Package com.facebook.presto.spi

Examples of com.facebook.presto.spi.PageBuilder

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        new Runner(options).run();
    }

    public static Page execute(Page inputPage, PageProcessor processor)
    {
        PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(DOUBLE));
        int count = processor.process(null, inputPage, 0, inputPage.getPositionCount(), pageBuilder);
        checkState(count == inputPage.getPositionCount());
        return pageBuilder.build();
    }
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        return pageBuilder.build();
    }

    public static Page createInputPage()
    {
        PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(DOUBLE, DOUBLE, VARCHAR, BIGINT));
        LineItemGenerator lineItemGenerator = new LineItemGenerator(1, 1, 1);
        Iterator<LineItem> iterator = lineItemGenerator.iterator();
        for (int i = 0; i < 10_000; i++) {
            LineItem lineItem = iterator.next();
            DOUBLE.writeDouble(pageBuilder.getBlockBuilder(EXTENDED_PRICE), lineItem.getExtendedPrice());
            DOUBLE.writeDouble(pageBuilder.getBlockBuilder(DISCOUNT), lineItem.getDiscount());
            VARCHAR.writeSlice(pageBuilder.getBlockBuilder(SHIP_DATE), Slices.utf8Slice(lineItem.getShipDate()));
            BIGINT.writeLong(pageBuilder.getBlockBuilder(QUANTITY), lineItem.getQuantity());
        }
        return pageBuilder.build();
    }
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        // verify channel count
        assertEquals(joinProbe.getChannelCount(), 1);

        Block probeBlock = page.getBlock(0);
        PageBuilder pageBuilder = new PageBuilder(types);
        for (int position = 0; position < page.getPositionCount(); position++) {
            assertTrue(joinProbe.advanceNextPosition());

            joinProbe.appendTo(pageBuilder);

            assertEquals(joinProbe.getCurrentJoinPosition(), lookupSource.getJoinPosition(position, probeBlock));
        }
        assertFalse(joinProbe.advanceNextPosition());
        assertPageEquals(types, pageBuilder.build(), page);
    }
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        // verify hashStrategy is consistent with equals and hash code from block
        for (int leftBlockIndex = 0; leftBlockIndex < channel.size(); leftBlockIndex++) {
            Block leftBlock = channel.get(leftBlockIndex);

            PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(VARCHAR));

            for (int leftBlockPosition = 0; leftBlockPosition < leftBlock.getPositionCount(); leftBlockPosition++) {
                // hash code of position must match block hash
                assertEquals(hashStrategy.hashPosition(leftBlockIndex, leftBlockPosition), hashPosition(VARCHAR, leftBlock, leftBlockPosition));

                // position must be equal to itself
                assertTrue(hashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, leftBlockIndex, leftBlockPosition));

                // check equality of every position against every other position in the block
                for (int rightBlockIndex = 0; rightBlockIndex < channel.size(); rightBlockIndex++) {
                    Block rightBlock = channel.get(rightBlockIndex);
                    for (int rightBlockPosition = 0; rightBlockPosition < rightBlock.getPositionCount(); rightBlockPosition++) {
                        assertEquals(
                                hashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, rightBlockIndex, rightBlockPosition),
                                positionEqualsPosition(VARCHAR, leftBlock, leftBlockPosition, rightBlock, rightBlockPosition));
                    }
                }

                // check equality of every position against every other position in the block cursor
                for (Block rightBlock : channel) {
                    for (int position = 0; position < rightBlock.getPositionCount(); position++) {
                        assertEquals(
                                hashStrategy.positionEqualsRow(leftBlockIndex, leftBlockPosition, position, rightBlock),
                                positionEqualsPosition(VARCHAR, leftBlock, leftBlockPosition, rightBlock, position));
                    }
                }

                // write position to output block
                hashStrategy.appendTo(leftBlockIndex, leftBlockPosition, pageBuilder, 0);
            }

            // verify output block matches
            assertBlockEquals(VARCHAR, pageBuilder.build().getBlock(0), leftBlock);
        }
    }
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        PagesHashStrategy expectedHashStrategy = new SimplePagesHashStrategy(types, channels, Ints.asList(1, 2, 3, 4));

        // verify hashStrategy is consistent with equals and hash code from block
        for (int leftBlockIndex = 0; leftBlockIndex < varcharChannel.size(); leftBlockIndex++) {
            PageBuilder pageBuilder = new PageBuilder(types);

            int leftPositionCount = varcharChannel.get(leftBlockIndex).getPositionCount();
            for (int leftBlockPosition = 0; leftBlockPosition < leftPositionCount; leftBlockPosition++) {
                // hash code of position must match block hash
                assertEquals(
                        hashStrategy.hashPosition(leftBlockIndex, leftBlockPosition),
                        expectedHashStrategy.hashPosition(leftBlockIndex, leftBlockPosition));

                // position must be equal to itself
                assertTrue(hashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, leftBlockIndex, leftBlockPosition));

