public static List <ILogEntry> LoadFromXml(string fileName)
{
var xml = new XmlDocument();
var nsmgr = new XmlNamespaceManager(xml.NameTable);
nsmgr.AddNamespace("x", "http://schemas.microsoft.com/win/2004/08/events/event");
xml.Load(fileName);
var result = new List <ILogEntry>();
foreach (XmlElement item in xml.SelectNodes("/Events/x:Event", nsmgr))
{
var entry = new LoadedLogEntry();
switch (item.SelectSingleNode("x:System/x:Level", nsmgr).InnerText)
{
default: throw new NotSupportedException();
case "0": entry.EntryType = EventLogEntryType.Information; break;
case "2": entry.EntryType = EventLogEntryType.Error; break;
case "3": entry.EntryType = EventLogEntryType.Warning; break;
case "4": entry.EntryType = EventLogEntryType.Information; break;
}
var timeSource = item.SelectSingleNode("x:System/x:TimeCreated/@SystemTime", nsmgr).InnerText;
var datetime = XmlConvert.ToDateTime(timeSource, XmlDateTimeSerializationMode.Unspecified);
entry.TimeGenerated = datetime;
entry.TimeWritten = datetime;
entry.Category = item.SelectSingleNode("x:System/x:Channel", nsmgr).InnerText;
entry.MachineName = item.SelectSingleNode("x:System/x:Computer", nsmgr).InnerText;
var data = new StringBuilder();
foreach (XmlElement dataElement in item.SelectNodes("x:EventData/x:Data", nsmgr))
{
data.Append(dataElement.InnerText).Append(Environment.NewLine);
}
entry.Message = data.ToString().Trim();
result.Add(entry);
}
return(result);
}
static void Run(Configuration config)
{
var entries = new List <ILogEntry>();
if (config.SourceIsFile)
{
if (config.SourceType == SourceType.EvtxFile)
{
entries = LoadedLogEntry.LoadFromEvtx(config.FileName);
}
else if (config.SourceType == SourceType.XmlFile)
{
entries = LoadedLogEntry.LoadFromXml(config.FileName);
}
else
{
throw new NotSupportedException();
}
}
else
{
var logs = config.SourceType == SourceType.LocalComputer ? EventLog.GetEventLogs() : EventLog.GetEventLogs(config.ComputerName);
var snLog = logs.FirstOrDefault(l => l.Log == config.LogName);
if (snLog == null)
{
Console.WriteLine("EventLog '{0}' was not found.", config.LogName);
return;
}
foreach (var item in snLog.Entries)
{
entries.Add(new WrappedLogEntry((EventLogEntry)item));
}
}
Console.WriteLine("Source: {0}", config.ComputerName ?? "<local>");
Console.WriteLine(" Log name = \t\t {0}", config.LogName);
Console.WriteLine(" Number of events = \t {0}", entries.Count.ToString());
Console.WriteLine("-----------------------------------------------------------------");
var firstTime = entries.First().TimeGenerated;
var lastTime = DateTime.MinValue;
var detailedEntries = new List <DetailedLogEntry>();
var entryCount = 0;
var errorCount = 0;
var warningCount = 0;
foreach (var entry in entries)
{
entryCount++;
lastTime = entry.TimeGenerated;
if (entry.EntryType == EventLogEntryType.Error ||
entry.EntryType == EventLogEntryType.Warning ||
entry.EntryType == EventLogEntryType.Information)
{
if (entry.EntryType == EventLogEntryType.Error)
{
errorCount++;
}
if (entry.EntryType == EventLogEntryType.Warning)
{
warningCount++;
}
detailedEntries.Add(DetailedLogEntry.Create(entry));
}
}
if (lastTime < firstTime)
{
var d = lastTime;
lastTime = firstTime;
firstTime = d;
}
var grouped = new Dictionary <int, List <DetailedLogEntry> >();
foreach (var entry in detailedEntries)
{
var key = entry.GetKey();
if (!grouped.TryGetValue(key, out var list))
{
list = new List <DetailedLogEntry>();
grouped.Add(key, list);
}
list.Add(entry);
}
var ordered = grouped.Values
.OrderBy(i => i.First().EntryType)
.ThenByDescending(i => i.Count)
.ThenByDescending(i => i.First().Message)
.ToArray();
using (var writer = new StreamWriter(config.ErrorsFileName))
{
