public void Add(LogEntry logEntry)
{
try
{
EnsureDirectoryExists();
StandardAnalyzer analyzer = new StandardAnalyzer(LUCENEVERSION);
using (IndexWriter writer = new IndexWriter(FSDirectory.Open(new DirectoryInfo(IndexPath)), analyzer, false, IndexWriter.MaxFieldLength.UNLIMITED))
{
Document document = CreateDocument(logEntry);
writer.AddDocument(document);
writer.Optimize();
}
}
catch (Exception ex)
{
throw new SearchException(ex, "An error occured while adding entry '{0}' to the search index", logEntry.DateTime);
}
}
public ActionResult Search(string applicationName, string q)
{
Environment currentEnvironment = GetSelectedEnvironment();
ViewBag.EnvironmentName = currentEnvironment.Name;
ViewBag.ApplicationName = applicationName;
ViewBag.SearchQuery = q;
IEnumerable<LogEntry> results = new LogEntry[0];
if (_configuration.IsLuceneEnabled)
{
var searchRepository = new SearchRepository(_configuration);
string query = searchRepository.CreateLuceneSearchSyntax(applicationName, currentEnvironment.Name, q);
results = searchRepository.Search(query);
}
else
{
// Use MongoDB's slower search.
results = _repository.Search(currentEnvironment.Name, applicationName, q);
}
return View(results);
}
private LogEntry ParseLogEntry(string environment, string server, string appName, string contents)
{
MatchCollection matches = _entryRegex.Matches(contents);
LogEntry entry = null;
if (matches.Count > 0)
{
try
{
Match match = matches[0];
entry = new LogEntry();
entry.Id = Guid.NewGuid();
entry.DateTime = DateTime.Parse(match.Groups["date"].Value);
entry.Source = match.Groups["source"].Value;
entry.Message = contents.Substring((match.Groups["source"].Index + 1) + match.Groups["source"].Length);
entry.Level = "Error";
entry.Server = server;
entry.ApplicationName = appName;
entry.Environment = environment;
FillExceptionType(entry);
}
catch (Exception)
{
// Ignore for now
}
}
return entry;
}
private void FillExceptionType(LogEntry entry)
{
if (string.IsNullOrEmpty(entry.Message))
return;
string message = entry.Message;
int start = message.LastIndexOf("Exception Type: ");
if (start > -1)
{
int end = message.IndexOf(Environment.NewLine, start);
if (end > -1)
{
int typeStart = start + "Exception Type: ".Length;
string exceptionType = message.Substring(typeStart, end - typeStart);
entry.ExceptionType = exceptionType;
int messageStart = message.IndexOf("Message: ", start);
if (messageStart > -1)
{
int messageEnd = message.IndexOf(Environment.NewLine, messageStart);
if (messageEnd > -1)
{
messageStart = messageStart + "Message: ".Length;
string exceptionMessage = message.Substring(messageStart, messageEnd - messageStart);
entry.ExceptionMessage = exceptionMessage;
}
}
}
}
}
private Document CreateDocument(LogEntry logEntry)
{
Document document = new Document();
document.Add(new Field("id", logEntry.Id.ToString(), Field.Store.YES, Field.Index.NO));
document.Add(new Field("environment", logEntry.Environment, Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("server", logEntry.Server, Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("application", logEntry.ApplicationName, Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("date", logEntry.DateTime.ToShortDateString(), Field.Store.YES, Field.Index.NO));
document.Add(new Field("exceptionMessage", logEntry.ExceptionMessage??"", Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("exceptionType", logEntry.ExceptionType ?? "", Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("message", logEntry.Message ?? "", Field.Store.NO, Field.Index.ANALYZED));
document.Add(new Field("truncatedMessage", logEntry.TruncatedMessage, Field.Store.YES, Field.Index.NO));
return document;
}
public virtual void Update(LogEntry logEntry)
{
EnsureDirectoryExists();
Delete(logEntry);
Add(logEntry);
}
public int Delete(LogEntry logEntry)
{
try
{
int count = 0;
using (IndexReader reader = IndexReader.Open(FSDirectory.Open(new DirectoryInfo(IndexPath)), false))
{
count += reader.DeleteDocuments(new Term("id", logEntry.Id.ToString()));
}
return count;
}
catch (Exception ex)
{
throw new SearchException(ex, "An error occured while deleting entry '{0}' from the search index", logEntry.DateTime);
}
}
public void Save(LogEntry entry)
{
_collection.InsertOneAsync(entry);
}
public void Save(LogEntry entry)
{
LogEntries.Add(entry);
}
