幸福框架：可扩展的应用程序 “启动引导” 框架

背景

应用程序引导经常要做如下这些事情：

• • 动态加载DLL（或各种插件）。
  • 注册IOC容器。
  • 设置其他全局配置。

尤其以注册IOC容器的代码最烦人，看一个我昨天写的烦人代码：

using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Threading;
 
 using Microsoft.Practices.ServiceLocation;
 using Microsoft.Practices.Unity;
 
 using Happy.Event;
 using Happy.Event.Offline;
 
 namespace Happy.Event.Demo.Simple
 {
     class Program
     {
         static readonly string _QueueName = "Happy.Event.Demo.Simple";
 
         static void Main(string[] args)
         {
             InitUnity();
 
             var writeQueue = OfflineEventQueueFactory.CreateMSMQOfflineEventQueue(_QueueName);
             EventPublisher.Current.AddService(writeQueue);
 
             EventPublisher.Current.Publish(new TestEvent());
 
             new Thread(() =>
             {
                 var readQueue = OfflineEventQueueFactory.CreateMSMQOfflineEventQueue(_QueueName);
                 var offlineEventProcessor = new OfflineEventProcessor(readQueue);
 
                 offlineEventProcessor.Start();
             })
             .Start();
 
             Console.ReadLine();
         }
 
         static void InitUnity()
         {
             var container = new UnityContainer();
 
             ServiceLocator.SetLocatorProvider(() => new UnityServiceLocator(container));
 
             container.RegisterType<ISyncEventSubscriber<TestEvent>, TestSyncEventSubscriber1>("TestSyncEventSubscriber1");
             container.RegisterType<ISyncEventSubscriber<TestEvent>, TestSyncEventSubscriber2>("TestSyncEventSubscriber2");
             container.RegisterType<IAsyncEventSubscriber<TestEvent>, TestAsyncEventSubscriber1>("TestAsyncEventSubscriber1");
             container.RegisterType<IAsyncEventSubscriber<TestEvent>, TestAsyncEventSubscriber2>("TestAsyncEventSubscriber2");
             container.RegisterType<IOfflineEventSubscriber<TestEvent>, TestOfflineEventSubscriber1>("TestOfflineEventSubscriber1");
             container.RegisterType<IOfflineEventSubscriber<TestEvent>, TestOfflineEventSubscriber2>("TestOfflineEventSubscriber2");
         }
     }
 }

是不是很糟糕，看着不爽。这也是我写这篇文章的目的。

新框架原理

约定胜于配置

用新框架重新昨天的配置代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Threading;

using Happy.Bootstrap;
using Happy.Event;
using Happy.Event.Offline;

namespace Happy.Event.Demo.Simple
{
    class Program
    {
        static readonly string _QueueName = "Happy.Event.Demo.Simple";

        static void Main(string[] args)
        {
            InitApp();

            InitOfflineEventProcessor();

            InitEventPublisher();

            EventPublisher.Current.Publish(new TestEvent());
        }

        static void InitApp()
        {
            BootstrapService
                .Current
                .UseRegisterServiceByConventionPlug()
                    .UseEventSubscriberRegister()
                    .Done()
                .Start();
        }

        private static void InitEventPublisher()
        {
            var writeQueue = OfflineEventQueueFactory.CreateMSMQOfflineEventQueue(_QueueName);
            EventPublisher.Current.AddService(writeQueue);
        }

        private static void InitOfflineEventProcessor()
        {
            new Thread(() =>
            {
                var readQueue = OfflineEventQueueFactory.CreateMSMQOfflineEventQueue(_QueueName);
                var offlineEventProcessor = new OfflineEventProcessor(readQueue);

                offlineEventProcessor.Start();
            })
            .Start();
        }
    }
}

这样是不是看着舒服多了。

备注

代码示例，可以直接去http://happy.codeplex.com/SourceControl/latest这里下载最新的源代码。