private void AfterUpdate(BaseItem sourceItem, BaseItem targetItem)
{
if (targetItem.Association == null)
{
targetItem.Association = sourceItem.Association;
}
targetItem.ChangeNumber = sourceItem.ChangeNumber;
var link = LinkStatusTableModel.GetDefault().GetItem(sourceItem);
if (link != null)
{
link.ChangeNumber = sourceItem.ChangeNumber;
LinkStatusTableModel.GetDefault().UpdateItem(link, link.Id);
targetItem.Id = link.TargetItemId;
ItemTableModel.GetDefault().UpdateItem(sourceItem, sourceItem.Id);
ItemTableModel.GetDefault().UpdateItem(targetItem, targetItem.Id);
}
var historyEntry = new SyncHistoryEntry();
historyEntry.CreateDate = DateTime.Now;
historyEntry.SourceItemId = sourceItem.Id;
historyEntry.TargetItemId = targetItem.Id;
historyEntry.Result = sourceItem.AdapterType == _sourceEntityAdapter.GetType()
? SyncResult.Sent
: SyncResult.Received;
SyncHistoryTableModel.GetDefault().InsertItem(historyEntry);
}
private void AfterInsert(BaseItem sourceItem, BaseItem targetItem)
{
if (targetItem.Association == null)
{
targetItem.Association = sourceItem.Association;
}
//check if item with same path already exists
var existingItem = ItemTableModel.GetDefault().GetItem(targetItem);
if (existingItem != null)
{
ItemTableModel.GetDefault().UpdateItem(targetItem, existingItem.Id);
targetItem.Id = existingItem.Id;
}
else
{
ItemTableModel.GetDefault().InsertItem(targetItem);
targetItem = ItemTableModel.GetDefault().GetLastInsertItem();
}
if (LinkStatusTableModel.GetDefault().GetItem(sourceItem) == null)
{
var link = new LinkStatus(sourceItem, targetItem);
LinkStatusTableModel.GetDefault().InsertItem(link);
}
var historyEntry = new SyncHistoryEntry();
historyEntry.CreateDate = DateTime.Now;
historyEntry.SourceItemId = sourceItem.Id;
historyEntry.TargetItemId = targetItem.Id;
historyEntry.Result = sourceItem.AdapterType == _sourceEntityAdapter.GetType()
? SyncResult.Sent
: SyncResult.Received;
SyncHistoryTableModel.GetDefault().InsertItem(historyEntry);
}
protected async Task ProcessDeletions(List <BaseItem> deletedItems)
{
await SetExecutionStatus(ExecutionStatus.Deletions);
foreach (var item in deletedItems)
{
try
{
if (item.AdapterType == _targetEntityAdapter.GetType() &&
item.Association.SyncDirection == SyncDirection.FullSync)
{
await _sourceEntityAdapter.DeleteItem(item);
}
if (item.AdapterType == _sourceEntityAdapter.GetType() &&
item.Association.SyncDirection == SyncDirection.FullSync)
{
await _targetEntityAdapter.DeleteItem(item);
}
var link = LinkStatusTableModel.GetDefault().GetItem(item);
if (link != null && item.Association.SyncDirection == SyncDirection.FullSync)
{
//the linked item should only be deleted from the database if its a full sync
//otherwise changes might not be tracked anymore if the user makes changes to the sync direction
var linkedItem = ItemTableModel.GetDefault().GetItem(link.TargetItemId);
if (linkedItem != null)
{
if (linkedItem.IsCollection)
{
var childItems = ItemTableModel.GetDefault().GetFilesForFolder(linkedItem.EntityId);
foreach (var childItem in childItems)
{
var childLink = LinkStatusTableModel.GetDefault().GetItem(childItem);
if (childLink != null)
{
LinkStatusTableModel.GetDefault().DeleteItem(childLink.Id);
}
ItemTableModel.GetDefault().DeleteItem(childItem.Id);
}
}
