Examples with RssRenderer org.b3log.latke.servlet.renderer.RssRenderer used on opensource projects

Example 1 with RssRenderer

use of org.b3log.latke.servlet.renderer.RssRenderer in project solo by b3log.

the class FeedProcessor method tagArticlesRSS.

/**
     * Tag articles RSS output.
     *
     * @param context the specified context
     * @throws IOException io exception
     */
@RequestProcessing(value = { "/tag-articles-rss.do" }, method = { HTTPRequestMethod.GET, HTTPRequestMethod.HEAD })
public void tagArticlesRSS(final HTTPRequestContext context) throws IOException {
    final HttpServletResponse response = context.getResponse();
    final HttpServletRequest request = context.getRequest();
    final RssRenderer renderer = new RssRenderer();
    context.setRenderer(renderer);
    final String queryString = request.getQueryString();
    if (Strings.isEmptyOrNull(queryString)) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST);
        return;
    }
    final String oIdMap = queryString.split("&")[0];
    final String tagId = oIdMap.split("=")[1];
    final Channel channel = new Channel();
    try {
        final JSONObject tag = tagRepository.get(tagId);
        if (null == tag) {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        final String tagTitle = tag.getString(Tag.TAG_TITLE);
        final JSONObject preference = preferenceQueryService.getPreference();
        if (null == preference) {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        final String blogTitle = preference.getString(Option.ID_C_BLOG_TITLE);
        final String blogSubtitle = preference.getString(Option.ID_C_BLOG_SUBTITLE) + ", " + tagTitle;
        final int outputCnt = preference.getInt(Option.ID_C_FEED_OUTPUT_CNT);
        channel.setTitle(StringEscapeUtils.escapeXml(blogTitle));
        channel.setLastBuildDate(new Date());
        channel.setLink(Latkes.getServePath());
        channel.setAtomLink(Latkes.getServePath() + "/tag-articles-rss.do");
        channel.setGenerator("Solo, ver " + SoloServletListener.VERSION);
        final String localeString = preference.getString(Option.ID_C_LOCALE_STRING);
        final String country = Locales.getCountry(localeString).toLowerCase();
        final String language = Locales.getLanguage(localeString).toLowerCase();
        channel.setLanguage(language + '-' + country);
        channel.setDescription(blogSubtitle);
        final JSONObject tagArticleResult = tagArticleRepository.getByTagId(tagId, 1, outputCnt);
        final JSONArray tagArticleRelations = tagArticleResult.getJSONArray(Keys.RESULTS);
        if (0 == tagArticleRelations.length()) {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        final List<JSONObject> articles = new ArrayList<JSONObject>();
        for (int i = 0; i < tagArticleRelations.length(); i++) {
            final JSONObject tagArticleRelation = tagArticleRelations.getJSONObject(i);
            final String articleId = tagArticleRelation.getString(Article.ARTICLE + "_" + Keys.OBJECT_ID);
            final JSONObject article = articleRepository.get(articleId);
            if (// Skips the unpublished article
            article.getBoolean(Article.ARTICLE_IS_PUBLISHED) && Strings.isEmptyOrNull(article.optString(Article.ARTICLE_VIEW_PWD))) {
                // Skips article with password
                articles.add(article);
            }
        }
        final boolean hasMultipleUsers = userQueryService.hasMultipleUsers();
        String authorName = "";
        if (!hasMultipleUsers && !articles.isEmpty()) {
            authorName = articleQueryService.getAuthor(articles.get(0)).getString(User.USER_NAME);
        }
        final boolean isFullContent = "fullContent".equals(preference.getString(Option.ID_C_FEED_OUTPUT_MODE));
        for (int i = 0; i < articles.size(); i++) {
            Item item = getItemForArticles(articles, hasMultipleUsers, authorName, isFullContent, i);
            channel.addItem(item);
        }
        renderer.setContent(channel.toString());
    } catch (final Exception e) {
        LOGGER.log(Level.ERROR, "Get tag article rss error", e);
        try {
            context.getResponse().sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
        } catch (final IOException ex) {
            throw new RuntimeException(ex);
        }
    }
}

Example 2 with RssRenderer

use of org.b3log.latke.servlet.renderer.RssRenderer in project solo by b3log.

the class FeedProcessor method blogArticlesRSS.

/**
     * Blog articles RSS output.
     *
     * @param context the specified context
     */
@RequestProcessing(value = { "/blog-articles-rss.do" }, method = { HTTPRequestMethod.GET, HTTPRequestMethod.HEAD })
public void blogArticlesRSS(final HTTPRequestContext context) {
    final HttpServletResponse response = context.getResponse();
    final RssRenderer renderer = new RssRenderer();
    context.setRenderer(renderer);
    final Channel channel = new Channel();
    try {
        final JSONObject preference = preferenceQueryService.getPreference();
        if (null == preference) {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        final String blogTitle = preference.getString(Option.ID_C_BLOG_TITLE);
        final String blogSubtitle = preference.getString(Option.ID_C_BLOG_SUBTITLE);
        final int outputCnt = preference.getInt(Option.ID_C_FEED_OUTPUT_CNT);
        channel.setTitle(StringEscapeUtils.escapeXml(blogTitle));
        channel.setLastBuildDate(new Date());
        channel.setLink(Latkes.getServePath());
        channel.setAtomLink(Latkes.getServePath() + "/blog-articles-rss.do");
        channel.setGenerator("Solo, ver " + SoloServletListener.VERSION);
        final String localeString = preference.getString(Option.ID_C_LOCALE_STRING);
        final String country = Locales.getCountry(localeString).toLowerCase();
        final String language = Locales.getLanguage(localeString).toLowerCase();
        channel.setLanguage(language + '-' + country);
        channel.setDescription(blogSubtitle);
        final List<Filter> filters = new ArrayList<Filter>();
        filters.add(new PropertyFilter(Article.ARTICLE_IS_PUBLISHED, FilterOperator.EQUAL, true));
        filters.add(new PropertyFilter(Article.ARTICLE_VIEW_PWD, FilterOperator.EQUAL, ""));
        final Query query = new Query().setCurrentPageNum(1).setPageSize(outputCnt).setFilter(new CompositeFilter(CompositeFilterOperator.AND, filters)).addSort(Article.ARTICLE_UPDATE_DATE, SortDirection.DESCENDING).setPageCount(1);
        final JSONObject articleResult = articleRepository.get(query);
        final JSONArray articles = articleResult.getJSONArray(Keys.RESULTS);
        final boolean hasMultipleUsers = userQueryService.hasMultipleUsers();
        String authorName = "";
        if (!hasMultipleUsers && 0 != articles.length()) {
            authorName = articleQueryService.getAuthor(articles.getJSONObject(0)).getString(User.USER_NAME);
        }
        final boolean isFullContent = "fullContent".equals(preference.getString(Option.ID_C_FEED_OUTPUT_MODE));
        for (int i = 0; i < articles.length(); i++) {
            Item item = getItem(articles, hasMultipleUsers, authorName, isFullContent, i);
            channel.addItem(item);
        }
        renderer.setContent(channel.toString());
    } catch (final Exception e) {
        LOGGER.log(Level.ERROR, "Get blog article rss error", e);
        try {
            context.getResponse().sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
        } catch (final IOException ex) {
            throw new RuntimeException(ex);
        }
    }
}