Package com.facebook.presto.block

Examples of com.facebook.presto.block.BlockBuilder

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        extends AbstractTestAggregationFunction
{
    @Override
    public Block getSequenceBlock(int start, int length)
    {
        BlockBuilder blockBuilder = new BlockBuilder(SINGLE_DOUBLE);
        for (int i = start; i < start + length; i++) {
            blockBuilder.append((double) i);
        }
        return blockBuilder.build();
    }
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        Page[] maskedPages = new Page[pages.length];
        for (int i = 0; i < pages.length; i++) {
            Page page = pages[i];
            int positionCount = page.getPositionCount();
            int blockSize = SINGLE_BOOLEAN.getFixedSize() * positionCount;
            BlockBuilder blockBuilder = new BlockBuilder(SINGLE_BOOLEAN, blockSize, Slices.allocate(blockSize).getOutput());
            for (int j = 0; j < page.getPositionCount(); j++) {
                blockBuilder.append(maskValue);
            }
            Block[] sourceBlocks = page.getBlocks();
            Block[] outputBlocks = new Block[sourceBlocks.length + 1]; // +1 for the single boolean output channel

            System.arraycopy(sourceBlocks, 0, outputBlocks, 0, sourceBlocks.length);
            outputBlocks[sourceBlocks.length] = blockBuilder.build();

            maskedPages[i] = new Page(outputBlocks);
        }

        return maskedPages;
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        GroupedAccumulator partialAggregation = function.createGroupedAggregation(Optional.<Integer>absent(), args);
        for (Page page : pages) {
            partialAggregation.addInput(createGroupByIdBlock(0, page.getPositionCount()), page);
        }

        BlockBuilder partialOut = new BlockBuilder(partialAggregation.getIntermediateTupleInfo());
        partialAggregation.evaluateIntermediate(0, partialOut);
        UncompressedBlock partialBlock = partialOut.build();

        GroupedAccumulator finalAggregation = function.createGroupedIntermediateAggregation();
        finalAggregation.addIntermediate(createGroupByIdBlock(0, partialBlock.getPositionCount()), partialBlock);

        return getGroupValue(finalAggregation, 0);
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    {
        if (positions == 0) {
            return new GroupByIdBlock(groupId, new UncompressedBlock(0, TupleInfo.SINGLE_LONG, Slices.EMPTY_SLICE));
        }

        BlockBuilder blockBuilder = new BlockBuilder(TupleInfo.SINGLE_LONG);
        for (int i = 0; i < positions; i++) {
            blockBuilder.append(groupId);
        }
        return new GroupByIdBlock(groupId, blockBuilder.build());
    }
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        return newPages;
    }

    private static Object getGroupValue(GroupedAccumulator groupedAggregation, int groupId)
    {
        BlockBuilder out = new BlockBuilder(groupedAggregation.getFinalTupleInfo());
        groupedAggregation.evaluateFinal(groupId, out);
        return BlockAssertions.getOnlyValue(out.build());
    }
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                DUAL_METADATA_MANAGER,
                new Session("user", "test", Session.DEFAULT_CATALOG, Session.DEFAULT_SCHEMA, null, null)
        );

        // create output
        BlockBuilder builder = new BlockBuilder(new TupleInfo(outputType.getRawType()));

        // project
        projectionFunction.project(channels, builder);

        // extract single value
        Object actualValue = BlockAssertions.getOnlyValue(builder.build());
        assertEquals(actualValue, expectedValue);
    }
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        extends AbstractTestAggregationFunction
{
    @Override
    public Block getSequenceBlock(int start, int length)
    {
        BlockBuilder blockBuilder = new BlockBuilder(SINGLE_LONG);
        for (int i = start; i < start + length; i++) {
            blockBuilder.append(i);
        }
        return blockBuilder.build();
    }
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        extends AbstractTestAggregationFunction
{
    @Override
    public Block getSequenceBlock(int start, int length)
    {
        BlockBuilder blockBuilder = new BlockBuilder(SINGLE_LONG);
        for (int i = start; i < start + length; i++) {
            blockBuilder.append(i);
        }
        return blockBuilder.build();
    }
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        extends AbstractTestAggregationFunction
{
    @Override
    public Block getSequenceBlock(int start, int length)
    {
        BlockBuilder blockBuilder = new BlockBuilder(SINGLE_DOUBLE);
        for (int i = start; i < start + length; i++) {
            blockBuilder.append((double) i);
        }
        return blockBuilder.build();
    }
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            }

            @Override
            protected Block computeNext()
            {
                BlockBuilder builder = new BlockBuilder(new TupleInfo(fieldType));

                while (!builder.isFull() && cursor.advanceNextPosition()) {
                    switch (fieldType) {
                        case BOOLEAN:
                            builder.append(cursor.getBoolean(fieldIndex));
                            break;
                        case FIXED_INT_64:
                            builder.append(cursor.getLong(fieldIndex));
                            break;
                        case DOUBLE:
                            builder.append(cursor.getDouble(fieldIndex));
                            break;
                        case VARIABLE_BINARY:
                            builder.append(cursor.getString(fieldIndex));
                            break;
                    }

                    // Split table into multiple pieces. Starts at 1, so
                    // a split of 1 means all the data.
                    for (int i = 1; i < totalParts; i++) {
                        if (!cursor.advanceNextPosition()) {
                            break;
                        }
                    }
                }

                if (builder.isEmpty()) {
                    return endOfData();
                }

                return builder.build();
            }
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Related Classes of com.facebook.presto.block.BlockBuilder

  • com.facebook.presto.block.uncompressed.TestUncompressedBlockCursor
  • com.facebook.presto.block.uncompressed.TestUncompressedBlockCursorWithNulls
  • com.facebook.presto.block.uncompressed.UncompressedBlock
  • com.facebook.presto.metadata.NativeRecordSink
  • com.facebook.presto.operator.aggregation.AbstractTestAggregationFunction
  • com.facebook.presto.operator.aggregation.AbstractTestApproximateAggregationFunction
  • com.facebook.presto.operator.aggregation.AbstractTestApproximateCountDistinct
  • com.facebook.presto.operator.aggregation.AggregationTestUtils
  • com.facebook.presto.operator.aggregation.ApproximateCountAggregation$CountAccumulator
  • com.facebook.presto.operator.aggregation.ApproximatePercentileAggregation$ApproximatePercentileAccumulator
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