Package com.facebook.presto.spi.block

Examples of com.facebook.presto.spi.block.BlockBuilder.build()

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    public void testBigintSerializedSize()
    {
        BlockBuilder builder = BIGINT.createBlockBuilder(new BlockBuilderStatus());

        // empty page
        Page page = new Page(builder.build());
        int pageSize = serializedSize(ImmutableList.of(BIGINT), page);
        assertEquals(pageSize, 35); // page overhead

        // page with one value
        BIGINT.writeLong(builder, 123);
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        int pageSize = serializedSize(ImmutableList.of(BIGINT), page);
        assertEquals(pageSize, 35); // page overhead

        // page with one value
        BIGINT.writeLong(builder, 123);
        page = new Page(builder.build());
        int firstValueSize = serializedSize(ImmutableList.of(BIGINT), page) - pageSize;
        assertEquals(firstValueSize, 9); // value size + value overhead

        // page with two values
        BIGINT.writeLong(builder, 456);
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        int firstValueSize = serializedSize(ImmutableList.of(BIGINT), page) - pageSize;
        assertEquals(firstValueSize, 9); // value size + value overhead

        // page with two values
        BIGINT.writeLong(builder, 456);
        page = new Page(builder.build());
        int secondValueSize = serializedSize(ImmutableList.of(BIGINT), page) - (pageSize + firstValueSize);
        assertEquals(secondValueSize, 8); // value size (value overhead is shared with previous value)
    }

    @Test
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    public void testVarcharSerializedSize()
    {
        BlockBuilder builder = VARCHAR.createBlockBuilder(new BlockBuilderStatus());

        // empty page
        Page page = new Page(builder.build());
        int pageSize = serializedSize(ImmutableList.of(VARCHAR), page);
        assertEquals(pageSize, 34); // page overhead

        // page with one value
        VARCHAR.writeString(builder, "alice");
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        int pageSize = serializedSize(ImmutableList.of(VARCHAR), page);
        assertEquals(pageSize, 34); // page overhead

        // page with one value
        VARCHAR.writeString(builder, "alice");
        page = new Page(builder.build());
        int firstValueSize = serializedSize(ImmutableList.of(VARCHAR), page) - pageSize;
        assertEquals(firstValueSize, 4 + 5 + 1); // length + "alice" + null

        // page with two values
        VARCHAR.writeString(builder, "bob");
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        int firstValueSize = serializedSize(ImmutableList.of(VARCHAR), page) - pageSize;
        assertEquals(firstValueSize, 4 + 5 + 1); // length + "alice" + null

        // page with two values
        VARCHAR.writeString(builder, "bob");
        page = new Page(builder.build());
        int secondValueSize = serializedSize(ImmutableList.of(VARCHAR), page) - (pageSize + firstValueSize);
        assertEquals(secondValueSize, 4  + 3); // length + "bob" (null shared with first entry)
    }

    private static int serializedSize(List<? extends Type> types, Page expectedPage)
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        BlockBuilder idBlockBuilder = BIGINT.createBlockBuilder(new BlockBuilderStatus());
        for (int position = 0; position < block.getPositionCount(); position++) {
            int key = dictionaryBuilder.putIfAbsent(position, block);
            idBlockBuilder.appendLong(key);
        }
        idWriter.append(idBlockBuilder.build());

        return this;
    }

    @Override
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        BlockBuilder blockBuilder = type.createBlockBuilder(new BlockBuilderStatus());
        for (int groupId = 0; groupId < dictionaryBuilder.getGroupCount(); groupId++) {
            dictionaryBuilder.appendValuesTo(groupId, blockBuilder);
        }
        return new DictionaryBlockEncoding(blockBuilder.build(), idWriter.finish());
    }
}
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                Slice slice = sliceOutput.slice();
                out.appendSlice(slice);
            }

            return out.build();
        }

        @Override
        public final Block evaluateFinal()
        {
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        @Override
        public final Block evaluateFinal()
        {
            BlockBuilder out = getFinalType().createBlockBuilder(new BlockBuilderStatus());
            evaluate(out, parameterType, digest, percentile);
            return out.build();
        }
    }

    private static Type getOutputType(Type parameterType)
    {
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