Writing Your Own RTF Converter

// -- FILE ------------------------------------------------------------------
// name       : ILogger.cs
// project    : System Framelet
// created    : Leon Poyyayil - 2005.05.03
// language   : c#
// environment: .NET 2.0
// copyright  : (c) 2004-2010 by Itenso GmbH, Switzerland
// --------------------------------------------------------------------------
using System;

namespace Itenso.Sys.Logging
{

	// ------------------------------------------------------------------------
	/// <summary>
	/// Public wrapper access to different logger implementations. All code in the
	/// framework should only use this interface. Instances can be gotten from the
	/// <see cref="Logger"/> class. This makes it easy to change the underlying
	/// logging facility without having to adapt all the using code (e.g. when
	/// switching from an own implementation to log4net or something the like).
	/// </summary>
	public interface ILogger
	{

		// ----------------------------------------------------------------------
		LoggerLevel Level { get; set; }

		// ----------------------------------------------------------------------
		bool IsDebugEnabled { get; }

		// ----------------------------------------------------------------------
		bool IsInfoEnabled { get; }

		// ----------------------------------------------------------------------
		bool IsWarnEnabled { get; }

		// ----------------------------------------------------------------------
		bool IsErrorEnabled { get; }

		// ----------------------------------------------------------------------
		bool IsFatalEnabled { get; }

		// ----------------------------------------------------------------------
		bool IsEnabledFor( LoggerLevel level );

		// ----------------------------------------------------------------------
		bool IsSupportedException( Exception exception );

		// ----------------------------------------------------------------------
		void Debug( object message );

		// ----------------------------------------------------------------------
		void Debug( object message, Exception exception );

		// ----------------------------------------------------------------------
		void DebugFormat( string format, params object[] args );

		// ----------------------------------------------------------------------
		void DebugFormat( IFormatProvider provider, string format, params object[] args );

		// ----------------------------------------------------------------------
		void Info( object message );

		// ----------------------------------------------------------------------
		void Info( object message, Exception exception );

		// ----------------------------------------------------------------------
		void InfoFormat( string format, params object[] args );

		// ----------------------------------------------------------------------
		void InfoFormat( IFormatProvider provider, string format, params object[] args );

		// ----------------------------------------------------------------------
		void Warn( object message );

		// ----------------------------------------------------------------------
		void Warn( object message, Exception exception );

		// ----------------------------------------------------------------------
		void WarnFormat( string format, params object[] args );

		// ----------------------------------------------------------------------
		void WarnFormat( IFormatProvider provider, string format, params object[] args );

		// ----------------------------------------------------------------------
		void Error( object message );

		// ----------------------------------------------------------------------
		void Error( object message, Exception exception );

		// ----------------------------------------------------------------------
		void ErrorFormat( string format, params object[] args );

		// ----------------------------------------------------------------------
		void ErrorFormat( IFormatProvider provider, string format, params object[] args );

		// ----------------------------------------------------------------------
		void Fatal( object message );

		// ----------------------------------------------------------------------
		void Fatal( object message, Exception exception );

		// ----------------------------------------------------------------------
		void FatalFormat( string format, params object[] args );

		// ----------------------------------------------------------------------
		void FatalFormat( IFormatProvider provider, string format, params object[] args );

		// ----------------------------------------------------------------------
		void Log( LoggerLevel level, object message );

		// ----------------------------------------------------------------------
		void Log( LoggerLevel level, object message, Exception exception );

		// ----------------------------------------------------------------------
		void LogFormat( LoggerLevel level, string format, params object[] args );

		// ----------------------------------------------------------------------
		void LogFormat( LoggerLevel level, IFormatProvider provider, string format, params object[] args );

		// ----------------------------------------------------------------------
		IDisposable PushContext( string context );

		// ----------------------------------------------------------------------
		int ContextDepth { get; }

		// ----------------------------------------------------------------------
		string Context { get; }

		// ----------------------------------------------------------------------
		void PopContext();

	} // interface ILogger

} // namespace Itenso.Sys.Logging
// -- EOF -------------------------------------------------------------------