public AggregateProvisioningStateFlow(
params IProvisioningStateFlow[] flows)
{
this.flows = flows.ToList();
this.currentFlow = this.firstFlow = flows.FirstOrDefault();
this.lastFlow = flows.LastOrDefault();
}
public async Task <IProvisioningJob> ScheduleJobAsync(IProvisioningStateFlow flow)
{
var scope = this.serviceProvider.CreateScope();
var job = new ProvisioningJob(flow, scope);
await job.InitializeAsync();
if (!this.jobsByIds.TryAdd(job.Id, job))
{
throw new InvalidOperationException("Could not add job to concurrent dictionary.");
}
this.jobQueue.Enqueue(job);
return(job);
}
public async Task <IProvisioningState?> GetNextStateAsync(NextStateContext context)
{
var nextState = await this.currentFlow.GetNextStateAsync(context);
if (nextState != null)
{
return(nextState);
}
if (this.currentFlow == this.lastFlow)
{
return(null);
}
var currentFlowIndex = this.flows.IndexOf(this.currentFlow);
this.currentFlow = this.flows[currentFlowIndex + 1];
return(await this.currentFlow.GetInitialStateAsync(
new InitialStateContext(
context.Mediator,
context.StateFactory)));
}