                // check equality of every position against every other position in the block
                for (int rightBlockIndex = 0; rightBlockIndex < varcharChannel.size(); rightBlockIndex++) {
                    Block rightBlock = varcharChannel.get(rightBlockIndex);
                    for (int rightBlockPosition = 0; rightBlockPosition < rightBlock.getPositionCount(); rightBlockPosition++) {
                        assertEquals(
                                hashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, rightBlockIndex, rightBlockPosition),
                                expectedHashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, rightBlockIndex, rightBlockPosition));
                    }
                }

                // check equality of every position against every other position in the block cursor
                for (int rightBlockIndex = 0; rightBlockIndex < varcharChannel.size(); rightBlockIndex++) {
                    Block[] rightBlocks = new Block[4];
                    rightBlocks[0] = varcharChannel.get(rightBlockIndex);
                    rightBlocks[1] = longChannel.get(rightBlockIndex);
                    rightBlocks[2] = doubleChannel.get(rightBlockIndex);
                    rightBlocks[3] = booleanChannel.get(rightBlockIndex);

                    int rightPositionCount = varcharChannel.get(rightBlockIndex).getPositionCount();
                    for (int rightPosition = 0; rightPosition < rightPositionCount; rightPosition++) {
                        assertEquals(
                                hashStrategy.positionEqualsRow(leftBlockIndex, leftBlockPosition, rightPosition, rightBlocks),
                                expectedHashStrategy.positionEqualsRow(leftBlockIndex, leftBlockPosition, rightPosition, rightBlocks));
                    }
                }

                // write position to output block
                hashStrategy.appendTo(leftBlockIndex, leftBlockPosition, pageBuilder, 0);
            }

            // verify output block matches
            Page page = pageBuilder.build();
            assertPageEquals(types, page, new Page(
                    extraChannel.get(leftBlockIndex),
                    varcharChannel.get(leftBlockIndex),
                    longChannel.get(leftBlockIndex),
                    doubleChannel.get(leftBlockIndex),
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            sampleWeightField = columnTypes.size() - 1;
        }
        else {
            sampleWeightField = -1;
        }
        pageBuilder = new PageBuilder(toTypes(columnTypes));
    }
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        private boolean finishing;

        public TpchQuery1Operator(OperatorContext operatorContext)
        {
            this.operatorContext = checkNotNull(operatorContext, "operatorContext is null");
            this.pageBuilder = new PageBuilder(TYPES);
        }
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    public BlockEncoding finish()
    {
        checkState(!finished, "already finished");
        finished = true;

        PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(type));
        for (int groupId = 0; groupId < dictionaryBuilder.getGroupCount(); groupId++) {
            dictionaryBuilder.appendValuesTo(groupId, pageBuilder, 0);
        }
        return new DictionaryBlockEncoding(pageBuilder.build().getBlock(0), idWriter.finish());
    }
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    {
        if (pages.isEmpty()) {
            return pages;
        }

        PageBuilder pageBuilder = new PageBuilder(types);

        ImmutableList.Builder<Page> partitionedPages = ImmutableList.builder();
        for (Page page : pages) {
            for (int position = 0; position < page.getPositionCount(); position++) {
                // if hash is not in range skip
                int partitionHashBucket = getPartitionHashBucket(position, page);
                if (partitionHashBucket != partition) {
                    continue;
                }

                for (int channel = 0; channel < types.size(); channel++) {
                    Type type = types.get(channel);
                    type.appendTo(page.getBlock(channel), position, pageBuilder.getBlockBuilder(channel));
                }

                // if page is full, flush
                if (pageBuilder.isFull()) {
                    partitionedPages.add(pageBuilder.build());
                    pageBuilder.reset();
                }
            }
        }
        if (!pageBuilder.isEmpty()) {
            partitionedPages.add(pageBuilder.build());
        }

        return partitionedPages.build();
    }
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            this.types = ImmutableList.copyOf(checkNotNull(types, "types is null"));
            checkArgument(columnNames.size() == types.size(),
                    "Column name count does not match type count: columnNames=%s, types=%s", columnNames, types.size());

            pages = new ArrayList<>();
            pageBuilder = new PageBuilder(types);
        }
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Related Classes of com.facebook.presto.spi.PageBuilder

  • com.facebook.presto.benchmark.HandTpchQuery1$TpchQuery1Operator
  • com.facebook.presto.HashPagePartitionFunction
  • com.facebook.presto.metadata.InternalTable$Builder
  • com.facebook.presto.operator.DistinctLimitOperator
  • com.facebook.presto.operator.FilterAndProjectOperator
  • com.facebook.presto.operator.GroupByHash
  • com.facebook.presto.operator.HashAggregationOperator$GroupByHashAggregationBuilder
  • com.facebook.presto.operator.index.IndexSnapshotBuilder
  • com.facebook.presto.operator.LookupJoinOperator
  • com.facebook.presto.operator.OrderByOperator
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