#region License
/*
* Copyright 2002-2009 the original author or authors.
*
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#endregion
using System;
using FormatMessageCallbackSystem.ActionCommon.Logging.FormatMessageHandler;
namespace Common.Logging{
/// <summary>
/// A simple logging interface abstracting logging APIs.
/// </summary>
/// <remarks>
/// <para>
/// Implementations should defer calling a message's <see cref="object.ToString()"/> until the message really needs
/// to be logged to avoid performance penalties.
/// </para>
/// <para>
/// Each <see cref="ILog"/> log method offers to pass in a <see cref="FormatMessageCallback"/> instead of the actual message.
/// Using this style has the advantage to defer possibly expensive message argument evaluation and formatting (and formatting arguments!) until the message gets
/// actually logged. If the message is not logged at all (e.g. due to <see cref="LogLevel"/> settings),
/// you won't have to pay the peformance penalty of creating the message.
/// </para>
/// </remarks>
/// <example>
/// The example below demonstrates using callback style for creating the message, where the call to the
/// <see cref="Random.NextDouble"/> and the underlying <see cref="string.Format(string,object[])"/> only happens, if level <see cref="LogLevel.Debug"/> is enabled:
/// <code>
/// Log.Debug( m=>m("result is {0}", random.NextDouble()) );
/// Log.Debug(delegate(m) { m("result is {0}", random.NextDouble()); });
/// </code>
/// </example>
/// <seealso cref="FormatMessageCallback"/>
/// <author>Mark Pollack</author>
/// <author>Bruno Baia</author>
/// <author>Erich Eichinger</author>
public interface ILog
{
/// <summary>
/// Log a message object with the <see cref="LogLevel.Trace"/> level.
/// </summary>
/// <param name="message">The message object to log.</param>
void Trace(object message);
/// <summary>
/// Log a message object with the <see cref="LogLevel.Trace"/> level including
/// the stack trace of the <see cref="Exception"/> passed
/// as a parameter.
/// </summary>
/// <param name="message">The message object to log.</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Trace(object message, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Trace"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args">the list of format arguments</param>
void TraceFormat(string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Trace"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args">the list of format arguments</param>
void TraceFormat(string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Trace"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args"></param>
void TraceFormat(IFormatProvider formatProvider, string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Trace"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args"></param>
void TraceFormat(IFormatProvider formatProvider, string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Trace"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Trace(FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Trace"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Trace(FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Trace"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Trace(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Trace"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Trace(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message object with the <see cref="LogLevel.Debug"/> level.
/// </summary>
/// <param name="message">The message object to log.</param>
void Debug( object message );
/// <summary>
/// Log a message object with the <see cref="LogLevel.Debug"/> level including
/// the stack trace of the <see cref="Exception"/> passed
/// as a parameter.
/// </summary>
/// <param name="message">The message object to log.</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Debug( object message, Exception exception );
/// <summary>
/// Log a message with the <see cref="LogLevel.Debug"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args">the list of format arguments</param>
void DebugFormat(string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Debug"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args">the list of format arguments</param>
void DebugFormat(string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Debug"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args"></param>
void DebugFormat(IFormatProvider formatProvider, string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Debug"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args"></param>
void DebugFormat(IFormatProvider formatProvider, string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Debug"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Debug(FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Debug"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Debug(FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Debug"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Debug(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Debug"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack Debug.</param>
void Debug(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message object with the <see cref="LogLevel.Info"/> level.
/// </summary>
/// <param name="message">The message object to log.</param>
void Info(object message);
/// <summary>
/// Log a message object with the <see cref="LogLevel.Info"/> level including
/// the stack trace of the <see cref="Exception"/> passed
/// as a parameter.
/// </summary>
/// <param name="message">The message object to log.</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Info(object message, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Info"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args">the list of format arguments</param>
void InfoFormat(string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Info"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args">the list of format arguments</param>
void InfoFormat(string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Info"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args"></param>
void InfoFormat(IFormatProvider formatProvider, string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Info"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args"></param>
void InfoFormat(IFormatProvider formatProvider, string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Info"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Info(FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Info"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Info(FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Info"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Info(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Info"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack Info.</param>
void Info(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message object with the <see cref="LogLevel.Warn"/> level.
/// </summary>
/// <param name="message">The message object to log.</param>
void Warn(object message);
/// <summary>
/// Log a message object with the <see cref="LogLevel.Warn"/> level including
/// the stack trace of the <see cref="Exception"/> passed
/// as a parameter.
