public void Push(AasEventMsgEnvelope ev)
{
if (ev != null && _events != null)
{
_events.Add(ev);
}
}
public void PushEvent(AasEventMsgEnvelope ev)
{
if (ev == null || this._stack == null)
{
return;
}
lock (this._stack)
{
this._stack.Add(ev);
}
}
protected TraceStateBase FollowTraceState(TraceStateBase stateIn, AasEventMsgEnvelope ev)
{
// trivial
if (ev == null)
{
return(null);
}
// basically a unfold state machine
if (ev.SourceSemanticId.Matches(AasxPredefinedConcepts.AasEvents.Static.CD_StructureChangeOutwards,
AdminShell.Key.MatchMode.Relaxed)
// a in special format
&& ev.PayloadItems != null && ev.PayloadItems.Count == 1 &&
ev.PayloadItems[0] is AasPayloadStructuralChange evplsc &&
evplsc.Changes != null && evplsc.Changes.Count == 1 &&
evplsc.Changes[0].Reason == StructuralChangeReason.Modify)
{
// structural change with exactly 1 modification
// get a current key
var rf = evplsc.Changes[0].GetDataAsReferable();
rf.parent = null;
var currKey = rf.GetReference()?.Last;
// Transition NULL -> structural change
if (currKey != null && stateIn == null)
{
// start new state
var res = new TraceStateStructuralChangeOneModify()
{
CurrentPath = evplsc.Changes[0].Path.ReplaceLastKey(AdminShell.KeyList.CreateNew(currKey))
};
return(res);
}
else
if (currKey != null &&
stateIn is TraceStateStructuralChangeOneModify stateCurr &&
evplsc.Changes[0].Path.Matches(stateCurr.CurrentPath, AdminShell.Key.MatchMode.Relaxed))
{
// happy path: continue state
stateCurr.CurrentPath = stateCurr.CurrentPath.ReplaceLastKey(AdminShell.KeyList.CreateNew(currKey));
return(stateCurr);
}
}
// ok, no condition met. Return "false"
return(null);
}
public AasEventMsgEnvelope PopEvent()
{
// result
AasEventMsgEnvelope ev = null;
// get?
lock (this._stack)
{
if (this._stack.Count > 0)
{
ev = this._stack[0];
this._stack.RemoveAt(0);
}
}
// return if found or not ..
return(ev);
}
private AasEventMsgEnvelope JoinEvents_StructuralChangeOneModify(
AasEventMsgEnvelope a, AasEventMsgEnvelope b)
{
// based on the old
var joint = new AasEventMsgEnvelope(a);
// add last modified contents
if (joint.PayloadItems != null && joint.PayloadItems.Count == 1 &&
joint.PayloadItems[0] is AasPayloadStructuralChange jsc &&
jsc.Changes != null && jsc.Changes.Count == 1
// also for b
&& b?.PayloadItems != null && b.PayloadItems.Count == 1 &&
b.PayloadItems[0] is AasPayloadStructuralChange bsc &&
bsc.Changes != null && bsc.Changes.Count == 1)
{
jsc.Changes[0].Data = "" + bsc.Changes[0].Data;
}
// and return
return(joint);
}
public AasEventMsgEnvelope(AasEventMsgEnvelope other)
{
if (other == null)
{
return;
}
Timestamp = other.Timestamp;
Source = other.Source;
SourceSemanticId = other.SourceSemanticId;
ObservableReference = other.ObservableReference;
ObservableSemanticId = other.ObservableSemanticId;
Topic = other.Topic;
Subject = other.Subject;
if (other.PayloadItems != null)
{
Payloads = new ListOfAasPayloadBase(other.PayloadItems);
}
else if (other.PayloadsRaw != null)
{
Payloads = other;
}
}
/// <summary>
/// The Flyout can decide to handle events from the outside
/// </summary>
public virtual void PushEvent(AdminShellEvents.AasEventMsgEnvelope ev)
{
// default behavior: trigger event
EventTriggered?.Invoke(ev);
}