yasmin_demos.service_client_demo.AddTwoIntsState Class Reference

Inheritance diagram for yasmin_demos.service_client_demo.AddTwoIntsState:

Collaboration diagram for yasmin_demos.service_client_demo.AddTwoIntsState:

Public Member Functions
None	__init__ (self)
AddTwoInts.Request	create_request_handler (self, Blackboard blackboard)
str	response_handler (self, Blackboard blackboard, AddTwoInts.Response response)
Public Member Functions inherited from yasmin_ros.service_state.ServiceState
None	__init__ (self, Type srv_type, str srv_name, Callable create_request_handler, Set[str] outcomes=None, Callable response_handler=None, CallbackGroup callback_group=None, Node node=None, float wait_timeout=None, float response_timeout=None, int maximum_retry=3)
str	execute (self, Blackboard blackboard)
None	response_callback (self, Future future)

Public Attributes
	create_request_handler
	response_handler
Public Attributes inherited from yasmin_ros.service_state.ServiceState
	response_callback = self._service_client.call_async(request)

Additional Inherited Members
Protected Attributes inherited from yasmin_ros.service_state.ServiceState
Callable[[Blackboard], Any]	_create_request_handler = create_request_handler
	Function to create service requests.
Callable[[Blackboard, Any], str]	_response_handler = response_handler
	Function to handle service responses.
float	_wait_timeout = wait_timeout
	Maximum wait time for service availability.
float	_response_timeout = response_timeout
	Timeout for the service response.
Node	_node = node
	The ROS 2 node used to communicate with the service.
str	_srv_name = srv_name
	Name of the service.
Client	_service_client
	Shared pointer to the service client.
Any	_response = None
	The response received from the service.
int	_maximum_retry = maximum_retry
	Maximum number of retries.
Event	_response_received_event = Event()
	Event to signal when the service response is received.

Detailed Description

A state that calls the AddTwoInts service to add two integers.

This class is a state in a finite state machine that sends a request
to the AddTwoInts service, retrieves the response, and updates the
blackboard with the result.

Attributes:
    service_type (type): The service type being used (AddTwoInts).
    service_name (str): The name of the service.
    outcomes (list): The list of possible outcomes for this state.

Constructor & Destructor Documentation

__init__()

None yasmin_demos.service_client_demo.AddTwoIntsState.__init__

(

self

)

Initializes the AddTwoIntsState.

Calls the parent constructor with the specific service type,
service name, request handler, outcomes, and response handler.

Member Function Documentation

create_request_handler()

AddTwoInts.Request yasmin_demos.service_client_demo.AddTwoIntsState.create_request_handler	(		self,
		Blackboard	blackboard )

Creates the service request from the blackboard data.

Args:
    blackboard (Blackboard): The blackboard containing the input values.

Returns:
    AddTwoInts.Request: The request object populated with values from the blackboard.

response_handler()

str yasmin_demos.service_client_demo.AddTwoIntsState.response_handler	(		self,
		Blackboard	blackboard,
		AddTwoInts.Response	response )

Processes the response from the AddTwoInts service.

Updates the blackboard with the sum result from the response.

Args:
    blackboard (Blackboard): The blackboard to update with the sum.
    response (AddTwoInts.Response): The response from the service call.

Returns:
    str: The outcome of the operation, which is "outcome1".

Member Data Documentation

create_request_handler

yasmin_demos.service_client_demo.AddTwoIntsState.create_request_handler

response_handler

yasmin_demos.service_client_demo.AddTwoIntsState.response_handler

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The documentation for this class was generated from the following file:

• yasmin_demos/yasmin_demos/service_client_demo.py