public InstanceInfo(String ConnectionString, IsolationLevel IsolationLevel, int NumPartition)
{
var Fragments = ConnectionString.Split(';');
foreach (var Fragment in Fragments)
{
var Pairs = Fragment.Split('=');
if (Pairs.Length >= 2)
{
if (Pairs[0].Equals("File", StringComparison.OrdinalIgnoreCase))
{
this.FilePath = FileNameHandling.GetAbsolutePath(Pairs[1], System.Environment.CurrentDirectory);
}
else if (Pairs[0].Equals("BackupDir", StringComparison.OrdinalIgnoreCase))
{
this.BackupDir = FileNameHandling.GetAbsolutePath(Pairs[1], System.Environment.CurrentDirectory);
}
else if (Pairs[0].Equals("MaxBackupCount", StringComparison.OrdinalIgnoreCase))
{
this.MaxBackupCount = int.Parse(Pairs[1]);
}
else if (Pairs[0].Equals("BackupInterval", StringComparison.OrdinalIgnoreCase))
{
this.BackupInterval = int.Parse(Pairs[1]);
}
}
}
if (this.FilePath == "")
{
throw new InvalidOperationException("InvalidConnectionString: {0}".Formats(ConnectionString));
}
Data = new KrustallosData(NumPartition);
sbs = Niveum.ObjectSchema.BinarySerializerWithString.Create();
bs = KrustallosSerializer.Create();
using (var da = new KrustallosDataAccess(Instance, Data, IsolationLevel, (ITransactionLock)(null)))
{
Schema = da.Load(sbs, bs, FilePath);
}
}
public void SaveAll()
{
lock (SaveLockee)
{
var InstancesSnapshot = new List <Lazy <InstanceInfo> >();
lock (Instances)
{
InstancesSnapshot = Instances.Values.ToList();
}
foreach (var p in InstancesSnapshot)
{
var i = p.Value;
DateTime Time;
Version Version;
using (var da = new KrustallosDataAccess(i.Instance, i.Data, IsolationLevel.Snapshot, (ITransactionLock)(null)))
{
Version = da.GetReaderVersion();
Time = DateTime.UtcNow;
var Dir = FileNameHandling.GetFileDirectory(i.FilePath);
if (!Directory.Exists(Dir))
{
Directory.CreateDirectory(Dir);
}
using (var s = new ReliableFileWriteStream(i.FilePath))
{
da.Save(i.sbs, i.bs, s, i.Schema);
}
}
if (i.BackupDir != "")
{
if (!Directory.Exists(i.BackupDir))
{
Directory.CreateDirectory(i.BackupDir);
}
var FileName = FileNameHandling.GetFileName(i.FilePath);
var FilePath = FileNameHandling.GetPath(i.BackupDir, FileNameHandling.GetMainFileName(FileName) + Time.ToString("yyyyMMddHHmmss", System.Globalization.CultureInfo.InvariantCulture) + "-" + Version.ToString() + "." + FileNameHandling.GetExtendedFileName(FileName));
if (!File.Exists(FilePath))
{
File.Copy(i.FilePath, FilePath + ".new", true);
File.Move(FilePath + ".new", FilePath);
}
if (i.MaxBackupCount.OnSome)
{
var MaxBackupCount = i.MaxBackupCount.Value;
var FilesToDelete = new List <String>();
var FilePaths = new SortedSet <String>(StringComparer.OrdinalIgnoreCase);
foreach (var f in Directory.EnumerateFiles(i.BackupDir, "*", SearchOption.TopDirectoryOnly))
{
FilePaths.Add(f);
while (FilePaths.Count > MaxBackupCount)
{
var First = FilePaths.First();
FilePaths.Remove(First);
FilesToDelete.Add(First);
}
}
foreach (var f in FilesToDelete)
{
if (File.Exists(f))
{
try
{
File.Delete(f);
}
catch
{
}
}
}
}
}
}
}
}
