roboto.domain.topics.parquet.parquet_topic_reader#

Module Contents#

class roboto.domain.topics.parquet.parquet_topic_reader.ParquetTopicReader(roboto_client)#

Private interface for retrieving topic data stored in Parquet files.

Note

This is not intended as a public API. To access topic data, prefer the get_data or get_data_as_df methods on Topic, MessagePath, or Event.

static accepts(message_paths_to_representations)#

Parameters:: message_paths_to_representations (collections.abc.Iterable[roboto.domain.topics.operations.MessagePathRepresentationMapping])
Return type:: bool

get_data(message_paths_to_representations, start_time=None, end_time=None, timestamp_message_path_representation_mapping=None)#

Parameters:

message_paths_to_representations (collections.abc.Iterable[roboto.domain.topics.operations.MessagePathRepresentationMapping])
start_time (Optional[int])
end_time (Optional[int])
timestamp_message_path_representation_mapping (Optional[roboto.domain.topics.operations.MessagePathRepresentationMapping])

Return type:

collections.abc.Generator[tuple[roboto.domain.topics.topic_reader.Timestamp, dict[str, Any]], None, None]

get_data_as_df(message_paths_to_representations, start_time=None, end_time=None, timestamp_message_path_representation_mapping=None)#

Parameters:

message_paths_to_representations (collections.abc.Iterable[roboto.domain.topics.operations.MessagePathRepresentationMapping])
start_time (Optional[int])
end_time (Optional[int])
timestamp_message_path_representation_mapping (Optional[roboto.domain.topics.operations.MessagePathRepresentationMapping])

Return type:

tuple[pandas.Series, pandas.DataFrame]