public void Publish(PubSubMessage e)
{
if (SubscriptionManager.Subscribers == null)
{
return;
}
Type type = typeof(IPublishingService);
MethodInfo publishMethodInfo = type.GetMethod("Publish");
if (SubscriptionManager.Subscribers.Count > 0)
{
foreach (var subscriber in SubscriptionManager.Subscribers)
{
try
{
publishMethodInfo.Invoke(subscriber, new object[] { e });
Console.WriteLine("Message {0} send to subscriber", e.MessageNum);
}
catch
{
Console.WriteLine("Error publishing to subscriber");
}
}
}
else
{
Console.WriteLine("No subscribers for message {0}", e.MessageNum);
}
}
public async Task <XtResult <TMessage> > PublishAsync <TMessage>(TMessage message)
where TMessage : class, new()
{
PublisherSocket publisherSocket = null;
try
{
publisherSocket = new PublisherSocket();
publisherSocket.Connect(_configuration.Address());
return(await Task.Run(() =>
{
try
{
var msg = new PubSubMessage <TMessage>(_configuration, message);
publisherSocket.SendMultipartMessage(msg);
}
catch (System.Exception ex)
{
return XtResult <TMessage> .Failed(ex, "publish");
}
return XtResult <TMessage> .Success(message, "publish");
}));
}
catch (System.Exception ex)
{
return(XtResult <TMessage> .Failed(ex, "publish"));
}
finally
{
publisherSocket?.Dispose();
}
}
async Task <PubSubMessage> RunOnOutputQueue(string subscriberId,
Func <IReliableQueue <PubSubMessage>, ITransaction, Task <ConditionalValue <PubSubMessage> > > callOnQueue)
{
var queueName = $"queue_{subscriberId}";
var queue = await this.StateManager.GetOrAddAsync <IReliableQueue <PubSubMessage> >(queueName).ConfigureAwait(false);
var lst = await this.StateManager.GetOrAddAsync <IReliableDictionary <string, bool> >("queueList").ConfigureAwait(false);
PubSubMessage msg = null;
using (var tx = this.StateManager.CreateTransaction())
{
if (!await lst.ContainsKeyAsync(tx, queueName).ConfigureAwait(false))
{
await lst.AddAsync(tx, queueName, true).ConfigureAwait(false);
}
var msgCV = await callOnQueue(queue, tx).ConfigureAwait(false);
//var msgCV = await q.TryDequeueAsync(tx).ConfigureAwait(false);
if (msgCV.HasValue)
{
msg = msgCV.Value;
}
await tx.CommitAsync().ConfigureAwait(false);
}
ServiceEventSource.Current.ServiceMessage(this.Context, $"DEQUEUE FOR {subscriberId} : {msg?.Message}");
return(msg);
}
public void Receive(PubSubMessage m)
{
switch (m.Topic)
{
case ETopic.NetworkModelChanged:
HandleNetworkModelChange((NetworkModelChanged)m);
break;
case ETopic.MeasurementValuesChanged:
HandleMeasurementValuesChange((MeasurementValuesChanged)m);
break;
case ETopic.TopologyChanged:
HandleTopologyChange((TopologyChanged)m);
break;
case ETopic.LoadFlowChanged:
HandleLoadFlowChange((LoadFlowChanged)m);
break;
case ETopic.MarkedSwitchesChanged:
HandleMarkedSwitchesChange((MarkedSwitchesChanged)m);
break;
}
}
//Notify all currency pair subscribers with the new update
static public void Notify(PubSubMessage msg)
{
try
{
//Get subscribers
var sublist = GetSubscribers(msg.CurrencyPairName);
if (sublist == null)
{
return;
}
//Open threads equal to the number of subscribers
