/// <summary>
/// Executes a node.
/// </summary>
/// <param name="Variables">Set of variables for the activity.</param>
/// <returns>Next node of execution, if different from the default, otherwise null (for default).</returns>
public override Task <LinkedListNode <IActivityNode> > Execute(Variables Variables)
{
if (!Variables.TryGetVariable(this.eventArgs, out Variable v) ||
!(v.ValueObject is SensorDataServerRequest e))
{
throw new Exception("Sensor data event arguments not found.");
}
LinkedList <Field> Fields = new LinkedList <Field>();
foreach (FieldNode Field in this.fields)
{
try
{
Field.AddFields(Fields, Variables);
}
catch (Exception ex)
{
ex = Log.UnnestException(ex);
e.ReportErrors(false, new ThingError(Field.ThingReference, DateTime.Now, ex.Message));
}
}
e.ReportFields(!this.more, Fields);
return(Task.FromResult <LinkedListNode <IActivityNode> >(null));
}
/// <summary>
/// Executes a node.
/// </summary>
/// <param name="Variables">Set of variables for the activity.</param>
/// <returns>Next node of execution, if different from the default, otherwise null (for default).</returns>
public override Task <LinkedListNode <IActivityNode> > Execute(Variables Variables)
{
if (!Variables.TryGetVariable(this.sensor, out Variable v))
{
throw new Exception("Sensor not found: " + this.sensor);
}
if (!(v.ValueObject is SensorServer Sensor))
{
throw new Exception("Not a sensor server object: " + this.sensor);
}
Dictionary <ThingReference, LinkedList <Field> > FieldsByThing = new Dictionary <ThingReference, LinkedList <Field> >();
ThingReference Ref;
foreach (FieldNode Field in this.fields)
{
Ref = Field.ThingReference;
if (!FieldsByThing.TryGetValue(Ref, out LinkedList <Field> Fields))
{
Fields = new LinkedList <Field>();
FieldsByThing[Ref] = Fields;
}
try
{
Field.AddFields(Fields, Variables);
}
catch (Exception ex)
{
Log.Critical(ex);
}
}
foreach (KeyValuePair <ThingReference, LinkedList <Field> > P in FieldsByThing)
{
LinkedList <Field> Fields = P.Value;
LinkedListNode <Field> Loop = Fields.First;
LinkedListNode <Field> Next;
bool Found = false;
while (Loop != null)
{
Next = Loop.Next;
if (Loop.Value.Type.HasFlag(Waher.Things.SensorData.FieldType.Momentary))
{
Found = true;
}
else
{
Fields.Remove(Loop);
}
Loop = Next;
}
if (Found)
{
Sensor.NewMomentaryValues(P.Key, Fields);
if (Sensor.Client.TryGetExtension(typeof(PepClient), out IXmppExtension Extension) &&
Extension is PepClient PepClient)
{
PepClient.Publish(new SensorData(Fields), null, null);
}
}
}
return(Task.FromResult <LinkedListNode <IActivityNode> >(null));
}
