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Merge pull request #147 from jirkapok/feature/Fixed_Notifications_Tab…
…_Recreation Fixed notification not received in SWQL studio
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
|
|
||
| namespace SwqlStudio.Subscriptions | ||
| { | ||
| internal class SubscriptionCallbacks | ||
| { | ||
| private readonly string activeSubscriberAddress; | ||
| internal string Uri { get; } | ||
| internal string Id { get; set; } | ||
|
|
||
| private readonly NotificationDeliveryServiceProxy proxy; | ||
| private readonly object itemsLock = new object(); | ||
|
|
||
| internal IEnumerable<SubscriberCallback> Callbacks | ||
| { | ||
| get | ||
| { | ||
| lock (this.itemsLock) | ||
| { | ||
| return new List<SubscriberCallback>(this.callbacks); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public bool Empty | ||
| { | ||
| get | ||
| { | ||
| lock (this.itemsLock) | ||
| { | ||
| return !this.callbacks.Any(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private readonly List<SubscriberCallback> callbacks = new List<SubscriberCallback>(); | ||
|
|
||
| public SubscriptionCallbacks(string uri, NotificationDeliveryServiceProxy proxy, string activeSubscriberAddress) | ||
| { | ||
| this.Uri = uri; | ||
| this.Id = uri.Substring(uri.LastIndexOf("=") + 1); | ||
| this.proxy = proxy; | ||
| this.activeSubscriberAddress = activeSubscriberAddress; | ||
| } | ||
|
|
||
| internal void Add(SubscriberCallback callback) | ||
| { | ||
| lock (this.itemsLock) | ||
| { | ||
| if (!this.callbacks.Contains(callback)) | ||
| this.callbacks.Add(callback); | ||
| } | ||
| } | ||
|
|
||
| internal void Remove(SubscriberCallback callback) | ||
| { | ||
| lock (this.itemsLock) | ||
| { | ||
| this.callbacks.Remove(callback); | ||
| } | ||
| } | ||
|
|
||
| internal void CloseProxy() | ||
| { | ||
| lock (this.itemsLock) | ||
| { | ||
| if (this.proxy != null) | ||
| { | ||
| this.proxy.Disconnect(this.activeSubscriberAddress); | ||
| this.proxy.Close(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
|
|
||
| namespace SwqlStudio.Subscriptions | ||
| { | ||
| internal class SubscriptionInfo | ||
| { | ||
| private readonly ConnectionInfo connection; | ||
| private readonly object itemsLock = new object(); | ||
|
|
||
| private readonly Dictionary<string, SubscriptionCallbacks> subscriptions = | ||
| new Dictionary<string, SubscriptionCallbacks>(); | ||
|
|
||
| internal SubscriptionInfo(ConnectionInfo connection) | ||
| { | ||
| this.connection = connection; | ||
| } | ||
|
|
||
| internal bool HasSubScription(string subscriptionId) | ||
| { | ||
| lock (this.itemsLock) | ||
| { | ||
| return this.subscriptions.Values.Any(s => s.Id == subscriptionId); | ||
| } | ||
| } | ||
|
|
||
| internal string Register(string query, SubscriberCallback callback, | ||
| Func<ConnectionInfo, string, SubscriptionCallbacks> subscribe) | ||
| { | ||
| SubscriptionCallbacks subscription; | ||
| var normalized = query.ToLower(); | ||
|
|
||
| lock (this.itemsLock) | ||
| { | ||
| if (!this.subscriptions.TryGetValue(normalized, out subscription)) | ||
| { | ||
| subscription = subscribe(this.connection, query); | ||
| this.subscriptions.Add(normalized, subscription); | ||
| } | ||
| } | ||
|
|
||
| subscription.Add(callback); | ||
| return subscription.Uri; | ||
| } | ||
|
|
||
| internal void Remove(string subscriptionUri, SubscriberCallback callback) | ||
| { | ||
| lock (this.itemsLock) | ||
| { | ||
| var query = this.subscriptions.Where(kv => kv.Value.Uri == subscriptionUri) | ||
| .Select(kv => kv.Key) | ||
| .FirstOrDefault(); | ||
|
|
||
| if (String.IsNullOrEmpty(query)) | ||
| return; | ||
|
|
||
| var subscription = this.subscriptions[query]; | ||
| subscription.Remove(callback); | ||
|
|
||
| if (subscription.Empty) | ||
| { | ||
| this.subscriptions.Remove(query); | ||
| this.Unsubscribe(subscriptionUri); | ||
| subscription.CloseProxy(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private void Unsubscribe(string subscriptionUri) | ||
| { | ||
| if (this.connection.IsConnected) | ||
| this.connection.Proxy.Delete(subscriptionUri); | ||
| } | ||
|
|
||
| internal IEnumerable<SubscriberCallback> CallBacks(string subscriptionId) | ||
| { | ||
| lock (this.itemsLock) | ||
| { | ||
| return this.subscriptions.Values.Where(v => v.Id == subscriptionId) | ||
| .SelectMany(kv => kv.Callbacks) | ||
| .ToList(); | ||
| } | ||
| } | ||
| } | ||
| } |
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