File: zlib.py

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import zlib

from ..exceptions import CompressorError
from .base import BaseCompressor


class ZlibCompressor(BaseCompressor):
    min_length = 15
    preset = 6

    def compress(self, value: bytes) -> bytes:
        if len(value) > self.min_length:
            return zlib.compress(value, self.preset)
        return value

    def decompress(self, value: bytes) -> bytes:
        try:
            return zlib.decompress(value)
        except zlib.error as e:
            raise CompressorError(e)