Pipelines

This commit is contained in:
Dan Clark
2024-11-25 09:44:12 +00:00
parent 93e2be4eb0
commit d1ee8add0c
9 changed files with 197 additions and 36 deletions
@@ -0,0 +1,3 @@
namespace Toolkit.Foundation;
public delegate Task<TResponse> AsyncHandlerDelegate<TResponse>();
@@ -5,19 +5,35 @@ namespace Toolkit.Foundation;
public class AsyncHandlerInitialization<TMessage, TResponse, THandler>(IServiceProvider provider) :
IInitialization where THandler : class, IAsyncHandler<TMessage, TResponse>
where TMessage : class
where TMessage : class
{
public void Initialize()
{
if (!StrongReferenceMessenger.Default.IsRegistered<AsyncResponseEventArgs<TMessage, TResponse>>(provider))
{
StrongReferenceMessenger.Default.Register<IServiceProvider, AsyncResponseEventArgs<TMessage, TResponse>>(provider,
(provider, args) =>
async (provider, args) =>
{
foreach (IAsyncHandler<TMessage, TResponse> handler in provider.GetServices<IAsyncHandler<TMessage, TResponse>>())
IEnumerable<IAsyncHandler<TMessage, TResponse>> handlers = provider.GetServices<IAsyncHandler<TMessage, TResponse>>();
IEnumerable<IAsyncPipelineBehavior<TMessage, TResponse>> behaviors = provider.GetServices<IAsyncPipelineBehavior<TMessage, TResponse>>();
AsyncHandlerDelegate<TResponse> handlerDelegate = async () =>
{
args.Reply(handler.Handle(args.Message, args.CancellationToken));
TResponse response = default!;
foreach (IAsyncHandler<TMessage, TResponse> handler in handlers)
{
response = await handler.Handle(args.Message, args.CancellationToken);
}
return response;
};
foreach (IAsyncPipelineBehavior<TMessage, TResponse> behavior in behaviors.Reverse())
{
AsyncHandlerDelegate<TResponse> next = handlerDelegate;
handlerDelegate = () => behavior.Handle(args.Message, next);
}
args.Reply(await handlerDelegate());
});
}
}
@@ -25,20 +41,35 @@ public class AsyncHandlerInitialization<TMessage, TResponse, THandler>(IServiceP
public class AsyncHandlerInitialization<TMessage, THandler>(IServiceProvider provider) :
IInitialization where THandler : class, IAsyncHandler<TMessage>
where TMessage : class
where TMessage : class
{
public void Initialize()
{
if (!StrongReferenceMessenger.Default.IsRegistered<AsyncResponseEventArgs<TMessage, Unit>>(provider))
{
StrongReferenceMessenger.Default.Register<IServiceProvider, AsyncResponseEventArgs<TMessage, Unit>>(provider,
(provider, args) =>
async (provider, args) =>
{
foreach (IAsyncHandler<TMessage> handler in provider.GetServices<IAsyncHandler<TMessage>>())
IEnumerable<IAsyncHandler<TMessage>> handlers = provider.GetServices<IAsyncHandler<TMessage>>();
IEnumerable<IAsyncPipelineBehavior<TMessage, Unit>> behaviors = provider.GetServices<IAsyncPipelineBehavior<TMessage, Unit>>();
AsyncHandlerDelegate<Unit> handlerDelegate = async () =>
{
handler.Handle(args.Message, args.CancellationToken);
args.Reply(Unit.Value);
foreach (IAsyncHandler<TMessage> handler in handlers)
{
await handler.Handle(args.Message, args.CancellationToken);
}
return Unit.Value;
};
foreach (IAsyncPipelineBehavior<TMessage, Unit> behavior in behaviors.Reverse())
{
AsyncHandlerDelegate<Unit> next = handlerDelegate;
handlerDelegate = () => behavior.Handle(args.Message, next);
}
await handlerDelegate();
args.Reply(Unit.Value);
});
}
}
@@ -5,20 +5,35 @@ namespace Toolkit.Foundation;
public class AsyncHandlerKeyedInitialization<TMessage, THandler>(string key, IServiceProvider provider) :
