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using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Tango.Logging;
namespace Tango.Logging
{
public class ApplicationLogFileParser : ILogFileParser<LogItemBase>
{
public List<LogFile> GetLogFiles()
{
List<LogFile> logFiles = new List<LogFile>();
FileLogger logger = LogManager.Default.RegisteredLoggers.FirstOrDefault(x => x.GetType() == typeof(FileLogger)) as FileLogger;
String logFile = logger != null ? logger.LogFile : null;
foreach (var file in Directory.GetFiles(FileLogger.DefaultLogsFolder, "*.log").Where(x => Path.GetFileName(x).StartsWith(logger.Tag) && x != logger.LogFile))
{
try
{
String dateString = Path.GetFileNameWithoutExtension(file).Replace($"{logger.Tag}-", "");
DateTime date = DateTime.ParseExact(dateString, "dd-MM-yyyy_HH-mm-ss", CultureInfo.InvariantCulture);
logFiles.Add(new LogFile() { DateTime = date, File = file });
}
catch (Exception ex)
{
LogManager.Default.Log(ex, $"Could not load application log file {Path.GetFileName(file)}");
}
}
return logFiles;
}
public List<LogItemBase> Parse(LogFile logFile)
{
List<LogItemBase> logItems = new List<LogItemBase>();
String text = File.ReadAllText(logFile.File);
var logs = Regex.Split(text, @"(\[\d{2}:\d{2}:\d{2}.\d{2}\])");
for (int i = 1; i < logs.Length; i += 2)
{
try
{
DateTime date = DateTime.ParseExact(logs[i].Replace("[", "").Replace("]", ""), "HH:mm:ss.ff", CultureInfo.InvariantCulture);
String rest = logs[i + 1];
var entries = Regex.Split(rest, @"\[(.*?)\]");
MessageLogItem item = new MessageLogItem();
item.TimeStamp = new DateTime(logFile.DateTime.Year, logFile.DateTime.Month, logFile.DateTime.Day, date.Hour, date.Minute, date.Second, date.Millisecond);
item.Category = (LogCategory)Enum.Parse(typeof(LogCategory), entries[1]);
item.CallerFile = entries[3];
item.CallerMethodName = entries[5];
item.CallerLineNumber = int.Parse(entries[7]);
item.Message = new String(entries[8].Skip(2).ToArray());
logItems.Add(item);
}
catch (Exception ex)
{
LogManager.Default.Log(ex, "Could not parse log line: " + logs[i]);
}
}
return logItems;
}
}
}
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