supporting restore from db (#429)

* supporting restore from db

src/Microsoft.SqlTools.ServiceLayer/DisasterRecovery/Contracts/RestoreRequestParams.cs

@@ -0,0 +1,145 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using System.Collections.Generic;
+using Microsoft.SqlTools.ServiceLayer.Utility;
+using Newtonsoft.Json.Linq;
+
+namespace Microsoft.SqlTools.ServiceLayer.DisasterRecovery.Contracts
+{
+    /// <summary>
+    /// Restore request parameters
+    /// </summary>
+    public class RestoreParams : GeneralRequestDetails
+    {
+        /// <summary>
+        /// Restore session id. The parameter is optional and if passed, an existing plan will be used
+        /// </summary>
+        internal string SessionId
+        {
+            get
+            {
+                return GetOptionValue<string>(RestoreOptionsHelper.SessionId);
+            }
+            set
+            {
+                SetOptionValue(RestoreOptionsHelper.SessionId, value);
+            }
+        }
+
+        /// <summary>
+        /// The Uri to find the connection to do the restore operations
+        /// </summary>
+        public string OwnerUri { get; set; }
+
+        /// <summary>
+        /// Comma delimited list of backup files
+        /// </summary>
+        internal string BackupFilePaths
+        {
+            get
+            {
+                return GetOptionValue<string>(RestoreOptionsHelper.BackupFilePaths);
+            }
+            set
+            {
+                SetOptionValue(RestoreOptionsHelper.BackupFilePaths, value);
+            }
+        }
+
+        /// <summary>
+        /// Target Database name to restore to
+        /// </summary>
+        internal string TargetDatabaseName
+        {
+            get
+            {
+                return GetOptionValue<string>(RestoreOptionsHelper.TargetDatabaseName);
+            }
+            set
+            {
+                SetOptionValue(RestoreOptionsHelper.TargetDatabaseName, value);
+            }
+        }
+
+        /// <summary>
+        /// Source Database name to restore from
+        /// </summary>
+        internal string SourceDatabaseName
+        {
+            get
+            {
+                return GetOptionValue<string>(RestoreOptionsHelper.SourceDatabaseName);
+            }
+            set
+            {
+                SetOptionValue(RestoreOptionsHelper.SourceDatabaseName, value);
+            }
+        }
+
+        /// <summary>
+        /// If set to true, the db files will be relocated to default data location in the server
+        /// </summary>
+        internal bool RelocateDbFiles
+        {
+            get
+            {
+                return GetOptionValue<bool>(RestoreOptionsHelper.RelocateDbFiles);
+            }
+            set
+            {
+                SetOptionValue(RestoreOptionsHelper.RelocateDbFiles, value);
+            }
+        }
+
+        /// <summary>
+        /// If set to true, the backup files will be used to create restore plan otehrwise the source database name will be used
+        /// </summary>
+        internal bool ReadHeaderFromMedia
+        {
+            get
+            {
+                //Default is true for now for backward compatibility
+                return Options.ContainsKey(RestoreOptionsHelper.ReadHeaderFromMedia) ? GetOptionValue<bool>(RestoreOptionsHelper.ReadHeaderFromMedia) : true;
+            }
+            set
+            {
+                SetOptionValue(RestoreOptionsHelper.ReadHeaderFromMedia, value);
+            }
+        }
+
+        /// <summary>
+        /// Ids of the selected backup set to restore. If null, all backup sets will be selected. If empty list,
+        /// no backup sets will be selected
+        /// </summary>
+        internal IEnumerable<string> SelectedBackupSets
+        {
+            get
+            {
+                var selectedBackupSets = GetOptionValue<object>(RestoreOptionsHelper.SelectedBackupSets);
+                if (selectedBackupSets != null)
+                {
+                    JArray array = selectedBackupSets as JArray;
+                    if(array != null)
+                    {
+                        return array.ToObject<IEnumerable<string>>();
+                    }
+                    else
+                    {
+                        IEnumerable<string> list = selectedBackupSets as IEnumerable<string>;
+                        return list;
+                    }
+
+                }
+                return null;
+            }
+            set
+            {
+                SetOptionValue(RestoreOptionsHelper.SelectedBackupSets, value);
+            }
+        }
+    }
+
+}