public IProgressObserver Create(ProgressStartEvent begin, Func <Exception, ProgressEndEvent>?onError = null, Func <ProgressEndEvent>?onComplete = null)
{
// ReSharper disable once ConditionIsAlwaysTrueOrFalse
if (begin.ProgressId is null)
{
begin = begin with {
ProgressId = new ProgressToken(Guid.NewGuid().ToString())
};
}
if (_activeObservers.TryGetValue(begin.ProgressId, out var item))
{
return(item);
}
onError ??= error => new ProgressEndEvent {
Message = error.ToString()
};
onComplete ??= () => new ProgressEndEvent();
var cts = new CancellationTokenSource();
var observer = new ProgressObserver(
_router,
begin,
onError,
onComplete,
cts.Token
);
_activeObservers.TryAdd(observer.ProgressId, observer);
_activeObserverTokens.TryAdd(observer.ProgressId, cts);
return(observer);
}
public IProgressObserver Create(ProgressStartEvent begin, Func <Exception, ProgressEndEvent>?onError = null, Func <ProgressEndEvent>?onComplete = null)
{
if (EqualityComparer <ProgressToken> .Default.Equals(begin.ProgressId, default))
{
begin.ProgressId = new ProgressToken(Guid.NewGuid().ToString());
}
if (_activeObservers.TryGetValue(begin.ProgressId, out var item))
{
return(item);
}
onError ??= error => new ProgressEndEvent {
Message = error.ToString()
};
onComplete ??= () => new ProgressEndEvent();
var cts = new CancellationTokenSource();
var observer = new ProgressObserver(
_router,
begin,
onError,
onComplete,
cts.Token
);
_activeObservers.TryAdd(observer.ProgressId, observer);
_activeObserverTokens.TryAdd(observer.ProgressId, cts);
return(observer);
}