limit knowledge of sqlite

MediaBrowser.Server.Implementations/Persistence/SqliteDisplayPreferencesRepository.cs

@@ -5,7 +5,6 @@ using MediaBrowser.Model.Logging;
 using MediaBrowser.Model.Serialization;
 using System;
 using System.Data;
-using System.Data.SQLite;
 using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
@@ -17,7 +16,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
     /// </summary>
     public class SqliteDisplayPreferencesRepository : IDisplayPreferencesRepository
     {
-        private SQLiteConnection _connection;
+        private IDbConnection _connection;
 
         private readonly ILogger _logger;
 
@@ -124,7 +123,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
 
             await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
 
-            SQLiteTransaction transaction = null;
+            IDbTransaction transaction = null;
 
             try
             {
@@ -133,14 +132,15 @@ namespace MediaBrowser.Server.Implementations.Persistence
                 using (var cmd = _connection.CreateCommand())
                 {
                     cmd.CommandText = "replace into userdisplaypreferences (id, userid, client, data) values (@1, @2, @3, @4)";
-                    cmd.AddParam("@1", displayPreferences.Id);
-                    cmd.AddParam("@2", userId);
-                    cmd.AddParam("@3", client);
-                    cmd.AddParam("@4", serialized);
+
+                    cmd.Parameters.Add(cmd, "@1", DbType.Guid).Value = displayPreferences.Id;
+                    cmd.Parameters.Add(cmd, "@2", DbType.Guid).Value = userId;
+                    cmd.Parameters.Add(cmd, "@3", DbType.String).Value = client;
+                    cmd.Parameters.Add(cmd, "@4", DbType.Binary).Value = serialized;
 
                     cmd.Transaction = transaction;
 
-                    await cmd.ExecuteNonQueryAsync(cancellationToken);
+                    cmd.ExecuteNonQuery();
                 }
 
                 transaction.Commit();
@@ -194,14 +194,9 @@ namespace MediaBrowser.Server.Implementations.Persistence
             var cmd = _connection.CreateCommand();
             cmd.CommandText = "select data from userdisplaypreferences where id = @id and userId=@userId and client=@client";
 
-            var idParam = cmd.Parameters.Add("@id", DbType.Guid);
-            idParam.Value = displayPreferencesId;
-
-            var userIdParam = cmd.Parameters.Add("@userId", DbType.Guid);
-            userIdParam.Value = userId;
-
-            var clientParam = cmd.Parameters.Add("@client", DbType.String);
-            clientParam.Value = client;
+            cmd.Parameters.Add(cmd, "@id", DbType.Guid).Value = displayPreferencesId;
+            cmd.Parameters.Add(cmd, "@userId", DbType.Guid).Value = userId;
+            cmd.Parameters.Add(cmd, "@client", DbType.String).Value = client;
 
             using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow))
             {

MediaBrowser.Server.Implementations/Persistence/SqliteExtensions.cs

@@ -12,40 +12,6 @@ namespace MediaBrowser.Server.Implementations.Persistence
     /// </summary>
     static class SqliteExtensions
     {
-        /// <summary>
-        /// Adds the param.
-        /// </summary>
-        /// <param name="cmd">The CMD.</param>
-        /// <param name="param">The param.</param>
-        /// <returns>SQLiteParameter.</returns>
-        /// <exception cref="System.ArgumentNullException"></exception>
-        public static SQLiteParameter AddParam(this SQLiteCommand cmd, string param)
-        {
-            if (string.IsNullOrEmpty(param))
-            {
-                throw new ArgumentNullException();
-            }
-
-            var sqliteParam = new SQLiteParameter(param);
-            cmd.Parameters.Add(sqliteParam);
-            return sqliteParam;
-        }
-
-        /// <summary>
-        /// Adds the param.
-        /// </summary>
-        /// <param name="cmd">The CMD.</param>
-        /// <param name="param">The param.</param>
-        /// <param name="data">The data.</param>
-        /// <returns>SQLiteParameter.</returns>
-        /// <exception cref="System.ArgumentNullException"></exception>
-        public static SQLiteParameter AddParam(this SQLiteCommand cmd, string param, object data)
-        {
-            var sqliteParam = AddParam(cmd, param);
-            sqliteParam.Value = data;
-            return sqliteParam;
-        }
-
         /// <summary>
         /// Determines whether the specified conn is open.
         /// </summary>
@@ -160,7 +126,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
         /// <param name="dbPath">The db path.</param>
         /// <returns>Task{IDbConnection}.</returns>
         /// <exception cref="System.ArgumentNullException">dbPath</exception>
-        public static async Task<SQLiteConnection> ConnectToDb(string dbPath)
+        public static async Task<IDbConnection> ConnectToDb(string dbPath)
         {
             if (string.IsNullOrEmpty(dbPath))
             {

