public async Task <string> StartWorkflow <TData>(string workflowId, int?version, TData data = null, string reference = null)
where TData : class, new()
{
var def = _registry.GetDefinition(workflowId, version);
if (def == null)
{
throw new WorkflowNotRegisteredException(workflowId, version);
}
var wf = new WorkflowInstance
{
WorkflowDefinitionId = workflowId,
Version = def.Version,
Data = data,
Description = def.Description,
NextExecution = 0,
CreateTime = DateTime.Now.ToUniversalTime(),
Status = WorkflowStatus.Runnable,
Reference = reference
};
if ((def.DataType != null) && (data == null))
{
if (typeof(TData) == def.DataType)
{
wf.Data = new TData();
}
else
{
wf.Data = def.DataType.GetConstructor(new Type[0]).Invoke(new object[0]);
}
}
wf.ExecutionPointers.Add(_pointerFactory.BuildGenesisPointer(def));
await _middlewareRunner.RunPreMiddleware(wf, def);
string id = await _persistenceStore.CreateNewWorkflow(wf);
await _queueProvider.QueueWork(id, QueueType.Workflow);
await _queueProvider.QueueWork(id, QueueType.Index);
await _eventHub.PublishNotification(new WorkflowStarted()
{
EventTimeUtc = DateTime.UtcNow,
Reference = reference,
WorkflowInstanceId = id,
WorkflowDefinitionId = def.Id,
Version = def.Version
});
return(id);
}
