Package com.facebook.presto.block.uncompressed

Examples of com.facebook.presto.block.uncompressed.UncompressedBlock

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    }

    public static GroupByIdBlock createGroupByIdBlock(int groupId, int positions)
    {
        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);
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    {
        Block valuesBlock;
        Block percentilesBlock;

        if (values.length == 0) {
            valuesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
        }
        else {
            valuesBlock = createDoublesBlock(values);
            percentilesBlock = new RunLengthEncodedBlock(createTuple(percentile), values.length);
        }
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    {
        Block valuesBlock;
        Block percentilesBlock;

        if (values.length == 0) {
            valuesBlock = new UncompressedBlock(0, SINGLE_LONG, EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
        }
        else {
            valuesBlock = createLongsBlock(values);
            percentilesBlock = new RunLengthEncodedBlock(createTuple(percentile), values.length);
        }
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        Block valuesBlock;
        Block weightsBlock;
        Block percentilesBlock;

        if (values.length == 0) {
            valuesBlock = new UncompressedBlock(0, SINGLE_LONG, EMPTY_SLICE);
            weightsBlock = new UncompressedBlock(0, SINGLE_LONG, EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
        }
        else {
            valuesBlock = createLongsBlock(values);
            weightsBlock = createLongsBlock(weights);
            percentilesBlock = new RunLengthEncodedBlock(createTuple(percentile), values.length);
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        Block valuesBlock;
        Block weightsBlock;
        Block percentilesBlock;

        if (values.length == 0) {
            valuesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
            weightsBlock = new UncompressedBlock(0, SINGLE_LONG, EMPTY_SLICE);
            percentilesBlock = new UncompressedBlock(0, SINGLE_DOUBLE, EMPTY_SLICE);
        }
        else {
            valuesBlock = createDoublesBlock(values);
            weightsBlock = createLongsBlock(weights);
            percentilesBlock = new RunLengthEncodedBlock(createTuple(percentile), values.length);
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public class TestUncompressedBlockSerde
{
    @Test
    public void testRoundTrip()
    {
        UncompressedBlock expectedBlock = new BlockBuilder(SINGLE_VARBINARY)
                .append("alice")
                .append("bob")
                .append("charlie")
                .append("dave")
                .build();
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public class TestPagesSerde
{
    @Test
    public void testRoundTrip()
    {
        UncompressedBlock expectedBlock = new BlockBuilder(SINGLE_VARBINARY)
                .append("alice")
                .append("bob")
                .append("charlie")
                .append("dave")
                .build();
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        Encoder encoder = BlocksFileEncoding.SNAPPY.createBlocksWriter(compressedOutput);

        for (Tuple tuple : tuples) {
            tuple.writeTo(blockSlice);
        }
        Block expectedBlock = new UncompressedBlock(tuples.size(), TupleInfo.SINGLE_VARBINARY, blockSlice.slice());

        encoder.append(tuples);
        BlockEncoding snappyEncoding = encoder.finish();
        Block actualBlock = snappyEncoding.readBlock(compressedOutput.slice().getInput());
        BlockAssertions.assertBlockEquals(actualBlock, expectedBlock);
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            int x = r.nextInt(tuples.size());
            tuples.get(x).writeTo(blockSlice);
            encoder.append(ImmutableSet.of(tuples.get(x)));
        }

        Block expectedBlock = new UncompressedBlock(count, TupleInfo.SINGLE_VARBINARY, blockSlice.slice());

        BlockEncoding snappyEncoding = encoder.finish();
        assertTrue(compressedOutput.size() < blockSlice.size());

        Block actualBlock = snappyEncoding.readBlock(compressedOutput.slice().getInput());
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            if (groupId < 0) {
                groupId = addNewGroup(cursors);
            }
            blockBuilder.append(groupId);
        }
        UncompressedBlock block = blockBuilder.build();
        return new GroupByIdBlock(nextGroupId, block);
    }
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Related Classes of com.facebook.presto.block.uncompressed.UncompressedBlock

  • com.facebook.presto.block.BlockBuilder
  • com.facebook.presto.block.BlockIterables$ConcatBlockIterable
  • com.facebook.presto.block.snappy.SnappyBlock
  • com.facebook.presto.operator.aggregation.AbstractTestAggregationFunction
  • com.facebook.presto.operator.aggregation.AggregationTestUtils
  • com.facebook.presto.operator.aggregation.TestApproximatePercentileAggregation
  • com.facebook.presto.operator.GroupByHash
  • com.facebook.presto.operator.GroupByHash$ChannelBuilder
  • com.facebook.presto.operator.HashAggregationOperator$GroupByHashAggregationBuilder
  • com.facebook.presto.operator.HashJoinOperator
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