private async Task <Guid> SubscribeAsync(Action <MultiMapEventHandlers <TKey, TValue> > events, Maybe <TKey> key, bool includeValues, object state)
{
if (events == null)
{
throw new ArgumentNullException(nameof(events));
}
var handlers = new MultiMapEventHandlers <TKey, TValue>();
events(handlers);
// 0: no entryKey
// 1: entryKey
var mode = key.Match(1, 0);
var keyv = key.ValueOrDefault();
var subscribeRequest = mode switch
{
0 => MultiMapAddEntryListenerCodec.EncodeRequest(Name, includeValues, Cluster.IsSmartRouting),
1 => MultiMapAddEntryListenerToKeyCodec.EncodeRequest(Name, ToData(keyv), includeValues, Cluster.IsSmartRouting),
_ => throw new NotSupportedException()
};
var subscription = new ClusterSubscription(
subscribeRequest,
ReadSubscribeResponse,
CreateUnsubscribeRequest,
ReadUnsubscribeResponse,
HandleEventAsync,
new MapSubscriptionState(mode, Name, handlers, state));
await Cluster.Events.InstallSubscriptionAsync(subscription).CfAwait();
return(subscription.Id);
}
private ValueTask HandleEventAsync(ClientMessage eventMessage, object state)
{
var sstate = ToSafeState <MapSubscriptionState>(state);
return(sstate.Mode switch
{
0 => MultiMapAddEntryListenerCodec.HandleEventAsync(eventMessage, HandleEntryEventAsync, state, LoggerFactory),
1 => MultiMapAddEntryListenerToKeyCodec.HandleEventAsync(eventMessage, HandleEntryEventAsync, state, LoggerFactory),
_ => throw new NotSupportedException()
});
private static Guid ReadSubscribeResponse(ClientMessage responseMessage, object state)
{
var sstate = ToSafeState <MapSubscriptionState>(state);
return(sstate.Mode switch
{
0 => MultiMapAddEntryListenerCodec.DecodeResponse(responseMessage).Response,
1 => MultiMapAddEntryListenerToKeyCodec.DecodeResponse(responseMessage).Response,
_ => throw new NotSupportedException()
});
public virtual string AddEntryListener(IEntryListener <K, V> listener, bool includeValue)
{
var request = MultiMapAddEntryListenerCodec.EncodeRequest(GetName(), includeValue, false);
DistributedEventHandler handler =
eventData => MultiMapAddEntryListenerCodec.AbstractEventHandler.Handle(eventData,
(key, value, oldValue, mergingValue, type, uuid, entries) =>
OnEntryEvent(key, value, oldValue, mergingValue, (EntryEventType)type, uuid, entries, includeValue, listener)
);
return(Listen(request, message => MultiMapAddEntryListenerCodec.DecodeResponse(message).response, handler));
}
public virtual string AddEntryListener(IEntryListener <TKey, TValue> listener, bool includeValue)
{
var listenerAdapter =
EntryListenerAdapter <TKey, TValue> .CreateAdapter(listener, GetContext().GetSerializationService());
var request = MultiMapAddEntryListenerCodec.EncodeRequest(GetName(), includeValue, IsSmart());
DistributedEventHandler handler =
eventData => MultiMapAddEntryListenerCodec.EventHandler.HandleEvent(eventData,
(key, value, oldValue, mergingValue, type, uuid, entries) =>
{
OnEntryEvent(key, value, oldValue, mergingValue, type, uuid, entries, listenerAdapter);
});
return(RegisterListener(request, message => MultiMapAddEntryListenerCodec.DecodeResponse(message).response,
id => MultiMapRemoveEntryListenerCodec.EncodeRequest(GetName(), id), handler));
}
private ValueTask HandleEventAsync(ClientMessage eventMessage, object state)
{
var sstate = ToSafeState <MapSubscriptionState>(state);
async ValueTask HandleEntryEventAsync(IData keyData, IData valueData, IData oldValueData, IData mergingValueData, int eventTypeData, Guid memberId, int numberOfAffectedEntries)
{
var eventType = (HDictionaryEventTypes)eventTypeData;
if (eventType == HDictionaryEventTypes.Nothing)
{
return;
}
var member = Cluster.Members.GetMember(memberId);
var key = LazyArg <TKey>(keyData);
var value = LazyArg <TValue>(valueData);
var oldValue = LazyArg <TValue>(oldValueData);
var mergingValue = LazyArg <TValue>(mergingValueData);
// ReSharper disable once ForeachCanBePartlyConvertedToQueryUsingAnotherGetEnumerator
foreach (var handler in sstate.Handlers)
{
if (handler.EventType.HasAll(eventType))
{
var task = handler switch
{
IDictionaryEntryEventHandler <TKey, TValue, IHMultiDictionary <TKey, TValue> > entryHandler => entryHandler.HandleAsync(this, member, key, value, oldValue, mergingValue, eventType, numberOfAffectedEntries),
IDictionaryEventHandler <TKey, TValue, IHMultiDictionary <TKey, TValue> > mapHandler => mapHandler.HandleAsync(this, member, numberOfAffectedEntries),
_ => throw new NotSupportedException()
};
await task.CAF();
}
}
}
return(sstate.Mode switch
{
0 => MultiMapAddEntryListenerCodec.HandleEventAsync(eventMessage, HandleEntryEventAsync, LoggerFactory),
1 => MultiMapAddEntryListenerToKeyCodec.HandleEventAsync(eventMessage, HandleEntryEventAsync, LoggerFactory),
_ => throw new NotSupportedException()
});
}
private async Task <Guid> SubscribeAsync(bool includeValues, TKey key, bool hasKey, Action <MultiDictionaryEventHandlers <TKey, TValue> > handle)
{
if (hasKey && key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (handle == null)
{
throw new ArgumentNullException(nameof(handle));
}
var handlers = new MultiDictionaryEventHandlers <TKey, TValue>();
handle(handlers);
// 0: no entryKey
// 1: entryKey
var mode = hasKey ? 1 : 0;
var subscribeRequest = mode switch
{
0 => MultiMapAddEntryListenerCodec.EncodeRequest(Name, includeValues, Cluster.IsSmartRouting),
1 => MultiMapAddEntryListenerToKeyCodec.EncodeRequest(Name, ToData(key), includeValues, Cluster.IsSmartRouting),
_ => throw new NotSupportedException()
};
var subscription = new ClusterSubscription(
subscribeRequest,
ReadSubscribeResponse,
CreateUnsubscribeRequest,
ReadUnsubscribeResponse,
HandleEventAsync,
new MapSubscriptionState(mode, Name, handlers));
await Cluster.Events.InstallSubscriptionAsync(subscription).CAF();
return(subscription.Id);
}
