public static IMd Locate(MdLocator locator, int level = 0)
{
var xorString = GetString(locator);
using (var db = GetRocksDb())
{
var metaKey = $"{xorString}_0"; // entry 0
var column = db.GetColumnFamily(COLUMN_FAMILY);
var value = db.Get(metaKey, cf: column);
if (value == null) // if not found, create with level 0
{
var data = new LocalMdData
{
Locator = locator,
LocatorString = xorString,
Level = level
};
value = data.Json();
db.Put(metaKey, new StoredValue(level).Json(), cf: column); // store level 0
return(new LocalMd(data));
}
else
{
var existing = new LocalMdData
{
Locator = locator,
LocatorString = xorString,
Level = value.Parse <StoredValue>().Payload.Parse <int>()
};
int.TryParse(db.Get($"{xorString}_Count", cf: column), out existing.Count);
return(new LocalMd(existing));
}
}
}
private LocalMd(LocalMdData data)
{
_data = data;
Count = data.Count;
}