Console.WriteLine("Writing aggregated errors to {0}", config.ErrorsFileName);
writer.WriteLine("Source: {0}", config.SourceIsFile ? config.FileName : config.ComputerName);
writer.WriteLine("Log: {0}", config.SourceIsFile ? "" : config.LogName);
writer.WriteLine("First event: {0:yyyy-MM-dd HH:mm:ss.fffff}", firstTime);
writer.WriteLine("Last event : {0:yyyy-MM-dd HH:mm:ss.fffff}", lastTime);
writer.WriteLine("Event count: {0}", entryCount);
writer.WriteLine("Error count: {0}", errorCount);
writer.WriteLine("Warning count: {0}", warningCount);
writer.WriteLine("Group count: {0}", grouped.Count);
writer.WriteLine("==========================================================================");
writer.WriteLine(" Error message summary:");
writer.WriteLine("Count DiffMsg DiffStack Type Message");
writer.WriteLine("----- ------- --------- ----------- -------");
// 3 3 3 Error Invalid manifest: missing "ReleaseDate" element.
// 35 1 1 Information ContentTypeManager.Reset called.
foreach (var list in ordered)
{
var first = list[0];
var differentMessageCount = list.Select(i => i.StackTrace).Distinct().Count();
var differentStackTraceCount = list.Select(i => GetStackLines(i.StackTrace)).Distinct().Count();
writer.WriteLine("{0,5}{1,8}{2,10}{3,12} {4}", list.Count, differentMessageCount, differentStackTraceCount, first.EntryType, first.Name);
}
writer.WriteLine();
writer.WriteLine("##########################################################################");
writer.WriteLine("## Group details ##");
writer.WriteLine("##########################################################################");
writer.WriteLine();
foreach (var list in ordered)
{
var first = list[0];
if (first.EntryType != EventLogEntryType.Error)
{
continue;
}
writer.WriteLine("Name: {0}", first.Name);
writer.WriteLine("Type: {0}", first.EntryType);
writer.WriteLine("Count: {0}", list.Count);
var subGroups = new Dictionary <string, Dictionary <string, int> >(); // Dictionary<stacktrace, Dictionary<message, count>>
foreach (var item in list)
{
var messageLines = GetMessageLines(item.StackTrace) ?? item.Message;
var stackLines = GetStackLines(item.StackTrace) ?? string.Empty;
if (!subGroups.TryGetValue(stackLines, out var messages))
{
messages = new Dictionary <string, int>();
subGroups.Add(stackLines, messages);
}
if (!messages.ContainsKey(messageLines))
{
messages.Add(messageLines, 1);
}
else
{
messages[messageLines]++;
}
}
foreach (var entry in subGroups)
{
writer.WriteLine(
"----------------------------------------------------------------------------------------------------------------------------------------------------");
foreach (var subEntry in entry.Value)
{
writer.WriteLine("Count: {0}: {1}", subEntry.Value, subEntry.Key);
}
writer.WriteLine();
writer.WriteLine("Stack:");
writer.WriteLine(entry.Key); //stacktrace
}
writer.WriteLine();
writer.WriteLine();
writer.WriteLine("====================================================================================================================================================");
}
}
using (var writer = new StreamWriter(config.EventsFileName))
{
Console.WriteLine("Writing all events to {0}", config.EventsFileName);
writer.WriteLine("First event: {0:yyyy-MM-dd HH:mm:ss.fffff}", firstTime);
writer.WriteLine("Last event : {0:yyyy-MM-dd HH:mm:ss.fffff}", lastTime);
writer.WriteLine("Entry count: {0}", entryCount);
writer.WriteLine("##########################################################################");
foreach (var entry in entries.OrderBy(e => e.TimeGenerated).ThenBy(e => e.Message))
{
WriteEntry(entry, writer);
writer.WriteLine("##########################################################################");
}
}
}