IInitialization where THandler : class, IAsyncHandler<TMessage>
where TMessage : class
where TMessage : class
{
public void Initialize()
{
if (!StrongReferenceMessenger.Default.IsRegistered<AsyncResponseEventArgs<TMessage, Unit>, string>(provider, key))
{
StrongReferenceMessenger.Default.Register<IServiceProvider, AsyncResponseEventArgs<TMessage, Unit>, string>(provider, key,
(provider, args) =>
async (provider, args) =>
{
foreach (IAsyncHandler<TMessage> handler in provider.GetKeyedServices<IAsyncHandler<TMessage>>(key))
IEnumerable<IAsyncHandler<TMessage>> handlers = provider.GetKeyedServices<IAsyncHandler<TMessage>>(key);
IEnumerable<IAsyncPipelineBehavior<TMessage, Unit>> behaviors = provider.GetServices<IAsyncPipelineBehavior<TMessage, Unit>>();
AsyncHandlerDelegate<Unit> handlerDelegate = async () =>
{
handler.Handle(args.Message, args.CancellationToken);
args.Reply(Unit.Value);
foreach (IAsyncHandler<TMessage> handler in handlers)
{
await handler.Handle(args.Message, args.CancellationToken);
}
return Unit.Value;
};
foreach (IAsyncPipelineBehavior<TMessage, Unit> behavior in behaviors.Reverse())
{
AsyncHandlerDelegate<Unit> next = handlerDelegate;
handlerDelegate = () => behavior.Handle(args.Message, next);
}
await handlerDelegate();
args.Reply(Unit.Value);
});
}
}
@@ -26,20 +41,36 @@ public class AsyncHandlerKeyedInitialization<TMessage, THandler>(string key, ISe
public class AsyncHandlerKeyedInitialization<TMessage, TResponse, THandler>(string key, IServiceProvider provider) :
IInitialization where THandler : class, IAsyncHandler<TMessage, TResponse>
where TMessage : class
where TMessage : class
{
public void Initialize()
{
if (!StrongReferenceMessenger.Default.IsRegistered<AsyncResponseEventArgs<TMessage, TResponse>, string>(provider, key))
{
StrongReferenceMessenger.Default.Register<IServiceProvider, AsyncResponseEventArgs<TMessage, TResponse>, string>(provider, key,
(provider, args) =>
async (provider, args) =>
{
foreach (IAsyncHandler<TMessage, TResponse> handler in provider.GetKeyedServices<IAsyncHandler<TMessage, TResponse>>(key))
IEnumerable<IAsyncHandler<TMessage, TResponse>> handlers = provider.GetKeyedServices<IAsyncHandler<TMessage, TResponse>>(key);
IEnumerable<IAsyncPipelineBehavior<TMessage, TResponse>> behaviors = provider.GetServices<IAsyncPipelineBehavior<TMessage, TResponse>>();
AsyncHandlerDelegate<TResponse> handlerDelegate = async () =>
{
args.Reply(handler.Handle(args.Message, args.CancellationToken));
TResponse response = default!;
foreach (IAsyncHandler<TMessage, TResponse> handler in handlers)
{
response = await handler.Handle(args.Message, args.CancellationToken);
}
return response;
};
foreach (IAsyncPipelineBehavior<TMessage, TResponse> behavior in behaviors.Reverse())
{
AsyncHandlerDelegate<TResponse> next = handlerDelegate;
handlerDelegate = () => behavior.Handle(args.Message, next);
}
args.Reply(await handlerDelegate());
});
}
}
}
}
+1 -2
View File
@@ -1,4 +1,3 @@
namespace Toolkit.Foundation;
public delegate Task<TResponse> HandlerDelegate<TRequest, TResponse>(TRequest request,
CancellationToken cancellationToken);
public delegate TResponse HandlerDelegate<TResponse>();
+38 -6
View File
@@ -5,7 +5,7 @@ namespace Toolkit.Foundation;
public class HandlerInitialization<TMessage, TResponse, THandler>(IServiceProvider provider) :
