public async Task DeleteNode([FromBody] NodeInstance node)
{
var transaction = DbContext.Database.BeginTransaction();
try
{
var existingNode = DbContext.NodeInstances.AsNoTracking().SingleOrDefault(a => a.ObjId == node.ObjId);
if (existingNode != null)
{
DbContext.Entry(existingNode).State = EntityState.Deleted;
}
await DbContext.SaveChangesAsync();
await transaction.CommitAsync();
try
{
var rootNode = _nodeInstanceCache.GetDriverNodeInstanceFromChild(node);
if (rootNode.ObjId == node.ObjId)
{
var driver = _driverNodeStore.GetDriver(rootNode.ObjId);
await _coreServer.StopDriver(driver);
}
else
{
await _notifyDriver.NotifyDeleted(node);
}
}
catch (Exception e)
{
SystemLogger.Instance.LogError(e, $"Error stopping driver {node.Name}...");
}
_nodeInstanceCache.Clear();
}
catch (Exception e)
{
transaction.Rollback();
SystemLogger.Instance.LogError(e, $"Could not {nameof(DeleteNode)} {nameof(NodeInstance)}", e);
throw;
}
}
public async Task <IEnumerable <NodeInstance> > Save([FromBody] List <NodeInstance> nodeInstances, bool reInit = true)
{
SystemLogger.Instance.LogDebug($"Begin NodeInstance save...");
var transaction = DbContext.Database.BeginTransaction();
try
{
SystemLogger.Instance.LogDebug("Start checking node instances...");
var dbEntries = DbContext.NodeInstances.AsNoTracking();
foreach (var node in nodeInstances)
{
node.This2ParentNodeInstance = null; //set root parent always to null -> if we are a slave server the parentid could be set
var state = await SetNodeInstanceState(node, null, dbEntries.ToDictionary(a => a.ObjId, a => a));
SystemLogger.Instance.LogDebug($"NodeInstance State Added Nodes {state.AddedNodeInstances.Count}, UpdatedNodes {state.UpdatedNodeInstances.Count}. AddedProperties: {state.AddedPropertyInstances.Count}, UpdatedProperties: {state.UpdatedPropertyInstances.Count}");
SystemLogger.Instance.LogDebug("Start add/updating entities...done");
DbContext.NodeInstances.AddRange(state.AddedNodeInstances);
DbContext.NodeInstances.UpdateRange(state.UpdatedNodeInstances);
DbContext.PropertyInstances.AddRange(state.AddedPropertyInstances);
DbContext.PropertyInstances.UpdateRange(state.UpdatedPropertyInstances);
SystemLogger.Instance.LogDebug("Start add/updating entities...done");
}
SystemLogger.Instance.LogDebug("Start checking node instances...done");
SystemLogger.Instance.LogDebug("Start checking deleted items...");
var flatList = nodeInstances.Flatten(a => a.InverseThis2ParentNodeInstanceNavigation).ToList();
var removedNodes = (from c in DbContext.NodeInstances
where !(from o in flatList select o.ObjId).Contains(c.ObjId)
select c).ToList();
if (_notifyDriver != null)
{
foreach (var removed in removedNodes)
{
try
{
await _notifyDriver.NotifyDeleted(removed);
}
catch (Exception e)
{
SystemLogger.Instance.LogError(e, "Could not call notify save");
}
}
}
SystemLogger.Instance.LogDebug($"Found {removedNodes.Count} items to delete...");
DbContext.RemoveRange(removedNodes);
SystemLogger.Instance.LogDebug("Start checking deleted items...done");
var settings = DbContext.Settings.SingleOrDefault(a => a.ValueKey == ServerInfo.DbConfigVersionKey);
if (settings != null)
{
settings.ValueInt++;
ServerInfo.DbConfigVersion = settings.ValueInt.GetValueOrDefault();
DbContext.Settings.Update(settings);
}
SystemLogger.Instance.LogDebug("Save and Commit changes");
DbContext.SaveChanges();
transaction.Commit();
_nodeInstanceCache.Clear();
SystemLogger.Instance.LogDebug("Save and Commit changes...done");
}
catch (Exception e)
{
transaction.Rollback();
SystemLogger.Instance.LogError(e, "Could not save nodeInstances", e);
throw;
}
SystemLogger.Instance.LogDebug($"Begin NodeInstance save...done");
if (reInit)
{
SystemLogger.Instance.LogDebug($"Begin NodeInstance re-init...");
await _server.ReInit();
SystemLogger.Instance.LogDebug($"Begin NodeInstance re-init...done");
}
return(Get());
}