Java tutorial
/** * This file is part of Location Service :: Admin. Copyright (C) 2014 Petteri * Kivimki * * Location Service :: Admin 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. * * Location Service :: Admin 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 * Location Service :: Admin. If not, see <http://www.gnu.org/licenses/>. */ package com.pkrete.locationservice.admin.controller.mvc; import com.pkrete.locationservice.admin.model.statistics.SearchEventType; import com.pkrete.locationservice.admin.model.statistics.StatisticsGroup; import com.pkrete.locationservice.admin.model.statistics.StatisticsSearchResult; import com.pkrete.locationservice.admin.service.StatisticsService; import com.pkrete.locationservice.admin.util.StatisticsUtil; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.context.MessageSource; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; /** * The { * * @StatisticsController StatisticsController} class returns the page that * contains a search form for searching usage statistics and also the page * containing the search results. * * @author Petteri Kivimki */ @Controller @RequestMapping("/statistics.htm") public class StatisticsController extends BaseController { @Autowired @Qualifier("statisticsService") private StatisticsService statisticsService; @Autowired @Qualifier("messageSource") private MessageSource messageSource; @RequestMapping(method = RequestMethod.GET) public String initializeForm(HttpServletRequest request, ModelMap model) throws Exception { return "statistics"; } @RequestMapping(method = { RequestMethod.POST }) public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception { Map<String, Object> model = new HashMap<String, Object>(); StatisticsGroup group = StatisticsUtil.parseGroup(request.getParameter("group")); SearchEventType type = StatisticsUtil.parseType(request.getParameter("type")); String from = StatisticsUtil.parseFromDate(request.getParameter("from")); String to = StatisticsUtil.parseToDate(request.getParameter("to")); String order = request.getParameter("order"); String output = request.getParameter("output"); String ownerCode = getOwner(request).getCode(); StatisticsSearchResult results = statisticsService.getStatistics(ownerCode, group, type, from, to, order); if (output != null) { if (output.equals("file")) { response.setContentType("application/txt"); response.addHeader("content-disposition", "attachment;filename=statistics.txt"); return new ModelAndView("statistics_file", "stats", resultsToString(results)); } } model.put("stats", results.getData()); return new ModelAndView("statistics", "model", model); } private String resultsToString(StatisticsSearchResult results) { StringBuilder builder = new StringBuilder(); if (results.getGroup().equals(StatisticsGroup.MONTH)) { builder.append(this.messageSource.getMessage("label.statistics.month", null, null)); } else if (results.getGroup().equals(StatisticsGroup.YEAR)) { builder.append(this.messageSource.getMessage("label.statistics.year", null, null)); } else { builder.append(this.messageSource.getMessage("label.statistics.day", null, null)); } builder.append("\t"); builder.append(this.messageSource.getMessage("label.statistics.results.column1", null, null)); builder.append("\t"); builder.append(this.messageSource.getMessage("label.statistics.results.column2", null, null)); builder.append("\n"); for (Object[] item : results.getData()) { builder.append(item[2]).append("\t"); builder.append(item[0]).append("\t"); builder.append(item[1]).append("\n"); } return builder.toString(); } }