Source code for apache_beam.utils.proto_utils

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"""For internal use only; no backwards-compatibility guarantees."""

from __future__ import absolute_import
from __future__ import division

from google.protobuf import any_pb2
from google.protobuf import struct_pb2
from google.protobuf import timestamp_pb2


[docs]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
[docs]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
[docs]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
[docs]def pack_Struct(**kwargs): """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
[docs]def from_micros(cls, micros): result = cls() result.FromMicroseconds(micros) return result
[docs]def to_Timestamp(time): """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)
[docs]def from_Timestamp(timestamp): """Convert a Timestamp to a float expressed as seconds since the epoch. """ return timestamp.seconds + float(timestamp.nanos) / 10**9