public async Task <string> Watch <T>(string actorInterface, string eventName, string actorId, Action <ActorEvent <T> > handler)
{
var channel = ActorEventChannel(actorInterface, eventName, actorId);
SubscriptionHandler action = (string c, ref byte[] data) => {
var e = new ActorEvent <T>()
{
ActorInterface = actorInterface,
EventName = eventName,
EventData = _serializer.Deserialize <T>(data),
ActorId = c.Split(':').Last()
};
handler(e);
};
var guid = Guid.NewGuid().ToString();
_subscriptions[guid] = new PubSubSubscription()
{
Channel = channel, Handler = action
};
await _pubsub.Subscribe(channel, action);
return(guid);
}
public static async Task <TResponse> RequestAsync <TRequest, TResponse>(this IPubSub pubsub, TRequest message, TimeSpan timeout, bool self = true)
{
var request = new Request <TRequest> {
Body = message, CorrelationId = Guid.NewGuid()
};
IDisposable subscription = null;
try
{
var receiveTask = new TaskCompletionSource <TResponse>(TaskCreationOptions.RunContinuationsAsynchronously);
subscription = pubsub.Subscribe <Response <TResponse> >(response =>
{
if (response.CorrelationId == request.CorrelationId)
{
receiveTask.SetResult(response.Body);
}
});
Task.Run(() => pubsub.Publish(request, self));
using (var cts = new CancellationTokenSource(timeout))
{
return(await receiveTask.Task.WithCancellation(cts.Token));
}
}
finally
{
subscription?.Dispose();
}
}
public async Task Should_write_to_store_with_previous_version()
{
InvalidateMessage message = null;
pubSub.Subscribe <InvalidateMessage>(m =>
{
message = m;
});
A.CallTo(() => snapshotStore.ReadAsync(key))
.Returns((123, 13));
var actualObject = await sut.GetSingleAsync <MyStatefulObject, string>(key);
Assert.Same(statefulObject, actualObject);
Assert.Equal(123, statefulObject.State);
statefulObject.SetState(456);
await statefulObject.WriteStateAsync();
A.CallTo(() => snapshotStore.WriteAsync(key, 456, 13, 14))
.MustHaveHappened();
Assert.NotNull(message);
Assert.Equal(key, message.Key);
}
public async Task Should_write_to_store_with_previous_etag()
{
var etag = Guid.NewGuid().ToString();
InvalidateMessage message = null;
pubSub.Subscribe <InvalidateMessage>(m =>
{
message = m;
});
A.CallTo(() => store.ReadAsync <int>(key))
.Returns((123, etag));
var actual = await sut.GetAsync <MyStatefulObject, int>(key);
Assert.Same(state, actual);
Assert.Equal(123, state.State);
state.SetState(456);
await state.WriteStateAsync();
A.CallTo(() => store.WriteAsync(key, 456, etag, A <string> .That.Matches(x => x != null)))
.MustHaveHappened();
Assert.NotNull(message);
Assert.Equal(key, message.Key);
}
public async Task Should_write_to_store_with_previous_position()
{
InvalidateMessage message = null;
pubSub.Subscribe <InvalidateMessage>(m =>
{
message = m;
});
SetupEventStore(3);
var actualObject = await sut.GetSingleAsync <MyStatefulObject>(key);
Assert.Same(statefulObject, actualObject);
await statefulObject.WriteEventsAsync(new MyEvent(), new MyEvent());
await statefulObject.WriteEventsAsync(new MyEvent(), new MyEvent());
A.CallTo(() => eventStore.AppendEventsAsync(A <Guid> .Ignored, key, 2, A <ICollection <EventData> > .That.Matches(x => x.Count == 2)))
.MustHaveHappened();
A.CallTo(() => eventStore.AppendEventsAsync(A <Guid> .Ignored, key, 4, A <ICollection <EventData> > .That.Matches(x => x.Count == 2)))
.MustHaveHappened();
Assert.NotNull(message);
Assert.Equal(key, message.Key);
}
public override void InitializePresenter(dynamic context)
{
_view = (IQueryWindowControl)context.QueryWindowControl;
_view.Presenter = this;
_pubsub = context.PubSub;
_pubsub.Subscribe(this, Constants.SubscriptionTypes.THEME_CHANGE);
TabIndexReference = (int)context.TabIndexReference;
}
public void InitializePresenter(dynamic context)
{
_context = context;
_view = (IActionLogForm)context.ActionLogForm;
_view.Presenter = this;
_pubsub = context.PubSub;
_pubsub.Subscribe(this, Constants.SubscriptionTypes.THEME_CHANGE);
}
public void InitializePresenter(dynamic context)
