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Custom Exception Framework: Using Enterprise Library Exception Handling Block

, 30 Oct 2008
This article demonstrates a working model of a custom Exception block using Enterprise Library Exception Handling Block which is built around MVP architecture.
//--------------------------------------------
//  Author        : Santosh Poojari
//  Created Date  : 22/02/2008
//  Email ID      : santosh.poojari@gmail.com
//--------------------------------------------

#region References
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Practices.EnterpriseLibrary.ExceptionHandling;
using Project.Practice.MVP.Services;
using Project.Practice.MVP.ExceptionHandling.CustomException;
#endregion

namespace Project.Practice.MVP.Presenter
{
    public class BasePresenter
    {
        public IServicesProvider m_Service = null;
        public BasePresenter()
        {
            m_Service = new Services.ServicesProvider();
        }
      
        public void ProcessPresenterLayerException(Exception ex)
        {
            bool reThrow = false;
            if (ex.GetType().Equals(typeof(CriticalException)))
            {
                reThrow = ExceptionPolicy.HandleException(ex, "Propogate Policy");
                if (reThrow)
                {
                    throw ex;
                }
            }
            else if (ex.GetType().Equals(typeof(ViewLayerException)))
            {
                reThrow = ExceptionPolicy.HandleException(ex, "Propogate Policy");
                if (reThrow)
                {
                    throw ex;
                }
            }
            else if (ex.GetType().Equals(typeof(DataAccesLayerException)) == true)
            {
                reThrow = ExceptionPolicy.HandleException(ex, "Propogate Policy");
                if (reThrow)
                {
                    throw ex;
                }
            }
            else if (ex.GetType().Equals(typeof(SQLDALException)) == true)
            {
                reThrow = ExceptionPolicy.HandleException(ex, "Propogate Policy");
                if (reThrow)
                {
                    throw ex;
                }
            }
            else
            {
                reThrow = ExceptionPolicy.HandleException(ex, "Presenter Layer Policy");
                if (reThrow)
                {
                    throw ex;
                }
            }
        } 

    }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

santosh poojari
Technical Lead
India India
Whatsup-->Exploring--> MVC/HTML5/Javascript & Virtualization.......!
www.santoshpoojari.blogspot.com

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