IInitialization where THandler : class, IHandler<TMessage, TResponse>
where TMessage : class
where TMessage : class
{
public void Initialize()
{
@@ -14,10 +14,26 @@ public class HandlerInitialization<TMessage, TResponse, THandler>(IServiceProvid
StrongReferenceMessenger.Default.Register<IServiceProvider, ResponseEventArgs<TMessage, TResponse>>(provider,
(provider, args) =>
{
foreach (IHandler<TMessage, TResponse> handler in provider.GetServices<IHandler<TMessage, TResponse>>())
IEnumerable<IHandler<TMessage, TResponse>> handlers = provider.GetServices<IHandler<TMessage, TResponse>>();
IEnumerable<IPipelineBehavior<TMessage, TResponse>> behaviors = provider.GetServices<IPipelineBehavior<TMessage, TResponse>>();
HandlerDelegate<TResponse> handlerDelegate = () =>
{
handler.Handle(args.Message);
TResponse response = default!;
foreach (IHandler<TMessage, TResponse> handler in handlers)
{
response = handler.Handle(args.Message);
}
return response;
};
foreach (IPipelineBehavior<TMessage, TResponse> behavior in behaviors.Reverse())
{
HandlerDelegate<TResponse> next = handlerDelegate;
handlerDelegate = () => behavior.Handle(args.Message, next);
}
handlerDelegate();
});
}
}
@@ -25,7 +41,7 @@ public class HandlerInitialization<TMessage, TResponse, THandler>(IServiceProvid
public class HandlerInitialization<TMessage, THandler>(IServiceProvider provider) :
IInitialization where THandler : class, IHandler<TMessage>
where TMessage : class
where TMessage : class
{
public void Initialize()
{
@@ -34,11 +50,27 @@ public class HandlerInitialization<TMessage, THandler>(IServiceProvider provider
StrongReferenceMessenger.Default.Register<IServiceProvider, TMessage>(provider,
(provider, args) =>
{
foreach (IHandler<TMessage> handler in provider.GetServices<IHandler<TMessage>>())
IEnumerable<IHandler<TMessage>> handlers = provider.GetServices<IHandler<TMessage>>();
IEnumerable<IPipelineBehavior<TMessage, Unit>> behaviors = provider.GetServices<IPipelineBehavior<TMessage, Unit>>();
HandlerDelegate<Unit> handlerDelegate = () =>
{
handler.Handle(args);
foreach (IHandler<TMessage> handler in handlers)
{
handler.Handle(args);
}
return Unit.Value;
};
foreach (IPipelineBehavior<TMessage, Unit> behavior in behaviors.Reverse())
{
HandlerDelegate<Unit> next = handlerDelegate;
handlerDelegate = () => behavior.Handle(args, next);
}
handlerDelegate();
});
}
}
}
@@ -5,7 +5,7 @@ namespace Toolkit.Foundation;
public class HandlerKeyedInitialization<TMessage, THandler>(string key, IServiceProvider provider) :
IInitialization where THandler : class, IHandler<TMessage>
where TMessage : class
where TMessage : class
{
public void Initialize()
{
@@ -14,18 +14,34 @@ public class HandlerKeyedInitialization<TMessage, THandler>(string key, IService
StrongReferenceMessenger.Default.Register<IServiceProvider, TMessage, string>(provider, key,
(provider, args) =>
{
foreach (IHandler<TMessage> handler in provider.GetKeyedServices<IHandler<TMessage>>(key))
IEnumerable<IHandler<TMessage>> handlers = provider.GetKeyedServices<IHandler<TMessage>>(key);
IEnumerable<IPipelineBehavior<TMessage, Unit>> behaviors = provider.GetServices<IPipelineBehavior<TMessage, Unit>>();
HandlerDelegate<Unit> handlerDelegate = () =>
{
handler.Handle(args);
foreach (IHandler<TMessage> handler in handlers)
{
handler.Handle(args);
}
return Unit.Value;
};
foreach (IPipelineBehavior<TMessage, Unit> behavior in behaviors.Reverse())
