public void RegisterSubscription(object instance)
{
Type type = instance.GetType();
object[] attributes = type.GetCustomAttributes(typeof(SubscribtionAttribute), false);
if (attributes.Length == 0)
{
throw new Exception("SubscriptionAttribute is missing");
}
foreach (MethodInfo method in type.GetMethods(BindingFlags.Public | BindingFlags.Instance))
{
object[] methodAttributes = method.GetCustomAttributes(typeof(MessageSubscriptionAttribute), false);
if (methodAttributes.Length == 0)
{
continue;
}
ParameterInfo[] parameterInfos = method.GetParameters();
if (parameterInfos.Length != 1)
{
throw new Exception(
"Method annotated by MessageSubscriptionAttribute must have exactly one parameter");
}
ParameterInfo parameterInfo = parameterInfos[0];
MessageSubscriptionAttribute messageSubscriptionAttribute = (MessageSubscriptionAttribute)methodAttributes[0];
Type parameterType = parameterInfo.ParameterType;
ICallHandler handler;
Type dataType;
MethodInfo m = method;
Action <object> action = o => m.Invoke(instance, new[] { o });
if (parameterType.IsGenericType && parameterType.GetGenericTypeDefinition() == typeof(BusMessage <>))
{
Type[] genericArguments = parameterType.GetGenericArguments();
dataType = genericArguments[0];
Type handlerType = typeof(BusMessageCallHandler <>).MakeGenericType(genericArguments);
handler = (ICallHandler)Activator.CreateInstance(handlerType, action);
}
else
{
dataType = parameterType;
handler = new ActionHandler <object>(action);
}
List <BusHeader> filters = new List <BusHeader>();
object[] filterAttributes = parameterInfo.GetCustomAttributes(typeof(HeaderFilterAttribute), true);
foreach (HeaderFilterAttribute filterAttribute in filterAttributes)
{
filters.Add(new BusHeader(filterAttribute.Name, filterAttribute.Value));
}
Subscribe(dataType, handler, messageSubscriptionAttribute.RegisterHierarchy, filters);
}
}
public bool Subscribe <TData>(Action <TData> callback, bool hierarchy, IEnumerable <BusHeader> filter)
{
ActionHandler <TData> actionHandler = new ActionHandler <TData>(callback);
return(_helper.Subscribe(typeof(TData), actionHandler, hierarchy, filter));
}
public bool Subscribe(Type dataType, Action <object> callback, bool hierarchy, IEnumerable <BusHeader> filter)
{
ActionHandler <object> actionHandler = new ActionHandler <object>(callback);
return(_helper.Subscribe(dataType, actionHandler, hierarchy, filter));
}
public void RegisterSubscription(object instance)
{
Type type = instance.GetType();
object[] attributes = type.GetCustomAttributes(typeof(SubscribtionAttribute), false);
if (attributes.Length == 0)
{
throw new Exception("SubscriptionAttribute is missing");
}
foreach (MethodInfo method in type.GetMethods(BindingFlags.Public | BindingFlags.Instance))
{
object[] methodAttributes = method.GetCustomAttributes(typeof (MessageSubscriptionAttribute), false);
if (methodAttributes.Length == 0)
{
continue;
}
ParameterInfo[] parameterInfos = method.GetParameters();
if (parameterInfos.Length != 1)
{
throw new Exception(
"Method annotated by MessageSubscribtionAttribute must have exactly one parameter");
}
ParameterInfo parameterInfo = parameterInfos[0];
MessageSubscriptionAttribute messageSubscriptionAttribute = (MessageSubscriptionAttribute) methodAttributes[0];
Type parameterType = parameterInfo.ParameterType;
ICallHandler handler;
Type dataType;
MethodInfo m = method;
Action<object> action = o => m.Invoke(instance, new[] {o});
if (parameterType.IsGenericType && parameterType.GetGenericTypeDefinition() == typeof (BusMessage<>))
{
Type[] genericArguments = parameterType.GetGenericArguments();
dataType = genericArguments[0];
Type handlerType = typeof (BusMessageHandler<>).MakeGenericType(genericArguments);
handler = (ICallHandler) Activator.CreateInstance(handlerType, action);
}
else
{
dataType = parameterType;
handler = new ActionHandler(action);
}
List<BusHeader> filters = new List<BusHeader>();
object[] filterAttributes = parameterInfo.GetCustomAttributes(typeof (HeaderFilterAttribute), true);
foreach (HeaderFilterAttribute filterAttribute in filterAttributes)
{
filters.Add(new BusHeader(filterAttribute.Name, filterAttribute.Value));
}
Subscribe(dataType, handler, messageSubscriptionAttribute.RegisterHierarchy, filters);
}
}
