public LogEntry ParseLine(string line, LogSource logSource)
{
int currentIndex = 0;
var logDateTime = ParseLogTime(line, currentIndex, ref currentIndex);
if (logDateTime == null)
{
return(null);
}
var logLevel = ParseLogLevel(line, currentIndex, ref currentIndex);
if (logLevel == null)
{
return(null);
}
var threadInfo = TryParseThreadInfo(line, currentIndex, ref currentIndex);
var tags = ParseTags(line, currentIndex, ref currentIndex);
var logEntry = new LogEntry(logSource, logDateTime.Value, logLevel.Value, tags, threadInfo);
var firstNonSpaceIndex = line.FirstNotOf(new[] { ' ' }, currentIndex);
var contentAfterMetadate = firstNonSpaceIndex == -1? string.Empty : line.Substring(firstNonSpaceIndex);
var metadataContent = line.Substring(0, currentIndex);
logEntry.AddContent(metadataContent, contentAfterMetadate);
return(logEntry);
}
private LogEntry ParseLineWithMissingLevelTag(string line, LogSource logFile)
{
string dateEndDelimiter = " ";
if (line.Length < 15)
{
return(null);
}
int firstDelimiter = line.IndexOf(dateEndDelimiter, 15, StringComparison.InvariantCulture);
if (firstDelimiter == -1)
{
return(null);
}
string date = line.Substring(0, firstDelimiter);
if (!DateTime.TryParse(date, out var entryTime))
{
return(null);
}
string content = line.Substring(firstDelimiter + dateEndDelimiter.Length);
var tags = ParseTags(content, out var lastTagIndex);
LogEntry logFileEntry = new LogEntry(logFile, entryTime, LogLevel.Unknown, tags);
if (lastTagIndex != -1)
{
var contentBeforeTags = line.Substring(0, firstDelimiter + dateEndDelimiter.Length + lastTagIndex);
string contentWithoutTag = content.Substring(lastTagIndex);
logFileEntry.AddContent(contentBeforeTags, contentWithoutTag);
}
else
{
logFileEntry.AddContent(string.Empty, string.Empty);
}
return(logFileEntry);
}
private LogEntry ParseCorrectLine(string line, LogSource logFile)
{
var steveLine = _newFormatLineParser.ParseLine(line, logFile);
if (steveLine != null)
{
return(steveLine);
}
int firstDelimiter = line.IndexOf(Delimiter, StringComparison.InvariantCulture);
if (firstDelimiter == -1)
{
return(null);
}
string dateAndType = line.Substring(0, firstDelimiter);
int indexOfType = dateAndType.IndexOf('[');
if (indexOfType == -1)
{
return(null);
}
int endIndexOfType = dateAndType.IndexOf(']');
if (endIndexOfType == -1)
{
return(null);
}
string date = dateAndType.Substring(0, indexOfType);
DateTime entryTime;
if (!DateTime.TryParse(date, out entryTime))
{
return(null);
}
string typeString = dateAndType.Substring(indexOfType + 1, endIndexOfType - indexOfType - 1);
if (!Enum.TryParse <LogLevel>(typeString, true, out var logLevel))
{
return(null);
}
var indexToSplitContentAndTags = firstDelimiter + Delimiter.Length;
string content = line.Substring(indexToSplitContentAndTags);
var tags = ParseTags(content, out var lastTagIndex);
LogEntry logFileEntry = new LogEntry(logFile, entryTime, logLevel, tags);
if (lastTagIndex != -1)
{
var contentBeforeTags = line.Substring(0, indexToSplitContentAndTags + lastTagIndex);
string contentWithoutTag = content.Substring(lastTagIndex);
logFileEntry.AddContent(contentBeforeTags, contentWithoutTag);
}
else
{
logFileEntry.AddContent(string.Empty, string.Empty);
}
return(logFileEntry);
}
