public static async Task <SubscriptionClient> GetSubscriptionClient(TopicSetting topicDetail)
{
SubscriptionClient subscriptionClient = null;
try
{
var key = topicDetail.TopicName + Constants.COLON + topicDetail.SubscriptionName;
if (!_messagingFactories.ContainsKey(key))
{
key = topicDetail.TopicName + Constants.COLON + topicDetail.SubscriptionName;
if (!_messagingFactories.ContainsKey(key))
{
var messagingFactory = GetMessageFactory();
if (!await _ns.SubscriptionExistsAsync(topicDetail.TopicName, topicDetail.SubscriptionName)) // TODO :
{
SubscriptionDescription subscriptionDescription = new SubscriptionDescription(topicDetail.TopicName, topicDetail.SubscriptionName);
subscriptionDescription.EnableBatchedOperations = true;
await _ns.CreateSubscriptionAsync(subscriptionDescription);
}
subscriptionClient = messagingFactory.CreateSubscriptionClient(topicDetail.TopicName, topicDetail.SubscriptionName, topicDetail.RecieveMode);
subscriptionClient.PrefetchCount = topicDetail.PrefetchCount;
_messagingFactories[key] = Tuple.Create <MessagingFactory, SubscriptionClient>(messagingFactory, subscriptionClient);
LogManager.GetCurrentClassLogger().Info("ServiceBusManager created SubscriptionClient:{@SubscriptionName} for TopicName:{@TopicName} in RecieveMode:{@ReceiveMode} with key:{@Key}", topicDetail.SubscriptionName, topicDetail.TopicName, topicDetail.RecieveMode, key);
}
}
subscriptionClient = _messagingFactories[key].Item2;
//Logger.GetInstance().Information("Subscriptionclient return for key:{@Key}", key);
}
catch (Exception ex)
{
LogManager.GetCurrentClassLogger().Error(ex, "ServiceBusManager error creating SubscriptionClient:{@SubscriptionName} for TopicName:{@TopicName} in ReceiveMode:{@ReceiveMode}", topicDetail.SubscriptionName, topicDetail.TopicName, topicDetail.RecieveMode);
}
return(subscriptionClient);
}
private static async Task <List <Event> > DownloadEvent(TopicSetting topic)
{
ConcurrentBag <Event> events = new ConcurrentBag <Event>();
IEnumerable <BrokeredMessage> messages = null;
var subClient = await ServiceBusManager.GetSubscriptionClient(topic);
messages = await subClient.ReceiveBatchAsync(topic.MessageCount);
Parallel.ForEach(messages, message =>
{
var temp = message.GetBody <Event>();
events.Add(temp);
});
foreach (var item in messages)
{
await item.CompleteAsync();
}
return(events.ToList());
}
public void AddTopic(string topic, TopicSetting setting)
{
var topics = new Dictionary <string, string>();
topics[topic] = string.Empty;
if (setting.Subtopics != null)
{
foreach (var subtopic in setting.Subtopics)
{
topics[$"{topic}.{subtopic.Key}"] = subtopic.Value;
}
}
RemoveTopics(topics.Keys.ToArray());
var apiSubscription = apiObserverService.ObserveApi(setting.ApiAddress, setting.Controller, setting.Period, setting.Member);
foreach (var t in topics)
{
AddTopicSubscription(apiSubscription, t.Key, t.Value);
}
}
public void Start(string topic, [FromBody] TopicSetting topicSetting)
{
dispatcherService.AddTopic(topic, topicSetting);
}