediate input is only allowed for a final aggregation");

            BlockCursor intermediates = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());
                if (!intermediates.isNull()) {
                    SliceInput input = intermediates.getSlice().getInput();
                    // read digest
                    digest.merge(QuantileDigest.deserialize(input));
                    // read percentile
                    percentile = input.readDouble();
                }
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        protected void processInput(GroupByIdBlock groupIdsBlock, Block valuesBlock, Optional<Block> maskBlock, Optional<Block> sampleWeightBlock)
        {
            notNull.ensureCapacity(groupIdsBlock.getGroupCount());
            sums.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor values = valuesBlock.cursor();
            BlockCursor masks = null;
            if (maskBlock.isPresent()) {
                masks = maskBlock.get().cursor();
            }
            BlockCursor sampleWeights = null;
            if (sampleWeightBlock.isPresent()) {
                sampleWeights = sampleWeightBlock.get().cursor();
            }

            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());

                long groupId = groupIdsBlock.getGroupId(position);

                long sampleWeight = computeSampleWeight(masks, sampleWeights);
                if (!values.isNull() && sampleWeight > 0) {
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        }

        @Override
        protected void processInput(Block block, Optional<Block> maskBlock, Optional<Block> sampleWeightBlock)
        {
            BlockCursor intermediates = block.cursor();
            BlockCursor masks = null;
            if (maskBlock.isPresent()) {
                masks = maskBlock.get().cursor();
            }
            BlockCursor sampleWeights = null;
            if (sampleWeightBlock.isPresent()) {
                sampleWeights = sampleWeightBlock.get().cursor();
            }

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());
                long sampleWeight = computeSampleWeight(masks, sampleWeights);
                if (!intermediates.isNull() && sampleWeight > 0) {
                    notNull = true;
                    sum += sampleWeight * intermediates.getDouble();
                }
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        @Override
        protected void processInput(GroupByIdBlock groupIdsBlock, Block valuesBlock, Optional<Block> maskBlock, Optional<Block> sampleWeightBlock)
        {
            counts.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor values = valuesBlock.cursor();
            BlockCursor masks = null;
            BlockCursor sampleWeights = null;
            if (maskBlock.isPresent()) {
                masks = maskBlock.get().cursor();
            }
            if (sampleWeightBlock.isPresent()) {
                sampleWeights = sampleWeightBlock.get().cursor();
            }

            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());
                long sampleWeight = computeSampleWeight(masks, sampleWeights);
                if (!values.isNull() && sampleWeight > 0) {
                    long groupId = groupIdsBlock.getGroupId(position);
                    counts.add(groupId, sampleWeight);
                }
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        @Override
        protected void processIntermediate(GroupByIdBlock groupIdsBlock, Block valuesBlock)
        {
            counts.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor values = valuesBlock.cursor();

            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());

                if (!values.isNull()) {
                    long groupId = groupIdsBlock.getGroupId(position);
                    counts.add(groupId, values.getLong());
                }
            }
            checkState(!values.advanceNextPosition());
        }
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        }

        @Override
        protected void processInput(Block block, Optional<Block> maskBlock, Optional<Block> sampleWeightBlock)
        {
            BlockCursor values = block.cursor();
            BlockCursor masks = null;
            BlockCursor sampleWeights = null;
            if (maskBlock.isPresent()) {
                masks = maskBlock.get().cursor();
            }
            if (sampleWeightBlock.isPresent()) {
                sampleWeights = sampleWeightBlock.get().cursor();
            }

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());
                long sampleWeight = computeSampleWeight(masks, sampleWeights);
                if (!values.isNull() && sampleWeight > 0) {
                    count += sampleWeight;
                }
            }
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        }

        @Override
        protected void processIntermediate(Block block)
        {
            BlockCursor intermediates = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());
                count += intermediates.getLong();
            }
        }
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        protected void processInput(GroupByIdBlock groupIdsBlock, Block valuesBlock, Optional<Block> maskBlock, Optional<Block> sampleWeightBlock)
        {
            notNull.ensureCapacity(groupIdsBlock.getGroupCount());
            maxValues.ensureCapacity(groupIdsBlock.getGroupCount(), Long.MIN_VALUE);

            BlockCursor values = valuesBlock.cursor();

            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());

                long groupId = groupIdsBlock.getGroupId(position);

                if (!values.isNull()) {
                    notNull.set(groupId, true);

                    long value = values.getLong();
                    value = Math.max(value, maxValues.get(groupId));
                    maxValues.set(groupId, value);
                }
            }
            checkState(!values.advanceNextPosition());
        }
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        }

        @Override
        protected void processInput(Block block, Optional<Block> maskBlock, Optional<Block> sampleWeightBlock)
        {
            BlockCursor values = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                if (!values.isNull()) {
                    notNull = true;
                    max = Math.max(max, values.getLong());
                }
            }
        }
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