public LineCountProgress CopyTo(LineCountProgress copy)
{
copy.FileEvent = FileEvent;
copy.Count = Count;
copy.Status = Status;
copy.Note = Note;
return(copy);
}
void CountAndReport(FileEvent fileEvent, IProgress <LineCountProgress> progress)
{
LineCountProgress report = Count(fileEvent);
if (progress != null)
{
progress.Report(report);
}
}
public LineCountProgress Count(FileEvent fileEvent)
{
const double TimeoutSeconds = 5.0;
const int RetryInterval = 900; // milliseconds
var report = new LineCountProgress(fileEvent);
DateTime startTime = DateTime.Now;
TimeSpan elapsed = new TimeSpan(ticks: 0);
bool keepTrying = true;
while (keepTrying)
{
try
{
int count = FileEntry.NotCounted;
string path = Path.Combine(FolderPath ?? "", fileEvent.FileEntry.Name);
using (var f = new StreamReader(path, detectEncodingFromByteOrderMarks: true))
{
string line;
do
{
count++;
line = f.ReadLine();
}while (line != null);
}
report.Count = count;
report.Status = LineCountStatus.Success;
keepTrying = false;
}
catch (IOException ex)
{
if (ex is DirectoryNotFoundException ||
ex is DriveNotFoundException ||
ex is FileNotFoundException ||
ex is PathTooLongException)
{
report.Status = LineCountStatus.FileNotFound;
report.Note = ex.Message;
keepTrying = false;
}
else
{
// locked file raises IOException base class
elapsed = DateTime.Now - startTime;
if (elapsed.TotalSeconds >= TimeoutSeconds)
{
report.Status = LineCountStatus.TimedOut;
report.Note = "Timed out after " + elapsed;
keepTrying = false;
}
else
{
Thread.Sleep(RetryInterval);
}
}
}
catch (Exception ex)
{
report.Status = LineCountStatus.Exception;
report.Note = ex.Message;
keepTrying = false;
}
}
return(report);
}
void CountAndSave(FileEvent fileEvent, List <LineCountProgress> results)
{
LineCountProgress report = Count(fileEvent);
results.Add(report);
}