sublist.AsParallel().ForAll(callback =>
{
if (((ICommunicationObject)callback).State
== CommunicationState.Opened)
{
callback.Publish(msg);
}
else
{
sublist.Remove(callback);
}
}
);
}
catch (Exception ex)
{
//Log Exception
throw ex;
}
}
private PubSubMessage PrepareEvent()
{
PubSubMessage msg = new PubSubMessage();
msg.CurrencyPairName = txtPairName.Text;
msg.CurrencyPairData = txtPairData.Text;
return(msg);
}
private void OnDisplayEvent(DisplayEventBase displayEvent,
Envelope request,
IJupyterMessageSender jupyterMessageSender)
{
var transient = CreateTransient(displayEvent.ValueId);
var formattedValues = displayEvent
.FormattedValues
.ToDictionary(k => k.MimeType, v => v.Value);
var value = displayEvent.Value;
PubSubMessage dataMessage = null;
CreateDefaultFormattedValueIfEmpty(formattedValues, value);
switch (displayEvent)
{
case DisplayedValueProduced _:
dataMessage = new DisplayData(
transient: transient,
data: formattedValues);
break;
case DisplayedValueUpdated _:
dataMessage = new UpdateDisplayData(
transient: transient,
data: formattedValues);
break;
case ReturnValueProduced _:
dataMessage = new ExecuteResult(
_executionCount,
transient: transient,
data: formattedValues);
break;
case StandardOutputValueProduced _:
dataMessage = Stream.StdOut(GetPlainTextValueOrDefault(formattedValues, value?.ToString() ?? string.Empty));
break;
case StandardErrorValueProduced _:
dataMessage = Stream.StdErr(GetPlainTextValueOrDefault(formattedValues, value?.ToString() ?? string.Empty));
break;
default:
throw new ArgumentException("Unsupported event type", nameof(displayEvent));
}
var isSilent = ((ExecuteRequest)request.Content).Silent;
if (!isSilent)
{
// send on io
jupyterMessageSender.Send(dataMessage);
}
}
public void Publish(PubSubMessage msg)
{
if (msg != null)
{
int itemNum = (lstData.Items.Count < 1) ? 0 : lstData.Items.Count;
lstData.Items.Add(itemNum.ToString());
lstData.Items[itemNum].SubItems.AddRange(new string[] { msg.CurrencyPairName.ToString(), msg.CurrencyPairData });
}
}
// POST api/tenantId/topicName
//public async Task<HttpResponseMessage> Post(string tenantId, string topicName)
//{
// HttpResponseMessage responseMessage = new HttpResponseMessage(HttpStatusCode.InternalServerError);
// // Assuming the message body will contain the content for the data to put to the topic.
// string messageBody = await this.Request.Content.ReadAsStringAsync();
// HttpServiceUriBuilder builder = new HttpServiceUriBuilder()
// {
// PortNumber = await GetReverseProxyPortAsync(),
// ServiceName = $"{tenantId}/{TenantApplicationTopicServiceName}/{topicName}/api/"
// };
// HttpResponseMessage topicResponseMessage;
// using (HttpClient httpClient = new HttpClient())
// {
// HttpContent postContent = new StringContent(messageBody);
// postContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
// topicResponseMessage = await httpClient.PostAsync(builder.Build(), postContent);
// }
// if (topicResponseMessage != null && topicResponseMessage.IsSuccessStatusCode)
// {
// responseMessage.StatusCode = HttpStatusCode.Accepted;