{
_context = context;
_view = (IMainForm)context.MainForm;
_view.Presenter = this;
_pubsub = context.PubSub;
_pubsub.Subscribe(this, Constants.SubscriptionTypes.THEME_CHANGE);
InitializeTransactionCache();
}
public void Initialize()
{
pubSubSubscription = pubSub.Subscribe <InvalidateMessage>(m =>
{
lock (lockObject)
{
statesCache.Remove(m.Key);
}
});
}
public InvalidatingMemoryCache(IMemoryCache inner, IPubSub invalidator)
{
Guard.NotNull(inner, nameof(inner));
Guard.NotNull(invalidator, nameof(invalidator));
this.inner = inner;
this.invalidator = invalidator;
invalidator.Subscribe(ChannelName, inner.Remove);
}
public static IDisposable ReceiveAsync <TRequest, TResponse>(this IPubSub pubsub, Func <TRequest, Task <TResponse> > callback, bool self = true)
{
return(pubsub.Subscribe <Request <TRequest> >(async x =>
{
var response = await callback(x.Body);
pubsub.Publish(new Response <TResponse> {
CorrelationId = x.CorrelationId, Body = response
}, true);
}));
}
public InvalidatingMemoryCache(IMemoryCache inner, IPubSub invalidator)
{
Guard.NotNull(inner, nameof(inner));
Guard.NotNull(invalidator, nameof(invalidator));
this.inner = inner;
this.invalidator = invalidator;
subscription = invalidator.Subscribe <InvalidateMessage>(m =>
{
inner.Remove(m.CacheKey);
});
}
public void Should_send_invalidation_message_on_refresh()
{
InvalidateMessage message = null;
pubSub.Subscribe <InvalidateMessage>(m =>
{
message = m;
});
sut.Synchronize <MyStatefulObject, string>(key);
Assert.NotNull(message);
Assert.Equal(key, message.Key);
}
/// <summary>
/// Subscribes to a stream of messages that match a .NET type.
/// </summary>
/// <typeparam name="T">The type to subscribe to</typeparam>
/// <param name="pubSub">The pubSub instance</param>
/// <param name="subscriptionId">
/// A unique identifier for the subscription. Two subscriptions with the same subscriptionId
/// and type will get messages delivered in turn. This is useful if you want multiple subscribers
/// to load balance a subscription in a round-robin fashion.
/// </param>
/// <param name="onMessage">
/// The action to run when a message arrives. When onMessage completes the message
/// receipt is Ack'd. All onMessage delegates are processed on a single thread so you should
/// avoid long running blocking IO operations. Consider using SubscribeAsync
/// </param>
/// <param name="cancellationToken">The cancellation token</param>
/// <returns>
/// An <see cref="ISubscriptionResult"/>
/// Call Dispose on it or on its <see cref="ISubscriptionResult.ConsumerCancellation"/> to cancel the subscription.
/// </returns>
public static ISubscriptionResult Subscribe <T>(
this IPubSub pubSub,
string subscriptionId,
Action <T> onMessage,
CancellationToken cancellationToken = default
)
{
Preconditions.CheckNotNull(pubSub, "pubSub");
return(pubSub.Subscribe(
subscriptionId,
onMessage,
c => { },
cancellationToken
));
}
/// <summary>
/// Subscribes to a stream of messages that match a .NET type.
/// Allows the subscriber to complete asynchronously.
/// </summary>
/// <typeparam name="T">The type to subscribe to</typeparam>
/// <param name="pubSub">The pubSub instance</param>
/// <param name="subscriptionId">
/// A unique identifier for the subscription. Two subscriptions with the same subscriptionId
/// and type will get messages delivered in turn. This is useful if you want multiple subscribers
/// to load balance a subscription in a round-robin fashion.
/// </param>
/// <param name="onMessage">
/// The action to run when a message arrives. onMessage can immediately return a Task and
/// then continue processing asynchronously. When the Task completes the message will be
/// Ack'd.
/// </param>
/// <param name="cancellationToken">The cancellation token</param>
/// <returns>
/// An <see cref="ISubscriptionResult"/>
/// Call Dispose on it or on its <see cref="ISubscriptionResult.ConsumerCancellation"/> to cancel the subscription.
