public IEnumerable <DecodeStatistics> ProcessAllFiles()
{
if (string.IsNullOrWhiteSpace(_config.InputDirectory) ||
!Directory.Exists(_config.InputDirectory))
{
throw new Exception("Invalid input directory");
}
var startTime = DateTime.Now.Ticks;
var fileList = Directory.GetFiles(_config.InputDirectory)
.Where(file => _config.AcceptedFileExtensions.Any(ext => file.ToLower().EndsWith(ext)))
.ToList();
// start processing
var currentState = 0;
var errors = new List <string> {
"One or more exceptions occured. "
};
var errorsTemp = new List <string>();
var generalConfig = new BarcodeConfig()
{
PossibleFormats = _config.PossibleFormats,
TryMultipleBarcodeTypes = _config.TryMultipleBarcodeTypes,
};
var allResults = new List <DecodeStatistics>();
var _accessLock = new ReaderWriterLockSlim();
while (true)
{
var files = fileList.Skip(currentState).Take(_config.NumberOfThreads);
if (!files.Any())
{
break;
}
var tasks = new List <Task>();
foreach (var file in files)
{
var taskHere = Task.Run(() =>
{
try
{
var barcodeConfig = generalConfig.Clone() as BarcodeConfig;
barcodeConfig.FilePath = file;
var options = Options.Create(barcodeConfig);
var decoder = new BarcodeDecoder(options, _bitmapReader);
decoder.StartDecoding();
var result = decoder.GetDecodeResult();
_accessLock.EnterWriteLock();
allResults.Add(result);
_accessLock.ExitWriteLock();
}
catch (Exception ex)
{
throw new Exception("Error on file '" + file + "': " + ex.Message);
}
});
tasks.Add(taskHere);
}
try
{
Task.WaitAll(tasks.ToArray());
}
catch (AggregateException ae)
{
if (ae.InnerExceptions != null)
{
errorsTemp.AddRange(ae.InnerExceptions.Select(x => x.Message));
}
}
finally
{
currentState += files.Count();
}
}
if (errorsTemp.Count > 0)
{
errors.AddRange(errorsTemp);
}
_accessLock.Dispose();
return(allResults);
}
