Java tutorial
/* * Copyright (c) 2012-2016, b3log.org & hacpai.com & fangstar.com * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.b3log.symphony.processor; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Map; import javax.inject.Inject; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang.time.DateFormatUtils; import org.apache.commons.lang.time.DateUtils; import org.b3log.latke.Keys; import org.b3log.latke.servlet.HTTPRequestContext; import org.b3log.latke.servlet.HTTPRequestMethod; import org.b3log.latke.servlet.annotation.After; import org.b3log.latke.servlet.annotation.Before; import org.b3log.latke.servlet.annotation.RequestProcessing; import org.b3log.latke.servlet.annotation.RequestProcessor; import org.b3log.latke.servlet.renderer.freemarker.AbstractFreeMarkerRenderer; import org.b3log.symphony.model.Common; import org.b3log.symphony.model.Option; import org.b3log.symphony.processor.advice.AnonymousViewCheck; import org.b3log.symphony.processor.advice.stopwatch.StopwatchEndAdvice; import org.b3log.symphony.processor.advice.stopwatch.StopwatchStartAdvice; import org.b3log.symphony.service.ArticleQueryService; import org.b3log.symphony.service.CommentQueryService; import org.b3log.symphony.service.OptionQueryService; import org.b3log.symphony.service.UserQueryService; import org.b3log.symphony.util.Filler; import org.b3log.symphony.util.Times; import org.json.JSONObject; /** * Data statistic processor. * * <ul> * <li>Shows data statistic (/statistic), GET</li> * </ul> * * @author <a href="http://88250.b3log.org">Liang Ding</a> * @author <a href="http://vanessa.b3log.org">Liyuan Li</a> * @version 1.2.0.5, Oct 26, 2016 * @since 1.4.0 */ @RequestProcessor public class StatisticProcessor { /** * User query service. */ @Inject private UserQueryService userQueryService; /** * Article query service. */ @Inject private ArticleQueryService articleQueryService; /** * Comment query service. */ @Inject private CommentQueryService commentQueryService; /** * Option query service. */ @Inject private OptionQueryService optionQueryService; /** * Filler. */ @Inject private Filler filler; /** * Month days. */ private final List<String> monthDays = new ArrayList<>(); /** * User counts. */ private final List<Integer> userCnts = new ArrayList<>(); /** * Article counts. */ private final List<Integer> articleCnts = new ArrayList<>(); /** * Comment counts. */ private final List<Integer> commentCnts = new ArrayList<>(); /** * History months. */ private final List<String> months = new ArrayList<>(); /** * History user counts. */ private final List<Integer> historyUserCnts = new ArrayList<>(); /** * History article counts. */ private final List<Integer> historyArticleCnts = new ArrayList<>(); /** * History comment counts. */ private final List<Integer> historyCommentCnts = new ArrayList<>(); /** * Loads statistic data. * * @param request the specified HTTP servlet request * @param response the specified HTTP servlet response * @param context the specified HTTP request context * @throws Exception exception */ @RequestProcessing(value = "/cron/stat", method = HTTPRequestMethod.GET) @Before(adviceClass = StopwatchStartAdvice.class) @After(adviceClass = StopwatchEndAdvice.class) public void loadStatData(final HttpServletRequest request, final HttpServletResponse response, final HTTPRequestContext context) throws Exception { final Date end = new Date(); final Date dayStart = DateUtils.addDays(end, -30); monthDays.clear(); userCnts.clear(); articleCnts.clear(); commentCnts.clear(); months.clear(); historyArticleCnts.clear(); historyCommentCnts.clear(); historyUserCnts.clear(); for (int i = 0; i < 31; i++) { final Date day = DateUtils.addDays(dayStart, i); monthDays.add(DateFormatUtils.format(day, "yyyy-MM-dd")); final int userCnt = userQueryService.getUserCntInDay(day); userCnts.add(userCnt); final int articleCnt = articleQueryService.getArticleCntInDay(day); articleCnts.add(articleCnt); final int commentCnt = commentQueryService.getCommentCntInDay(day); commentCnts.add(commentCnt); } final JSONObject firstAdmin = userQueryService.getAdmins().get(0); final long monthStartTime = Times.getMonthStartTime(firstAdmin.optLong(Keys.OBJECT_ID)); final Date monthStart = new Date(monthStartTime); int i = 1; while (true) { final Date month = DateUtils.addMonths(monthStart, i); if (month.after(end)) { break; } i++; months.add(DateFormatUtils.format(month, "yyyy-MM")); final int userCnt = userQueryService.getUserCntInMonth(month); historyUserCnts.add(userCnt); final int articleCnt = articleQueryService.getArticleCntInMonth(month); historyArticleCnts.add(articleCnt); final int commentCnt = commentQueryService.getCommentCntInMonth(month); historyCommentCnts.add(commentCnt); } } /** * Shows data statistic. * * @param context the specified context * @param request the specified request * @param response the specified response * @throws Exception exception */ @RequestProcessing(value = "/statistic", method = HTTPRequestMethod.GET) @Before(adviceClass = { StopwatchStartAdvice.class, AnonymousViewCheck.class }) @After(adviceClass = StopwatchEndAdvice.class) public void showStatistic(final HTTPRequestContext context, final HttpServletRequest request, final HttpServletResponse response) throws Exception { final AbstractFreeMarkerRenderer renderer = new SkinRenderer(); context.setRenderer(renderer); renderer.setTemplateName("statistic.ftl"); final Map<String, Object> dataModel = renderer.getDataModel(); dataModel.put("monthDays", monthDays); dataModel.put("userCnts", userCnts); dataModel.put("articleCnts", articleCnts); dataModel.put("commentCnts", commentCnts); dataModel.put("months", months); dataModel.put("historyUserCnts", historyUserCnts); dataModel.put("historyArticleCnts", historyArticleCnts); dataModel.put("historyCommentCnts", historyCommentCnts); filler.fillHeaderAndFooter(request, response, dataModel); filler.fillRandomArticles(dataModel); filler.fillHotArticles(dataModel); filler.fillSideTags(dataModel); filler.fillLatestCmts(dataModel); dataModel.put(Common.ONLINE_VISITOR_CNT, optionQueryService.getOnlineVisitorCount()); final JSONObject statistic = optionQueryService.getStatistic(); dataModel.put(Option.CATEGORY_C_STATISTIC, statistic); } }