{
HandlerDelegate<Unit> next = handlerDelegate;
handlerDelegate = () => behavior.Handle(args, next);
}
handlerDelegate();
});
}
}
}
public class HandlerKeyedInitialization<TMessage, TResponse, THandler>(string key, IServiceProvider provider) :
IInitialization where THandler : class, IHandler<TMessage, TResponse>
where TMessage : class
where TMessage : class
{
public void Initialize()
{
@@ -34,11 +50,27 @@ public class HandlerKeyedInitialization<TMessage, TResponse, THandler>(string ke
StrongReferenceMessenger.Default.Register<IServiceProvider, ResponseEventArgs<TMessage, TResponse>, string>(provider, key,
(provider, args) =>
{
foreach (IHandler<TMessage, TResponse> handler in provider.GetKeyedServices<IHandler<TMessage, TResponse>>(key))
IEnumerable<IHandler<TMessage, TResponse>> handlers = provider.GetKeyedServices<IHandler<TMessage, TResponse>>(key);
IEnumerable<IPipelineBehavior<TMessage, TResponse>> behaviors = provider.GetServices<IPipelineBehavior<TMessage, TResponse>>();
HandlerDelegate<TResponse> handlerDelegate = () =>
{
handler.Handle(args.Message);
TResponse response = default!;
foreach (IHandler<TMessage, TResponse> handler in handlers)
{
response = handler.Handle(args.Message);
}
return response;
};
foreach (IPipelineBehavior<TMessage, TResponse> behavior in behaviors.Reverse())
{
HandlerDelegate<TResponse> next = handlerDelegate;
handlerDelegate = () => behavior.Handle(args.Message, next);
}
handlerDelegate();
});
}
}
}
}
@@ -0,0 +1,8 @@
namespace Toolkit.Foundation;
public interface IAsyncPipelineBehavior<TMessage,
TResponse>
{
Task<TResponse> Handle(TMessage message,
AsyncHandlerDelegate<TResponse> next);
}
+9
View File
@@ -0,0 +1,9 @@
namespace Toolkit.Foundation;
public interface IPipelineBehavior<TMessage,
TResponse>
{
TResponse Handle(TMessage message,
HandlerDelegate<TResponse> next);
}
@@ -124,7 +124,7 @@ public static class IServiceCollectionExtensions
where THandler : class, IHandler<TMessage>
where TMessage : class
{
if (key is { Length: > 0})
if (key is { Length: > 0 })
{
services.Add(new ServiceDescriptor(typeof(IHandler<TMessage>), key, typeof(THandler), lifetime));
services.AddInitialization<HandlerKeyedInitialization<TMessage, IHandler<TMessage>>>(key);
@@ -158,7 +158,7 @@ public static class IServiceCollectionExtensions
return services;
}
public static IServiceCollection AddInitialization<TInitialization>(this IServiceCollection services,
public static IServiceCollection AddInitialization<TInitialization>(this IServiceCollection services,
params object[] parameters)
where TInitialization : class,
IInitialization
@@ -167,6 +167,22 @@ public static class IServiceCollectionExtensions
return services;
}
public static IServiceCollection AddAsyncPipelineBehavior<TMessage, TResponse, TBehavior>(this IServiceCollection services)
where TBehavior : class,
IAsyncPipelineBehavior<TMessage, TResponse>
{
services.AddTransient<IAsyncPipelineBehavior<TMessage, TResponse>, TBehavior>();
return services;
}
public static IServiceCollection AddPipelineBehavior<TMessage, TResponse, TBehavior>(this IServiceCollection services)
where TBehavior : class,
IPipelineBehavior<TMessage, TResponse>
{
services.AddTransient<IPipelineBehavior<TMessage, TResponse>, TBehavior>();
return services;
}
public static IServiceCollection AddRange(this IServiceCollection services,
IServiceCollection fromServices)
{