Adds missing parts of the fix in PR #1110 (#1130)

* adds missing parts of the fix in PR #1110

* increases subscription wait time

* moves wait to its proper place

* lint changes

* incorporates review comment

* lint changes

* unreported regitlint changes

---------

Co-authored-by: Ersan Bozduman <ersanbozduman@gmail.com>

Author: ebozduman

Minio.Examples/Cases/ListenNotifications.cs

@@ -32,7 +32,7 @@ public static void Run(IMinioClient minio,
             Console.WriteLine();
             events ??= new List<EventType> { EventType.BucketCreatedAll };
             var args = new ListenBucketNotificationsArgs().WithEvents(events);
-            var observable = minio.ListenNotificationsAsync(events);
+            var observable = minio.ListenNotifications(args);
 
             subscription = observable.Subscribe(
                 notification => Console.WriteLine($"Notification: {notification.Json}"),

Minio.Functional.Tests/FunctionalTest.cs

@@ -84,7 +84,7 @@ public static class FunctionalTest
         "IObservable<MinioNotificationRaw> ListenBucketNotificationsAsync(ListenBucketNotificationsArgs args, CancellationToken cancellationToken = default(CancellationToken))";
 
     private const string listenNotificationsSignature =
-        "IObservable<MinioNotificationRaw> ListenNotificationsAsync(IList<EventType> events, CancellationToken cancellationToken = default(CancellationToken))";
+        "IObservable<MinioNotificationRaw> ListenNotifications(ListenBucketNotificationsArgs args, CancellationToken cancellationToken = default(CancellationToken))";
 
     private const string copyObjectSignature =
         "Task<CopyObjectResult> CopyObjectAsync(CopyObjectArgs args, CancellationToken cancellationToken = default(CancellationToken))";
@@ -1041,13 +1041,11 @@ internal static async Task<bool> CreateBucket_Tester(IMinioClient minio, string
     {
         // Create a new bucket
         await minio.MakeBucketAsync(new MakeBucketArgs().WithBucket(bucketName)).ConfigureAwait(false);
+        await Task.Delay(800).ConfigureAwait(false);
 
         // Verify the bucket exists
-        var bucketExists = await minio.BucketExistsAsync(new BucketExistsArgs().WithBucket(bucketName))
+        return await minio.BucketExistsAsync(new BucketExistsArgs().WithBucket(bucketName))
             .ConfigureAwait(false);
-        Assert.IsTrue(bucketExists, $"Bucket {bucketName} was not created successfully.");
-
-        return bucketExists;
     }
 
     internal static async Task StatObject_Test1(IMinioClient minio)
@@ -1282,7 +1280,7 @@ internal static async Task RemoveObjects_Test3(IMinioClient minio)
                 .WithBucket(bucketName)
                 .WithObjectsVersions(objVersions);
 
-            await minio.RemoveObjectsAsync(removeObjectsArgs).ConfigureAwait(false);
+            _ = await minio.RemoveObjectsAsync(removeObjectsArgs).ConfigureAwait(false);
 
             await TearDown(minio, bucketName).ConfigureAwait(false);
 
@@ -2639,7 +2637,7 @@ await ListObjects_Test(minio, bucketName, singleObjectName, 1, headers: extractH
 
     #region Global Notifications
 
-    internal static async Task ListenNotificationsAsync_Test1(IMinioClient minio)
+    internal static async Task ListenNotifications_Test1(IMinioClient minio)
     {
         var startTime = DateTime.Now;
         var bucketName = GetRandomName(15);
@@ -2648,61 +2646,54 @@ internal static async Task ListenNotificationsAsync_Test1(IMinioClient minio)
         try
         {
             var received = new List<MinioNotificationRaw>();
-
             var eventsList = new List<EventType> { EventType.BucketCreatedAll };
 
-            var events = minio.ListenNotificationsAsync(eventsList);
-            var subscription = events.Subscribe(
-                received.Add,
-                ex => Console.WriteLine($"OnError: {ex}"),
-                () => Console.WriteLine("Stopped listening for bucket notifications\n"));
-
-            // Ensure the subscription is established
-            await Task.Delay(1000).ConfigureAwait(false);
-
-            // Trigger the event by creating a new bucket
-            var isBucketCreated1 = await CreateBucket_Tester(minio, bucketName).ConfigureAwait(false);
-
+            // No need to define a new "ListenNotificationArgs"
+            // "ListenBucketNotificationsArgs" is good here
+            var listenArgs = new ListenBucketNotificationsArgs()
+                .WithEvents(eventsList);
+            var events = minio.ListenNotifications(listenArgs);
             var eventDetected = false;
+            using (var subscription = events.Subscribe(
+                       received.Add,
+                       _ => { },
+                       () => { }))
+            {
+                await Task.Delay(200).ConfigureAwait(false);
+                // Trigger the event by creating a new bucket
+                _ = await CreateBucket_Tester(minio, bucketName).ConfigureAwait(false);
+            }
+
             for (var attempt = 0; attempt < 20; attempt++)
-            {
-                if (received.Count > 0)
+                // Check if there is a caught event
+                if (received.Count == 1)
                 {
                     var notification = JsonSerializer.Deserialize<MinioNotification>(received[0].Json);
 
                     if (notification.Records is not null)
                     {
                         Assert.AreEqual(1, notification.Records.Count);
+                        Assert.IsTrue(notification.Records[0].EventName
+                            .Contains("s3:BucketCreated:*", StringComparison.OrdinalIgnoreCase));
                         eventDetected = true;
                         break;
                     }
                 }
 
