public void SaveData(Context ctx)
{
KpDatabase.UseFileTransactions = _app.GetBooleanPreference(PreferenceKey.UseFileTransactions);
using (IWriteTransaction trans = _app.GetFileStorage(Ioc).OpenWriteTransaction(Ioc, KpDatabase.UseFileTransactions))
{
DatabaseFormat.Save(KpDatabase, trans.OpenFile());
trans.CommitWrite();
}
}
public LoadDb(Activity activity, IKp2aApp app, IOConnectionInfo ioc, Task <MemoryStream> databaseData, CompositeKey compositeKey, String keyfileOrProvider, OnFinish finish) : base(activity, finish)
{
_app = app;
_ioc = ioc;
_databaseData = databaseData;
_compositeKey = compositeKey;
_keyfileOrProvider = keyfileOrProvider;
_rememberKeyfile = app.GetBooleanPreference(PreferenceKey.remember_keyfile);
}
public LoadDb(IKp2aApp app, IOConnectionInfo ioc, Task<MemoryStream> databaseData, CompositeKey compositeKey, String keyfileOrProvider, OnFinish finish)
: base(finish)
{
_app = app;
_ioc = ioc;
_databaseData = databaseData;
_compositeKey = compositeKey;
_keyfileOrProvider = keyfileOrProvider;
_rememberKeyfile = app.GetBooleanPreference(PreferenceKey.remember_keyfile);
}
public static void Copy(IOConnectionInfo targetIoc, IOConnectionInfo sourceIoc, IKp2aApp app)
{
IFileStorage sourceStorage = app.GetFileStorage(sourceIoc, false); //don't cache source. file won't be used ever again
IFileStorage targetStorage = app.GetFileStorage(targetIoc);
using (
var writeTransaction = targetStorage.OpenWriteTransaction(targetIoc,
app.GetBooleanPreference(
PreferenceKey.UseFileTransactions)))
{
using (var writeStream = writeTransaction.OpenFile())
{
sourceStorage.OpenFileForRead(sourceIoc).CopyTo(writeStream);
}
writeTransaction.CommitWrite();
}
}
public static void Copy(IOConnectionInfo targetIoc, IOConnectionInfo sourceIoc, IKp2aApp app)
{
IFileStorage sourceStorage = app.GetFileStorage(sourceIoc, false); //don't cache source. file won't be used ever again
IFileStorage targetStorage = app.GetFileStorage(targetIoc);
using (
var writeTransaction = targetStorage.OpenWriteTransaction(targetIoc,
app.GetBooleanPreference(
PreferenceKey.UseFileTransactions)))
{
using (var writeStream = writeTransaction.OpenFile())
{
sourceStorage.OpenFileForRead(sourceIoc).CopyTo(writeStream);
}
writeTransaction.CommitWrite();
}
}
public override void Run()
{
if (!_dontSave)
{
try
{
if (_db.CanWrite == false)
{
//this should only happen if there is a problem in the UI so that the user sees an edit interface.
Finish(false, "Cannot save changes. File is read-only!");
return;
}
string message = _app.GetResourceString(UiStringKey.saving_database);
if (ShowDatabaseIocInStatus)
{
message += " (" + _app.GetFileStorage(_db.Ioc).GetDisplayName(_db.Ioc) + ")";
}
StatusLogger.UpdateMessage(message);
IOConnectionInfo ioc = _db.Ioc;
IFileStorage fileStorage = _app.GetFileStorage(ioc);
if (_streamForOrigFile == null)
{
if ((!_app.GetBooleanPreference(PreferenceKey.CheckForFileChangesOnSave)) ||
(_db.KpDatabase.HashOfFileOnDisk == null)) //first time saving
{
PerformSaveWithoutCheck(fileStorage, ioc);
Finish(true);
return;
}
}
if (
(_streamForOrigFile != null) ||
fileStorage.CheckForFileChangeFast(ioc, _db.LastFileVersion) || //first try to use the fast change detection
(FileHashChanged(ioc, _db.KpDatabase.HashOfFileOnDisk) == FileHashChange.Changed) //if that fails, hash the file and compare:
)
{
//ask user...
