InterceptorManager.cs

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//-----------------------------------------------------------------------
// <copyright file="InterceptorManager.cs" company="Marimer LLC">
//     Copyright (c) Marimer LLC. All rights reserved.
//     Website: https://cslanet.com
// </copyright>
// <summary>Cascades DataPortal interception requests to registered interceptors</summary>
//-----------------------------------------------------------------------
using System.Collections.Generic;
 
namespace Csla.Server
{
  public class InterceptorManager
  {
    private readonly IReadOnlyList<IInterceptDataPortal> _interceptors;
 
    public InterceptorManager(IEnumerable<IInterceptDataPortal> interceptors)
    {
      _interceptors = new List<IInterceptDataPortal>(interceptors);
    }
 
    public void Initialize(InterceptArgs e)
    {
      foreach (IInterceptDataPortal interceptor in _interceptors)
      {
        interceptor.Initialize(e);
      }
    }
 
    public void Complete(InterceptArgs e)
    {
      // Iterate backwards through interceptors, so that they appear to wrap one another, decorator-style
      for (int interceptorIndex = _interceptors.Count - 1; interceptorIndex > -1; interceptorIndex--)
      {
        IInterceptDataPortal interceptor = _interceptors[interceptorIndex];
        interceptor.Complete(e);
      }
    }
  }
}