-                await Task.Delay(500).ConfigureAwait(false); // Delay between attempts
-            }
-
-            subscription.Dispose();
-            if (!eventDetected)
-                throw new UnexpectedMinioException("Failed to detect the expected bucket notification event.");
-
-            new MintLogger(nameof(ListenNotificationsAsync_Test1),
-                listenNotificationsSignature,
-                "Tests whether ListenNotifications passes",
-                TestStatus.PASS, DateTime.Now - startTime, args: args).Log();
-        }
-        catch (NotImplementedException ex)
-        {
-            new MintLogger(nameof(ListenNotificationsAsync_Test1),
-                listenNotificationsSignature,
-                "Tests whether ListenNotifications passes",
-                TestStatus.NA, DateTime.Now - startTime, ex.Message,
-                ex.ToString(), args: args).Log();
+            if (eventDetected)
+                new MintLogger(nameof(ListenNotifications_Test1),
+                    listenNotificationsSignature,
+                    "Tests whether ListenNotifications notifies user about \"BucketCreatedAll\" event",
+                    TestStatus.PASS, DateTime.Now - startTime, args: args).Log();
+            else
+                throw new UnexpectedMinioException(
+                    "Failed to detect the expected notification event, \"BucketCreatedAll\".");
         }
         catch (Exception ex)
         {
-            new MintLogger(nameof(ListenNotificationsAsync_Test1),
+            new MintLogger(nameof(ListenNotifications_Test1),
                 listenNotificationsSignature,
-                "Tests whether ListenNotifications passes",
+                "Tests whether ListenNotifications notifies user about \"BucketCreatedAll\" event",
                 TestStatus.FAIL, DateTime.Now - startTime, ex.Message,
                 ex.ToString(), args: args).Log();
             throw;
@@ -2738,57 +2729,26 @@ internal static async Task ListenBucketNotificationsAsync_Test1(IMinioClient min
             var received = new List<MinioNotificationRaw>();
 
             var eventsList = new List<EventType> { EventType.ObjectCreatedAll };
+            var eventDetected = false;
 
             var listenArgs = new ListenBucketNotificationsArgs()
                 .WithBucket(bucketName)
                 .WithEvents(eventsList);
             var events = minio.ListenBucketNotificationsAsync(listenArgs);
-            var subscription = events.Subscribe(
-                received.Add,
-                ex => { },
-                () => { }
-            );
-
-
-            _ = await PutObject_Tester(minio, bucketName, objectName, null, contentType,
-                0, null, rsg.GenerateStreamFromSeed(1 * KB)).ConfigureAwait(false);
+            using (var subscription = events.Subscribe(
+                       received.Add,
+                       _ => { },
+                       () => { }))
+            {
+                _ = await PutObject_Tester(minio, bucketName, objectName, null, contentType,
+                    0, null, rsg.GenerateStreamFromSeed(1 * KB)).ConfigureAwait(false);
+            }
 
-            // wait for notifications
-            var eventDetected = false;
-            for (var attempt = 0; attempt < 10; attempt++)
-                if (received.Count > 0)
+            for (var attempt = 0; attempt < 20; attempt++)
+                // Check if there is a caught event
+                if (received.Count == 1)
                 {
-                    // Check if there is any unexpected error returned
-                    // and captured in the receivedJson list, like
-                    // "NotImplemented" api error. If so, we throw an exception
-                    // and skip running this test
-                    if (received.Count > 1 &&
-                        received[1].Json.StartsWith("<Error><Code>", StringComparison.OrdinalIgnoreCase))
-                    {
-                        // Although the attribute is called "json",
-                        // returned data in list "received" is in xml
-                        // format and it is an error.Here, we convert xml
-                        // into json format.
-                        var receivedJson = XmlStrToJsonStr(received[1].Json);
-
-                        // Cleanup the "Error" key encapsulating "receivedJson"
-                        // data. This is required to match and convert json data
-                        // "receivedJson" into class "ErrorResponse"
-                        var len = "{'Error':".Length;
-                        var trimmedFront = receivedJson[len..];
-                        var trimmedFull = trimmedFront[..^1];
-
-                        var err = JsonSerializer.Deserialize<ErrorResponse>(trimmedFull);
-
-                        Exception ex = new UnexpectedMinioException(err.Message);
-                        if (string.Equals(err.Code, "NotImplemented", StringComparison.OrdinalIgnoreCase))
-                            ex = new NotImplementedException(err.Message);
-                        await TearDown(minio, bucketName).ConfigureAwait(false);
-                        throw ex;
-                    }
-
                     var notification = JsonSerializer.Deserialize<MinioNotification>(received[0].Json);
-
                     if (notification.Records is not null)
                     {
                         Assert.AreEqual(1, notification.Records.Count);
@@ -2804,20 +2764,19 @@ internal static async Task ListenBucketNotificationsAsync_Test1(IMinioClient min
                     }
                 }
 
