public async Task SignalTasksCompleted(TaskExecutionRequest request)
{
if (request.TaskOrchestratorInstanceId != CurrentRequest.TaskOrchestratorInstanceId)
{
// this would be bad but should never happen
}
CurrentRequest = null;
await client.RaiseEventAsync(request.TaskOrchestratorInstanceId, "TasksCompleted", null);
await RunNextTaskIfComputeIsAvailable();
}
private async Task RunNextTaskIfComputeIsAvailable()
{
if (Status != ComputeSetStatus.Running)
{
if (Status == ComputeSetStatus.NotStarted)
{
Entity.Current.StartNewOrchestration(nameof(Orchestrators.StartComputeSetOrchestrator), Entity.Current.EntityKey);
Status = ComputeSetStatus.Starting;
}
return;
}
var computeIsAvailable = CurrentRequest == null;
if (!computeIsAvailable)
{
return;
}
if (!InstanceIdQueue.TryDequeue(out var instanceId))
{
// no pending tasks
return;
}
// get the task hierarchy from the input of the orchestrator
// (so the entity only needs to keep a queue of orchestration ids)
var taskOrchestrator = await client.GetStatusAsync(instanceId);
var taskHierarchy = taskOrchestrator.Input.ToObject <TaskHierarchy>();
CurrentRequest = new TaskExecutionRequest
{
TaskOrchestratorInstanceId = instanceId,
Tasks = taskHierarchy
};
Entity.Current.StartNewOrchestration(nameof(Orchestrators.TaskExecutionOrchestrator), CurrentRequest);
}