/* * UltraStar Deluxe - Karaoke Game * * UltraStar Deluxe is the legal property of its developers, whose names * are too numerous to list here. Please refer to the COPYRIGHT * file distributed with this source distribution. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. * * $URL$ * $Id$ */ #include "songloader.hpp" #include "songloading_strategy_txt.hpp" #include "songloading_strategy_xml.hpp" namespace usdx { log4cxx::LoggerPtr Songloader::log = log4cxx::Logger::getLogger("usdx.base.songloading.Songloader"); Songloader *Songloader::instance = NULL; Songloader::Songloader(void) { // add different strategies to map strategies[".txt"] = new SongloadingStrategyTxt(); strategies[".xml"] = new SongloadingStrategyXml(); } void remove_element(std::pair e) { delete e.second; e.second = NULL; } Songloader::~Songloader(void) { // clear memory for all elements in the map std::for_each(strategies.begin(), strategies.end(), remove_element); strategies.clear(); // remove reference from singleton to make regeneration possible instance = NULL; } Songloader *Songloader::get_instance(void) { if (instance == NULL) { instance = new Songloader(); } return instance; } Song *Songloader::load_header(std::string filename) { std::string extension = ""; size_t found = filename.rfind('.'); if (found != std::string::npos) { extension = filename.substr(found); } std::map::iterator it = strategies.find(extension); if (it == strategies.end()) { LOG4CXX_WARN(log, "No SongloadingStrategy found for file extension: '" << extension << "'"); throw NoStrategyException("Unknown file format."); } return it->second->load_header(filename); } Song* Songloader::load_song(Song* song) { std::string extension = ""; size_t found = song->get_filename().rfind('.'); if (found != std::string::npos) { extension = song->get_filename().substr(found); } std::map::iterator it = strategies.find(extension); if (it == strategies.end()) { LOG4CXX_WARN(log, "No SongloadingStrategy found for file extension: '" << extension << "'"); throw NoStrategyException("Unknown file format."); } return it->second->load_song(song); } };