hbp_nrp_backend package

This package contains the python code to run the REST web server and supportive tooling

exception NRPServicesClientErrorException(message, error_type='Client error', error_code=400, data=None)[source]

Bases: hbp_nrp_backend.NRPServicesGeneralException

Exception class for client (4xx) errors. It can be used to return meaningful messages to the ExD frontend.

Parameters

  • message – message displayed to the end user.

  • error_code – The HTTP error code to send to the frontend.

exception NRPServicesDuplicateNameException(message, error_type='Duplicate name error', error_code=403, data=None)[source]

Bases: hbp_nrp_backend.NRPServicesGeneralException

Duplicate name exception that can be used to return meaningful messages to the HBP frontend in case simulation scripts (transfer-functions or state-machines) or populations contain duplicate names.

Parameters

message – message displayed to the end user.

exception NRPServicesGeneralException(message, error_type, error_code=500, data=None)[source]

Bases: Exception

General exception class that can be used to return meaningful messages to the ExD frontend.

Parameters

  • message – message displayed to the end user.

  • error_type – Type of error (like ‘CLE Error’)

  • error_code – The HTTP error code to send to the frontend.

exception NRPServicesStateException(message, error_type='Transition error', error_code=400, data=None)[source]

Bases: hbp_nrp_backend.NRPServicesGeneralException

State exception class that can be used to return meaningful messages to the HBP frontend.

Parameters

message – message displayed to the end user.

exception NRPServicesStateMachineException(message, error_type='State machine error', error_code=400, data=None)[source]

Bases: hbp_nrp_backend.NRPServicesClientErrorException

State machine exception class that can be used to return meaningful messages to the HBP frontend in case source code updates fail.

Parameters

message – message displayed to the end user.

exception NRPServicesTransferFunctionException(message, error_type='Transfer function error', error_code=400, data=None)[source]

Bases: hbp_nrp_backend.NRPServicesGeneralException

Transfer function exception class that can be used to return meaningful messages to the HBP frontend in case source code updates fail.

Parameters

message – message displayed to the end user.

exception NRPServicesUnavailableROSService(message, data=None)[source]

Bases: hbp_nrp_backend.NRPServicesGeneralException

Server error with status 500 (internal error) issued when a ROS service is unavailable. It can be used to return meaningful messages to the ExD frontend.

Parameters

message – message displayed to the end user. It contains the text of the corresponding ROS exception

exception NRPServicesWrongUserException[source]

Bases: hbp_nrp_backend.NRPServicesClientErrorException

Exception class that can be used to return meaningful messages to the HBP frontend in case an invalid user is detected.

Parameters

message – message displayed to the end user.

get_date_and_time_string()[source]

Utility function that returns a string reflecting the current date and time with a format that is suitable for file or folder names

Returns

a string containing the date and time under the format YYYY-mm-dd_HH-MM-SS