/// <summary>
/// Read the database with the given mode
/// </summary>
/// <param name="mode">Mode the database will be opened in</param>
public void Read(ConnectionMode mode)
{
this.mode = mode;
// Make sure the database status and connection mode are compatible
if (ValidateDatabaseMode() != true)
{
throw new TimeTagException("Connection mode is incompatible with a read only file");
}
if (this.dao == null)
{
this.dao = GetDaoFactory().CreateTimeSeriesDatabase(this.FilePath);
}
// Reset the existing database contents
Reset();
try
{
// Open a connection to the database
this.dao.Connect(mode);
}
catch (IOException e)
{
throw new TimeTagException("Database is locked", e);
}
// Read everything in from the database
TimeSeriesDatabaseDto dto = this.dao.Read();
// Build the database from the DTO
FixupFromDto(dto);
}
/// <summary>
/// Close the database connection opened by either Read or Create
/// </summary>
public void Close()
{
this.mode = ConnectionMode.Disconnected;
if (this.dao != null)
{
this.dao.Close();
this.dao = null;
}
}
/// <summary>
/// Permanently delete the database from the disk
/// </summary>
public void Delete()
{
if (this.dao != null)
{
if (this.dao.IsConnected())
{
this.dao.Close();
this.dao = null;
}
}
File.Delete(this.filePath);
}
private void CreateDatabase(TimeSeriesDatabaseDto dto)
{
this.dao = GetDaoFactory().CreateTimeSeriesDatabase(this.FilePath);
try
{
this.dao.Create(dto);
foreach (ArchiveTemplate archiveTemplate in this.archiveTemplates)
{
archiveTemplate.Create(this);
}
foreach (DataSource dataSource in this.dataSources)
{
dataSource.Create();
}
}
catch (IOException e)
{
throw new TimeTagException(e.Message, e);
}
}
/// <summary>
/// Creates an archive template DAO capable of interacting with a binary file
/// </summary>
/// <param name="databaseDao">Database in which the data source exists</param>
/// <returns>Binary file archive template DAO</returns>
public IArchiveTemplateDao CreateArchiveTemplate(ITimeSeriesDatabaseDao databaseDao)
{
return(new BinaryFileArchiveTemplateDao((BinaryFileTimeSeriesDatabaseDao)databaseDao));
}
/// <summary>
/// Creates a data source DAO capable of interacting with a binary file
/// </summary>
/// <param name="databaseDao">Database in which the data source exists</param>
/// <returns>Binary file data source DAO</returns>
public IDataSourceDao CreateDataSource(ITimeSeriesDatabaseDao databaseDao)
{
return(new BinaryFileDataSourceDao((BinaryFileTimeSeriesDatabaseDao)databaseDao));
}
