public override FilterDecision Decide()

in src/log4net/Filter/StringMatchFilter.cs [132:179]

33 lines of code
10 McCabe index (conditional complexity)


  public override FilterDecision Decide(LoggingEvent loggingEvent) 
  {
    string? msg = loggingEvent.EnsureNotNull().RenderedMessage;

    // Check if we have been setup to filter
    if (msg is null || (StringToMatch is null && m_regexToMatch is null))
    {
      // We cannot filter so allow the filter chain
      // to continue processing
      return FilterDecision.Neutral;
    }
  
    // Firstly check if we are matching using a regex
    if (m_regexToMatch is not null)
    {
      // Check the regex
      if (m_regexToMatch.Match(msg).Success == false)
      {
        // No match, continue processing
        return FilterDecision.Neutral;
      } 

      // we've got a match
      if (AcceptOnMatch) 
      {
        return FilterDecision.Accept;
      } 
      return FilterDecision.Deny;
    }
    else if (StringToMatch is not null)
    {
      // Check substring match
      if (msg.IndexOf(StringToMatch) == -1) 
      {
        // No match, continue processing
        return FilterDecision.Neutral;
      } 

      // we've got a match
      if (AcceptOnMatch) 
      {
        return FilterDecision.Accept;
      } 
      return FilterDecision.Deny;
    }

    return FilterDecision.Neutral;
  }