public async Task <PushState> PushItem(IndexItemModel item)
{
Report($@"
---------------------------------------------------------------------------------
Begin synchronizing item {JsonConvert.SerializeObject(item, Formatting.Indented)}...");
_pusher.SetIndex(_indexerModel);
_pusher.SetItem(item);
var result = await Task.Run(() =>
{
try
{
entityRepository.BeginTransaction();
attributeRepository.BeginTransaction();
messageRepository.BeginTransaction();
var pushState = PushState.Success;
var destinationId = item.GetDestinationId();
if (!string.IsNullOrWhiteSpace(destinationId))
{
if (item.HasState(ItemState.Removed))
{
_pusher.Remove();
}
else
{
_pusher.Update();
}
}
else
{
destinationId = _pusher.GetDestinationId();
if (!string.IsNullOrWhiteSpace(destinationId))
{
if (item.HasState(ItemState.Removed))
{
_pusher.Remove(destinationId);
}
else
{
_pusher.Update(destinationId);
}
}
else // still cannot find a destinationId, which means the entity/attribute does not exists
{
pushState = _pusher.Create(out destinationId);
}
}
if (!string.IsNullOrWhiteSpace(destinationId) && (pushState & PushState.Success) > 0)
{
entityRepository.UpdateItemDestinationId(_indexerModel, item.GetSourceId(), destinationId);
// Detect dependencies that depends on "Synced" step
UpdateDependencies(item, destinationId);
}
else
{
// Signal to tell that the item is success or not
entityRepository.Retry(_indexerModel, item.GetId(), pushState);
}
entityRepository.Commit();
attributeRepository.Commit();
return(pushState);
}
catch
{
entityRepository.RollBack();
attributeRepository.RollBack();
// Update invalid item
// Increate retry count
// Next time when queue items, it will be put behind because of the retry count
entityRepository.Retry(_indexerModel, item.GetId(), PushState.Failed);
throw;
}
finally
{
Report($@"
Ended synchronizing...
---------------------------------------------------------------------------------
");
}
});
return(result);
}