C# 配置MassTransit以反序列化多态属性
因此,我们正在发送一条由复杂域类型组成的消息。我们的消费者没有触发,因为MassTransit无法反序列化消息并委托给消费者 此场景可以通过以下方式演示:C# 配置MassTransit以反序列化多态属性,c#,serialization,masstransit,C#,Serialization,Masstransit,因此,我们正在发送一条由复杂域类型组成的消息。我们的消费者没有触发,因为MassTransit无法反序列化消息并委托给消费者 此场景可以通过以下方式演示: // message interface public interface ITestMessage { TestBaseClass Data { get; set; } }; // message implementation public class TestMessage : ITestMessage { public Tes
// message interface
public interface ITestMessage { TestBaseClass Data { get; set; } };
// message implementation
public class TestMessage : ITestMessage
{
public TestBaseClass Data { get; set; }
}
// abstract child
public abstract class TestBaseClass { }
// a concrete implementation of abstract child, cannot be deserialized
// by default serializer configuration
public class TestConcreteClass : TestBaseClass { }
// simple consumer, uses a reset-event to synchronize with calling
// test method
public class TestConsumer : IConsumer<ITestMessage>
{
private readonly Action action = null;
public TestConsumer(Action action) { this.action = action; }
public Task Consume(ConsumeContext<ITestMessage> context)
{
action();
return context.CompleteTask;
}
}
[TestMethod]
public void Publish_WhenPolymorphicMessage_ConsumesMessage()
{
ManualResetEvent isConsumed = new ManualResetEvent(false);
IBusControl bus = Bus.Factory.CreateUsingInMemory(c =>
{
InMemoryTransportCache inMemoryTransportCache =
new InMemoryTransportCache(Environment.ProcessorCount);
c.SetTransportProvider(inMemoryTransportCache);
c.ReceiveEndpoint(
"",
e => e.Consumer<TestConsumer>(
() => new TestConsumer(() => isConsumed.Set())));
});
bus.Start();
ITestMessage message = new TestMessage
{
// comment out assignment below, et voila, we pass :S
Data = new TestConcreteClass { },
};
// attempt to publish message and wait for consumer
bus.Publish<ITestMessage>(message);
// simple timeout fails
Assert.IsTrue(isConsumed.WaitOne(TimeSpan.FromSeconds(5)));
}
我尝试了各种配置,但没有成功
IBusControl bus = Bus.Factory.CreateUsingInMemory(c =>
{
InMemoryTransportCache inMemoryTransportCache =
new InMemoryTransportCache(Environment.ProcessorCount);
c.SetTransportProvider(inMemoryTransportCache);
// attempt to set and configure json serializer; zero effect
c.ConfigureJsonDeserializer(
s =>
{
s.TypeNameHandling = TypeNameHandling.All;
return s;
});
c.ConfigureJsonSerializer(
s =>
{
s.TypeNameHandling = TypeNameHandling.All;
return s;
});
c.UseJsonSerializer();
c.ReceiveEndpoint(
"",
e => e.Consumer<TestConsumer>(
() => new TestConsumer(() => isConsumed.Set())));
});
IBusControl总线=bus.Factory.CreateUsingInMemory(c=>
{
InMemoryTransportCache InMemoryTransportCache=
新的InMemoryTransportCache(Environment.ProcessorCount);
c、 SetTransportProvider(inMemoryTransportCache);
//尝试设置和配置json序列化程序;零效果
c、 配置JSONDESerializer(
s=>
{
s、 TypeNameHandling=TypeNameHandling.All;
返回s;
});
c、 配置JSONSerializer(
s=>
{
s、 TypeNameHandling=TypeNameHandling.All;
返回s;
});
c、 使用JSONSerializer();
c、 接收端点(
"",
e=>e.消费者(
()=>newtestconsumer(()=>isConsumed.Set());
});
我正在寻找任何成功的解决方案,例如使用
KnownType
属性装饰消息/域类,或总线配置。任何能够成功通过上述测试方法的操作。将您的ITestMessage
接口声明更改为:
// message interface
public interface ITestMessage
{
[JsonProperty(TypeNameHandling = TypeNameHandling.Objects)]
TestBaseClass Data { get; set; }
};
为我解决了这个问题。我将引用以下内容:并指出,当您尝试使用行为序列化类时,您会遇到麻烦。@Chris Patterson,不适用。我们不是基于内容的路由,这是愚蠢的负载。纯序列化。如果下面的解决方案对您有效,请关闭此问题-谢谢。单元测试:谢谢!很抱歉反应迟缓,但有效,现已被接受!
// message interface
public interface ITestMessage
{
[JsonProperty(TypeNameHandling = TypeNameHandling.Objects)]
TestBaseClass Data { get; set; }
};