NServiceBus - NServiceBus.Host作为发布者,WPF应用作为订阅者。如何?

时间:2012-02-17 08:40:58

标签: c# wpf nservicebus

我正在尝试使用NServiceBus从控制台进程(非常类似于启动NServiceBus.Host.exe的库中包含的PubSub示例)向我的WPF应用程序发送消息。

这就是我所做的。 在WPF App.xaml类中,我定义了

public static IBus Bus;

相同的类,在application_startup处理程序中:

Bus = Configure.With().DefaultBuilder().BinarySerializer()
.MsmqTransport().IsTransactional(true).PurgeOnStartup(false)
.UnicastBus().ImpersonateSender(false).LoadMessageHandlers()
.CreateBus()
.Start();

Bus.Subscribe<EventMessage>((message) =>
{
    switch (message.EventType)
    {
        case EventType.CreateSingleStay:
            break;
        case EventType.MoveToStartUpState:
        case EventType.MoveToOperativeState:
        case EventType.MoveToOutOfOrderState:
            break;
        case EventType.InputSignalDetected:

            break;
    }
    return true;
});

这是WPF应用程序的app.config:

<configSections>
    <section name="MsmqTransportConfig" type="NServiceBus.Config.MsmqTransportConfig, NServiceBus.Core" />
    <section name="UnicastBusConfig" type="NServiceBus.Config.UnicastBusConfig, NServiceBus.Core" />
</configSections>
<MsmqTransportConfig InputQueue="PresentationInputQueue" ErrorQueue="PresentationErrorQueue" NumberOfWorkerThreads="5" MaxRetries="5" />
<UnicastBusConfig>
<MessageEndpointMappings>
    <add Messages="PlusMatic.EventsTest" Endpoint="PlusMaticPublisherInputQueue" />
</MessageEndpointMappings>
</UnicastBusConfig> 

然后,我的NServiceBus.Host发布者,非常简单的c#类库,它在调试NServiceBus.Host.exe可执行文件中启动:

namespace PlusMatic.EventsTest
{
    class EndpointConfig : IConfigureThisEndpoint, AsA_Publisher { }
}

...

namespace PlusMatic.EventsTest
{
public class TestPlusMaticServerEndpoint : IWantToRunAtStartup
{
    public IBus Bus { get; set; }
    private Thread _loopConsole;

    #region Implementation of IWantToRunAtStartup

    public void Run()
    {
        string readLine = string.Empty;
        bool publishIEvent = true;
        while (readLine != "j")
        {
            readLine = Console.ReadLine();
            var eventMessage = publishIEvent
                                   ? Bus.CreateInstance<IEvent>()
                                   : new EventMessage();
...

            Bus.Publish(eventMessage);

            Console.WriteLine("Published event with Id {0}.", eventMessage.EventId);

            publishIEvent = !publishIEvent;
        }

    }
    public void Stop()
    {

    }
}
}

这是我的活动课

    namespace PlusMatic.EventsTest
    {
        [Serializable]
        public class EventMessage : IEvent
        {
            public Guid EventId { get; set; }
            public DateTime? Time { get; set; }
            public EventType EventType { get; set; }
            public MoveToStateEvent NextApplicationState { get; set; }
            public InputEvent InputSignal { get; set; }
            public IProductCard<Card> Card { get; set; }
        }
        public interface IEvent : IMessage
        {
            Guid EventId { get; set; }
            DateTime? Time { get; set; }
            IProductCard<Card> Card { get; set; }
            EventType EventType { get; set; }
            MoveToStateEvent NextApplicationState { get; set; }
            InputEvent InputSignal { get; set; }
        }
    }

发布商的App.config:

    <configSections>
        <section name="MsmqTransportConfig" type="NServiceBus.Config.MsmqTransportConfig, NServiceBus.Core" />
    </configSections>

    <MsmqTransportConfig ErrorQueue="error" NumberOfWorkerThreads="1" MaxRetries="5"/>

就是这样。 什么都行不通。 我从控制台项目发布事件,我的WPF应用程序没有任何反应。

也许我需要更多练习......;)

我正在使用NService Bus 3.0版,这是在RC4版本中,但我认为这不是问题。

感谢任何人都可以提供帮助!

1 个答案:

答案 0 :(得分:0)

发现问题。 我订阅了一个“EventMessage”(实现了“IEvent” - &gt;实现了“IMessage”)并发布了“IEvent”!