// var msg = await topicResponseMessage.Content.ReadAsStringAsync();
// System.Diagnostics.Debug.WriteLine($"Received response of '{msg}'.");
// }
// else
// {
// responseMessage.StatusCode = topicResponseMessage?.StatusCode ?? HttpStatusCode.InternalServerError;
// responseMessage.ReasonPhrase = topicResponseMessage?.ReasonPhrase ?? "Internal error";
// }
// return responseMessage;
//}
// GET api/tenantId/topicName/subscriber
public async Task <HttpResponseMessage> Get(string tenantId, string topicName, string subscriberName)
{
try
{
ServiceEventSource.Current.Message($"[Router] Message read for {tenantId}/{topicName}/{subscriberName}");
HttpServiceUriBuilder builder = new HttpServiceUriBuilder()
{
PortNumber = await FrontEndHelper.FrontEndHelper.GetReverseProxyPortAsync(),
ServiceName = $"{tenantId}/{TenantApplicationTopicServiceName}/{topicName}/{subscriberName}/api"
};
HttpResponseMessage msg;
PubSubMessage pubSubMsg = null;
using (HttpClient httpClient = new HttpClient())
{
string pubSubMsgJson = await httpClient.GetStringAsync(builder.Build());
if (!String.IsNullOrEmpty(pubSubMsgJson))
{
pubSubMsg = JsonConvert.DeserializeObject <PubSubMessage>(pubSubMsgJson);
}
}
HttpResponseMessage responseMessage = new HttpResponseMessage(HttpStatusCode.OK);
if (pubSubMsg != null)
{
string msgJson = JsonConvert.SerializeObject(pubSubMsg.Message,
new JsonSerializerSettings
{
Formatting = Formatting.Indented
});
responseMessage.Content = new StringContent(msgJson);
}
else
{
responseMessage.StatusCode = HttpStatusCode.NoContent;
}
return(responseMessage);
//using remoting
//var topicSvc = ServiceProxy.Create<ISubscriberService>(new Uri($"fabric:/{tenantId}/{TenantApplicationTopicServiceName}/{topicName}/{subscriberName}"));
//var msg = await topicSvc.Pop();
//string msgJson = JsonConvert.SerializeObject(msg.Content,
// new JsonSerializerSettings
// {
// Formatting = Formatting.Indented
// });
//responseMessage.Content = new StringContent(msgJson);
}
catch (Exception ex)
{
return(new HttpResponseMessage(HttpStatusCode.InternalServerError));
}
}
public Task Publish(PubSubMessage message)
{
Subscription subscription = new Subscription();
using (var publisher = new Publisher(subscription.Topic, subscription.ConnectionString))
{
publisher.SendMessage(message);
}
return(Task.CompletedTask);
}
private static void SendOneMessage()
{
PubSubMessage message = new PubSubMessage()
{
MessageNum = _messageNum++,
Content = "[Message content here]"
};
Thread.Sleep(1000); // Pause one seconnds between messages
_publishingClient.Publish(message);
}
private void NotifySubscriber(ISubscription subscriber, PubSubMessage message)
{
try
{
subscriber.Receive(message);
}
catch
{
// This normally happens when the subscriber is closed without un-subscribing
}
}
private static void SendDisplayData(PubSubMessage messageMessage,
Envelope request,
IJupyterMessageSender ioPubChannel)
{
var isSilent = ((ExecuteRequest)request.Content).Silent;
if (!isSilent)
{
// send on io
ioPubChannel.Send(messageMessage);
}
}
/// <summary>
/// Adds the new message to list.
