Java tutorial
/* * Copyright (c) 2004-2015 YAMJ Members * https://github.com/organizations/YAMJ/teams * * This file is part of the Yet Another Media Jukebox (YAMJ). * * YAMJ 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 3 of the License, or * any later version. * * YAMJ 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 YAMJ. If not, see <http://www.gnu.org/licenses/>. * * Web: https://github.com/YAMJ/yamj-v3 * */ package org.yamj.core.database.service; import java.util.Collections; import java.util.Date; import java.util.List; import java.util.Map; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import org.yamj.core.database.dao.CommonDao; import org.yamj.core.database.model.ExecutionTask; @Service("executionTaskStorageService") public class ExecutionTaskStorageService { private static final Logger LOG = LoggerFactory.getLogger(ExecutionTaskStorageService.class); @Autowired private CommonDao commonDao; @Transactional public void storeExecutionTask(ExecutionTask executionTask) { ExecutionTask stored = commonDao.getByNaturalIdCaseInsensitive(ExecutionTask.class, "name", executionTask.getName()); if (stored == null) { this.commonDao.saveEntity(executionTask); LOG.info("Stored: {}", executionTask); } else { // check if next execution date must be reset boolean resetNextExecution = false; if (executionTask.getNextExecution().after(stored.getNextExecution())) { resetNextExecution = true; } else if (!executionTask.getIntervalType().equals(stored.getIntervalType())) { resetNextExecution = true; } else if (executionTask.getDelay() != stored.getDelay()) { resetNextExecution = true; } stored.setTaskName(executionTask.getTaskName()); stored.setOptions(executionTask.getOptions()); stored.setIntervalType(executionTask.getIntervalType()); stored.setDelay(executionTask.getDelay()); if (resetNextExecution) { stored.setNextExecution(executionTask.getNextExecution()); } this.commonDao.updateEntity(stored); LOG.info("Updated: {}", stored); } } @Transactional(readOnly = true) public List<ExecutionTask> getTasksForExecution() { String query = "from ExecutionTask et where et.nextExecution <= :actualDate"; Map<String, Object> params = Collections.singletonMap("actualDate", (Object) new Date()); return this.commonDao.findByNamedParameters(query, params); } @Transactional public void updateEntity(Object entity) { this.commonDao.updateEntity(entity); } @Transactional public void deleteEntity(Object entity) { this.commonDao.deleteEntity(entity); } }