Log4Net - Different Log Files, Different Log Levels.

Just writing to help other developer like me,

Problem: I wanted to log different LOG Levels in different files using LOG4Net.

my app.config was like this.

log4net

appender name="LogFileAppender" type="log4net.Appender.FileAppender"

param name="File" value="..\..\Logs\ApplicationLog.log"

param name="AppendToFile" value="false"

layout type="log4net.Layout.PatternLayout"

param name="Header" value=""

param name="Footer" value=""

param name="ConversionPattern" value="%d [%t] %-5p %m%n"

layout

appender

appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender"

layout type="log4net.Layout.PatternLayout"

param name="Header" value="[Header]\r\n"

param name="Footer" value="[Footer]\r\n"

param name="ConversionPattern" value="%d [%t] %-5p %m%n"

layout

appender

root

level value="ALL"

appender-ref ref="ConsoleAppender"

appender-ref ref="LogFileAppender"

root

log4net

--

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I added different Appenders for file saving and Logger tag to define my new loggers

(Check TEXT in Green)

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!--

log4net

appender name="LogFileAppender" type="log4net.Appender.FileAppender"

param name="File" value="..\..\Logs\ApplicationLog.log"

param name="AppendToFile" value="false"

layout type="log4net.Layout.PatternLayout"

param name="Header" value=""

param name="Footer" value=""

param name="ConversionPattern" value="%d [%t] %-5p %m%n"

layout

appender

appender name="InputLogFileAppender" type="log4net.Appender.FileAppender"

param name="File" value="..\..\Logs\InputData.log"

param name="AppendToFile" value="false"

layout type="log4net.Layout.PatternLayout"

param name="Header" value=""

param name="Footer" value=""

param name="ConversionPattern" value="%m%n"

layout

appender

appender name="OutputLogFileAppender" type="log4net.Appender.FileAppender"

param name="File" value="..\..\Logs\OutputData.log"

param name="AppendToFile" value="false"

layout type="log4net.Layout.PatternLayout"

param name="Header" value=""

param name="Footer" value=""

param name="ConversionPattern" value="%m%n"

layout

appender

appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender"

layout type="log4net.Layout.PatternLayout"

param name="Header" value="[Header]\r\n"

param name="Footer" value="[Footer]\r\n"

param name="ConversionPattern" value="%d [%t] %-5p %m%n"

layout

appender

root

level value="ALL"

appender-ref ref="ConsoleAppender"

root

logger name="LogFileAppender"

level value="DEBUG"

appender-ref ref="LogFileAppender"

logger

logger name="ErrorFileAppender"

level value="ERROR"

appender-ref ref="LogFileAppender"

logger

logger name="InputLogger"

level value="INFO"

appender-ref ref="InputLogFileAppender"

logger

logger name="OutputLogger"

level value="INFO"

appender-ref ref="OutputLogFileAppender"

logger

log4net

--

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My LOG4Net Level ENUM was look like this before;

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public enum ELogLevel

{

DEBUG = 1,

ERROR,

FATAL,

INFO,

WARN,

}

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I added my new LOG4Net Levels (Check Text in green )

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public enum ELogLevel

{

DEBUG = 1,

ERROR,

FATAL,

INFO,

WARN,

INPUT,

OUTPUT

}

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My LOG4Net Class was look like this before;

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public static class CLogger

{

#region Members

private static readonly ILog logger = LogManager.GetLogger(typeof(CLogger));

#endregion

#region Constructors

static CLogger()

{

XmlConfigurator.Configure();

}

#endregion

#region Methods

public static void WriteLog(ELogLevel logLevel, String log)

{

if (logLevel.Equals(ELogLevel.DEBUG))

{

logger.Debug(log);

}

else if (logLevel.Equals(ELogLevel.ERROR))

{

logger.Error(log);

}

else if (logLevel.Equals(ELogLevel.FATAL))

{

logger.Fatal(log);

}

else if (logLevel.Equals(ELogLevel.DEBUG))

{

logger.Info(log);

}

else if (logLevel.Equals(ELogLevel.WARN))

{

logger.Warn(log);

}

else if (logLevel.Equals(ELogLevel.INFO ))

{

logger.Info (log);

}

}

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I wrote code for my new LOGGER in config (check text in green)

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public static class CLogger

{

#region Members

private static readonly ILog logger = LogManager.GetLogger("LogFileAppender");

private static readonly ILog errorlogger = LogManager.GetLogger("ErrorFileAppender");

private static readonly ILog inputDataLog = LogManager.GetLogger("InputLogger");

private static readonly ILog outputDataLog = LogManager.GetLogger("OutputLogger");

#endregion

#region Constructors

static CLogger()

{

XmlConfigurator.Configure();

}

#endregion

#region Methods

public static void WriteLog(ELogLevel logLevel, String log)

{

if (logLevel.Equals(ELogLevel.DEBUG))

{

logger.Debug(log);

}

else if (logLevel.Equals(ELogLevel.ERROR))

{

errorlogger.Error(log);

}

else if (logLevel.Equals(ELogLevel.FATAL))

{

logger.Fatal(log);

}

else if (logLevel.Equals(ELogLevel.DEBUG))

{

logger.Info(log);

}

else if (logLevel.Equals(ELogLevel.WARN))

{

logger.Warn(log);

}

else if (logLevel.Equals(ELogLevel.INFO ))

{

logger.Info (log);

}

else if (logLevel.Equals(ELogLevel.INPUT ))

{

inputDataLog.Info(log);

}

else if (logLevel.Equals(ELogLevel.OUTPUT ))

{

outputDataLog.Info(log);

}

}

After all this, now i can save my Input and Out level messages to different files and Debug and Error in one file.

Thanks