private void FindLocalFileChanges(string path)
{
DirectoryInfo directoryInfo = new DirectoryInfo(path);
foreach (DirectoryInfo dir in directoryInfo.GetDirectories())
{
FindLocalFileChanges(dir.FullName);
}
foreach (FileInfo fi in directoryInfo.GetFiles())
{
string uri = fi.FullName.Substring(folderPath.Length + 1);
if (Path.GetExtension(fi.Name).ToUpperInvariant() == ".SYNC")
{
continue;
}
else
{
ItemMetadata existingItem;
if (!metadataStore.TryGetItem(uri, out existingItem)) //Create
{
ItemMetadata item = new ItemMetadata();
item.Uri = uri;
item.IsTombstone = false;
item.ItemId = new SyncId(new SyncGlobalId(0, Guid.NewGuid()));
System.Diagnostics.Debug.WriteLine("FindLocalFileChanges: Create found for uri:" + uri + " ItemID: " + item.ItemId);
item.CreationVersion = new SyncVersion(0, tickCount);
item.ChangeVersion = item.CreationVersion;
item.LastWriteTimeUtc = fi.LastWriteTimeUtc;
metadataStore.SetItemInfo(item);
}
else
{
if (existingItem.LastWriteTimeUtc == null || fi.LastWriteTimeUtc > existingItem.LastWriteTimeUtc)
{
System.Diagnostics.Debug.WriteLine("FindLocalFileChanges: File has been changed: " + uri);
existingItem.ChangeVersion = new SyncVersion(0, tickCount);
existingItem.LastWriteTimeUtc = fi.LastWriteTimeUtc;
metadataStore.SetItemInfo(existingItem);
}
else
{
System.Diagnostics.Debug.WriteLine("No change found for file : " + uri);
}
}
}
}
List<ItemMetadata> toUpdate = new List<ItemMetadata>();
foreach (ItemMetadata item in metadataStore)
{
if (!File.Exists(Path.Combine(FolderPath, item.Uri)))
{
if (!item.IsTombstone)
{
item.IsTombstone = true;
item.ChangeVersion = new SyncVersion(0, tickCount);
toUpdate.Add(item);
}
}
}
foreach (ItemMetadata item in toUpdate)
{
metadataStore.SetItemInfo(item);
}
}
public MetadataStore UpdateItemWithReturn(ItemMetadata item)
{
metadataStore.SetItemInfo(item);
return metadataStore;
}
public void UpdateItemItem(ItemMetadata item)
{
metadataStore.SetItemInfo(item);
}
public ItemMetadata GetItemMetaData(SaveChangeAction saveChangeAction, ItemChange change, DataTransfer data)
{
ItemMetadata item;
if (saveChangeAction == SaveChangeAction.UpdateVersionOnly || ((change.ChangeKind & ChangeKind.Deleted) == ChangeKind.Deleted))
{
if (!metadataStore.TryGetItem(change.ItemId, out item))
{
item = new ItemMetadata();
item.Uri = String.Empty;
}
}
else
{
item = new ItemMetadata();
item.Uri = data.Uri;
}
item.ItemId = change.ItemId;
item.CreationVersion = change.CreationVersion;
item.ChangeVersion = change.ChangeVersion;
if ((change.ChangeKind & ChangeKind.Deleted) == ChangeKind.Deleted)
item.IsTombstone = true;
if (!metadataStore.Has(item.ItemId))
{
ItemMetadata oldItem;
if (metadataStore.TryGetItem(item.Uri, out oldItem))
{
if (item.ItemId.CompareTo(oldItem.ItemId) > 0)
{
oldItem.IsTombstone = true;
oldItem.Uri = String.Empty;
oldItem.ChangeVersion = new SyncVersion(0, tickCount);
}
else
{
item.IsTombstone = true;
item.Uri = String.Empty;
item.ChangeVersion = new SyncVersion(0, tickCount);
}
metadataStore.SetItemInfo(item);
metadataStore.SetItemInfo(oldItem);
}
}
metadataStore.SetItemInfo(item);
return item;
}
public void SaveItemChange(SaveChangeAction saveChangeAction, ItemChange change, SaveChangeContext context)
{
DataTransfer data = context.ChangeData as DataTransfer;
switch (saveChangeAction)
{
case SaveChangeAction.Create:
{
ItemMetadata item = new ItemMetadata();
item.ItemId = change.ItemId;
item.ChangeVersion = change.ChangeVersion;
item.CreationVersion = change.CreationVersion;
item.Uri = data.Uri;
data.DataStream.Position = 0;
System.Diagnostics.Debug.WriteLine("Uploading File:" + item.Uri);
service.UploadFile(data.DataStream.Length, item, data.DataStream);
data.DataStream.Close();
sync.UpdateItemItem(item);
break;
}
case SaveChangeAction.DeleteAndStoreTombstone:
{
ItemMetadata item = sync.GetItemMetaData(saveChangeAction, change, data);
sync.DeleteItem(change.ItemId);
service.DeleteFile(change.ItemId, item.Uri);
break;
}
default:
{
throw new NotImplementedException(saveChangeAction + " ChangeAction is not implemented!");
}
}
context.GetUpdatedDestinationKnowledge(out myKnowledge, out myForgottenKnowledge);
}
private void UpdateOrCreateFile(DataTransfer data, ItemMetadata item)
{
FileInfo fileInfo = new FileInfo(Path.Combine(folderPath, item.Uri));
if (!fileInfo.Directory.Exists)
fileInfo.Directory.Create();
using (FileStream outputStream = new FileStream(Path.Combine(folderPath, item.Uri), FileMode.OpenOrCreate))
{
const int copyBlockSize = 4096;
byte[] buffer = new byte[copyBlockSize];
int bytesRead;
while ((bytesRead = data.DataStream.Read(buffer, 0, copyBlockSize)) > 0)
outputStream.Write(buffer, 0, bytesRead);
outputStream.SetLength(outputStream.Position);
}
item.LastWriteTimeUtc = fileInfo.LastWriteTimeUtc;
data.DataStream.Close();
}