-            // subscription.Dispose();
-            if (!eventDetected)
+            if (eventDetected)
+                new MintLogger(nameof(ListenBucketNotificationsAsync_Test1),
+                    listenBucketNotificationsSignature,
+                    "Tests whether ListenBucketNotifications passes for small object",
+                    TestStatus.PASS, DateTime.Now - startTime, args: args).Log();
+            else
                 throw new UnexpectedMinioException("Failed to detect the expected bucket notification event.");
-
-            new MintLogger(nameof(ListenBucketNotificationsAsync_Test1),
-                listenBucketNotificationsSignature,
-                "Tests whether ListenBucketNotifications passes for small object",
-                TestStatus.PASS, DateTime.Now - startTime, args: args).Log();
         }
         catch (NotImplementedException ex)
         {
             new MintLogger(nameof(ListenBucketNotificationsAsync_Test1),
                 listenBucketNotificationsSignature,
-                "Tests whether ListenBucketNotifications passes for small object",
+                "Tests whether ListenBucketNotifications generates notification for a newly created object.",
                 TestStatus.NA, DateTime.Now - startTime, ex.Message,
                 ex.ToString(), args: args).Log();
         }
@@ -2841,14 +2800,14 @@ static bool isAWS(string endPoint)
                     // This is a PASS
                     new MintLogger(nameof(ListenBucketNotificationsAsync_Test1),
                         listenBucketNotificationsSignature,
-                        "Tests whether ListenBucketNotifications passes for small object",
+                        "Tests whether ListenBucketNotifications generates notification for a newly created object.",
                         TestStatus.PASS, DateTime.Now - startTime, args: args).Log();
             }
             else
             {
                 new MintLogger(nameof(ListenBucketNotificationsAsync_Test1),
                     listenBucketNotificationsSignature,
-                    "Tests whether ListenBucketNotifications passes for small object",
+                    "Tests whether ListenBucketNotifications generates notification for a newly created object.",
                     TestStatus.FAIL, DateTime.Now - startTime, ex.Message,
                     ex.ToString(), args: args).Log();
                 throw;

Minio.Functional.Tests/Program.cs

@@ -108,7 +108,7 @@ public static async Task Main(string[] args)
         ConcurrentBag<Task> functionalTestTasks = new();
 
         // Global Notification
-        await FunctionalTest.ListenNotificationsAsync_Test1(minioClient).ConfigureAwait(false);
+        await FunctionalTest.ListenNotifications_Test1(minioClient).ConfigureAwait(false);
 
         // Try catch as 'finally' section needs to run in the Functional Tests
         // Bucket notification is a minio specific feature.

Minio/ApiEndpoints/BucketOperations.cs

@@ -762,13 +762,12 @@ await this.ExecuteTaskAsync(ResponseErrorHandlers, requestMessageBuilder,
     /// <summary>
     ///     Subscribes to global change notifications (a Minio-only extension)
     /// </summary>
-    /// <param name="events">Events to listen for</param>
+    /// <param name="args">ListenBucketNotificationsArgs to listen events</param>
     /// <param name="cancellationToken">Optional cancellation token to cancel the operation</param>
     /// <returns>An observable of JSON-based notification events</returns>
-    public IObservable<MinioNotificationRaw> ListenNotificationsAsync(IList<EventType> events,
+    public IObservable<MinioNotificationRaw> ListenNotifications(ListenBucketNotificationsArgs args,
         CancellationToken cancellationToken = default)
     {
-        var args = new ListenBucketNotificationsArgs().WithEvents(events);
         return ListenBucketNotificationsAsync(args, cancellationToken);
     }
 

Minio/ApiEndpoints/IBucketOperations.cs

@@ -379,7 +379,7 @@ Task<ReplicationConfiguration> GetBucketReplicationAsync(GetBucketReplicationArg
 
     Task<string> GetPolicyAsync(GetPolicyArgs args, CancellationToken cancellationToken = default);
 
-    IObservable<MinioNotificationRaw> ListenNotificationsAsync(IList<EventType> events,
+    IObservable<MinioNotificationRaw> ListenNotifications(ListenBucketNotificationsArgs args,
         CancellationToken cancellationToken = default);
 
     IObservable<MinioNotificationRaw> ListenBucketNotificationsAsync(string bucketName, IList<EventType> events,

Minio/Minio.csproj

@@ -25,7 +25,7 @@
 		<PackageReference Include="System.Net.Http" Version="4.3.4" />
 		<PackageReference Include="System.Net.Primitives" Version="4.3.1" />
 		<PackageReference Include="System.ValueTuple" Version="4.5.0" />
-		<PackageReference Include="System.Text.Json" Version="8.0.3" />
+		<PackageReference Include="System.Text.Json" Version="8.0.4" />
         <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
         <PackageReference Include="System.Security.Cryptography.Algorithms" Version="4.3.1" />
 	</ItemGroup>