Java tutorial
/* * 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 3 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. If not, see <http://www.gnu.org/licenses/>. */ package com.angstoverseer.service.command.handler.impl; import com.angstoverseer.model.weight.Weight; import com.angstoverseer.persistence.weight.WeightDao; import com.angstoverseer.service.command.handler.Command; import com.angstoverseer.service.command.handler.dto.CommandParameters; import com.angstoverseer.service.command.parser.CommandParser; import com.angstoverseer.service.command.parser.dto.ParsedCommand; import org.apache.commons.lang.math.NumberUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; @Component public class WeightWatchCommand implements Command { @Autowired private WeightDao weightDao; @Autowired private CommandParser commandParser; @Override public String getName() { return "w"; } @Override public String execute(CommandParameters commandParameters) { final ParsedCommand parsedCommand = commandParser.parse(commandParameters); String value = parsedCommand.getDescription().toString().trim(); if (!NumberUtils.isNumber(value)) { return "Error. Not a number: " + parsedCommand.getDescription(); } Weight weight = new Weight(); weight.setValue(new Double(value)); weight.setDateTime(parsedCommand.getDateTime()); weightDao.save(weight); return "Weight watched."; } }