add activity source

Author: zhiyuanliang-ms

src/Microsoft.Extensions.Configuration.AzureAppConfiguration/AzureAppConfigurationOptions.cs

@@ -2,7 +2,7 @@
 // Licensed under the MIT license.
 //
 using Azure.Core;
-using Azure.Core.Pipeline;
+using Azure.Core.Pipeline;
 using Azure.Data.AppConfiguration;
 using Microsoft.Extensions.Configuration.AzureAppConfiguration.AzureKeyVault;
 using Microsoft.Extensions.Configuration.AzureAppConfiguration.Extensions;
@@ -11,7 +11,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Net.Http;
+using System.Net.Http;
 using System.Threading.Tasks;
 
 namespace Microsoft.Extensions.Configuration.AzureAppConfiguration
@@ -25,7 +25,7 @@ public class AzureAppConfigurationOptions
         private const int MaxRetries = 2;
         private static readonly TimeSpan MaxRetryDelay = TimeSpan.FromMinutes(1);
         private static readonly TimeSpan NetworkTimeout = TimeSpan.FromSeconds(10);
-        private static readonly KeyValueSelector DefaultQuery = new KeyValueSelector { KeyFilter = KeyFilter.Any, LabelFilter = LabelFilter.Null };
+        private static readonly KeyValueSelector DefaultQuery = new KeyValueSelector { KeyFilter = KeyFilter.Any, LabelFilter = LabelFilter.Null };
 
         private List<KeyValueWatcher> _individualKvWatchers = new List<KeyValueWatcher>();
         private List<KeyValueWatcher> _ffWatchers = new List<KeyValueWatcher>();
@@ -49,6 +49,11 @@ public class AzureAppConfigurationOptions
         /// </summary>
         public bool LoadBalancingEnabled { get; set; }
 
+        /// <summary>
+        /// An optional timespan value to set the minimum backoff duration to a value other than the default.
+        /// </summary>
+        public TimeSpan MinBackoffDuration { get; set; } = FailOverConstants.MinBackoffDuration;
+
         /// <summary>
         /// The list of connection strings used to connect to an Azure App Configuration store and its replicas.
         /// </summary>
@@ -120,11 +125,6 @@ internal IEnumerable<IKeyValueAdapter> Adapters
         /// </summary>
         internal IConfigurationSettingPageIterator ConfigurationSettingPageIterator { get; set; }
 
-        /// <summary>
-        /// An optional timespan value to set the minimum backoff duration to a value other than the default.
-        /// </summary>
-        internal TimeSpan MinBackoffDuration { get; set; } = FailOverConstants.MinBackoffDuration;
-
         /// <summary>
         /// Options used to configure the client used to communicate with Azure App Configuration.
         /// </summary>
@@ -514,9 +514,9 @@ private static ConfigurationClientOptions GetDefaultClientOptions()
             clientOptions.Retry.Mode = RetryMode.Exponential;
             clientOptions.AddPolicy(new UserAgentHeaderPolicy(), HttpPipelinePosition.PerCall);
             clientOptions.Transport = new HttpClientTransport(new HttpClient()
-            {
+            {
                 Timeout = NetworkTimeout
-            });
+            });
 
             return clientOptions;
         }