public RestorePoint Create(string backupPath, List <FileInformation> files, List <RestorePoint> restorePoints,
IDateTimeProvider dateTimeProvider, IStorageAlgorithm storageAlgorithm, RestoreType restoreType)
{
if (restoreType == RestoreType.Increment)
{
RestorePoint lastFullRestorePoint = restorePoints.Last(x => x.RestoreType == RestoreType.Full);
List <RestorePoint> lastRestorePoints = restorePoints.AsEnumerable().Reverse()
.TakeWhile(x => x.RestoreType == RestoreType.Increment).ToList();
lastRestorePoints.Add(lastFullRestorePoint);
List <FileInformation> incrementedFiles = new List <FileInformation>();
foreach (var file in files)
{
List <FileInformation> fileUpdates = lastRestorePoints
.Select(x => x.GetFile(file.Path))
.Where(x => x != null)
.Cast <FileInformation>()
.ToList();
FileInformation diff = file.GetDiff(fileUpdates);
if (diff.Size > 0)
{
incrementedFiles.Add(diff);
}
}
files = incrementedFiles;
}
RestorePoint restorePoint = storageAlgorithm.Storage(backupPath, dateTimeProvider.GetCurrentTime(),
restoreType, files);
return(restorePoint);
}
public void CreateRestorePoint(RestoreType restoreType)
{
List <FileInformation> files = _watchedFilePaths.Select(x => _fileSystem.Read(x)).ToList();
RestorePoint restorePoint = _restorePointCreator.Create(_backupPath, files, _restorePoints,
_dateTimeProvider, _storageAlgorithm, restoreType);
_restorePoints.Add(restorePoint);
WriteRestorePoint(restorePoint);
}
private void RemoveRestorePoint(RestorePoint restorePoint)
{
switch (restorePoint.StorageType)
{
case StorageType.Separate:
foreach (var file in restorePoint.RestoreFiles)
{
_fileSystem.Remove(file.Path);
}
break;
case StorageType.Shared:
_fileSystem.Remove(restorePoint.Path);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
private void WriteRestorePoint(RestorePoint restorePoint)
{
switch (restorePoint.StorageType)
{
case StorageType.Separate:
foreach (RestoreFileInformation file in restorePoint.RestoreFiles)
{
_fileSystem.Write(file);
}
break;
case StorageType.Shared:
_fileSystem.Write(new ArchiveFileInformation(restorePoint.Path, restorePoint.RestoreFiles.Cast <FileInformation>().ToList()));
break;
default:
throw new ArgumentOutOfRangeException();
}
}