Handling Error Centrally in a SharePoint Application

using System;
using System.Web;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Web.UI;
using Microsoft.Practices.EnterpriseLibrary.Logging;

namespace CentralErrorHandler
{
    public class ErrorModule : IHttpModule
    {
        #region IHttpModule Members

        public void Dispose()
        {
            //throw new Exception("The method or operation is not implemented.");
        }

        public void Init(HttpApplication Context)
        {
            Context.Error += new EventHandler(Application_Error);
        }

        #endregion


        public void Application_Error(object sender, EventArgs e)
        {            
            HttpContext Context = HttpContext.Current;            
            Exception exception;
            for (exception = Context.Server.GetLastError(); exception.InnerException != null; exception = exception.InnerException) { }

            String code = DateTime.Now.ToString("ddMMyyyy-HHmmfff");
            String Message = exception.Message + Environment.NewLine + "Stack Trace: " + exception.StackTrace;

            Logger.Write(Message, "General",5, 1, System.Diagnostics.TraceEventType.Critical, code);  
            
            HttpContext.Current.Application.Add("ErrorCode", code);
            HttpContext.Current.Application.Add("LastException", exception);

            String CustomErrorPagePath = System.Configuration.ConfigurationManager.AppSettings["CustomErrorPagePath"];

            ((System.Web.HttpApplication)(sender)).Response.Redirect(CustomErrorPagePath);
        }



    }
}