/// </summary>
/// <param name="message">The message.</param>
private void AddNewMessageToList(PubSubMessage message)
{
if (message != null)
{
var plainMessage = this.SimpleEncryption.Decrypt(message.EventData);
var itemNum = (this.lstEvents.Items.Count < 1) ? 0 : this.lstEvents.Items.Count;
this.lstEvents.Items.Add((itemNum + 1).ToString());
this.lstEvents.Items[itemNum].SubItems.AddRange(new string[] { message.TopicName.ToString(), plainMessage, message.EventDate.ToString() });
this.EventsCount++;
}
}
public void Receive(PubSubMessage m)
{
switch (m.Topic)
{
case ETopic.NetworkModelChanged:
DownloadModel();
break;
case ETopic.TopologyChanged:
TopologyUpdated();
break;
}
}
public async Task <HttpResponseMessage> Post(string tenantId, string topicName, string message)
{
try
{
ServiceEventSource.Current.Message($"[Router] New Message received for {tenantId}/{topicName}: {message}");
HttpServiceUriBuilder builder = new HttpServiceUriBuilder()
{
PortNumber = await FrontEndHelper.FrontEndHelper.GetReverseProxyPortAsync(),
ServiceName = $"{tenantId}/{TenantApplicationTopicServiceName}/{topicName}/api"
};
HttpResponseMessage msg;
PubSubMessage pubsubMessage = new PubSubMessage()
{
Message = message
};
using (HttpClient httpClient = new HttpClient())
{
string msgJson = JsonConvert.SerializeObject(pubsubMessage,
new JsonSerializerSettings
{
Formatting = Formatting.Indented
});
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));//ACCEPT header
msg = await httpClient.PostAsync(
builder.Build(),
new StringContent(msgJson, Encoding.UTF8, "application/json")
);
}
HttpResponseMessage responseMessage = new HttpResponseMessage(HttpStatusCode.OK);
if (!msg.IsSuccessStatusCode)
{
responseMessage.StatusCode = HttpStatusCode.InternalServerError;
}
return(responseMessage);
//using remoting
//var msg = new PubSubMessage() { Message = message };
//var topicSvc = ServiceProxy.Create<ITopicService>(new Uri($"fabric:/{tenantId}/{TenantApplicationTopicServiceName}/{topicName}"));
//await topicSvc.Push(msg);
}
catch (Exception ex)
{
return(new HttpResponseMessage(HttpStatusCode.InternalServerError));
}
}
private bool TryApplyTransaction()
{
try
{
Thread.Sleep(TimeSpan.FromSeconds(20));
TransactionManagerServiceProxy proxyForTM = new TransactionManagerServiceProxy(ConfigurationManager.AppSettings["TM"]);
bool pom = false;
while (!pom)
{
pom = proxyForTM.StartEnlist().GetAwaiter().GetResult();
}
proxyForTM.Enlist().GetAwaiter().GetResult();
NDSModelProxy proxyForScada = new NDSModelProxy(ConfigurationManager.AppSettings["SCADAM"]);
CEModelProxy proxyForCE = new CEModelProxy(ConfigurationManager.AppSettings["CEM"]);
bool success = false;
if (proxyForScada.ModelUpdate(affectedEntities).GetAwaiter().GetResult())
{
success = true;
}
if (proxyForCE.ModelUpdate(affectedEntities).GetAwaiter().GetResult())
{
success = true;
}
proxyForTM.EndEnlist(success).GetAwaiter().GetResult();
try
{
var subscription = new Subscription();
var publisher = new Publisher(subscription.Topic, subscription.ConnectionString);
var dtos = DtoConverter.Convert(networkDataModelCopy);
var json = JsonTool.Serialize(new ModelUpdateEvent(dtos));
var msg = new PubSubMessage()
{
Content = json,
ContentType = ContentType.NMS_UPDATE,
Sender = Sender.NMS
};
publisher.SendMessage(msg).ConfigureAwait(false).GetAwaiter().GetResult();
}
catch { }
return(true);
}
catch (Exception)
{
return(false);
}
}
/// <summary>
/// Enqueue a new message in the topic
