Support no messages available with TimeSpentInQueue & Storage scraper (…

…#496) Signed-off-by: Tom Kerkhove <kerkhove.tom@gmail.com>
tomkerkhove · Apr 7, 2019 · f0d83a8 · f0d83a8
1 parent 8f58edb
commit f0d83a8
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/src/Promitor.Integrations.AzureStorage/AzureStorageQueueClient.cs b/src/Promitor.Integrations.AzureStorage/AzureStorageQueueClient.cs
@@ -49,8 +49,13 @@ public async Task<double> GetQueueMessageTimeSpentInQueueAsync(string accountNam
         {
             var queue = await GetQueueReference(accountName, queueName, sasToken);
 
-            var msg = await queue.PeekMessageAsync();
-            var timeSpentInQueue = msg.InsertionTime.HasValue ? DateTime.UtcNow - msg.InsertionTime.Value.UtcDateTime : TimeSpan.Zero;
+            var message = await queue.PeekMessageAsync();
+
+            TimeSpan timeSpentInQueue = TimeSpan.Zero;
+            if (message?.InsertionTime.HasValue == true)
+            {
+                timeSpentInQueue = DateTime.UtcNow - message.InsertionTime.Value.UtcDateTime;
+            }
 
             return timeSpentInQueue.TotalSeconds;
         }