public bool RestoreBackup(string path, DirectoryInfo destination, BackgroundWorker worker)
{
StringBuilder summary = new StringBuilder();
FileInfo tempFile = Decompress(path, worker);
if (tempFile == null)
{
return false;
}
int itemCount;
header = new byte[8];
try
{
using (FileStream reader = new FileStream(tempFile.FullName, FileMode.Open, FileAccess.Read))
{
reader.Read(header, 0, 8);
itemCount = BitConverter.ToInt32(header, 0);
manifest = new byte[BitConverter.ToInt32(header, 4)];
reader.Read(manifest, 0, manifest.Length);
for (int i = 0; i < itemCount; i++)
{
BackupFile f = new BackupFile();
summary.AppendLine(f.restore(reader, destination));
worker.ReportProgress((int)(((double)i / (double)itemCount) * 100));
}
reader.Close();
summary.AppendLine();
summary.AppendLine("Number of Files: " + itemCount);
summary.AppendFormat("Size of all restored Files: {0} KB", (tempFile.Length / 1024));
}
tempFile.Delete();
}
catch (Exception ex)
{
Logger.Log("Error while restoring complete Backup. Message: " + ex.Message, Logger.Level.ERROR);
return false;
}
RestoreController ctrl = RestoreController.getInstance();
ctrl.Summary = summary.ToString();
return true;
}
private void BuildByteFiles(List<BackupFile> byteFiles, List<FileInfo> toRemove)
{
foreach (FileInfo file in FilesToBackup)
{
BackupFile f = new BackupFile();
if (f.BuildFile(file))
{
byteFiles.Add(f);
}
else
{
toRemove.Add(file);
}
}
foreach (FileInfo file in toRemove)
{
FilesToBackup.Remove(file);
}
}
internal bool RestoreSelectedFiles(FileInfo BackupFile, DirectoryInfo RestoreDestination, Dictionary<FileInfo, long> SelectedFiles, BackgroundWorker worker)
{
//Create Dictorary which holds the offset for every File
Dictionary<FileInfo, long> index = createIndex(BackupFile.FullName);
Dictionary<string, long> offsetIndex = new Dictionary<string, long>();
StringBuilder summary = new StringBuilder();
long offset = 0;
foreach (KeyValuePair<FileInfo, long> item in index)
{
offsetIndex.Add(item.Key.Name, offset);
offset += item.Value;
}
FileInfo tempFile = Decompress(BackupFile.FullName, worker);
if (tempFile == null)
{
return false;
}
header = new byte[8];
try
{
using (FileStream reader = new FileStream(tempFile.FullName, FileMode.Open, FileAccess.Read))
{
//Read Header and Manifest
reader.Read(header, 0, 8);
manifest = new byte[BitConverter.ToInt32(header, 4)];
reader.Read(manifest, 0, manifest.Length);
//Read and Restore each selected File
int it = 0;
foreach (KeyValuePair<FileInfo, long> file in SelectedFiles)
{
long pos = offsetIndex[file.Key.Name];
reader.Seek((header.Length + manifest.Length + pos), SeekOrigin.Begin);
BackupFile f = new BackupFile();
f.restore(reader, RestoreDestination);
summary.AppendLine(file.Key.FullName);
worker.ReportProgress((int)(100 * ((double)it / (double)SelectedFiles.Count)));
it++;
}
reader.Close();
summary.AppendLine();
summary.AppendFormat("Number of restored Files: {0}", SelectedFiles.Count);
}
tempFile.Delete();
RestoreController ctrl = RestoreController.getInstance();
ctrl.Summary = summary.ToString();
}
catch (Exception ex)
{
Logger.Log("Error while restoring selected Files. Message: " + ex.Message, Logger.Level.ERROR);
return false;
}
return true;
}