Using LibLog with Microsoft.Owin.Logging
namespace LigLogOwin
{
using System;
using System.Diagnostics;
using LibLogOwin.Logging;
using Microsoft.Owin.Logging;
using Owin;
public class Startup
{
public void Configuration(IAppBuilder app)
{
app.SetLoggerFactory(new LibLogLoggerFactory());
}
private class LibLogLoggerFactory : ILoggerFactory
{
public ILogger Create(string name)
{
return new LibLogLogger(LogProvider.GetLogger(name));
}
private class LibLogLogger : ILogger
{
private readonly ILog _logger;
public LibLogLogger(ILog logger)
{
_logger = logger;
}
public bool WriteCore(
TraceEventType eventType,
int eventId,
object state,
Exception exception,
Func<object, Exception, string> formatter)
{
return state == null
? _logger.Log(Map(eventType), null) // Equivalent to IsLogLevelXEnabled
//TODO What to do with eventId?
: _logger.Log(Map(eventType), () => formatter(state, exception), exception);
}
private LogLevel Map(TraceEventType eventType)
{
switch(eventType)
{
case TraceEventType.Critical:
return LogLevel.Fatal;
case TraceEventType.Error:
return System.LogLevel.Error;
case TraceEventType.Warning:
return LogLevel.Warn;
case TraceEventType.Information:
return LogLevel.Info;
case TraceEventType.Verbose:
return System.LogLevel.Trace;
case TraceEventType.Start:
return LogLevel.Info;
case TraceEventType.Stop:
return LogLevel.Info;
case TraceEventType.Suspend:
return LogLevel.Info;
case TraceEventType.Resume:
return LogLevel.Info;
case TraceEventType.Transfer:
return LogLevel.Info;
default:
throw new ArgumentOutOfRangeException("eventType");
}
}
}
}
}
}