public void CompactStorageHF()
{
lock (_lock)
{
try
{
_log.Debug("Compacting storage file ...");
if (Directory.Exists(_Path + "temp"))
{
Directory.Delete(_Path + "temp", true);
}
KeyStoreHF newfile = new KeyStoreHF(_Path + "temp");
string[] keys = _keys.GetKeys().Cast <string>().ToArray();
_log.Debug("Number of keys : " + keys.Length);
foreach (var k in keys)
{
newfile.SetObjectHF(k, GetObjectHF(k));
}
newfile.Shutdown();
_log.Debug("Compact done.");
// shutdown and move files and restart here
if (Directory.Exists(_Path + "old"))
{
Directory.Delete(_Path + "old", true);
}
Directory.CreateDirectory(_Path + "old");
_datastore.Shutdown();
_keys.Shutdown();
_log.Debug("Moving files...");
foreach (var f in Directory.GetFiles(_Path, "*.*"))
{
File.Move(f, _Path + "old" + _S + Path.GetFileName(f));
}
foreach (var f in Directory.GetFiles(_Path + "temp", "*.*"))
{
File.Move(f, _Path + Path.GetFileName(f));
}
Directory.Delete(_Path + "temp", true);
//Directory.Delete(_Path + "old", true); // FEATURE : delete or keep?
_log.Debug("Re-opening storage file");
_datastore = new StorageFileHF(_Path + "data.mghf", Global.HighFrequencyKVDiskBlockSize);
_keys = new MGIndex <string>(_Path, "keys.idx", 255, /*Global.PageItemCount,*/ false);
_BlockSize = _datastore.GetBlockSize();
}
catch (Exception ex)
{
_log.Error(ex);
}
}
}