public ActivityContext(Guid sagaId, IGrainFactory grainFactory, IGrainActivationContext grainContext, Dictionary <string, string> existingProperties)
{
SagaId = sagaId;
GrainFactory = grainFactory;
GrainContext = grainContext;
SagaProperties = new SagaPropertyBag(existingProperties);
}
public async Task Execute(IEnumerable <ActivityDefinition> activities, ISagaPropertyBag sagaProperties)
{
if (State.Status == SagaStatus.NotStarted)
{
State.Activities = activities.ToList();
State.Properties = sagaProperties is null
? new Dictionary <string, string>()
: ((SagaPropertyBag)sagaProperties).ContextProperties;
State.Status = SagaStatus.Executing;
await WriteStateAsync();
await RegisterReminderAsync();
}
await ResumeAsync();
}
public ActivityDefinition(Type type, ISagaPropertyBag properties)
{
Type = type;
Properties = properties;
}
public ISagaBuilder AddActivity <TActivity>(ISagaPropertyBag properties) where TActivity : IActivity
{
// todo: serialize dynamic activity config safely.
activities.Add(new ActivityDefinition(typeof(TActivity), properties));
return(this);
}
