root/org.eso.ias/org.eso.ias.sink/org.eso.ias.sink.email/AlarmStateTracker

AlarmStateTracker

org.eso.ias.sink.email.AlarmStateTracker

See theAlarmStateTracker companion object

AlarmStateTracker records the changes of the state of an alarm to be notified to the user by email or some other mechanism.

The update of an alarm is a AlarmState. The state is one of the values defined in Alarm so it records activation, priority, validity and deactivation.

The tracker saves the state of the last round i.e. the actual state before resetting. This allows to know if the state changed since the last reset and also avoid saving states if they did not change from one time interval to another

The AlarmStateTracker is immutable. New change of state are added at the head of the list.

Value parameters

id: the identifier of the alarm
stateChanges: The state changes recorded so far for the current time interval
stateOfLastRound: the last state before resetting

Attributes

Companion: object
Graph
Supertypes: class Object

trait Matchable

class Any

Members list

Value members

Concrete methods

Attributes

Returns: The actual state, if exists

Attributes

Returns: the number of changes of states recorded

Reset the AlarmStateTracker to be ready to record the changes of states of the next time interval

Attributes

Returns: The AlarmStateTracker to record changes during the next time interval

Build a new AlarmStateTracker that records the new alarm change at a given time.

Value parameters

alarm: The new alarm
timestamp: The timestamp when the alarm has been produced
validity: the validity

Attributes

Returns: the AlarmStateTracker that records this change

Concrete fields

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