/// <summary>
/// Starts LiteDB database using a connection string for filesystem database
/// </summary>
public LiteDatabase(string connectionString)
{
var conn = new ConnectionString(connectionString);
var version = conn.GetValue <ushort>("version", 0);
var encrypted = !StringExtensions.IsNullOrWhiteSpace(conn.GetValue <string>("password", null));
_engine = new LazyLoad <DbEngine>(
() => new DbEngine(encrypted ? new EncryptedDiskService(conn, _log) : new FileDiskService(conn, _log), _log),
() => this.InitializeMapper(),
() => this.UpdateDbVersion(version));
}
public FileDiskService(ConnectionString conn, Logger log)
{
_filename = conn.GetValue("filename", "");
var journalEnabled = conn.GetValue("journal", true);
_timeout = conn.GetValue("timeout", new TimeSpan(0, 1, 0));
_readonly = conn.GetValue("readonly", false);
_initialSize = conn.GetFileSize("initial size", 0);
_limitSize = conn.GetFileSize("limit size", 0);
var level = conn.GetValue <byte?>("log", null);
// simple validations
if (_filename.IsNullOrWhiteSpace())
{
throw new ArgumentNullException("filename");
}
if (_initialSize > 0 && _initialSize < BasePage.GetSizeOfPages(10))
{
throw new ArgumentException("initial size too low");
}
if (_limitSize > 0 && _limitSize < BasePage.GetSizeOfPages(10))
{
throw new ArgumentException("limit size too low");
}
if (_initialSize > 0 && _limitSize > 0 && _initialSize > _limitSize)
{
throw new ArgumentException("limit size less than initial size");
}
// setup log + log-level
_log = log;
if (level.HasValue)
{
_log.Level = level.Value;
}
_journalEnabled = _readonly ? false : journalEnabled; // readonly? no journal
_journalFilename = Path.Combine(Path.GetDirectoryName(_filename),
Path.GetFileNameWithoutExtension(_filename) + "-journal" + Path.GetExtension(_filename));
_tempFilename = Path.Combine(Path.GetDirectoryName(_filename),
Path.GetFileNameWithoutExtension(_filename) + "-temp" + Path.GetExtension(_filename));
}
public EncryptedDiskService(ConnectionString conn, Logger log)
: base(conn, log)
{
// initialize AES with passoword
var password = conn.GetValue <string>("password", null);
// hash password to store in header to check
_password = SimpleAES.HashSHA1(password);
_crypto = new SimpleAES(password);
}
public EncryptedDiskService(ConnectionString conn, Logger log)
: base(conn, log)
{
// initialize AES with passoword
var password = conn.GetValue <string>("password", null);
// hash password to store in header to check if password is correct
_crypto = LitePlatform.Platform.GetEncryption(password);
_password = _crypto.HashSHA1(password);
}
/// <summary>
/// Starts LiteDB database using a connection string for filesystem database
/// </summary>
public LiteDatabase(string connectionString, BsonMapper mapper = null)
{
LitePlatform.ThrowIfNotInitialized();
var conn = new ConnectionString(connectionString);
_mapper = mapper ?? BsonMapper.Global;
var encrypted = !StringExtensions.IsNullOrWhiteSpace(conn.GetValue <string>("password", null));
_engine = new LazyLoad <DbEngine>(() => new DbEngine(encrypted ? new EncryptedDiskService(conn, _log) : new FileDiskService(conn, _log), _log));
}