public String generateBlogRSS()

in jspwiki-main/src/main/java/org/apache/wiki/rss/DefaultRSSGenerator.java [309:386]
59 lines of code
12 McCabe index (conditional complexity)

    public String generateBlogRSS( final Context wikiContext, final List< Page > changed, final Feed feed ) {
        LOG.debug( "Generating RSS for blog, size={}", changed.size() );

        final String ctitle = m_engine.getManager( VariableManager.class ).getVariable( wikiContext, PROP_CHANNEL_TITLE );
        feed.setChannelTitle(Objects.requireNonNullElseGet(ctitle, () -> m_engine.getApplicationName() + ":" + wikiContext.getPage().getName()));

        feed.setFeedURL( wikiContext.getViewURL( wikiContext.getPage().getName() ) );

        final String language = m_engine.getManager( VariableManager.class ).getVariable( wikiContext, PROP_CHANNEL_LANGUAGE );
        if( language != null ) {
            feed.setChannelLanguage( language );
        } else {
            feed.setChannelLanguage( m_channelLanguage );
        }

        final String channelDescription = m_engine.getManager( VariableManager.class ).getVariable( wikiContext, PROP_CHANNEL_DESCRIPTION );
        if( channelDescription != null ) {
            feed.setChannelDescription( channelDescription );
        }

        changed.sort( new PageTimeComparator() );

        int items = 0;
        for( final Iterator< Page > i = changed.iterator(); i.hasNext() && items < 15; items++ ) {
            final Page page = i.next();
            final Entry e = new Entry();
            e.setPage( page );
            final String url;

            if( page instanceof Attachment ) {
                url = m_engine.getURL( ContextEnum.PAGE_ATTACH.getRequestContext(), page.getName(),null );
            } else {
                url = m_engine.getURL( ContextEnum.PAGE_VIEW.getRequestContext(), page.getName(),null );
            }

            e.setURL( url );

            //  Title
            String pageText = m_engine.getManager( PageManager.class ).getPureText( page.getName(), WikiProvider.LATEST_VERSION );

            String title = "";
            final int firstLine = pageText.indexOf('\n');

            if( firstLine > 0 ) {
                title = pageText.substring( 0, firstLine ).trim();
            }

            if( title.isEmpty() ) {
                title = page.getName();
            }

            // Remove wiki formatting
            while( title.startsWith("!") ) {
                title = title.substring(1);
            }

            e.setTitle( title );

            //  Description
            if( firstLine > 0 ) {
                int maxlen = pageText.length();
                if( maxlen > MAX_CHARACTERS ) {
                    maxlen = MAX_CHARACTERS;
                }
                pageText = m_engine.getManager( RenderingManager.class ).textToHTML( wikiContext, pageText.substring( firstLine + 1, maxlen ).trim() );
                if( maxlen == MAX_CHARACTERS ) {
                    pageText += "...";
                }
                e.setContent( pageText );
            } else {
                e.setContent( title );
            }
            e.setAuthor( getAuthor(page) );
            feed.addEntry( e );
        }

        return feed.getString();
    }