MediaBrowser.Server.Implementations/Persistence/SqliteItemRepository.cs

@@ -7,7 +7,6 @@ using MediaBrowser.Model.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Data;
-using System.Data.SQLite;
 using System.IO;
 using System.Linq;
 using System.Threading;
@@ -20,12 +19,12 @@ namespace MediaBrowser.Server.Implementations.Persistence
     /// </summary>
     public class SqliteItemRepository : IItemRepository
     {
-        private SQLiteConnection _connection;
+        private IDbConnection _connection;
 
         private readonly ILogger _logger;
 
         private readonly TypeMapper _typeMapper = new TypeMapper();
-        
+
         /// <summary>
         /// Gets the name of the repository
         /// </summary>
@@ -52,15 +51,15 @@ namespace MediaBrowser.Server.Implementations.Persistence
         /// <summary>
         /// The _save item command
         /// </summary>
-        private SQLiteCommand _saveItemCommand;
+        private IDbCommand _saveItemCommand;
 
         private readonly string _criticReviewsPath;
 
         private SqliteChapterRepository _chapterRepository;
 
-        private SQLiteCommand _deleteChildrenCommand;
-        private SQLiteCommand _saveChildrenCommand;
-        
+        private IDbCommand _deleteChildrenCommand;
+        private IDbCommand _saveChildrenCommand;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="SqliteItemRepository"/> class.
         /// </summary>
@@ -104,7 +103,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
         public async Task Initialize()
         {
             var dbFile = Path.Combine(_appPaths.DataPath, "library.db");
-            
+
             _connection = await SqliteExtensions.ConnectToDb(dbFile).ConfigureAwait(false);
 
             string[] queries = {
@@ -136,29 +135,20 @@ namespace MediaBrowser.Server.Implementations.Persistence
         /// </summary>
         private void PrepareStatements()
         {
-            _saveItemCommand = new SQLiteCommand
-            {
-                CommandText = "replace into TypedBaseItems (guid, type, data) values (@1, @2, @3)"
-            };
-
-            _saveItemCommand.Parameters.Add(new SQLiteParameter("@1"));
-            _saveItemCommand.Parameters.Add(new SQLiteParameter("@2"));
-            _saveItemCommand.Parameters.Add(new SQLiteParameter("@3"));
-
-            _deleteChildrenCommand = new SQLiteCommand
-            {
-                CommandText = "delete from ChildrenIds where ParentId=@ParentId"
-            };
-
-            _deleteChildrenCommand.Parameters.Add(new SQLiteParameter("@ParentId"));
-
-            _saveChildrenCommand = new SQLiteCommand
-            {
-                CommandText = "replace into ChildrenIds (ParentId, ItemId) values (@ParentId, @ItemId)"
-            };
-
-            _saveChildrenCommand.Parameters.Add(new SQLiteParameter("@ParentId"));
-            _saveChildrenCommand.Parameters.Add(new SQLiteParameter("@ItemId"));
+            _saveItemCommand = _connection.CreateCommand();
+            _saveItemCommand.CommandText = "replace into TypedBaseItems (guid, type, data) values (@1, @2, @3)";
+            _saveItemCommand.Parameters.Add(_saveItemCommand, "@1");
+            _saveItemCommand.Parameters.Add(_saveItemCommand, "@2");
+            _saveItemCommand.Parameters.Add(_saveItemCommand, "@3");
+
+            _deleteChildrenCommand = _connection.CreateCommand();
+            _deleteChildrenCommand.CommandText = "delete from ChildrenIds where ParentId=@ParentId";
+            _deleteChildrenCommand.Parameters.Add(_deleteChildrenCommand, "@ParentId");
+
+            _saveChildrenCommand = _connection.CreateCommand();
+            _saveChildrenCommand.CommandText = "replace into ChildrenIds (ParentId, ItemId) values (@ParentId, @ItemId)";
+            _saveChildrenCommand.Parameters.Add(_saveChildrenCommand, "@ParentId");
+            _saveChildrenCommand.Parameters.Add(_saveChildrenCommand, "@ItemId");
         }
 