_app.AskYesNoCancel(UiStringKey.TitleSyncQuestion, UiStringKey.MessageSyncQuestion,
UiStringKey.YesSynchronize,
UiStringKey.NoOverwrite,
//yes = sync
(sender, args) =>
{
Action runHandler = () =>
{
//note: when synced, the file might be downloaded once again from the server. Caching the data
//in the hashing function would solve this but increases complexity. I currently assume the files are
//small.
MergeIn(fileStorage, ioc);
PerformSaveWithoutCheck(fileStorage, ioc);
_db.UpdateGlobals();
Finish(true);
};
RunInWorkerThread(runHandler);
},
//no = overwrite
(sender, args) =>
{
RunInWorkerThread(() =>
{
PerformSaveWithoutCheck(fileStorage, ioc);
Finish(true);
});
},
//cancel
(sender, args) =>
{
RunInWorkerThread(() => Finish(false));
},
_ctx
);
}
else
{
PerformSaveWithoutCheck(fileStorage, ioc);
Finish(true);
}
}
catch (Exception e)
{
/* TODO KPDesktop:
* catch(Exception exSave)
* {
* MessageService.ShowSaveWarning(pd.IOConnectionInfo, exSave, true);
* bSuccess = false;
* }
*/
Kp2aLog.LogUnexpectedError(e);
Finish(false, e.Message);
return;
}
}
else
{
Finish(true);
}
}
public override void Run()
{
if (!_dontSave)
{
try
{
if (_db.CanWrite == false)
{
//this should only happen if there is a problem in the UI so that the user sees an edit interface.
Finish(false, "Cannot save changes. File is read-only!");
return;
}
string message = _app.GetResourceString(UiStringKey.saving_database);
if (ShowDatabaseIocInStatus)
{
message += " (" + _app.GetFileStorage(_db.Ioc).GetDisplayName(_db.Ioc) + ")";
}
StatusLogger.UpdateMessage(message);
IOConnectionInfo ioc = _db.Ioc;
IFileStorage fileStorage = _app.GetFileStorage(ioc);
if (_streamForOrigFile == null)
{
if ((!_app.GetBooleanPreference(PreferenceKey.CheckForFileChangesOnSave)) ||
(_db.KpDatabase.HashOfFileOnDisk == null)) //first time saving
{
PerformSaveWithoutCheck(fileStorage, ioc);
Finish(true);
return;
}
}
bool hasStreamForOrigFile = (_streamForOrigFile != null);
bool hasChangeFast = hasStreamForOrigFile ||
fileStorage.CheckForFileChangeFast(ioc, _db.LastFileVersion); //first try to use the fast change detection;
bool hasHashChanged = hasChangeFast ||
(FileHashChanged(ioc, _db.KpDatabase.HashOfFileOnDisk) ==
FileHashChange.Changed); //if that fails, hash the file and compare:
if (hasHashChanged)
{
Kp2aLog.Log("Conflict. " + hasStreamForOrigFile + " " + hasChangeFast + " " + hasHashChanged);
bool alwaysMerge = (PreferenceManager.GetDefaultSharedPreferences(Application.Context)
.GetBoolean("AlwaysMergeOnConflict", false));
if (alwaysMerge)
{
MergeAndFinish(fileStorage, ioc);
}
else
{
//ask user...
