Ejemplo n.º 1
0
        public void Load(BinaryReader reader, Action <int, string> values, int count)
        {
            if (reader.ReadByte() != VERSION)
            {
                throw new Exception("Invalid StringIndexerPersist version.");
            }

            PersistMode mode = (PersistMode)reader.ReadByte();

            switch (mode)
            {
            case PersistMode.Raw:
            {
                new Raw().Load(reader, values, count);
            }
            break;

            case PersistMode.Dictionary:
            {
                string[] map = new string[reader.ReadInt32()];
                for (int i = 0; i < map.Length; i++)
                {
                    map[i] = reader.ReadString();
                }

                new Int32IndexerPersist().Load(reader, (idx, value) => { values(idx, value == NULL_ID ? null : map[value]); }, count);
            }
            break;

            default:
                throw new NotSupportedException(mode.ToString());
            }
        }
Ejemplo n.º 2
0
 bool IDataPersistence.Persist(IPersistence persistence)
 {
     persistence.UpsertField(Constants.IDataPesistence_InitializeMode, InitializeMode.ToString());
     persistence.UpsertField(Constants.IDataPesistence_PersistMode, PersistMode.ToString());
     persistence.UpsertFieldArray(Constants.IDataPesistence_DataConnections, DataConnections.ToArray());
     return(true);
 }
Ejemplo n.º 3
0
        public void Store(BinaryWriter writer, Func <int, string> values, int count)
        {
            writer.Write(VERSION);

            int MAP_CAPACITY             = (int)((PERCENT / 100) * count);
            Dictionary <string, int> map = new Dictionary <string, int>(/*MAP_CAPACITY*/); //optimistic variant

            int ID = 0;

            int[]       indexes = new int[count];
            PersistMode mode    = PersistMode.Dictionary;

            for (int i = 0; i < count; i++)
            {
                var value = values(i);
                if (value == null)
                {
                    indexes[i] = NULL_ID;
                    continue;
                }

                int id;
                if (map.TryGetValue(value, out id))
                {
                    indexes[i] = id;
                    continue;
                }

                if (map.Count == MAP_CAPACITY)
                {
                    mode = PersistMode.Raw;
                    break;
                }

                map.Add(value, ID);
                indexes[i] = ID;
                ID++;
            }

            writer.Write((byte)mode);

            switch (mode)
            {
            case PersistMode.Raw:
            {
                new Raw().Store(writer, values, count);
            }
            break;

            case PersistMode.Dictionary:
            {
                writer.Write(map.Count);
                foreach (var kv in map.OrderBy(x => x.Value))
                {
                    writer.Write(kv.Key);
                }

                new Int32IndexerPersist().Store(writer, (idx) => { return(indexes[idx]); }, count);
            }
            break;

            default:
                throw new NotSupportedException(mode.ToString());
            }
        }