Exemplo n.º 1
0
        /// <summary>
        /// Fetch Asset <paramref name="assetID"/> from database
        /// </summary>
        /// <param name="assetID">Asset UUID to fetch</param>
        /// <returns>Return the asset</returns>
        /// <remarks>On failure : throw an exception and attempt to reconnect to database</remarks>
        override protected AssetBase FetchStoredAsset(UUID assetID)
        {
            AssetBase asset = null;

            lock (_dbConnection)
            {
                _dbConnection.CheckConnection();

                MySqlCommand cmd =
                    new MySqlCommand(
                        "SELECT name, description, assetType, local, temporary, data FROM assets WHERE id=?id",
                        _dbConnection.Connection);
                cmd.Parameters.AddWithValue("?id", assetID.ToString());

                try
                {
                    using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow))
                    {
                        if (dbReader.Read())
                        {
                            asset             = new AssetBase();
                            asset.Data        = (byte[])dbReader["data"];
                            asset.Description = (string)dbReader["description"];
                            asset.FullID      = assetID;
                            try
                            {
                                asset.Local = (bool)dbReader["local"];
                            }
                            catch (InvalidCastException)
                            {
                                asset.Local = false;
                            }
                            asset.Name = (string)dbReader["name"];
                            asset.Type = (sbyte)dbReader["assetType"];
                        }
                        dbReader.Close();
                        cmd.Dispose();
                    }
                    if (asset != null)
                    {
                        UpdateAccessTime(asset);
                    }
                }
                catch (Exception e)
                {
                    m_log.ErrorFormat(
                        "[ASSETS DB]: MySql failure fetching asset {0}" + Environment.NewLine + e.ToString()
                        + Environment.NewLine + "Reconnecting", assetID);
                    _dbConnection.Reconnect();
                }
            }
            return(asset);
        }
        /// <summary>
        /// Returns a list of items in a specified folder
        /// </summary>
        /// <param name="folderID">The folder to search</param>
        /// <returns>A list containing inventory items</returns>
        public List <InventoryItemBase> getInventoryInFolder(UUID folderID)
        {
            try
            {
                lock (database)
                {
                    List <InventoryItemBase> items = new List <InventoryItemBase>();

                    database.CheckConnection();

                    MySqlCommand result =
                        new MySqlCommand("SELECT * FROM inventoryitems WHERE parentFolderID = ?uuid",
                                         database.Connection);
                    result.Parameters.AddWithValue("?uuid", folderID.ToString());
                    MySqlDataReader reader = result.ExecuteReader();

                    while (reader.Read())
                    {
                        // A null item (because something went wrong) breaks everything in the folder
                        InventoryItemBase item = readInventoryItem(reader);
                        if (item != null)
                        {
                            items.Add(item);
                        }
                    }

                    reader.Close();
                    result.Dispose();

                    return(items);
                }
            }
            catch (Exception e)
            {
                database.Reconnect();
                m_log.Error(e.ToString());
                return(null);
            }
        }