/// </returns>
public static ISubscriptionResult Subscribe <T>(
this IPubSub pubSub,
string subscriptionId,
Func <T, Task> onMessage,
CancellationToken cancellationToken = default
)
{
Preconditions.CheckNotNull(pubSub, "pubSub");
return(pubSub.Subscribe <T>(
subscriptionId,
(m, c) => onMessage(m),
c => { },
cancellationToken
));
}
public void Subscribe(string recipient, Action <object> handler)
{
Guard.NotNullOrEmpty(recipient, nameof(recipient));
pubSub.Subscribe(ChannelName, json =>
{
var envelope = JsonConvert.DeserializeObject <Envelope>(json);
if (string.Equals(envelope.Recipient, recipient, StringComparison.OrdinalIgnoreCase))
{
var messageType = typeNameRegistry.GetType(envelope.PayloadType);
var messageBody = ReadJson(envelope.Payload, messageType);
handler?.Invoke(messageBody);
}
});
}
public async Task SubscribeAsync(Func <PunchyMessage, Task> onMessageAsync, string groupId, CancellationToken cancellationToken, params string[] topics)
{
if (onMessageAsync == null)
{
throw new ArgumentNullException(nameof(onMessageAsync));
}
if (groupId == null)
{
throw new ArgumentNullException(nameof(groupId));
}
if (!TopicNameHelpers.IsValid(groupId))
{
throw new ArgumentException(
$"The groupId must match regex pattern: '{TopicNameHelpers.TopicOrGroupIdValidationRegexPattern}'", nameof(groupId));
}
var messageHandler = new MessageHandler(onMessageAsync, pubSub, logger, configuration, groupId);
var retryerTopics = new List <string>();
foreach (var topic in topics)
{
if (!TopicNameHelpers.IsValid(topic))
{
throw new ArgumentException(
$"The topic name must match regex pattern: '{TopicNameHelpers.TopicOrGroupIdValidationRegexPattern}'. " +
$"Validation failed for '{topic}'.", nameof(topics));
}
if (!TopicNameHelpers.IsBadMessageTopic(topic))
{
for (int i = 0; i < configuration.LevelDelaysInSeconds.Length; i++)
{
retryerTopics.Add(TopicNameHelpers.BuildBadMessageTopicName(topic, i, groupId));
}
}
}
var subscription = pubSub.Subscribe(messageHandler, groupId, topics.Union(retryerTopics).ToArray());
messageHandler.Subscription = subscription;
await subscription.StartAsync(cancellationToken);
}
/// <summary>
/// Subscribes to a stream of messages that match a .NET type.
/// </summary>
/// <typeparam name="T">The type to subscribe to</typeparam>
/// <param name="pubSub">The pubSub instance</param>
/// <param name="subscriptionId">
/// A unique identifier for the subscription. Two subscriptions with the same subscriptionId
/// and type will get messages delivered in turn. This is useful if you want multiple subscribers
/// to load balance a subscription in a round-robin fashion.
/// </param>
/// <param name="onMessage">
/// The action to run when a message arrives. When onMessage completes the message
/// receipt is Ack'd. All onMessage delegates are processed on a single thread so you should
/// avoid long running blocking IO operations. Consider using SubscribeAsync
/// </param>
/// <param name="configure">
/// Fluent configuration e.g. x => x.WithTopic("uk.london")
/// </param>
/// <param name="cancellationToken">The cancellation token</param>
/// <returns>
/// An <see cref="ISubscriptionResult"/>
/// Call Dispose on it or on its <see cref="ISubscriptionResult.ConsumerCancellation"/> to cancel the subscription.
/// </returns>
public static ISubscriptionResult Subscribe <T>(
this IPubSub pubSub,
string subscriptionId,
Action <T> onMessage,
Action <ISubscriptionConfiguration> configure,
CancellationToken cancellationToken = default
)
{
Preconditions.CheckNotNull(pubSub, "pubSub");
var onMessageAsync = TaskHelpers.FromAction <T>((m, c) => onMessage(m));
return(pubSub.Subscribe(
subscriptionId,
onMessageAsync,
configure,
cancellationToken
));
}
public static async Task <TResponse> RequestAsync <TRequest, TResponse>(this IPubSub pubsub, TRequest message, TimeSpan timeout, bool self = true)
{
var request = new Request <TRequest> {
Body = message, CorrelationId = Guid.NewGuid()
};
IDisposable subscription = null;
try
{
var receiveTask = new TaskCompletionSource <TResponse>();
subscription = pubsub.Subscribe <Response <TResponse> >(response =>
{
if (response.CorrelationId == request.CorrelationId)
{
receiveTask.SetResult(response.Body);
}
});
Task.Run(() => pubsub.Publish(request, self));
var firstTask = await Task.WhenAny(receiveTask.Task, Task.Delay(timeout));
if (firstTask.Id != receiveTask.Task.Id)
{
throw new TaskCanceledException();
}
else
{
return(await receiveTask.Task);
}
}
finally
{
subscription?.Dispose();
}
}
public IDisposable Subscribe(Action handler)
{
return(invalidator.Subscribe(ChannelName, x => handler()));
}
public IDisposable Subscribe(Action <string> handler)
{
return(pubsub.Subscribe <EventNotification>(x => handler?.Invoke(x.StreamName)));
}
public void Init(IPubSub pubSub)
{
pubSub.Subscribe <FileReadProgressEvent>(ProgressUpdaterDelegate);
}
/// <summary>
/// 订阅
/// </summary>
/// <param name="channel"></param>
/// <param name="action"></param>
public void Subscribe(string channel, Action <string> action)
{
pubsub.Subscribe(channel, action);
}
public void PublishSimpleTest()
{
var recorder = new Recorder <int>();
_pubSub.Subscribe("/temperature", recorder.Handler);
_pubSub.Publish("/temperature", 25);
var expected = Tuple.Create("/temperature", 25);
recorder.Messages.Should()
.ContainSingle(tuple => Equals(tuple, expected));
}
public IDisposable Subscribe(Action <string> handler)
{
return(pubsub.Subscribe(ChannelName, x => handler?.Invoke(x)));
}
public void Subscribe(Action handler)
{
invalidator.Subscribe(ChannelName, x => handler());
}