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public async Task Push(PubSubMessage msg)
{
var lst = await this.StateManager.GetOrAddAsync <IReliableDictionary <string, bool> >("queueList").ConfigureAwait(false);
var inputQueue = await this.StateManager.GetOrAddAsync <IReliableConcurrentQueue <PubSubMessage> >("inputQueue");
using (var tx = this.StateManager.CreateTransaction())
{
await inputQueue.EnqueueAsync(tx, msg).ConfigureAwait(false);
await tx.CommitAsync().ConfigureAwait(false);
}
ServiceEventSource.Current.ServiceMessage(this.Context, $"INPUT QUEUE: {msg.Message}");
}
/// <summary>
/// Publishes the specified e.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="topic">The topic.</param>
public void Publish(PubSubMessage message, string topic)
{
this.proxyManager.NotifyHost(string.Format("New message is published for the topic {0}.", topic));
var subscribers = this.GetSubscribers(topic);
if (subscribers != null)
{
foreach (var subscriber in subscribers)
{
this.NotifySubscriber(subscriber, message);
}
}
}
void Publish(PubSubMessage msg)
{
Client <IPublishing> pubClient = new Client <IPublishing>("publishingEndpoint");
pubClient.Connect();
pubClient.Call <bool>(pub =>
{
pub.Publish(msg);
return(true);
}, out _);
pubClient.Disconnect();
}
private void InnerOnChange(PubSubMessage message)
{
lock (this) {
if (!monitorDisposed)
{
this.filter.UnregisterForTopics(this.InnerOnChange, topics);
try {
base.OnChanged(message);
} catch (Exception ex) {
OSTrace.Error($"Error notifing PubSubMonitor change for topic: {UniqueId}. Possible due to Application Unload.", ex);
}
}
}
}
public async Task <PubSubMessage> Pop()
{
PubSubMessage msg = null;
var queue = await this.StateManager.GetOrAddAsync <IReliableQueue <PubSubMessage> >("messages").ConfigureAwait(false);
using (var tx = this.StateManager.CreateTransaction())
{
var msgCV = await queue.TryDequeueAsync(tx).ConfigureAwait(false);
if (msgCV.HasValue)
{
msg = msgCV.Value;
}
await tx.CommitAsync().ConfigureAwait(false);
}
return(msg);
}
public async Task Push(PubSubMessage msg)
{
ServiceEventSource.Current.Message($"Topic Push called: {msg.Message}");
msg.MessageID = Guid.NewGuid(); // generating a new unique ID for the incoming message.
var lst = await this.stateManager.GetOrAddAsync <IReliableDictionary <string, bool> >("queueList").ConfigureAwait(false);
var inputQueue = await this.stateManager.GetOrAddAsync <IReliableQueue <PubSubMessage> >("inputQueue");
using (var tx = this.stateManager.CreateTransaction())
{
await inputQueue.EnqueueAsync(tx, msg).ConfigureAwait(false);
await tx.CommitAsync().ConfigureAwait(false);
}
//ServiceEventSource.Current.ServiceMessage(context, $"Input queue: {msg.Message}");
}
// POST api/values
public async Task Push([FromBody] string value)
{
string name =
FabricRuntime.GetActivationContext()
.GetConfigurationPackageObject("Config")
.Settings
.Sections["WebApiConfigSection"]
.Parameters["TopicName"]
.Value;
var msg = new PubSubMessage()
{
Message = value
};
var stockSvc = ServiceProxy.Create <ITopicService>(new Uri("fabric:/PubSubTransactionPoC/" + name),
new ServicePartitionKey(0));
await stockSvc.Push(msg);
}
static async Task Main(string[] args)
{
Console.WriteLine("Starting");
var RabbitMqUserName = "******";
var RabbitMqPassword = "******";
using (var bus = RabbitHutch.CreateBus($"host=rabbitmq;username={RabbitMqUserName};password={RabbitMqPassword}"))
{
int I = 1;
while (true)
{
var PubSubMsg = new PubSubMessage($"Pub/Sub message {I}");
