message_manager
Сlass operates with protobuff messages. used to create and parse messages.
Module Contents
Classes
- class message_manager.MessageManager(logger=logging, head_buffer_size=4)[source]
-
- static create_requests_message()[source]
Create Empty protobuf class instance for request message.
- Returns
Empty protobuf class instance.
- Return type
messages_pb2
- static create_answer_message()[source]
Create Empty protobuf class instance for answer message.
- Returns
Empty protobuf class instance.
- Return type
messages_pb2
- static build_request_from_file(path)[source]
Parsing data from message file to protobuf message instance.
- Parameters
path (string) – path to filename.txt with message.
- Returns
protobuf class instance of filled message from file.
- Return type
messages_pb2
- build_request_positions(self, positions)[source]
Сreating an instance of the protobuff class and fills it with the values of the actuators
- Parameters
positions (dict) – key - servo name and values - position.
- Returns
protobuf class instance of filled message with servos.
- Return type
messages_pb2
- static generate_message(message)[source]
Generate bytes string for sending message.
- Parameters
message (messages_pb2) – protobuf class instance of filled
message. –
- Returns
bytes string of message.
- Return type
bytes
- message_from_file(self, path)[source]
Function process the protobuff message. Measurement values of sensors, messages from player.exe and webots. Received messages are placed in the dictionary :param path: path to filename.txt with default message. :type path: [string]
- Returns
protobuf class instance, with values from file.
- Return type
messages_pb2
- get_answer_size(self, content_size)[source]
Сalculating message size from header bytes
- Parameters
content_size (bytes) – Byte size of answer message.
- Returns
Size of answer message.
- Return type
int
- add_initial_request(self, sensor_name, sensor_time)[source]
Generate bytes string for sending message.
- Parameters
sensor_name (string) – protobuf class instance of filled
message. –
- Returns
bytes string of message.
- Return type
bytes
- build_initial_request(self)[source]
Generate bytes string for initialization message.
- Returns
bytes string of message.
- Return type
bytes
- parse_answer_message(self, data)[source]
Parsing answer message from byte array to dict with measurements
- Parameters
data ([type]) – [description]
- Returns
[description]
- Return type
[type]
- static parse_message(message) dict[source]
Function process the protobuff message. Measurement values of sensors, messages from player.exe and webots. Received messages are placed in the dictionary :param message: protobuf class instance :type message: messages_pb2 :param of new message with filled or unfilled.:
- Returns
dict with keys of names sensors
- Return type
dict