/** * Shows articles related with a tag with the specified context. * * @param context the specified context * @throws IOException io exception */ @RequestProcessing(value = "/tags/**", method = HTTPRequestMethod.GET) public void showTagArticles(final HTTPRequestContext context) throws IOException { final AbstractFreeMarkerRenderer renderer = new FreeMarkerRenderer(); context.setRenderer(renderer); renderer.setTemplateName("tag-articles.ftl"); final Map<String, Object> dataModel = renderer.getDataModel(); final HttpServletRequest request = context.getRequest(); final HttpServletResponse response = context.getResponse(); try { String requestURI = request.getRequestURI(); if (!requestURI.endsWith("/")) { requestURI += "/"; } String tagTitle = getTagTitle(requestURI); final int currentPageNum = getCurrentPageNum(requestURI, tagTitle); if (-1 == currentPageNum) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } LOGGER.log( Level.DEBUG, "Tag[title={0}, currentPageNum={1}]", new Object[] {tagTitle, currentPageNum}); tagTitle = URLDecoder.decode(tagTitle, "UTF-8"); final JSONObject result = tagQueryService.getTagByTitle(tagTitle); if (null == result) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } final JSONObject tag = result.getJSONObject(Tag.TAG); final String tagId = tag.getString(Keys.OBJECT_ID); final JSONObject preference = preferenceQueryService.getPreference(); Skins.fillLangs( preference.optString(Option.ID_C_LOCALE_STRING), (String) request.getAttribute(Keys.TEMAPLTE_DIR_NAME), dataModel); final int pageSize = preference.getInt(Option.ID_C_ARTICLE_LIST_DISPLAY_COUNT); final int windowSize = preference.getInt(Option.ID_C_ARTICLE_LIST_PAGINATION_WINDOW_SIZE); final List<JSONObject> articles = articleQueryService.getArticlesByTag(tagId, currentPageNum, pageSize); if (articles.isEmpty()) { try { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } catch (final IOException ex) { LOGGER.error(ex.getMessage()); } } final boolean hasMultipleUsers = userQueryService.hasMultipleUsers(); if (hasMultipleUsers) { filler.setArticlesExProperties(request, articles, preference); } else { // All articles composed by the same author final JSONObject author = articleQueryService.getAuthor(articles.get(0)); filler.setArticlesExProperties(request, articles, author, preference); } final int tagArticleCount = tag.getInt(Tag.TAG_PUBLISHED_REFERENCE_COUNT); final int pageCount = (int) Math.ceil((double) tagArticleCount / (double) pageSize); LOGGER.log( Level.TRACE, "Paginate tag-articles[currentPageNum={0}, pageSize={1}, pageCount={2}, windowSize={3}]", new Object[] {currentPageNum, pageSize, pageCount, windowSize}); final List<Integer> pageNums = Paginator.paginate(currentPageNum, pageSize, pageCount, windowSize); LOGGER.log(Level.TRACE, "tag-articles[pageNums={0}]", pageNums); Collections.sort(articles, Comparators.ARTICLE_CREATE_DATE_COMPARATOR); fillPagination(dataModel, pageCount, currentPageNum, articles, pageNums); dataModel.put(Common.PATH, "/tags/" + URLEncoder.encode(tagTitle, "UTF-8")); dataModel.put(Keys.OBJECT_ID, tagId); dataModel.put(Tag.TAG, tag); filler.fillSide(request, dataModel, preference); filler.fillBlogHeader(request, response, dataModel, preference); filler.fillBlogFooter(request, dataModel, preference); statisticMgmtService.incBlogViewCount(request, response); } catch (final ServiceException e) { LOGGER.log(Level.ERROR, e.getMessage(), e); try { response.sendError(HttpServletResponse.SC_NOT_FOUND); } catch (final IOException ex) { LOGGER.error(ex.getMessage()); } } catch (final JSONException e) { LOGGER.log(Level.ERROR, e.getMessage(), e); try { response.sendError(HttpServletResponse.SC_NOT_FOUND); } catch (final IOException ex) { LOGGER.error(ex.getMessage()); } } }