Thanks! Your appender saves my work, which I had to do...
___________________________________________________
Karel Kral, vyvojar
ANETE, s.r.o.
Prostredi: VB.NET, VS2005, XP Pro/P4 3GHz, 2GB RAM
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On 13.12.2006 10:38, Geert Verbakel wrote:
> We had the same requirement and created our own derived appender.
> It has some limitations (restriction on the date format), but seems to
> be working fine for the rest.
>
> Please give your comments if you think something could be ameliorated...
>
> Regards,
> Geert
>
>
>
> #region imports
>
>
>
> using System;
>
> using System.IO;
>
> using log4net.Core;
>
>
>
> #endregion
>
>
>
> namespace Utils.Logging
>
> {
>
> #region summary & change history
>
>
>
> /// <summary>
>
> /// Updated RollingFileAppender that removes log files that are
> older than a defined number of days.
>
> /// </summary>
>
> /// <remarks>
>
> /// Only works with date pattern that starts with yy or .yy
>
> /// </remarks>
>
>
>
> #endregion
>
>
>
> public class RollingFileAppender : log4net.Appender.RollingFileAppender
>
> {
>
> #region private fields
>
>
>
> private DateTime lastDeleteTime = DateTime.MinValue;
>
> private bool doCheck = false;
>
> string fileName = null;
>
>
>
> #endregion
>
>
>
> #region constructor
>
>
>
> /// <summary>
>
> /// Initializes a new instance of the <see
> cref="RollingFileAppender"/> class.
>
> /// </summary>
>
> public RollingFileAppender()
>
> {
>
> }
>
>
>
> #endregion
>
>
>
> #region methods
>
>
>
> /// <summary>
>
> /// Activates the options.
>
> /// </summary>
>
> public override void ActivateOptions()
>
> {
>
> base.ActivateOptions ();
>
>
>
> fileName = null;
>
> if (DatePattern.StartsWith("yy"))
>
> {
>
> fileName = File +
> DateTime.Now.ToString("yyyy").Substring(0, 1);
>
> }
>
> else if (DatePattern.StartsWith(@"\.yy"))
>
> {
>
> fileName = File +
> DateTime.Now.ToString(".yyyy").Substring(0, 2);
>
> }
>
>
>
> doCheck = fileName != null
>
> && MaxSizeRollBackups > 0
>
> && (RollingStyle == RollingMode.Date
>
> || RollingStyle == RollingMode.Composite);
>
> }
>
>
>
>
>
> /// <summary>
>
> /// Handles append time behaviour for CompositeRollingAppender.
> This checks
>
> /// if a roll over either by date (checked first) or time
> (checked second)
>
> /// is need and then appends to the file last.
>
> /// </summary>
>
> /// <param name="loggingEvent"></param>
>
> override protected void Append(LoggingEvent loggingEvent)
>
> {
>
> base.Append(loggingEvent);
>
>
>
> DeleteTime();
>
> }
>
>
>
> /// <summary>
>
> /// Deletes the rolling time files older than a defined number
> of days.
>
> /// </summary>
>
> private void DeleteTime()
>
> {
>
> if (doCheck &&
>
> DateTime.Now.Subtract(lastDeleteTime).TotalHours >= 1)
>
> {
>
> lastDeleteTime = DateTime.Now;
>
>
>
> try
>
> {
>
> string[] files =
> Directory.GetFiles(Path.GetDirectoryName(File));
>
> foreach (string file in files)
>
> {
>
> if (file.StartsWith(fileName))
>
> {
>
> FileInfo info = new FileInfo(file);
>
> if
> (DateTime.Now.Subtract(info.LastWriteTime).TotalDays > MaxSizeRollBackups)
>
> {
>
> DeleteFile(file);
>
> }
>
> }
>
> }
>
> }
>
> catch (Exception ex)
>
> {
>
> ErrorHandler.Error("Exception while deleting the
> rolling time files older than a defined number of days.", ex);
>
> }
>
> }
>
> }
>
>
>
> #endregion
>
> }
>
> }
>
>
>