var QueueMsg = new QueueMessage($"Queue message {I}");
try
{
bus.PubSub.Publish(PubSubMsg);
Console.WriteLine($"Published message: '{PubSubMsg.Text}'");
}
catch
{
Console.WriteLine($"Erro publishing message: '{PubSubMsg.Text}'");
}
try
{
bus.PubSub.Publish(QueueMsg);
Console.WriteLine($"Published message: '{QueueMsg.Text}'");
}
catch
{
Console.WriteLine($"Erro publishing message: '{QueueMsg.Text}'");
}
await Task.Delay(500);
I++;
}
}
}
public void Publish(PubSubMessage m)
{
lock (clients)
{
foreach (KeyValuePair <IPubSubClient, List <ETopic> > client in clients)
{
if (!client.Value.Contains(m.Topic))
{
continue;
}
try
{
client.Key.Receive(m);
}
catch (Exception e)
{ }
}
}
}
private void btnPublish_Click(object sender, EventArgs e)
{
try
{
string pairName = txtPairName.Text.Trim();
if (string.IsNullOrEmpty(pairName))
{
MessageBox.Show("Please Enter a Pair Name");
return;
}
PubSubMessage alertData = PrepareEvent();
_PubProxy.Publish(alertData);
MessageBox.Show("Message Sent");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public async Task <PubSubMessage> Pop()
{
PubSubMessage msg = null;
var queue = await this.stateManager.GetOrAddAsync <IReliableQueue <PubSubMessage> >("messages").ConfigureAwait(false);
using (var tx = this.stateManager.CreateTransaction())
{
var msgCV = await queue.TryDequeueAsync(tx).ConfigureAwait(false);
if (msgCV.HasValue)
{
msg = msgCV.Value;
ServiceEventSource.Current.Message($"Subscribed Pop called. Message found: {msg.Message}");
}
else
{
ServiceEventSource.Current.Message($"Subscribed Pop called. No Messages available");
}
await tx.CommitAsync().ConfigureAwait(false);
}
return(msg);
}
/// <summary>
/// Enqueue a new message in the topic
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public async Task Push(PubSubMessage msg)
{
var lst = await this.StateManager.GetOrAddAsync <IReliableDictionary <string, bool> >("queueList").ConfigureAwait(false);
using (var tx = this.StateManager.CreateTransaction())
{
IAsyncEnumerable <KeyValuePair <string, bool> > asyncEnumerable = await lst.CreateEnumerableAsync(tx);
using (IAsyncEnumerator <KeyValuePair <string, bool> > asyncEnumerator = asyncEnumerable.GetAsyncEnumerator())
{
while (await asyncEnumerator.MoveNextAsync(CancellationToken.None))
{
var queue = await this.StateManager.GetOrAddAsync <IReliableQueue <PubSubMessage> >(asyncEnumerator.Current.Key).ConfigureAwait(false);
await queue.EnqueueAsync(tx, msg);
}
}
await tx.CommitAsync().ConfigureAwait(false);
ServiceEventSource.Current.ServiceMessage(this.Context, $"ENQUEUE: {msg.Message}");
}
}
private void UpdateGraph()
{
if (points > 0)
{
CeGraphicalEvent newGraph = new CeGraphicalEvent();
newGraph.PumpsValues.Pump1.XAxes = graph.PumpsValues.Pump1.XAxes.Take(indexGraph).ToList();
newGraph.PumpsValues.Pump1.YAxes = graph.PumpsValues.Pump1.YAxes.Take(indexGraph).ToList();
newGraph.PumpsValues.Pump2.XAxes = graph.PumpsValues.Pump2.XAxes.Take(indexGraph).ToList();
newGraph.PumpsValues.Pump2.YAxes = graph.PumpsValues.Pump2.YAxes.Take(indexGraph).ToList();
newGraph.PumpsValues.Pump3.XAxes = graph.PumpsValues.Pump3.XAxes.Take(indexGraph).ToList();
newGraph.PumpsValues.Pump3.YAxes = graph.PumpsValues.Pump3.YAxes.Take(indexGraph).ToList();
var json = JsonTool.Serialize <CeGraphicalEvent>(newGraph);
PubSubMessage ev = new PubSubMessage()
{
ContentType = ContentType.CE_HISTORY_GRAPH,
Content = json,
Sender = Sender.CE
};
pubsub.SendMessage(ev).ConfigureAwait(false);
}
}
