aspnetcore/src/Microsoft.Net.Http.Server/LogHelper.cs

115 lines
3.2 KiB
C#

// Copyright (c) Microsoft Open Technologies, Inc.
// All Rights Reserved
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
// WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF
// TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR
// NON-INFRINGEMENT.
// See the Apache 2 License for the specific language governing
// permissions and limitations under the License.
//------------------------------------------------------------------------------
// <copyright file="HttpListener.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System;
using System.Diagnostics;
using Microsoft.Framework.Logging;
namespace Microsoft.Net.Http.Server
{
internal static class LogHelper
{
internal static ILogger CreateLogger(ILoggerFactory factory, Type type)
{
if (factory == null)
{
return new NullLogger();
}
return factory.CreateLogger(type.FullName);
}
internal static void LogInfo(ILogger logger, string data)
{
if (logger == null)
{
Debug.WriteLine(data);
}
else
{
logger.LogInformation(data);
}
}
internal static void LogVerbose(ILogger logger, string data)
{
if (logger == null)
{
Debug.WriteLine(data);
}
else
{
logger.LogVerbose(data);
}
}
internal static void LogException(ILogger logger, string location, Exception exception)
{
if (logger == null)
{
Debug.WriteLine(exception);
}
else
{
logger.LogError(location, exception);
}
}
internal static void LogError(ILogger logger, string location, string message)
{
if (logger == null)
{
Debug.WriteLine(message);
}
else
{
logger.LogError(location + "; " + message);
}
}
private class NullLogger : ILogger
{
public IDisposable BeginScopeImpl(object state)
{
return new NullDispose();
}
public bool IsEnabled(LogLevel logLevel)
{
return false;
}
public void Log(LogLevel logLevel, int eventId, object state, Exception exception, Func<object, Exception, string> formatter)
{
}
private class NullDispose : IDisposable
{
public void Dispose()
{
}
}
}
}
}