_app.AskYesNoCancel(UiStringKey.TitleSyncQuestion, UiStringKey.MessageSyncQuestion,
UiStringKey.YesSynchronize,
UiStringKey.NoOverwrite,
//yes = sync
(sender, args) =>
{
Action runHandler = () => { MergeAndFinish(fileStorage, ioc); };
RunInWorkerThread(runHandler);
},
//no = overwrite
(sender, args) =>
{
RunInWorkerThread(() =>
{
PerformSaveWithoutCheck(fileStorage, ioc);
Finish(true);
});
},
//cancel
(sender, args) =>
{
RunInWorkerThread(() => Finish(false));
},
_ctx
);
}
}
else
{
PerformSaveWithoutCheck(fileStorage, ioc);
Finish(true);
}
}
catch (Exception e)
{
/* TODO KPDesktop:
* catch(Exception exSave)
* {
* MessageService.ShowSaveWarning(pd.IOConnectionInfo, exSave, true);
* bSuccess = false;
* }
*/
Kp2aLog.LogUnexpectedError(e);
Finish(false, e.Message);
return;
}
}
else
{
Finish(true);
}
}
public override void Run()
{
StatusLogger.UpdateMessage(UiStringKey.exporting_database);
var pd = _app.CurrentDb.KpDatabase;
PwExportInfo pwInfo = new PwExportInfo(pd.RootGroup, pd, true);
try
{
var fileStorage = _app.GetFileStorage(_targetIoc);
if (fileStorage is IOfflineSwitchable)
{
((IOfflineSwitchable)fileStorage).IsOffline = false;
}
using (var writeTransaction = fileStorage.OpenWriteTransaction(_targetIoc, _app.GetBooleanPreference(PreferenceKey.UseFileTransactions)))
{
Stream sOut = writeTransaction.OpenFile();
_fileFormat.Export(pwInfo, sOut, new NullStatusLogger());
if (sOut != null)
{
sOut.Close();
}
writeTransaction.CommitWrite();
}
if (fileStorage is IOfflineSwitchable)
{
((IOfflineSwitchable)fileStorage).IsOffline = App.Kp2a.OfflineMode;
}
Finish(true);
}
catch (Exception ex)
{
Finish(false, ex.Message);
}
}
public override void Run()
{
try
{
IOConnectionInfo ioc = _app.GetDb().Ioc;
IFileStorage fileStorage = _app.GetFileStorage(ioc);
if (!(fileStorage is CachingFileStorage))
{
throw new Exception("Cannot sync a non-cached database!");
}
StatusLogger.UpdateMessage(UiStringKey.SynchronizingCachedDatabase);
CachingFileStorage cachingFileStorage = (CachingFileStorage)fileStorage;
//download file from remote location and calculate hash:
StatusLogger.UpdateSubMessage(_app.GetResourceString(UiStringKey.DownloadingRemoteFile));
string hash;
MemoryStream remoteData;
try
{
remoteData = cachingFileStorage.GetRemoteDataAndHash(ioc, out hash);
}
catch (FileNotFoundException)
{
StatusLogger.UpdateSubMessage(_app.GetResourceString(UiStringKey.RestoringRemoteFile));
cachingFileStorage.UpdateRemoteFile(ioc, _app.GetBooleanPreference(PreferenceKey.UseFileTransactions));
Finish(true, _app.GetResourceString(UiStringKey.SynchronizedDatabaseSuccessfully));
return;
}
//check if remote file was modified:
if (cachingFileStorage.GetBaseVersionHash(ioc) != hash)
{
//remote file is modified
if (cachingFileStorage.HasLocalChanges(ioc))
{
//conflict! need to merge
_saveDb = new SaveDb(_context, _app, new ActionOnFinish((success, result) =>
{
if (!success)
{
Finish(false, result);
}
else
{
Finish(true, _app.GetResourceString(UiStringKey.SynchronizedDatabaseSuccessfully));
}
_saveDb = null;
}), false, remoteData);
_saveDb.Run();
_app.GetDb().MarkAllGroupsAsDirty();
}
else
{
//only the remote file was modified -> reload database.
//note: it's best to lock the database and do a complete reload here (also better for UI consistency in case something goes wrong etc.)
_app.TriggerReload(_context);
Finish(true);
}
}
else
{
//remote file is unmodified
if (cachingFileStorage.HasLocalChanges(ioc))
{
//but we have local changes -> upload:
StatusLogger.UpdateSubMessage(_app.GetResourceString(UiStringKey.UploadingFile));
cachingFileStorage.UpdateRemoteFile(ioc, _app.GetBooleanPreference(PreferenceKey.UseFileTransactions));
StatusLogger.UpdateSubMessage("");
Finish(true, _app.GetResourceString(UiStringKey.SynchronizedDatabaseSuccessfully));
}
else
{
//files are in sync: just set the result
Finish(true, _app.GetResourceString(UiStringKey.FilesInSync));
}
}
}
catch (Exception e)
{
Finish(false, e.Message);
}
}
