Add a new interface to enable ConfigManager to handle various Events

src/Authentication.Abstractions/Interfaces/IConfigManagerWithEvents.cs

@@ -0,0 +1,28 @@
+// ----------------------------------------------------------------------------------
+//
+// Copyright Microsoft Corporation
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// -------------------------------------
+
+using Microsoft.Azure.Commands.Common.Authentication.Abstractions.Models;
+using Microsoft.Azure.PowerShell.Common.Config;
+
+using System;
+
+namespace Microsoft.Azure.Commands.Common.Authentication.Config
+{
+    public interface IConfigManagerWithEvents: IConfigManager
+    {
+        event EventHandler<ConfigEventArgs> ConfigRead;
+        event EventHandler<ConfigEventArgs> ConfigUpdated;
+        event EventHandler<ConfigEventArgs> ConfigCleared;
+    }
+}

src/Authentication.Abstractions/Models/Config/ConfigEventArgs .cs

@@ -0,0 +1,34 @@
+// ----------------------------------------------------------------------------------
+//
+// Copyright Microsoft Corporation
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// -------------------------------------
+
+using System;
+using System.Collections.Generic;
+
+namespace Microsoft.Azure.Commands.Common.Authentication.Abstractions.Models
+{
+    public class ConfigEventArgs : EventArgs, IExtensibleModel
+    {
+        public string ConfigKey { get; }
+
+        public string ConfigValue { get; }
+
+        public IDictionary<string, string> ExtendedProperties { get; } = new Dictionary<string, string>();
+
+        public ConfigEventArgs(string configKey, string configValue)
+        {
+            ConfigKey = configKey;
+            ConfigValue = configValue;
+        }
+    }
+}

src/Authentication.Abstractions/Models/Config/ConfigReadEventArgs.cs

@@ -0,0 +1,30 @@
+// ----------------------------------------------------------------------------------
+//
+// Copyright Microsoft Corporation
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// -------------------------------------
+
+namespace Microsoft.Azure.Commands.Common.Authentication.Abstractions.Models
+{
+    public class ConfigReadEventArgs : ConfigEventArgs
+    {
+        public string ConfigTelemetryKey { get; }
+
+        public ConfigReadEventArgs(string configKey, string configValue) : this(configKey, configKey, configValue)
+        {
+        }
+
+        public ConfigReadEventArgs(string configKey, string configTelemetryKey, string configValue) : base(configKey, configValue)
+        {
+            ConfigTelemetryKey = configTelemetryKey;
+        }
+    }
+}

src/Common/AzurePSCmdlet.cs

@@ -14,6 +14,8 @@
 
 using Microsoft.Azure.Commands.Common.Authentication;
 using Microsoft.Azure.Commands.Common.Authentication.Abstractions;
+using Microsoft.Azure.Commands.Common.Authentication.Abstractions.Models;
+using Microsoft.Azure.Commands.Common.Authentication.Config;
 using Microsoft.Azure.PowerShell.Common.Config;
 using Microsoft.Azure.PowerShell.Common.Share.Survey;
 using Microsoft.Azure.PowerShell.Common.UpgradeNotification;
@@ -772,6 +774,28 @@ protected virtual void InitializeQosEvent()
             }
 
             _qosEvent.SanitizerInfo = new SanitizerTelemetry(OutputSanitizer?.RequireSecretsDetection == true);
+
+            AttachConfigReadHandlerForTelemetry();
+        }
+
+        /// <summary>
+        ///  Attach config read event handler to add config telemetry
+        /// </summary>
+        private void AttachConfigReadHandlerForTelemetry()
+        {
+            AzureSession.Instance.TryGetComponent<IConfigManager>(nameof(IConfigManager), out var configManager);
+            if (configManager is IConfigManagerWithEvents cm)
+            {
+                cm.ConfigRead += OnConfigRead;
+            }
+        }
+
+        private void OnConfigRead(object sender, ConfigEventArgs args)
+        {
+            if (!_qosEvent.ConfigMetrics.ContainsKey(args.ConfigKey) && args is ConfigReadEventArgs readEventArgs)
+            {
+                _qosEvent.ConfigMetrics[readEventArgs.ConfigKey] = new ConfigMetrics(readEventArgs.ConfigTelemetryKey, readEventArgs.ConfigValue.ToString());
+            }
         }
 
         private void RecordDebugMessages()