model.py 文件源码

python
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项目:jubakit 作者: jubatus 项目源码 文件源码
def _get_converted_model(self, service, user_version, user_data, config):
    user_raw = BytesIO()

    # Write user container header to user_raw.
    pk = msgpack.Packer()
    user_raw.write(pk.pack_array_header(2))
    user_raw.write(pk.pack(user_version))
    user_raw.write(pk.pack_array_header(len(user_data)))

    # Write user_data to user_raw.
    for d in user_data:
      user_raw.write(d.getvalue())

    # Create transformed model.
    m1 = self._m
    m2 = JubaModel()
    m2.header = copy.deepcopy(m1.header)
    m2.system = copy.deepcopy(m1.system)
    m2.system.type = service
    m2.system.config = json.dumps(config)
    m2._user_raw = user_raw.getvalue()
    m2.user = JubaModel.UserContainer.loads(m2._user_raw)

    # Recompute CRC32 checksum and field lengths.
    m2.fix_header()

    return m2
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