| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You 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. |
| # |
| |
| """For internal use only; no backwards-compatibility guarantees.""" |
| |
| # pytype: skip-file |
| |
| from typing import Type |
| from typing import TypeVar |
| from typing import Union |
| from typing import overload |
| |
| from google.protobuf import any_pb2 |
| from google.protobuf import duration_pb2 |
| from google.protobuf import message |
| from google.protobuf import struct_pb2 |
| from google.protobuf import timestamp_pb2 |
| |
| MessageT = TypeVar('MessageT', bound=message.Message) |
| TimeMessageT = TypeVar( |
| 'TimeMessageT', duration_pb2.Duration, timestamp_pb2.Timestamp) |
| |
| message_types = (message.Message, ) |
| |
| |
| @overload |
| def pack_Any(msg): |
| # type: (message.Message) -> any_pb2.Any |
| pass |
| |
| |
| @overload |
| def pack_Any(msg): |
| # type: (None) -> None |
| pass |
| |
| |
| def pack_Any(msg): |
| """Creates a protobuf Any with msg as its content. |
| |
| Returns None if msg is None. |
| """ |
| if msg is None: |
| return None |
| |
| result = any_pb2.Any() |
| result.Pack(msg) |
| return result |
| |
| |
| @overload |
| def unpack_Any(any_msg, msg_class): |
| # type: (any_pb2.Any, Type[MessageT]) -> MessageT |
| pass |
| |
| |
| @overload |
| def unpack_Any(any_msg, msg_class): |
| # type: (any_pb2.Any, None) -> None |
| pass |
| |
| |
| def unpack_Any(any_msg, msg_class): |
| """Unpacks any_msg into msg_class. |
| |
| Returns None if msg_class is None. |
| """ |
| if msg_class is None: |
| return None |
| msg = msg_class() |
| any_msg.Unpack(msg) |
| return msg |
| |
| |
| @overload |
| def parse_Bytes(serialized_bytes, msg_class): |
| # type: (bytes, Type[MessageT]) -> MessageT |
| pass |
| |
| |
| @overload |
| def parse_Bytes(serialized_bytes, msg_class): |
| # type: (bytes, Union[Type[bytes], None]) -> bytes |
| pass |
| |
| |
| def parse_Bytes(serialized_bytes, msg_class): |
| """Parses the String of bytes into msg_class. |
| |
| Returns the input bytes if msg_class is None.""" |
| if msg_class is None or msg_class is bytes: |
| return serialized_bytes |
| msg = msg_class() |
| msg.ParseFromString(serialized_bytes) |
| return msg |
| |
| |
| def pack_Struct(**kwargs): |
| # type: (...) -> struct_pb2.Struct |
| |
| """Returns a struct containing the values indicated by kwargs. |
| """ |
| msg = struct_pb2.Struct() |
| for key, value in kwargs.items(): |
| msg[key] = value # pylint: disable=unsubscriptable-object, unsupported-assignment-operation |
| return msg |
| |
| |
| def from_micros(cls, micros): |
| # type: (Type[TimeMessageT], int) -> TimeMessageT |
| result = cls() |
| result.FromMicroseconds(micros) |
| return result |
| |
| |
| def to_Timestamp(time): |
| # type: (Union[int, float]) -> timestamp_pb2.Timestamp |
| |
| """Convert a float returned by time.time() to a Timestamp. |
| """ |
| seconds = int(time) |
| nanos = int((time - seconds) * 10**9) |
| return timestamp_pb2.Timestamp(seconds=seconds, nanos=nanos) |
| |
| |
| def from_Timestamp(timestamp): |
| # type: (timestamp_pb2.Timestamp) -> float |
| |
| """Convert a Timestamp to a float expressed as seconds since the epoch. |
| """ |
| return timestamp.seconds + float(timestamp.nanos) / 10**9 |