calculate similarity at database level

MediaBrowser.ServerApplication/Native/DbConnector.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Data;
+using System.Data.SQLite;
+using System.Threading.Tasks;
+using MediaBrowser.Model.Logging;
+using MediaBrowser.Server.Implementations.Persistence;
+
+namespace MediaBrowser.ServerApplication.Native
+{
+    public class DbConnector : IDbConnector
+    {
+        private readonly ILogger _logger;
+
+        public DbConnector(ILogger logger)
+        {
+            _logger = logger;
+        }
+
+        public void BindSimilarityScoreFunction(IDbConnection connection)
+        {
+            SqliteExtensions.BindGetSimilarityScore(connection, _logger);
+        }
+
+        public async Task<IDbConnection> Connect(string dbPath)
+        {
+            try
+            {
+                return await SqliteExtensions.ConnectToDb(dbPath, _logger).ConfigureAwait(false);
+            }
+            catch (Exception ex)
+            {
+                _logger.ErrorException("Error opening database {0}", ex, dbPath);
+
+                throw;
+            }
+        }
+    }
+}

MediaBrowser.ServerApplication/Native/SqliteExtensions.cs

@@ -1,71 +0,0 @@
-using System;
-using System.Data;
-using System.Data.SQLite;
-using System.Threading.Tasks;
-using MediaBrowser.Model.Logging;
-using MediaBrowser.Server.Implementations.Persistence;
-
-namespace MediaBrowser.ServerApplication.Native
-{
-    /// <summary>
-    /// Class SQLiteExtensions
-    /// </summary>
-    static class SqliteExtensions
-    {
-        /// <summary>
-        /// Connects to db.
-        /// </summary>
-        /// <param name="dbPath">The db path.</param>
-        /// <param name="logger">The logger.</param>
-        /// <returns>Task{IDbConnection}.</returns>
-        /// <exception cref="System.ArgumentNullException">dbPath</exception>
-        public static async Task<IDbConnection> ConnectToDb(string dbPath, ILogger logger)
-        {
-            if (string.IsNullOrEmpty(dbPath))
-            {
-                throw new ArgumentNullException("dbPath");
-            }
-
-            logger.Info("Sqlite {0} opening {1}", SQLiteConnection.SQLiteVersion, dbPath);
-
-            var connectionstr = new SQLiteConnectionStringBuilder
-            {
-                PageSize = 4096,
-                CacheSize = 2000,
-                SyncMode = SynchronizationModes.Normal,
-                DataSource = dbPath,
-                JournalMode = SQLiteJournalModeEnum.Wal
-            };
-
-            var connection = new SQLiteConnection(connectionstr.ConnectionString);
-
-            await connection.OpenAsync().ConfigureAwait(false);
-
-            return connection;
-        }
-    }
-
-    public class DbConnector : IDbConnector
-    {
-        private readonly ILogger _logger;
-
-        public DbConnector(ILogger logger)
-        {
-            _logger = logger;
-        }
-
-        public async Task<IDbConnection> Connect(string dbPath)
-        {
-            try
-            {
-                return await SqliteExtensions.ConnectToDb(dbPath, _logger).ConfigureAwait(false);
-            }
-            catch (Exception ex)
-            {
-                _logger.ErrorException("Error opening database {0}", ex, dbPath);
-
-                throw;
-            }
-        }
-    }
-}