Reference version of a ControllerFactory used to configure OnTopic.

OrganizationNameControllerFactory.cs

/*==============================================================================================================================
| Author        Ignia, LLC
| Client        OrganizationName
| Project       Website
\=============================================================================================================================*/
using System;
using System.Web.Mvc;
using System.Web.Routing;
using Ignia.Topics;
using Ignia.Topics.Mapping;
using Ignia.Topics.Repositories;
using Ignia.Topics.Web;
using Ignia.Topics.Web.Mvc;

namespace OrganizationName.Web {

  /*============================================================================================================================
  | CLASS: CONTROLLER FACTORY
  \---------------------------------------------------------------------------------------------------------------------------*/
  /// <summary>
  ///   Responsible for creating instances of factories in response to web requests. Represents the Composition Root for
  ///   Dependency Injection.
  /// </summary>
  class OrganizationNameControllerFactory : DefaultControllerFactory {

    /*==========================================================================================================================
    | PRIVATE INSTANCES
    \-------------------------------------------------------------------------------------------------------------------------*/
    private readonly            ITypeLookupService              _viewModelLookupService         = null;
    private readonly            ITopicMappingService            _topicMappingService            = null;
    private readonly            ITopicRepository                _topicRepository                = null;
    private readonly            Topic                           _rootTopic                      = null;

    private readonly IHierarchicalTopicMappingService<NavigationTopicViewModel> _hierarchicalTopicMappingService = null;
        
    /*==========================================================================================================================
    | CONSTRUCTOR
    \-------------------------------------------------------------------------------------------------------------------------*/
    /// <summary>
    ///   Establishes a new instance of the <see cref="OrganizationNameControllerFactory"/>, including any shared dependencies 
    ///   to be used across instances of controllers.
    /// </summary>
    public OrganizationNameControllerFactory() : base() {

      /*------------------------------------------------------------------------------------------------------------------------
      | ESTABLISH DATABASE CONNECTION
      \-----------------------------------------------------------------------------------------------------------------------*/
      var connectionString      = ConfigurationManager.ConnectionStrings["OnTopic"].ConnectionString;
      var sqlTopicRepository    = new SqlTopicRepository(connectionString);
      
      /*------------------------------------------------------------------------------------------------------------------------
      | SAVE STANDARD DEPENDENCIES
      \-----------------------------------------------------------------------------------------------------------------------*/
      _viewModelLookupService   = new TopicViewModelLookupService();
      _topicRepository          = new CachedTopicRepository(sqlTopicRepository);
      _topicMappingService      = new TopicMappingService(_topicRepository, _viewModelLookupService);
      _rootTopic                = cachedTopicRepository.Load();
      
      /*------------------------------------------------------------------------------------------------------------------------
      | CONSTRUCT HIERARCHICAL TOPIC MAPPING SERVICE
      \-----------------------------------------------------------------------------------------------------------------------*/
      var service = new HierarchicalTopicMappingService<NavigationTopicViewModel>(
        _topicRepository,
        _topicMappingService
      );

      _hierarchicalTopicMappingService = new CachedHierarchicalTopicMappingService<NavigationTopicViewModel>(
        service
      );

    }

    /*==========================================================================================================================
    | GET CONTROLLER INSTANCE
    \-------------------------------------------------------------------------------------------------------------------------*/
    /// <summary>
    ///   Overrides the factory method for creating new instances of controllers.
    /// </summary>
    /// <returns>A concrete instance of an <see cref="IController"/>.</returns>
    protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType) {

      /*------------------------------------------------------------------------------------------------------------------------
      | Register
      \-----------------------------------------------------------------------------------------------------------------------*/
      var mvcTopicRoutingService        = new MvcTopicRoutingService(
        _topicRepository,
        requestContext.HttpContext.Request.Url,
        requestContext.RouteData
      );

      // Set default controller
      if (controllerType == null) {
        controllerType = typeof(FallbackController);
      }

      /*------------------------------------------------------------------------------------------------------------------------
      | Resolve
      \-----------------------------------------------------------------------------------------------------------------------*/
      switch (controllerType.Name) {

        case nameof(TopicController):
          return new TopicController(_topicRepository, mvcTopicRoutingService, _topicMappingService);
  
        case nameof(LayoutController):
          return new LayoutController(mvcTopicRoutingService, _hierarchicalTopicMappingService, _topicRepository);

        case (nameof(RedirectController)):
          return new RedirectController(_topicRepository);

        case (nameof(SitemapController)):
          return new SitemapController(_topicRepository);

        case (nameof(ErrorController)):
          return new ErrorController();

        case default:
          return base.GetControllerInstance(requestContext, controllerType);
          
      }

    }

  } //Class
} //Namespace