NLog.Config.LoggingConfiguration.FindTargetByName C# (CSharp) Method

        public Target FindTargetByName(string name)
        {
            Target value;

            if (!this.targets.TryGetValue(name, out value))
            {
                return null;
            }

            return value;
        }

        public LoggingConfiguration(IProgram program, IOperatingSystem os, IVSServices vsservice)
        {
            NLog.Config.LoggingConfiguration conf;
            string assemblyFolder = program.ExecutingAssemblyDirectory;

            try
            {
                conf = new XmlLoggingConfiguration(Path.Combine(assemblyFolder, "NLog.config"), true);
            }
            catch (Exception ex)
            {
                vsservice.ActivityLogError(string.Format(CultureInfo.InvariantCulture, "Error loading nlog.config. {0}", ex));
                conf = new NLog.Config.LoggingConfiguration();
            }

            var fileTarget = conf.FindTargetByName("file") as FileTarget;

            if (fileTarget == null)
            {
                fileTarget = new FileTarget();
                conf.AddTarget(Path.GetRandomFileName(), fileTarget);
                conf.LoggingRules.Add(new LoggingRule("*", LogLevel.Info, fileTarget));
            }
            fileTarget.FileName = Path.Combine(os.Environment.GetLocalGitHubApplicationDataPath(), "extension.log");
            fileTarget.Layout   = layout;

            try
            {
                LogManager.Configuration = conf;
            }
            catch (Exception ex)
            {
                vsservice.ActivityLogError(string.Format(CultureInfo.InvariantCulture, "Error configuring the log. {0}", ex));
            }
        }