public bool Read()
{
bool output;
try
{
if (!InitializeReadFileStream())
{
return(false);
}
RaiseBeforeReadFileEvent(out bool cancelBeforeReadFile);
if (cancelBeforeReadFile)
{
NextFile();
return(Read());
}
while (true)
{
string sourceData = ReadSourceDataFromStream();
if (sourceData != null)
{
AddNewLineToSource(sourceData, true);
}
if (LogParserTechJournal.ItsEndOfEvent(_stream, sourceData) || sourceData == null)
{
_currentFileEventNumber += 1;
string preparedSourceData = _eventSource.ToString();
_eventSource.Clear();
RaiseBeforeRead(new BeforeReadEventArgs(preparedSourceData, _currentFileEventNumber));
if (sourceData == null && preparedSourceData.Length == 0)
{
NextFile();
output = Read();
break;
}
try
{
RowData eventData = ReadRowData(preparedSourceData);
_currentRow = eventData;
RaiseAfterRead(new AfterReadEventArgs(_currentRow, _currentFileEventNumber));
output = true;
break;
}
catch (Exception ex)
{
RaiseOnError(new OnErrorEventArgs(ex, preparedSourceData, false));
_currentRow = null;
output = true;
break;
}
}
}
}
catch (Exception ex)
{
RaiseOnError(new OnErrorEventArgs(ex, null, true));
_currentRow = null;
output = false;
}
return(output);
}
public bool Read()
{
bool output;
try
{
if (!InitializeReadFileStream())
{
return(false);
}
RaiseBeforeReadFileEvent(out bool cancelBeforeReadFile);
if (cancelBeforeReadFile)
{
NextFile();
return(Read());
}
bool newLine = true;
DateTime maxLogPeriod = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, _logTimeZoneInfo).AddMilliseconds((-1) * _readDelayMs);
_currentStreamPosition = _stream?.GetPosition() ?? 0;
while (true)
{
if (_firstReadForFile)
{
_sourceData = _stream.ReadLineWithoutNull();
_firstReadForFile = false;
}
if (_sourceData == null)
{
NextFile();
output = Read();
break;
}
AddNewLineToSource(_sourceData, newLine);
long currentStreamPositionBeforeGoAheadRead = _stream?.GetPosition() ?? 0;
if (LogParserTechJournal.ItsEndOfEvent(_stream, CurrentFile, out _sourceData))
{
_currentFileEventNumber += 1;
_currentStreamPosition = currentStreamPositionBeforeGoAheadRead;
string preparedSourceData = _eventSource.ToString();
_eventSource.Clear();
if (_sourceData == null)
{
_firstReadForFile = true;
}
RaiseBeforeRead(new BeforeReadEventArgs(preparedSourceData, _currentFileEventNumber));
try
{
EventData eventData = ReadRowData(preparedSourceData);
if (eventData.Period >= maxLogPeriod)
{
_currentRow = null;
output = false;
break;
}
else
{
_currentRow = eventData;
RaiseAfterRead(new AfterReadEventArgs(_currentRow, _currentFileEventNumber));
output = true;
break;
}
}
catch (Exception ex)
{
RaiseOnError(new OnErrorEventArgs(ex, preparedSourceData, false));
_currentRow = null;
output = true;
break;
}
}
newLine = false;
}
}
catch (FileNotFoundException)
{
_currentRow = null;
output = false;
}
catch (Exception ex)
{
RaiseOnError(new OnErrorEventArgs(ex, null, true));
_currentRow = null;
output = false;
}
return(output);
}
