<commit_before># Copyright 2017 CodiLime
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import inspect

import msgpack

from veles.common import base
from veles.compatibility import pep487


class MsgpackWrapper(pep487.NewObject):
    def __init__(self):
        self.packer = msgpack.Packer(
            use_bin_type=True, default=MsgpackWrapper.pack_obj)
        self.unpacker = msgpack.Unpacker(
            encoding='utf-8', ext_hook=MsgpackWrapper.load_obj)

    @classmethod
    def pack_obj(cls, obj):
        if isinstance(obj, (set, frozenset)):
            return list(obj)
        if obj.__class__ in cls.type_to_code:
            return msgpack.ExtType(
                cls.type_to_code[obj.__class__], obj.to_bytes())
        if callable(getattr(obj, "to_dict", None)):
            return obj.to_dict()
        raise TypeError('Object of unknown type {}'.format(obj))

    @classmethod
    def load_obj(cls, code, data):
        if code in cls.code_to_type:
            return cls.code_to_type[code](data)
        return msgpack.ExtType(code, data)

    type_to_code = {}
    code_to_type = {}

    @classmethod
    def register_ext_type(cls, type_class, type_code):
        if type_code < 0 or type_code > 127:
            raise ValueError('type_code must be between 0 and 127')
        if type_code in cls.code_to_type:
            raise ValueError('type_code already used')
        if not inspect.isclass(type_class):
            raise ValueError('type_class is not a class')
        if not callable(getattr(type_class, "to_bytes", None)):
            raise ValueError('type_class has to have to_bytes method')

        cls.code_to_type[type_code] = type_class
        cls.type_to_code[type_class] = type_code


MsgpackWrapper.register_ext_type(base.ObjectID, 0)<commit_msg>msgpack: Support serialization of BinData and big ints.<commit_after># Copyright 2017 CodiLime
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import msgpack

import six

from veles.common import base
from veles.data.bindata import BinData
from veles.compatibility import pep487
from veles.compatibility.int_bytes import int_to_bytes, int_from_bytes


EXT_NODE_ID = 0
EXT_BINDATA = 1
EXT_BIGINT = 2
EXT_NEGBIGINT = 3


class MsgpackWrapper(pep487.NewObject):
    def __init__(self):
        self.packer = msgpack.Packer(
            use_bin_type=True, default=MsgpackWrapper.pack_obj)
        self.unpacker = msgpack.Unpacker(
            encoding='utf-8', ext_hook=MsgpackWrapper.load_obj)

    @classmethod
    def pack_obj(cls, obj):
        if isinstance(obj, (set, frozenset)):
            return list(obj)
        if isinstance(obj, base.ObjectID):
            return msgpack.ExtType(EXT_NODE_ID, obj.bytes)
        if isinstance(obj, BinData):
            width = int_to_bytes(obj.width, 4, 'little')
            return msgpack.ExtType(EXT_BINDATA, width + obj.raw_data)
        if isinstance(obj, six.integer_types):
            sz = (obj.bit_length() + 7) // 8
            if obj < 0:
                raw = int_to_bytes(-obj, sz, 'little')
                return msgpack.ExtType(EXT_NEGBIGINT, raw)
            else:
                raw = int_to_bytes(obj, sz, 'little')
                return msgpack.ExtType(EXT_BIGINT, raw)
        if callable(getattr(obj, "to_dict", None)):
            return obj.to_dict()
        raise TypeError('Object of unknown type {}'.format(obj))

    @classmethod
    def load_obj(cls, code, data):
        if code == EXT_NODE_ID:
            return base.ObjectID(data)
        elif code == EXT_BINDATA:
            width = int_from_bytes(data[:4], 'little')
            return BinData.from_raw_data(width, data[4:])
        elif code == EXT_BIGINT:
            return int_from_bytes(data, 'little')
        elif code == EXT_NEGBIGINT:
            return -int_from_bytes(data, 'little')
        return msgpack.ExtType(code, data)
{'fraction_non_alphanumeric': 0.0888659793814433, 'fraction_numerical': 0.010103092783505154, 'mean_word_length': 2.89951768488746, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 4, 'https://': 0, 'lorem ipsum': 0, 'www.': 2, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '6421833', 'n_tokens_mistral': 1497, 'n_tokens_neox': 1446, 'n_words': 433}