protected virtual void ConfigureLogging(IApplicationBuilder app)
{
var hostingEnvironment = app.ApplicationServices.GetRequiredService <IHostingEnvironment>();
var applicationEnvironment = app.ApplicationServices.GetRequiredService <IApplicationEnvironment>();
var loggerFactory = app.ApplicationServices.GetRequiredService <LoggerFactory>();
var nlogConfigFileGenerated = false;
var nlogConfigFilename = "NLog.config";
var nlogConfigSearchPaths = new string[] {
".",
applicationEnvironment.ApplicationBasePath
};
var nlogConfigFilePath = PathUtils.FindPath(nlogConfigSearchPaths, nlogConfigFilename);
// If no NLog.config file is found, generate one to use.
// The stub is created so that admins can edit and configure
// logging even in cases where a file was not provided.
if (nlogConfigFilePath == null)
{
nlogConfigFileGenerated = true;
nlogConfigFilePath = Path.Combine(applicationEnvironment.ApplicationBasePath, "NLog.config");
File.WriteAllText(nlogConfigFilePath, @"<?xml version=""1.0"" encoding=""utf-8"" ?>
<nlog
xmlns=""http://www.nlog-project.org/schemas/NLog.xsd""
xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance""
autoReload=""true""
>
<targets>
<target
name=""Console""
xsi:type=""ColoredConsole""
layout=""[${pad:padding=7:inner=${level:uppercase=true}}] ${logger}: ${message}""/>
</targets>
<rules>
<logger name=""*"" minlevel=""Info"" writeTo=""console"" />
</rules>
</nlog>
");
}
var nlogFactory = new NLog.LogFactory(new XmlLoggingConfiguration(nlogConfigFilePath)
{
AutoReload = true
});
loggerFactory.AddNLog(nlogFactory);
ApplicationLog = loggerFactory.CreateLogger("Application");
ApplicationLog.LogInformation("Log file opened at {0}.", DateTime.Now);
if (nlogConfigFileGenerated)
{
ApplicationLog.LogWarning("NLog configuration file could not be found. A new one has been generated.");
}
ApplicationLog.LogInformation("Logging configuration file: {0}", nlogConfigFilePath);
AccessLog = loggerFactory.CreateLogger("Access");
AccessLog.LogInformation("Log file opened at {0}.", DateTime.Now);
HtmlAccessLog = loggerFactory.CreateLogger("HtmlAccess");
HtmlAccessLog.LogInformation("Log file opened at {0}.", DateTime.Now);
}