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Add an endpoint that supports generics #5

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6 changes: 5 additions & 1 deletion SimpleMediator/Core/IMediator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,11 @@ namespace SimpleMediator.Core
{
public interface IMediator
{
Task<TResponse> HandleAsync<TResponse>(IMessage<TResponse> message, IMediationContext mediationContext = default(IMediationContext),
Task<TResponse> HandleAsync<TResponse>(IMessage<TResponse> message,
IMediationContext mediationContext = default(IMediationContext),
CancellationToken cancellationToken = default(CancellationToken));
Task<TResponse> HandleAsync<TMessage, TResponse>(TMessage message,
IMediationContext mediationContext = default(IMediationContext),
CancellationToken cancellationToken = default(CancellationToken)) where TMessage : IMessage<TResponse>;
}
}
25 changes: 22 additions & 3 deletions SimpleMediator/Core/Mediator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,8 @@ public Mediator(IServiceFactory serviceFactory)
}

public Task<TResponse> HandleAsync<TResponse>(IMessage<TResponse> message,
IMediationContext mediationContext = default(MediationContext), CancellationToken cancellationToken = default(CancellationToken))
IMediationContext mediationContext = default(IMediationContext),
CancellationToken cancellationToken = default(CancellationToken))
{
if (mediationContext == null)
{
Expand All @@ -32,7 +33,25 @@ public Task<TResponse> HandleAsync<TResponse>(IMessage<TResponse> message,
return result;
}

private Task<TResponse> InvokeInstanceAsync<TResponse>(object instance, IMessage<TResponse> message, Type targetHandler,
public Task<TResponse> HandleAsync<TMessage, TResponse>(TMessage message,
IMediationContext mediationContext = default(IMediationContext),
CancellationToken cancellationToken = default(CancellationToken)) where TMessage : IMessage<TResponse>
{
if (mediationContext == null)
{
mediationContext = MediationContext.Default;
}

var targetHandler = typeof(IMessageProcessor<TMessage, TResponse>);
var instance = _serviceFactory.GetInstance(targetHandler);

var result = InvokeInstanceAsync(instance, message, targetHandler, mediationContext, cancellationToken);

return result;
}

private Task<TResponse> InvokeInstanceAsync<TResponse>(object instance,
IMessage<TResponse> message, Type targetHandler,
IMediationContext mediationContext, CancellationToken cancellationToken)
{
var method = instance.GetType()
Expand All @@ -45,7 +64,7 @@ private Task<TResponse> InvokeInstanceAsync<TResponse>(object instance, IMessage
instance.GetType().FullName);
}

return (Task<TResponse>) method.Invoke(instance, new object[] {message, mediationContext, cancellationToken});
return (Task<TResponse>)method.Invoke(instance, new object[] { message, mediationContext, cancellationToken });
}
}
}