【IOC--Common Service Locator】不依赖于某个具体的IoC

 1 using System;
 2 using System.Collections.Generic;
 3 using Microsoft.Practices.ServiceLocation;
 4 
 5 namespace Microsoft.Practices.Unity.ServiceLocatorAdapter
 6 {
 7     public class UnityServiceLocator : ServiceLocatorImplBase
 8     {
 9         private IUnityContainer container;
10 
11         public UnityServiceLocator(IUnityContainer container)
12         {
13             this.container = container;
14         }
15 
16         /// <summary>
17         ///             When implemented by inheriting classes, this method will do the actual work of resolving
18         ///             the requested service instance.
19         /// </summary>
20         /// <param name="serviceType">Type of instance requested.</param>
21         /// <param name="key">Name of registered service you want. May be null.</param>
22         /// <returns>
23         /// The requested service instance.
24         /// </returns>
25         protected override object DoGetInstance(Type serviceType, string key)
26         {
27             return container.Resolve(serviceType, key);
28         }
29 
30         /// <summary>
31         ///             When implemented by inheriting classes, this method will do the actual work of
32         ///             resolving all the requested service instances.
33         /// </summary>
34         /// <param name="serviceType">Type of service requested.</param>
35         /// <returns>
36         /// Sequence of service instance objects.
37         /// </returns>
38         protected override IEnumerable<object> DoGetAllInstances(Type serviceType)
39         {
40             return container.ResolveAll(serviceType);
41         }
42     }
43 }

#region 程序集 Microsoft.Practices.ServiceLocation.dll, v2.0.50727
\CommonServiceLocator.UnityAdapter\Lib\Microsoft.Practices.ServiceLocation.dll
#endregion

using System;
using System.Collections.Generic;

namespace Microsoft.Practices.ServiceLocation
{
    // 摘要:
    //     This class is a helper that provides a default implementation for most of
    //     the methods of Microsoft.Practices.ServiceLocation.IServiceLocator.
    public abstract class ServiceLocatorImplBase : IServiceLocator, IServiceProvider
    {
        protected ServiceLocatorImplBase();

        // 摘要:
        //     When implemented by inheriting classes, this method will do the actual work
        //     of resolving all the requested service instances.
        //
        // 参数:
        //   serviceType:
        //     Type of service requested.
        //
        // 返回结果:
        //     Sequence of service instance objects.
        protected abstract IEnumerable<object> DoGetAllInstances(Type serviceType);
        //
        // 摘要:
        //     When implemented by inheriting classes, this method will do the actual work
        //     of resolving the requested service instance.
        //
        // 参数:
        //   serviceType:
        //     Type of instance requested.
        //
        //   key:
        //     Name of registered service you want. May be null.
        //
        // 返回结果:
        //     The requested service instance.
        protected abstract object DoGetInstance(Type serviceType, string key);
        //
        // 摘要:
        //     Format the exception message for use in an Microsoft.Practices.ServiceLocation.ActivationException
        //     that occurs while resolving multiple service instances.
        //
        // 参数:
        //   actualException:
        //     The actual exception thrown by the implementation.
        //
        //   serviceType:
        //     Type of service requested.
        //
        // 返回结果:
        //     The formatted exception message string.
        protected virtual string FormatActivateAllExceptionMessage(Exception actualException, Type serviceType);
        //
        // 摘要:
        //     Format the exception message for use in an Microsoft.Practices.ServiceLocation.ActivationException
        //     that occurs while resolving a single service.
        //
        // 参数:
        //   actualException:
        //     The actual exception thrown by the implementation.
        //
        //   serviceType:
        //     Type of service requested.
        //
        //   key:
        //     Name requested.
        //
        // 返回结果:
        //     The formatted exception message string.
        protected virtual string FormatActivationExceptionMessage(Exception actualException, Type serviceType, string key);
        //
        // 摘要:
        //     Get all instances of the given TService currently registered in the container.
        //
        // 类型参数:
        //   TService:
        //     Type of object requested.
        //
        // 返回结果:
        //     A sequence of instances of the requested TService.
        //
        // 异常:
        //   Microsoft.Practices.ServiceLocation.ActivationException:
        //     if there is are errors resolving the service instance.
        public virtual IEnumerable<TService> GetAllInstances<TService>();
        //
        // 摘要:
        //     Get all instances of the given serviceType currently registered in the container.
        //
        // 参数:
        //   serviceType:
        //     Type of object requested.
        //
        // 返回结果:
        //     A sequence of instances of the requested serviceType.
        //
        // 异常:
        //   Microsoft.Practices.ServiceLocation.ActivationException:
        //     if there is are errors resolving the service instance.
        public virtual IEnumerable<object> GetAllInstances(Type serviceType);
        //
        // 摘要:
        //     Get an instance of the given TService.
        //
        // 类型参数:
        //   TService:
        //     Type of object requested.
        //
        // 返回结果:
        //     The requested service instance.
        //
        // 异常:
        //   Microsoft.Practices.ServiceLocation.ActivationException:
        //     if there is are errors resolving the service instance.
        public virtual TService GetInstance<TService>();
        //
        // 摘要:
        //     Get an instance of the given named TService.
        //
        // 参数:
        //   key:
        //     Name the object was registered with.
        //
        // 类型参数:
        //   TService:
        //     Type of object requested.
        //
        // 返回结果:
        //     The requested service instance.
        //
        // 异常:
        //   Microsoft.Practices.ServiceLocation.ActivationException:
        //     if there is are errors resolving the service instance.
        public virtual TService GetInstance<TService>(string key);
        //
        // 摘要:
        //     Get an instance of the given serviceType.
        //
        // 参数:
        //   serviceType:
        //     Type of object requested.
        //
        // 返回结果:
        //     The requested service instance.
        //
        // 异常:
        //   Microsoft.Practices.ServiceLocation.ActivationException:
        //     if there is an error resolving the service instance.
        public virtual object GetInstance(Type serviceType);
        //
        // 摘要:
        //     Get an instance of the given named serviceType.
        //
        // 参数:
        //   serviceType:
        //     Type of object requested.
        //
        //   key:
        //     Name the object was registered with.
        //
        // 返回结果:
        //     The requested service instance.
        //
        // 异常:
        //   Microsoft.Practices.ServiceLocation.ActivationException:
        //     if there is an error resolving the service instance.
        public virtual object GetInstance(Type serviceType, string key);
        //
        // 摘要:
        //     Implementation of System.IServiceProvider.GetService(System.Type).
        //
        // 参数:
        //   serviceType:
        //     The requested service.
        //
        // 返回结果:
        //     The requested object.
        //
        // 异常:
        //   Microsoft.Practices.ServiceLocation.ActivationException:
        //     if there is an error in resolving the service instance.
        public virtual object GetService(Type serviceType);
    }
}