An implementation of the System.Web.Mvc.IDependencyResolver interface with StructureMap.

StructureMapDependencyResolver.cs

namespace Hagbarddenstore.Mvc
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web.Mvc;

    using StructureMap;

    /// <summary>
    /// Defines the StructureMapDependencyResolver type.
    /// </summary>
    public class StructureMapDependencyResolver : IDependencyResolver
    {
        /// <summary>
        /// The <see cref="IContainer"/>.
        /// </summary>
        private readonly IContainer _container;

        /// <summary>
        /// Initializes a new instance of the <see cref="StructureMapDependencyResolver"/> class.
        /// </summary>
        /// <param name="container">
        /// The container.
        /// </param>
        public StructureMapDependencyResolver(IContainer container)
        {
            _container = container;
        }

        /// <summary>
        /// Resolves singly registered services that support arbitrary object creation.
        /// </summary>
        /// <returns>
        /// The requested service or object.
        /// </returns>
        /// <param name="serviceType">
        /// The type of the requested service or object.
        /// </param>
        public object GetService(Type serviceType)
        {
            if (serviceType == null)
            {
                return null;
            }

            try
            {
                if (serviceType.IsAbstract || serviceType.IsInterface)
                {
                    return _container.TryGetInstance(serviceType);
                }

                return _container.GetInstance(serviceType);
            }
            catch (Exception exception)
            {
                // TODO: Handle the exception? Elmah?
                
                return null;
            }
        }

        /// <summary>
        /// Resolves multiply registered services.
        /// </summary>
        /// <returns>
        /// The requested services.
        /// </returns>
        /// <param name="serviceType">
        /// The type of the requested services.
        /// </param>
        public IEnumerable<object> GetServices(Type serviceType)
        {
            return _container.GetAllInstances(serviceType).Cast<object>();
        }
    }
}