public async Task AddFiles(IEnumerable <string> filePaths)
{
_log?.Write(LogEventCategory.Informational, $"Adding {filePaths.Count()} files to FITS database...");
OnAddStatusUpdated?.Invoke(FileDbAddStatus.ReadingHeaders, null, 0, filePaths.Count());
var fitsFiles = await ReadFitsFiles(filePaths);
await InsertOrUpdateFitsFiles(fitsFiles.Where(ff => ff != null));
}
private async Task InsertOrUpdateFitsFiles(IEnumerable <IFitsFileInfo> fitsFiles)
{
int handled = 0;
foreach (var ff in fitsFiles)
{
try
{
var dataChange = await PerformFitsTableChangesTransaction(ff);
if (dataChange == DataChange.Created)
{
_log?.Write(LogEventCategory.Informational,
$"Read and indexed {ff.HeaderKeys.Count} keywords from " +
$"a new FITS file {Path.GetFileName(ff.FilePath)}");
}
else if (dataChange == DataChange.Updated)
{
_log?.Write(LogEventCategory.Informational,
$"Read and indexed {ff.HeaderKeys.Count} keywords from " +
$"a changed FITS file {Path.GetFileName(ff.FilePath)}");
}
else
{
_log?.Write(LogEventCategory.Informational,
$"Read {Path.GetFileName(ff.FilePath)}, file was already indexed and unchanged");
}
}
catch (Exception e)
{
var err = "Reading of file / extraction of FITS header keywords failed";
_log?.Write(LogEventCategory.Error, err, e);
}
handled++;
EventUtils.IgnoreExceptions(() => OnAddStatusUpdated?.Invoke(FileDbAddStatus.InsertingAndUpdating, ff.FilePath, handled, fitsFiles.Count()));
}
EventUtils.IgnoreExceptions(() => OnAddStatusUpdated?.Invoke(FileDbAddStatus.TransactionCompleted, null, handled, fitsFiles.Count()));
}