         /// <summary>
@@ -205,7 +195,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
 
             await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
 
-            SQLiteTransaction transaction = null;
+            IDbTransaction transaction = null;
 
             try
             {
@@ -215,13 +205,13 @@ namespace MediaBrowser.Server.Implementations.Persistence
                 {
                     cancellationToken.ThrowIfCancellationRequested();
 
-                    _saveItemCommand.Parameters[0].Value = item.Id;
-                    _saveItemCommand.Parameters[1].Value = item.GetType().FullName;
-                    _saveItemCommand.Parameters[2].Value = _jsonSerializer.SerializeToBytes(item);
+                    _saveItemCommand.GetParameter(0).Value = item.Id;
+                    _saveItemCommand.GetParameter(1).Value = item.GetType().FullName;
+                    _saveItemCommand.GetParameter(2).Value = _jsonSerializer.SerializeToBytes(item);
 
                     _saveItemCommand.Transaction = transaction;
 
-                    await _saveItemCommand.ExecuteNonQueryAsync(cancellationToken);
+                    _saveItemCommand.ExecuteNonQuery();
                 }
 
                 transaction.Commit();
@@ -274,8 +264,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
             using (var cmd = _connection.CreateCommand())
             {
                 cmd.CommandText = "select type,data from TypedBaseItems where guid = @guid";
-                var guidParam = cmd.Parameters.Add("@guid", DbType.Guid);
-                guidParam.Value = id;
+                cmd.Parameters.Add(cmd, "@guid", DbType.Guid).Value = id;
 
                 using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow))
                 {
@@ -446,7 +435,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
             {
                 cmd.CommandText = "select ItemId from ChildrenIds where ParentId = @ParentId";
 
-                cmd.Parameters.Add("@ParentId", DbType.Guid).Value = parentId;
+                cmd.Parameters.Add(cmd, "@ParentId", DbType.Guid).Value = parentId;
 
                 using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult))
                 {
@@ -479,27 +468,28 @@ namespace MediaBrowser.Server.Implementations.Persistence
 
             await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
 
-            SQLiteTransaction transaction = null;
+            IDbTransaction transaction = null;
 
             try
             {
                 transaction = _connection.BeginTransaction();
 
                 // First delete 
-                _deleteChildrenCommand.Parameters[0].Value = parentId;
+                _deleteChildrenCommand.GetParameter(0).Value = parentId;
                 _deleteChildrenCommand.Transaction = transaction;
-                await _deleteChildrenCommand.ExecuteNonQueryAsync(cancellationToken);
+
+                _deleteChildrenCommand.ExecuteNonQuery();
 
                 foreach (var id in children)
                 {
                     cancellationToken.ThrowIfCancellationRequested();
 
-                    _saveChildrenCommand.Parameters[0].Value = parentId;
-                    _saveChildrenCommand.Parameters[1].Value = id;
+                    _saveChildrenCommand.GetParameter(0).Value = parentId;
+                    _saveChildrenCommand.GetParameter(1).Value = id;
 
                     _saveChildrenCommand.Transaction = transaction;
 
-                    await _saveChildrenCommand.ExecuteNonQueryAsync(cancellationToken);
+                    _saveChildrenCommand.ExecuteNonQuery();
                 }
 
                 transaction.Commit();