necst.core.alert.alert_handler_node

class AlertHandlerNode(node_name, **kwargs)

Bases: Node

Node who knows system alert status.

This and subclass of this will subscribe to all alert topics, to use the alert status of whole system.

Examples

>>> class MyClass(necst.core.AlertHandlerNode):
...     def __init__(self):
...         self.pub = self.create_publisher(AlertMsg, "alert_any", 1)
...         self.create_timer(1, self.stream)
...     def stream(self):
...         subscribing_topics = [s.topic_name for s in self.subscriptions]
...         w = [self.status[topic].warning for topic in subscribing_topics]
...         c = [self.status[topic].critical for topic in subscribing_topics]
...         msg = AlertMsg(warning=any(w), critical=any(c), issuer="alert_any")
...         self.pub.publish(msg)

Parameters

node_name (str) –

property status: Status

previous

necst.core.alert

next

necst.core.alert.antenna_drive_range