Add more telemetry for monitoring. (#575)

* Add more telemetry for monitoring.

Author: cristinamanum

src/Validation.Symbols/ITelemetryService.cs

@@ -3,6 +3,7 @@
 
 using System;
 using NuGet.Services.ServiceBus;
+using NuGet.Services.Validation;
 
 namespace Validation.Symbols
 {
@@ -29,5 +30,14 @@ public interface ITelemetryService : ISubscriptionProcessorTelemetryService
         /// <param name="packageNormalizedVersion">The package normalized version.</param>
         /// <param name="symbolCount">The count of symbols validated.</param>
         IDisposable TrackSymbolValidationDurationEvent(string packageId, string packageNormalizedVersion, int symbolCount);
+
+        /// <summary>
+        /// Tracks the status of the validation.
+        /// </summary>
+        /// <param name="packageId">The pacakge id.</param>
+        /// <param name="packageNormalizedVersion">The package normalized version.</param>
+        /// <param name="validationStatus">The validation result.</param>
+        /// <param name="issue">Information about the issue id failed or empty if passed..</param>
+        void TrackSymbolsValidationResultEvent(string packageId, string packageNormalizedVersion, ValidationStatus validationStatus, string issue);
     }
 }

src/Validation.Symbols/SymbolsValidatorService.cs

@@ -76,6 +76,7 @@ public async Task<IValidationResult> ValidateSymbolsAsync(string packageId, stri
             {
                 if (!SymbolsHaveMatchingPEFiles(pdbs, pes))
                 {
+                    _telemetryService.TrackSymbolsValidationResultEvent(packageId, packageNormalizedVersion, ValidationStatus.Failed, nameof(ValidationIssue.SymbolErrorCode_MatchingPortablePDBNotFound));
                     return ValidationResult.FailedWithIssues(ValidationIssue.SymbolErrorCode_MatchingPortablePDBNotFound);
                 }
                 var targetDirectory = Settings.GetWorkingDirectory();
@@ -165,6 +166,7 @@ public virtual IValidationResult ValidateSymbolMatching(string targetDirectory,
 
                             if (checksumRecords.Length == 0)
                             {
+                                _telemetryService.TrackSymbolsValidationResultEvent(packageId, packageNormalizedVersion, ValidationStatus.Failed, nameof(ValidationIssue.SymbolErrorCode_ChecksumDoesNotMatch));
                                 return ValidationResult.FailedWithIssues(ValidationIssue.SymbolErrorCode_ChecksumDoesNotMatch);
                             }
 
@@ -195,15 +197,18 @@ public virtual IValidationResult ValidateSymbolMatching(string targetDirectory,
                                     if (checksumRecord.Checksum.ToArray().SequenceEqual(hash))
                                     {
                                         // found the right checksum
+                                        _telemetryService.TrackSymbolsValidationResultEvent(packageId, packageNormalizedVersion, ValidationStatus.Succeeded, "");
                                         return ValidationResult.Succeeded;
                                     }
                                 }
 
                                 // Not found any checksum record that matches the PDB.
+                                _telemetryService.TrackSymbolsValidationResultEvent(packageId, packageNormalizedVersion, ValidationStatus.Failed, nameof(ValidationIssue.SymbolErrorCode_ChecksumDoesNotMatch));
                                 return ValidationResult.FailedWithIssues(ValidationIssue.SymbolErrorCode_ChecksumDoesNotMatch);
                             }
                         }
                     }
+                    _telemetryService.TrackSymbolsValidationResultEvent(packageId, packageNormalizedVersion, ValidationStatus.Failed, nameof(ValidationIssue.SymbolErrorCode_MatchingPortablePDBNotFound));
                     return ValidationResult.FailedWithIssues(ValidationIssue.SymbolErrorCode_MatchingPortablePDBNotFound);
                 }
             }
@@ -215,6 +220,7 @@ public virtual IValidationResult ValidateSymbolMatching(string targetDirectory,
                              packageId,
                              packageNormalizedVersion,
                              Directory.GetFiles(targetDirectory, SymbolExtensionPattern, SearchOption.AllDirectories));
+            _telemetryService.TrackSymbolsValidationResultEvent(packageId, packageNormalizedVersion, ValidationStatus.Failed, nameof(ValidationIssue.SymbolErrorCode_MatchingPortablePDBNotFound));
             return ValidationResult.FailedWithIssues(ValidationIssue.SymbolErrorCode_MatchingPortablePDBNotFound);
         }
 

src/Validation.Symbols/TelemetryService.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using NuGet.Services.Logging;
+using NuGet.Services.Validation;
 
 namespace Validation.Symbols
 {
@@ -15,11 +16,14 @@ public class TelemetryService : ITelemetryService
         private const string SymbolValidationDuration = Prefix + "SymbolValidationDurationInSeconds";
         private const string MessageDeliveryLag = Prefix + "MessageDeliveryLag";
         private const string MessageEnqueueLag = Prefix + "MessageEnqueueLag";
+        private const string SymbolValidationResult = Prefix + "SymbolValidationResult";
 
         private const string PackageId = "PackageId";
         private const string PackageNormalizedVersion = "PackageNormalizedVersion";
         private const string MessageType = "MessageType";
         private const string SymbolCount = "SymbolCount";
+        private const string ValidationResult = "ValidationResult";
+        private const string Issue = "Issue";
 
         private readonly ITelemetryClient _telemetryClient;
 
@@ -64,6 +68,20 @@ public IDisposable TrackSymbolValidationDurationEvent(string packageId, string p
                 });
         }
 
+        public void TrackSymbolsValidationResultEvent(string packageId, string packageNormalizedVersion, ValidationStatus validationStatus, string issue)
+        {
+            _telemetryClient.TrackMetric(
+                SymbolValidationResult,
+                1,
+                new Dictionary<string, string>
+                {
+                    { ValidationResult, validationStatus.ToString() },
+                    { Issue, issue },
+                    { PackageId, packageId },
+                    { PackageNormalizedVersion, packageNormalizedVersion }
+                });
+        }
+
         public void TrackMessageDeliveryLag<TMessage>(TimeSpan deliveryLag)
             => _telemetryClient.TrackMetric(
                 MessageDeliveryLag,