+1 vote
by (160 points)

Hi I was wondering how I would go about logging to file and console at the same time?

Thanks very much

Applies to: Rebex FTP/SSL

1 Answer

+1 vote
by (70.4k points)
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Best answer

The simplest solution is to write new ILogWriter which logs into specified underlying loggers. The source code is here:

public class MultiLogWriter : ILogWriter
{
    ILogWriter[] _loggers;

    public MultiLogWriter(params ILogWriter[] loggers)
    {
        if (loggers == null)
            throw new ArgumentNullException("loggers");
        _loggers = loggers;
    }

    public LogLevel Level
    {
        get
        {
            // return the most informative level
            LogLevel level = LogLevel.Off;
            foreach (var logger in _loggers)
            {
                // smaller level means more informative
                if (logger.Level < level)
                    level = logger.Level;
            }
            return level;
        }
        set
        {
            foreach (var logger in _loggers)
            {
                logger.Level = value;
            }
        }
    }

    public void Write(LogLevel level, Type objectType, int objectId, string area, string message, byte[] buffer, int offset, int length)
    {
        foreach (var logger in _loggers)
        {
            logger.Write(level, objectType, objectId, area, message, buffer, offset, length);
        }
    }

    public void Write(LogLevel level, Type objectType, int objectId, string area, string message)
    {
        foreach (var logger in _loggers)
        {
            logger.Write(level, objectType, objectId, area, message);
        }
    }
}

You can use it like this:

client.LogWriter = new MultiLogWriter(
    new ConsoleLogWriter(LogLevel.Debug), 
    new FileLogWriter("path", LogLevel.Debug));
by (160 points)
Thanks for a super detailed answer I really appreciate it! :) VOTED!
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