/// <summary>
/// Reports the state change for the condition.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="ignoreDisabledState">if set to <c>true</c> the event is reported event if the condition is in the disabled state.</param>
protected void ReportStateChange(ISystemContext context, bool ignoreDisabledState)
{
// check the disabled state.
if (!ignoreDisabledState && !this.EnabledState.Id.Value)
{
return;
}
if (AutoReportStateChanges)
{
// create a new event instance.
this.EventId.Value = Guid.NewGuid().ToByteArray();
this.Time.Value = DateTime.UtcNow;
this.ReceiveTime.Value = this.Time.Value;
ClearChangeMasks(context, includeChildren: true);
// report a state change event.
if (EventsMonitored())
{
InstanceStateSnapshot snapshot = new InstanceStateSnapshot();
snapshot.Initialize(context, this);
ReportEvent(context, snapshot);
}
}
}
/// <summary>
/// Reports the state change for the condition.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="ignoreDisabledState">if set to <c>true</c> the event is reported event if the condition is in the disabled state.</param>
protected void ReportStateChange(ISystemContext context, bool ignoreDisabledState)
{
// check the disabled state.
if (!ignoreDisabledState && !this.EnabledState.Id.Value)
{
return;
}
if (AutoReportStateChanges)
{
// create a new event instance.
this.EventId.Value = Guid.NewGuid().ToByteArray();
this.Time.Value = DateTime.UtcNow;
this.ReceiveTime.Value = this.Time.Value;
// report a state change event.
if (this.AreEventsMonitored)
{
InstanceStateSnapshot snapshot = new InstanceStateSnapshot();
snapshot.Initialize(context, this);
ReportEvent(context, snapshot);
}
}
}
/// <summary>
/// Returns the last event produced for any conditions belonging to the node or its chilren.
/// </summary>
/// <param name="context">The system context.</param>
/// <param name="events">The list of condition events to return.</param>
/// <param name="includeChildren">Whether to recursively report events for the children.</param>
public override void ConditionRefresh(ISystemContext context, List<IFilterTarget> events, bool includeChildren)
{
// need to check if this source has already been processed during this refresh operation.
for (int ii = 0; ii < events.Count; ii++)
{
InstanceStateSnapshot e = events[ii] as InstanceStateSnapshot;
if (e != null && Object.ReferenceEquals(e.Handle, this))
{
return;
}
}
// report the dialog.
if (m_dialog != null)
{
// do not refresh dialogs that are not active.
if (m_dialog.Retain.Value)
{
// create a snapshot.
InstanceStateSnapshot e = new InstanceStateSnapshot();
e.Initialize(context, m_dialog);
// set the handle of the snapshot to check for duplicates.
e.Handle = this;
events.Add(e);
}
}
// the alarm objects act as a cache for the last known state and are used to generate refresh events.
foreach (AlarmConditionState alarm in m_alarms.Values)
{
// do not refresh alarms that are not in an interesting state.
if (!alarm.Retain.Value)
{
continue;
}
// create a snapshot.
InstanceStateSnapshot e = new InstanceStateSnapshot();
e.Initialize(context, alarm);
// set the handle of the snapshot to check for duplicates.
e.Handle = this;
events.Add(e);
}
// report any active branches.
foreach (AlarmConditionState alarm in m_branches.Values)
{
// create a snapshot.
InstanceStateSnapshot e = new InstanceStateSnapshot();
e.Initialize(context, alarm);
// set the handle of the snapshot to check for duplicates.
e.Handle = this;
events.Add(e);
}
}
/// <summary>
/// Reports the changes to the alarm.
/// </summary>
private void ReportChanges(AlarmConditionState alarm)
{
// report changes to node attributes.
alarm.ClearChangeMasks(m_nodeManager.SystemContext, true);
// check if events are being monitored for the source.
if (this.AreEventsMonitored)
{
// create a snapshot.
InstanceStateSnapshot e = new InstanceStateSnapshot();
e.Initialize(m_nodeManager.SystemContext, alarm);
// report the event.
alarm.ReportEvent(m_nodeManager.SystemContext, e);
}
}