private async Task <StartableWorkflow> InstantiateStartableWorkflow(StartableWorkflowDefinition startableWorkflowDefinition, CancellationToken cancellationToken)
{
var workflowInstance = await _workflowFactory.InstantiateAsync(
startableWorkflowDefinition.WorkflowBlueprint,
startableWorkflowDefinition.CorrelationId,
startableWorkflowDefinition.ContextId,
cancellationToken : cancellationToken);
await _workflowInstanceStore.SaveAsync(workflowInstance, cancellationToken);
return(new StartableWorkflow(startableWorkflowDefinition.WorkflowBlueprint, workflowInstance, startableWorkflowDefinition.ActivityId));
}
public async Task <RunWorkflowResult?> FindAndRestartTestWorkflowAsync(
string workflowDefinitionId,
string activityId,
int version,
string signalRConnectionId,
string lastWorkflowInstanceId,
string?tenantId = default,
CancellationToken cancellationToken = default)
{
var workflowBlueprint = await _workflowRegistry.FindAsync(workflowDefinitionId, VersionOptions.SpecificVersion(version), tenantId, cancellationToken);
if (workflowBlueprint == null)
{
return(null);
}
var lastWorkflowInstance = await _workflowInstanceStore.FindAsync(new EntityIdSpecification <WorkflowInstance>(lastWorkflowInstanceId), cancellationToken);
if (lastWorkflowInstance == null)
{
return(null);
}
var startActivity = workflowBlueprint.Activities.First(x => x.Id == activityId);
var startableWorkflowDefinition = new StartableWorkflowDefinition(workflowBlueprint, startActivity.Id);
var workflow = await InstantiateStartableWorkflow(startableWorkflowDefinition, cancellationToken);
var previousActivityData = GetActivityDataFromLastWorkflowInstance(lastWorkflowInstance, workflowBlueprint, activityId);
MergeActivityDataIntoInstance(workflow.WorkflowInstance, previousActivityData);
SetMetadata(workflow.WorkflowInstance, signalRConnectionId);
//if previousActivityOutput has any items, then the first one is from activity closest to the starting one
var previousActivityOutput = previousActivityData.Count == 0 ? null : previousActivityData.First().Value?.GetItem("Output");
return(await ExecuteStartableWorkflowAsync(workflow, new WorkflowInput(previousActivityOutput), cancellationToken));
}