Ejemplo n.º 1
0
        public DbcTable(Stream storage, bool storageOwner = true)
        {
            if (storage == null)
            {
                throw new ArgumentNullException("storage");
            }

            if (!storage.CanSeek || !storage.CanRead)
            {
                throw new ArgumentException("storage");
            }

            stream      = storage;
            streamOwner = storageOwner;

            stream.Seek(0, SeekOrigin.Begin);
            reader = new BinaryReader(storage, Encoding.UTF8, true);

            magic = reader.ReadInt32();

            if (magic == 0x43424457)
            {
                format       = DbcFileFormat.Dbc;
                headerLength = HEADER_LENGTH_DBC;
            }
            else if (magic == 0x32424457)
            {
                format       = DbcFileFormat.Db2;
                headerLength = HEADER_LENGTH_DB2;
            }
            else if (magic == 0x32484357)
            {
                format       = DbcFileFormat.AdbCache;
                headerLength = HEADER_LENGTH_DB2;
            }
            else
            {
                throw new InvalidDataException("Invalid header.");
            }

            count             = reader.ReadInt32();
            recordLength      = reader.ReadInt32();
            perRecord         = reader.ReadInt32();
            stringBlockLength = reader.ReadInt32();

            if (format != DbcFileFormat.Dbc)
            {
                hashTable             = reader.ReadInt32();
                build                 = reader.ReadInt32();
                _lastWrittenTimestamp = reader.ReadInt32();
                minID                 = reader.ReadInt32();
                maxID                 = reader.ReadInt32();
                locale                = reader.ReadInt32();
                unknown               = reader.ReadInt32();

                if (maxID != 0)
                {
                    lookupID = headerLength;

                    headerLength = headerLength + (maxID - minID + 1) * 6;
                }
            }
            else
            {
                hashTable             = 0;
                build                 = -1;
                _lastWrittenTimestamp = 0;
                minID                 = -1;
                maxID                 = -1;
                locale                = 0;
            }

            stringBlockOffset = perRecord * count + headerLength;
        }
Ejemplo n.º 2
0
        public DbcTable(Stream storage, bool ownsStorage = true)
        {
            if (storage == null)
                throw new ArgumentNullException("storage");
            if (!storage.CanSeek || !storage.CanRead)
                throw new ArgumentException("storage");

            _store = storage;
            _ownsStream = ownsStorage;

            _store.Seek(0, SeekOrigin.Begin);
            _reader = new BinaryReader(storage, Encoding.UTF8, true);
            int magic = _reader.ReadInt32();
            if (magic == 0x43424457)
            {
                _format = DbcFileFormat.Dbc;
                _headerLength = HEADER_LENGTH_DBC;
            }
            else if (magic == 0x32424457)
            {
                _format = DbcFileFormat.Db2;
                _headerLength = HEADER_LENGTH_DB2;
            }
            else if (magic == 0x32484357)
            {
                _format = DbcFileFormat.AdbCache;
                _headerLength = HEADER_LENGTH_DB2;
            }
            else
            {
                throw new InvalidDataException("Invalid header.");
            }
            _count = _reader.ReadInt32();
            _recordLength = _reader.ReadInt32();
            _perRecord = _reader.ReadInt32();
            _stringBlockLength = _reader.ReadInt32();

            if (_format != DbcFileFormat.Dbc)
            {
                _tableHash = _reader.ReadInt32();
                _build = _reader.ReadInt32();
                _lastWrittenTimestamp = _reader.ReadInt32();
                _minId = _reader.ReadInt32();
                _maxId = _reader.ReadInt32();
                _locale = _reader.ReadInt32();
                _reader.ReadInt32();

                if (_maxId != 0)
                {
                    _idLookup = _headerLength;
                    int numRows = _maxId - _minId + 1;
                    _headerLength = _headerLength + numRows * 6;
                }
            }
            else
            {
                _tableHash = 0;
                _build = -1;
                _lastWrittenTimestamp = 0;
                _minId = -1;
                _maxId = -1;
                _locale = 0;
            }

            _stringBlockOffset = _perRecord * _count + _headerLength;
        }
Ejemplo n.º 3
0
        public DbcTable(Stream storage, bool ownsStorage = true)
        {
            if (storage == null)
            {
                throw new ArgumentNullException("storage");
            }
            if (!storage.CanSeek || !storage.CanRead)
            {
                throw new ArgumentException("storage");
            }

            _store      = storage;
            _ownsStream = ownsStorage;

            _store.Seek(0, SeekOrigin.Begin);
            _reader = new BinaryReader(storage, Encoding.UTF8, true);
            int magic = _reader.ReadInt32();

            if (magic == 0x43424457)
            {
                _format       = DbcFileFormat.Dbc;
                _headerLength = HEADER_LENGTH_DBC;
            }
            else if (magic == 0x32424457)
            {
                _format       = DbcFileFormat.Db2;
                _headerLength = HEADER_LENGTH_DB2;
            }
            else if (magic == 0x32484357)
            {
                _format       = DbcFileFormat.AdbCache;
                _headerLength = HEADER_LENGTH_DB2;
            }
            else
            {
                throw new InvalidDataException("Invalid header.");
            }
            _count             = _reader.ReadInt32();
            _recordLength      = _reader.ReadInt32();
            _perRecord         = _reader.ReadInt32();
            _stringBlockLength = _reader.ReadInt32();

            if (_format != DbcFileFormat.Dbc)
            {
                _tableHash            = _reader.ReadInt32();
                _build                = _reader.ReadInt32();
                _lastWrittenTimestamp = _reader.ReadInt32();
                _minId                = _reader.ReadInt32();
                _maxId                = _reader.ReadInt32();
                _locale               = _reader.ReadInt32();
                _reader.ReadInt32();

                if (_maxId != 0)
                {
                    _idLookup = _headerLength;
                    int numRows = _maxId - _minId + 1;
                    _headerLength = _headerLength + numRows * 6;
                }
            }
            else
            {
                _tableHash            = 0;
                _build                = -1;
                _lastWrittenTimestamp = 0;
                _minId                = -1;
                _maxId                = -1;
                _locale               = 0;
            }

            _stringBlockOffset = _perRecord * _count + _headerLength;
        }