Package io.airlift.slice

Examples of io.airlift.slice.DynamicSliceOutput.slice()

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                // write digest
                currentValue.getDigest().serialize(sliceOutput);
                // write percentile
                sliceOutput.appendDouble(currentValue.getPercentile());

                Slice slice = sliceOutput.slice();
                output.appendSlice(slice);
            }
        }

        @Override
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                // write digest
                digest.serialize(sliceOutput);
                // write percentile
                sliceOutput.appendDouble(percentile);

                Slice slice = sliceOutput.slice();
                out.appendSlice(slice);
            }

            return out.build();
        }
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        uncompressedBlock = block;
        uncompressedBlockEncoding = block.getEncoding();

        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(Ints.checkedCast(uncompressedBlock.getSizeInBytes() + ENCODING_BUFFER_OVERHEAD.toBytes()));
        uncompressedBlockEncoding.writeBlock(sliceOutput, uncompressedBlock);
        Slice uncompressedSlice = sliceOutput.slice();

        byte[] compressedBytes = new byte[Snappy.maxCompressedLength(uncompressedSlice.length())];
        int actualLength = Snappy.compress(uncompressedSlice.getBytes(), 0, uncompressedSlice.length(), compressedBytes, 0);
        compressedSlice = Slices.wrappedBuffer(Arrays.copyOf(compressedBytes, actualLength));
    }
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        RunLengthEncodedBlock expectedBlock = new RunLengthEncodedBlock(value, 11);

        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        RunLengthBlockEncoding blockEncoding = new RunLengthBlockEncoding(new VariableWidthBlockEncoding());
        blockEncoding.writeBlock(sliceOutput, expectedBlock);
        RunLengthEncodedBlock actualBlock = blockEncoding.readBlock(sliceOutput.slice().getInput());
        assertTrue(positionEqualsPosition(VARCHAR, actualBlock, 0, expectedBlock, 0));
        BlockAssertions.assertBlockEquals(VARCHAR, actualBlock, expectedBlock);
    }

    @Test
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        VARCHAR.writeString(expectedBlockBuilder, "charlie");
        Block expectedBlock = expectedBlockBuilder.build();

        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        BlockEncoding blockEncoding = new RunLengthEncoder(sliceOutput, VARCHAR).append(expectedBlock).finish();
        SliceInput sliceInput = sliceOutput.slice().getInput();

        Block block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        RunLengthEncodedBlock rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(positionEqualsPosition(VARCHAR, rleBlock, 0, expectedBlock, 0));
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    @Test
    public void testRoundTrip()
    {
        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        writeType(sliceOutput, BOOLEAN);
        Type actualType = readType(new TypeRegistry(), sliceOutput.slice().getInput());
        assertEquals(actualType, BOOLEAN);
    }
}
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        Block expectedBlock = expectedBlockBuilder.build();

        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        BlockEncoding blockEncoding = new VariableWidthBlockEncoding();
        blockEncoding.writeBlock(sliceOutput, expectedBlock);
        Block actualBlock = blockEncoding.readBlock(sliceOutput.slice().getInput());
        BlockAssertions.assertBlockEquals(VARCHAR, actualBlock, expectedBlock);
    }

    @Test
    public void testCreateBlockWriter()
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        VARCHAR.writeString(blockBuilder, "dave");
        Block block = blockBuilder.build();

        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        BlockEncoding blockEncoding = new UncompressedEncoder(VARCHAR, sliceOutput).append(block).append(block).finish();
        Block actualBlock = blockEncoding.readBlock(sliceOutput.slice().getInput());

        BlockBuilder expectedBlockBuilder = VARCHAR.createBlockBuilder(new BlockBuilderStatus());
        VARCHAR.writeString(expectedBlockBuilder, "alice");
        VARCHAR.writeString(expectedBlockBuilder, "bob");
        VARCHAR.writeString(expectedBlockBuilder, "charlie");
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        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        writePages(createTestingBlockEncodingManager(), sliceOutput, expectedPage, expectedPage, expectedPage);

        List<Type> types = ImmutableList.<Type>of(VARCHAR, VARCHAR, VARCHAR);
        Iterator<Page> pageIterator = readPages(createTestingBlockEncodingManager(), sliceOutput.slice().getInput());
        assertPageEquals(types, pageIterator.next(), expectedPage);
        assertPageEquals(types, pageIterator.next(), expectedPage);
        assertPageEquals(types, pageIterator.next(), expectedPage);
        assertFalse(pageIterator.hasNext());
    }
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    private static int serializedSize(List<? extends Type> types, Page expectedPage)
    {
        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        writePages(createTestingBlockEncodingManager(), sliceOutput, expectedPage);
        Slice slice = sliceOutput.slice();

        Iterator<Page> pageIterator = readPages(createTestingBlockEncodingManager(), slice.getInput());
        if (pageIterator.hasNext()) {
            assertPageEquals(types, pageIterator.next(), expectedPage);
        }
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