ItemTableModel.GetDefault().DeleteItem(linkedItem.Id);
var historyEntry = new SyncHistoryEntry();
historyEntry.CreateDate = DateTime.Now;
historyEntry.Result = SyncResult.Deleted;
historyEntry.OldItemDisplayName = item.DisplayName;
SyncHistoryTableModel.GetDefault().InsertItem(historyEntry);
}
}
if (link != null)
{
LinkStatusTableModel.GetDefault().DeleteItem(link.Id);
}
if (item.IsCollection)
{
var childItems = ItemTableModel.GetDefault().GetFilesForFolder(item.EntityId);
foreach (var childItem in childItems)
{
ItemTableModel.GetDefault().DeleteItem(childItem.Id);
_deletedCount++;
}
}
ItemTableModel.GetDefault().DeleteItem(item.Id);
_deletedCount++;
}
catch (Exception e)
{
ToastHelper.SendToast(string.Format("Message: {0}, EntitityId: {1}", e.Message, item.EntityId));
await
LogHelper.Write(string.Format("Message: {0}, EntitityId: {1} StackTrace:\r\n{2}", e.Message,
item.EntityId, e.StackTrace));
}
}
}
protected async Task ProcessUpdates(IEnumerable <dynamic> itemsToUpdate)
{
var toUpdate = itemsToUpdate as IList <dynamic> ?? itemsToUpdate.ToList();
await LogHelper.Write($"{toUpdate.Count} items to update");
foreach (var item in toUpdate)
{
try
{
await SetExectuingFileName(item.BaseItem.EntityId);
if (ExecutionContext.Instance.Status == ExecutionStatus.Stopped)
{
break;
}
//the root item of an association should not be created again
if (item.BaseItem.Id == item.BaseItem.Association.LocalFolderId || item.BaseItem.Id == item.BaseItem.Association.RemoteFolderId)
{
continue;
}
//skip files bigger than 50MB, these will have to be synced manually
//otherwise the upload/download could take too long and task would be terminated
//TODO make this configurable
if (item.BaseItem.Size > (50 * 1024 * 1024) & _isBackgroundTask)
{
item.BaseItem.SyncPostponed = true;
ItemTableModel.GetDefault().UpdateItem(item.BaseItem, item.BaseItem.Id);
continue;
}
//get the linked item
var linkedItem =
ItemTableModel.GetDefault()
.GetItem(item.BaseItem.Id == item.LinkStatus.SourceItemId
? item.LinkStatus.TargetItemId
: item.LinkStatus.SourceItemId);
//if both (item and the linkedItem) have a higher changenum than the link we have a conflict.
//That means both item have been updated since the last time we checked.
//so we check which one has the latest change and if it is the current item we update ititem.LinkStatus
if (linkedItem != null && item.BaseItem.ChangeNumber > item.LinkStatus.ChangeNumber &&
linkedItem.ChangeNumber > item.LinkStatus.ChangeNumber)
{
if (item.BaseItem.LastModified > linkedItem.LastModified)
{
var result = await Update(item.BaseItem);
AfterUpdate(item.BaseItem, result);
}
}
else
{
var result = await Update(item.BaseItem);
AfterUpdate(item.BaseItem, result);
}
if (await TimeIsOver())
{
break;
}
}
catch (Exception e)
{
var historyEntry = new SyncHistoryEntry();
historyEntry.CreateDate = DateTime.Now;
historyEntry.SourceItemId = item.BaseItem.Id;
historyEntry.Result = SyncResult.Failed;
historyEntry.Message = e.Message;
SyncHistoryTableModel.GetDefault().InsertItem(historyEntry);
ToastHelper.SendToast(string.Format("Message: {0}, EntitityId: {1}", e.Message, item.BaseItem.EntityId));
await
LogHelper.Write(string.Format("Message: {0}, EntitityId: {1} StackTrace:\r\n{2}", e.Message,
item.BaseItem.EntityId, e.StackTrace));
}
}
}
