public Store(string path)
{
var families = new ColumnFamilies();
db = RocksDb.OpenReadOnly(Options.Default, Path.GetFullPath(path), families, false);
defaultFamily = db.GetDefaultColumnFamily();
}
public Store(string path)
{
var families = new ColumnFamilies();
try
{
foreach (var family in RocksDb.ListColumnFamilies(Options.Default, Path.GetFullPath(path)))
{
families.Add(new ColumnFamilies.Descriptor(family, new ColumnFamilyOptions()));
}
}
catch { }
db = RocksDb.Open(Options.Default, Path.GetFullPath(path), families);
ColumnFamilyHandle defaultFamily = db.GetDefaultColumnFamily();
byte[] value = db.Get(SYS_Version, defaultFamily, Options.ReadDefault);
if (value != null && Version.TryParse(Encoding.ASCII.GetString(value), out Version version) && version >= Version.Parse("3.0.0"))
{
return;
}
if (value != null)
{
// Clean all families only if the version are different
Parallel.For(0, byte.MaxValue + 1, (x) => db.DropColumnFamily(x.ToString()));
_families.Clear();
}
// Update version
db.Put(SYS_Version, Encoding.ASCII.GetBytes(Assembly.GetExecutingAssembly().GetName().Version.ToString()), defaultFamily, Options.WriteDefault);
}
public IStore GetStore(string?path)
{
if (path == null)
{
return(new RocksDbStore(db, db.GetDefaultColumnFamily(), readOnly, shared: true));
}
if (db.TryGetColumnFamily(path, out var columnFamily))
{
return(new RocksDbStore(db, columnFamily, readOnly, shared: true));
}
if (!readOnly)
{
columnFamily = db.CreateColumnFamily(defaultColumnFamilyOptions, path);
return(new RocksDbStore(db, columnFamily, readOnly, shared: true));
}
throw new InvalidOperationException("invalid store path");
}
static ColumnFamilyHandle GetColumnFamilyHandle(RocksDb db, string?columnFamilyName)
{
return(string.IsNullOrEmpty(columnFamilyName)
? db.GetDefaultColumnFamily() : db.GetColumnFamily(columnFamilyName));
}
