Feature/timestamp messages (#68)

* added support for timestamps

* fixed tests

* Moved message class to own file; added 'z' to end of date strings

* added default time constructor

* removed unnecessary z

* added time string format info in comment

* changed from utc time to using local time

nuget.config

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration >
   <packageSources>
+    <add key="Nuget" value="https://www.nuget.org/api/v2" />
     <add key="DataTools Nuget" value="http://dtnuget/api/v2/" />
   </packageSources>
 </configuration>

src/Microsoft.SqlTools.ServiceLayer/QueryExecution/Batch.cs

@@ -38,7 +38,7 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution
         /// <summary>
         /// Internal representation of the messages so we can modify internally
         /// </summary>
-        private readonly List<string> resultMessages;
+        private readonly List<ResultMessage> resultMessages;
 
         /// <summary>
         /// Internal representation of the result sets so we can modify internally
@@ -58,7 +58,7 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution
             Selection = new SelectionData(startLine, startColumn, endLine, endColumn);
             HasExecuted = false;
             resultSets = new List<ResultSet>();
-            resultMessages = new List<string>();
+            resultMessages = new List<ResultMessage>();
             this.outputFileFactory = outputFileFactory;
         }
 
@@ -82,7 +82,7 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution
         /// <summary>
         /// Messages that have come back from the server
         /// </summary>
-        public IEnumerable<string> ResultMessages
+        public IEnumerable<ResultMessage> ResultMessages
         {
             get { return resultMessages; }
         }
@@ -168,9 +168,9 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution
                             if (!reader.HasRows && reader.FieldCount == 0)
                             {
                                 // Create a message with the number of affected rows -- IF the query affects rows
-                                resultMessages.Add(reader.RecordsAffected >= 0
-                                    ? SR.QueryServiceAffectedRows(reader.RecordsAffected)
-                                    : SR.QueryServiceCompletedSuccessfully);
+                                resultMessages.Add(new ResultMessage(reader.RecordsAffected >= 0
+                                                                        ? SR.QueryServiceAffectedRows(reader.RecordsAffected)
+                                                                        : SR.QueryServiceCompletedSuccessfully));
                                 continue;
                             }
 
@@ -183,7 +183,7 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution
                             resultSets.Add(resultSet);
 
                             // Add a message for the number of rows the query returned
-                            resultMessages.Add(SR.QueryServiceAffectedRows(resultSet.RowCount));
+                            resultMessages.Add(new ResultMessage(SR.QueryServiceAffectedRows(resultSet.RowCount)));
                         } while (await reader.NextResultAsync(cancellationToken));
                     }
                 }
@@ -244,7 +244,7 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution
         /// <param name="args">Arguments from the event</param>
         private void StoreDbMessage(object sender, SqlInfoMessageEventArgs args)
         {
-            resultMessages.Add(args.Message);
+            resultMessages.Add(new ResultMessage(args.Message));
         }
 
         /// <summary>
@@ -268,13 +268,13 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution
                         string message = string.Format("Msg {0}, Level {1}, State {2}, Line {3}{4}{5}",
                             sqlError.Number, sqlError.Class, sqlError.State, lineNumber,
                             Environment.NewLine, sqlError.Message);
-                        resultMessages.Add(message);
+                        resultMessages.Add(new ResultMessage(message));
                     }
                 }
             }
             else
             {
-                resultMessages.Add(dbe.Message);
+                resultMessages.Add(new ResultMessage(dbe.Message));
             }
         }
 

src/Microsoft.SqlTools.ServiceLayer/QueryExecution/Contracts/BatchSummary.cs

@@ -28,7 +28,7 @@ namespace Microsoft.SqlTools.ServiceLayer.QueryExecution.Contracts
         /// <summary>
         /// Any messages that came back from the server during execution of the batch
         /// </summary>
-        public string[] Messages { get; set; }
+        public ResultMessage[] Messages { get; set; }
 
         /// <summary>
         /// The summaries of the result sets inside the batch

src/Microsoft.SqlTools.ServiceLayer/QueryExecution/Contracts/ResultMessage.cs

@@ -0,0 +1,44 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using System;
+
+namespace Microsoft.SqlTools.ServiceLayer.QueryExecution.Contracts
+{
+    /// <summary>
+    /// Result message object with timestamp and actual message
+    /// </summary>
+    public class ResultMessage
+    {
+        /// <summary>
+        /// Timestamp of the message
+        /// Stored in UTC ISO 8601 format; should be localized before displaying to any user
+        /// </summary>
+        public string Time { get; set; }
+
+        /// <summary>
+        /// Message contents
+        /// </summary>
+        public string Message { get; set; }
+
+        /// <summary>
+        /// Full constructor
+        /// </summary>
+        public ResultMessage(string timeStamp, string message)
+        {
+            Time = timeStamp;
+            Message = message;
+        }
+
+        /// <summary>
+        /// Constructor with default "Now" time
+        /// </summary>
+        public ResultMessage(string message)
+        {
+            Time = DateTime.Now.ToString("o");
+            Message = message;
+        }
+    }
+}

test/Microsoft.SqlTools.ServiceLayer.Test/QueryExecution/ExecuteTests.cs

@@ -74,7 +74,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Test.QueryExecution
 
             // ... There should be a message for how many rows were affected
             Assert.Equal(1, batch.ResultMessages.Count());
-            Assert.Contains("1 ", batch.ResultMessages.First());
+            Assert.Contains("1 ", batch.ResultMessages.First().Message);
             // NOTE: 1 is expected because this test simulates a 'update' statement where 1 row was affected.
             // The 1 in quotes is to make sure the 1 isn't part of a larger number
         }
@@ -108,7 +108,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Test.QueryExecution
 
             // ... There should be a message for how many rows were affected
             Assert.Equal(resultSets, batch.ResultMessages.Count());
-            Assert.Contains(Common.StandardRows.ToString(), batch.ResultMessages.First());
+            Assert.Contains(Common.StandardRows.ToString(), batch.ResultMessages.First().Message);
         }
 
         [Fact]
@@ -155,7 +155,7 @@ namespace Microsoft.SqlTools.ServiceLayer.Test.QueryExecution
             Assert.Equal(resultSets, batch.ResultMessages.Count());
             foreach (var rsm in batch.ResultMessages)
             {
-                Assert.Contains(Common.StandardRows.ToString(), rsm);
+                Assert.Contains(Common.StandardRows.ToString(), rsm.Message);
             }
         }