/// </summary>
/// <param name="message">The message object to log.</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Warn(object message, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Warn"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args">the list of format arguments</param>
void WarnFormat(string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Warn"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args">the list of format arguments</param>
void WarnFormat(string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Warn"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args"></param>
void WarnFormat(IFormatProvider formatProvider, string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Warn"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args"></param>
void WarnFormat(IFormatProvider formatProvider, string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Warn"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Warn(FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Warn"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Warn(FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Warn"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Warn(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Warn"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack Warn.</param>
void Warn(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message object with the <see cref="LogLevel.Error"/> level.
/// </summary>
/// <param name="message">The message object to log.</param>
void Error( object message );
/// <summary>
/// Log a message object with the <see cref="LogLevel.Error"/> level including
/// the stack trace of the <see cref="Exception"/> passed
/// as a parameter.
/// </summary>
/// <param name="message">The message object to log.</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Error( object message, Exception exception );
/// <summary>
/// Log a message with the <see cref="LogLevel.Error"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args">the list of format arguments</param>
void ErrorFormat(string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Error"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args">the list of format arguments</param>
void ErrorFormat(string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Error"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args"></param>
void ErrorFormat(IFormatProvider formatProvider, string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Error"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args"></param>
void ErrorFormat(IFormatProvider formatProvider, string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Error"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Error(FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Error"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Error(FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Error"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Error(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Error"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack Error.</param>
void Error(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message object with the <see cref="LogLevel.Fatal"/> level.
/// </summary>
/// <param name="message">The message object to log.</param>
void Fatal( object message );
/// <summary>
/// Log a message object with the <see cref="LogLevel.Fatal"/> level including
/// the stack trace of the <see cref="Exception"/> passed
/// as a parameter.
/// </summary>
/// <param name="message">The message object to log.</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Fatal( object message, Exception exception );
/// <summary>
/// Log a message with the <see cref="LogLevel.Fatal"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args">the list of format arguments</param>
void FatalFormat(string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Fatal"/> level.
/// </summary>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args">the list of format arguments</param>
void FatalFormat(string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Fatal"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="args"></param>
void FatalFormat(IFormatProvider formatProvider, string format, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Fatal"/> level.
/// </summary>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="format">The format of the message object to log.<see cref="string.Format(string,object[])"/> </param>
/// <param name="exception">The exception to log.</param>
/// <param name="args"></param>
void FatalFormat(IFormatProvider formatProvider, string format, Exception exception, params object[] args);
/// <summary>
/// Log a message with the <see cref="LogLevel.Fatal"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Fatal(FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Fatal"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack trace.</param>
void Fatal(FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Log a message with the <see cref="LogLevel.Fatal"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
void Fatal(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback);
/// <summary>
/// Log a message with the <see cref="LogLevel.Fatal"/> level using a callback to obtain the message
/// </summary>
/// <remarks>
/// Using this method avoids the cost of creating a message and evaluating message arguments
/// that probably won't be logged due to loglevel settings.
/// </remarks>
/// <param name="formatProvider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information.</param>
/// <param name="formatMessageCallback">A callback used by the logger to obtain the message if log level is matched</param>
/// <param name="exception">The exception to log, including its stack Fatal.</param>
void Fatal(IFormatProvider formatProvider, FormatMessageCallback formatMessageCallback, Exception exception);
/// <summary>
/// Checks if this logger is enabled for the <see cref="LogLevel.Trace"/> level.
/// </summary>
bool IsTraceEnabled
{
get;
}
/// <summary>
/// Checks if this logger is enabled for the <see cref="LogLevel.Debug"/> level.
/// </summary>
bool IsDebugEnabled
{
get;
}
/// <summary>
/// Checks if this logger is enabled for the <see cref="LogLevel.Error"/> level.
/// </summary>
bool IsErrorEnabled
{
get;
}
/// <summary>
/// Checks if this logger is enabled for the <see cref="LogLevel.Fatal"/> level.
/// </summary>
bool IsFatalEnabled
{
get;
}
/// <summary>
/// Checks if this logger is enabled for the <see cref="LogLevel.Info"/> level.
/// </summary>
bool IsInfoEnabled
{
get;
}
/// <summary>
/// Checks if this logger is enabled for the <see cref="LogLevel.Warn"/> level.
/// </summary>
bool IsWarnEnabled
{
get;
}
}
}
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