private void ProcessMultiHandler(MethodInfo method, Type paramType, BusRegistry registry,
IEnumerable <HandlesAttribute> handlesAttributes)
{
ValidateReturnTypeIsTask(method);
foreach (var attr in handlesAttributes)
{
ValidateParameterIsAssignableFromType(paramType, attr.Type, method);
if (EventType.IsAssignableFrom(paramType))
{
registry.AddEventSubscriber(attr.Type, method);
}
else if (CommandType.IsAssignableFrom(paramType))
{
registry.AddCommandHandler(attr.Type, method);
}
}
}
public BusRegistry Bootstrap()
{
var registry = new BusRegistry();
var methods = HandlerTypes.SelectMany(t => t.GetMethods().Where(m => m.IsPublic));
foreach (var method in methods)
{
var mParams = method.GetParameters();
if (mParams.Count() != 1)
{
continue;
}
var paramType = mParams.First().ParameterType;
if (CommandType.IsAssignableFrom(paramType))
{
ProcessCommandHandlerMethod(method, paramType, registry);
}
else if (EventType.IsAssignableFrom(paramType))
{
ProcessEventHanlderMethod(method, paramType, registry);
}
else if (paramType.IsAssignableToGenericType(GenericType))
{
ProcessQueryHanlderMethod(method, paramType, registry);
}
var handlesAttributes = method.GetCustomAttributes <HandlesAttribute>();
if (handlesAttributes.Any())
{
ProcessMultiHandler(method, paramType, registry, handlesAttributes);
}
}
foreach (var validator in ValidtorTypes)
{
registry.AddCommandValidator(
validator.GetInterfaces()
.Single(i => i.IsGenericType && i.GetGenericTypeDefinition() == ValidatorType)
.GenericTypeArguments.First(), validator);
}
return(registry);
}
private void ProcessQueryHanlderMethod(MethodInfo methodInfo, Type methodArgType, BusRegistry registry)
{
ValidateReturnTypeIsTaskOf(methodInfo, methodArgType.BaseType.GetGenericArguments()[0]);
registry.AddQueryHandler(methodArgType, methodInfo);
}
private void ProcessEventHanlderMethod(MethodInfo methodInfo, Type methodArgType, BusRegistry registry)
{
ValidateReturnTypeIsTask(methodInfo);
registry.AddEventSubscriber(methodArgType, methodInfo);
}
private void ProcessCommandHandlerMethod(MethodInfo methodInfo, Type methodArgType, BusRegistry registry)
{
ValidateReturnTypeIsTask(methodInfo);
registry.AddCommandHandler(methodArgType, methodInfo);
}