Source code for bosdyn.bddf.protobuf_series_writer

# Copyright (c) 2021 Boston Dynamics, Inc.  All rights reserved.
# Downloading, reproducing, distributing or otherwise using the SDK Software
# is subject to the terms and conditions of the Boston Dynamics Software
# Development Kit License (20191101-BDSDK-SL).

"""Class for registering a series which stores protobuf messages in a message series."""

from .bosdyn import MessageChannel
from .common import PROTOBUF_CONTENT_TYPE

[docs]class ProtobufSeriesWriter: # pylint: disable=too-many-instance-attributes """A class for registering a series which stores protobuf messages in a message series. The series is named by a 'channel_name' which defaults to the full type name of the protobuf type. """ def __init__( # pylint: disable=too-many-arguments self, data_writer, protobuf_type, channel_name=None, is_metadata=False, annotations=None, additional_index_names=None): self._data_writer = data_writer self._protobuf_type = protobuf_type self._type_name = protobuf_type.DESCRIPTOR.full_name self._channel_name = channel_name or self._type_name self._series_spec = {'bosdyn:channel': self._channel_name} self._series_index = self._data_writer.add_message_series( self.series_type, self.series_spec, content_type=PROTOBUF_CONTENT_TYPE, type_name=self._type_name, is_metadata=is_metadata, annotations=annotations, additional_index_names=additional_index_names)
[docs] def write(self, timestamp_nsec, protobuf, additional_indexs=None): """Store protobuf in the file. Args timestamp_nsec: nsec since unix epoch to timestamp the data protobuf: a protobuf message, not serialized. additional_indexes: additional timestamps if needed for this channel Raises DataFormatError if the data or additional_indexes are not valid for this series. """ self._data_writer.write_data(self._series_index, timestamp_nsec, protobuf.SerializeToString(), additional_indexs)
@property def series_type(self): """Return the series type string.""" return MessageChannel.SERIES_TYPE @property def series_spec(self): """Return the series_spec for the series.""" return self._series_spec