Java tutorial
/* * Computoser is a music-composition algorithm and a website to present the results * Copyright (C) 2012-2014 Bozhidar Bozhanov * * Computoser is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * Computoser 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with Computoser. If not, see <http://www.gnu.org/licenses/>. */ package com.music.scheduled; import javax.inject.Inject; import org.joda.time.DateTimeConstants; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.scheduling.annotation.Scheduled; import org.springframework.stereotype.Component; import com.music.service.PieceService; import com.music.util.SharedData; @Component public class MusicGenerationJob { private static final Logger logger = LoggerFactory.getLogger(MusicGenerationJob.class); @Inject private PieceService service; @Inject private SharedData sharedData; @Scheduled(fixedDelay = 12 * DateTimeConstants.MILLIS_PER_MINUTE) public void generate() { if (sharedData.isGenerateMusic()) { logger.info("Starting piece generation"); //TODO more precise adjustment this according to users' listening activity int piecesNeeded = sharedData.isAdaptGenerationQuantity() && sharedData.getListeningRequests().get() > 10 ? 3 : 1; for (int i = 0; i < piecesNeeded; i++) { long id = service.generatePiece(); sharedData.setMaxId(id); } // reset sharedData.getListeningRequests().set(0); } } }