protected override bool ObservedDataMeetControlCriterion(Dictionary <Type, List <IDatum> > typeData)
{
bool satisfied = false;
// if there is no ongoing control statement, then check all available statements.
if (_ongoingControlStatement == null)
{
foreach (AsplStatement statement in Statements)
{
if (statement.Criterion.SatisfiedBy(typeData))
{
_statementToBeginControl = statement;
satisfied = true;
break;
}
}
}
// otherwise, recheck the criterion of the ongoing control statement. we'll continue
// with control as long as the ongoing criterion continues to be satisfied. we will
// not switch to a new control statement until the current one becomes unsatisfied.
else
{
satisfied = _ongoingControlStatement.Criterion.SatisfiedBy(typeData);
}
return(satisfied);
}
protected override async Task OnStateChangedAsync(SensingAgentState previousState, SensingAgentState currentState, CancellationToken cancellationToken)
{
await base.OnStateChangedAsync(previousState, currentState, cancellationToken);
List <ProtocolSetting> newSettings = new List <ProtocolSetting>();
// first gather up settings to apply as a result of exiting the previous state
if (previousState == SensingAgentState.ActiveObservation)
{
newSettings.AddRange(EndActiveObservationSettings);
}
// next gather up settings to apply as a result of entering the current state
if (currentState == SensingAgentState.ActiveObservation)
{
newSettings.AddRange(BeginActiveObservationSettings);
}
else if (currentState == SensingAgentState.OpportunisticControl || currentState == SensingAgentState.ActiveControl)
{
// hang on to the begin-control statement. we need ensure that the
// same statement used to begin control is also used to end it.
_ongoingControlStatement = _statementToBeginControl;
// reset the begin-control statement. we won't set it again until
// control has ended and we've reset the ongoing control statement.
_statementToBeginControl = null;
// add the begin-control settings
newSettings.AddRange(_ongoingControlStatement.BeginControlSettings);
// update state description to include the ongoing-control statement
StateDescription += ": " + _ongoingControlStatement.Id;
}
else if (currentState == SensingAgentState.EndingControl)
{
newSettings.AddRange(_ongoingControlStatement.EndControlSettings);
_ongoingControlStatement = null;
}
if (newSettings.Count > 0)
{
SensusServiceHelper.Logger.Log("Applying " + newSettings.Count + " protocol setting(s) for transition from " + previousState + " to " + currentState + ".", LoggingLevel.Normal, GetType());
await(Protocol as Protocol).ApplySettingsAsync(newSettings, cancellationToken);
}
}
