Add model for import job errors

SDK v2 migration guide.md

@@ -229,6 +229,7 @@ What was a loose affiliation of separate clients is now a consolidated client wi
 
 - `JobProperties` now has a helper property `IsFinished` which returns true if the job status is in a terminal state.
 - `TryGetValue<T>(...)` is available off of the desired and reported properties on `TwinProperties`.
+- Added type `ImportJobError` to deserialize the error details of an import job.
 
 #### API mapping
 

iothub/service/samples/how to guides/CleanupDevicesSample/CleanupDevicesSample.cs

@@ -6,7 +6,6 @@
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
-using System.Runtime.CompilerServices;
 using System.Text;
 using System.Threading.Tasks;
 using Azure.Storage.Blobs;
@@ -22,8 +21,6 @@ namespace Microsoft.Azure.Devices.Samples
     /// </summary>
     public class CleanupDevicesSample
     {
-        private const string ImportErrorsLog = "importErrors.log";
-
         private static readonly string s_importExportDevicesFileName = $"delete-devices-{Guid.NewGuid()}.txt";
         private static readonly TimeSpan s_waitDuration = TimeSpan.FromSeconds(30);
         private static readonly TimeSpan s_maxJobDuration = TimeSpan.FromHours(4);
@@ -139,7 +136,7 @@ private async Task DiscoverAndReportErrorsAsync()
             Console.WriteLine("Looking for any errors reported from import...");
             try
             {
-                BlobClient importErrorsBlobClient = _blobContainerClient.GetBlobClient(ImportErrorsLog);
+                BlobClient importErrorsBlobClient = _blobContainerClient.GetBlobClient(ImportJobError.ImportErrorsBlobName);
 
                 var content = await importErrorsBlobClient.DownloadContentAsync();
                 string errorContent = content.Value.Content.ToString();
@@ -150,7 +147,7 @@ private async Task DiscoverAndReportErrorsAsync()
                 {
                     try
                     {
-                        ImportError importError = JsonConvert.DeserializeObject<ImportError>(error);
+                        ImportJobError importError = JsonConvert.DeserializeObject<ImportJobError>(error);
                         Console.WriteLine($"\tImport error for {importError.DeviceId} of code {importError.ErrorCode} with status: '{importError.ErrorStatus}'.");
                     }
                     catch (Exception ex)

iothub/service/src/Registry/Models/ImportJobError.cs

@@ -0,0 +1,40 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using Newtonsoft.Json;
+
+namespace Microsoft.Azure.Devices
+{
+    /// <summary>
+    /// Useful for deserializing errors that occur from a bulk import job.
+    /// </summary>
+    /// <remarks>
+    /// Any errors that occur during a bulk import job can be deserialized with this class from a blob file named "importErrors.log"
+    /// in the container specified during import.
+    /// </remarks>
+    public class ImportJobError
+    {
+        /// <summary>
+        /// The name of the blob file that contains the import errors.
+        /// </summary>
+        public const string ImportErrorsBlobName = "importErrors.log";
+
+        /// <summary>
+        /// The Id of the device for the error.
+        /// </summary>
+        [JsonProperty("deviceId")]
+        public string DeviceId { get; set; }
+
+        /// <summary>
+        /// An error code for the device import.
+        /// </summary>
+        [JsonProperty("errorCode")]
+        public string ErrorCode { get; set; }
+
+        /// <summary>
+        /// A textual reason for the error.
+        /// </summary>
+        [JsonProperty("errorStatus")]
+        public string ErrorStatus { get; set; }
+    }
+}