public String execute()

in jspwiki-main/src/main/java/org/apache/wiki/plugin/RecentChangesPlugin.java [83:219]
95 lines of code
13 McCabe index (conditional complexity)

    public String execute( final Context context, final Map< String, String > params ) throws PluginException {
        final int since = TextUtil.parseIntParameter( params.get( "since" ), DEFAULT_DAYS );
        String spacing  = "4";
        boolean showAuthor = true;
        boolean showChangenote = true;
        String tablewidth = "4";
        
        final Engine engine = context.getEngine();

        //
        //  Which format we want to see?
        //
        if( "compact".equals( params.get( PARAM_FORMAT ) ) ) {
            spacing  = "0";
            showAuthor = false;
            showChangenote = false;
            tablewidth = "2";
        }

        final Calendar sincedate = new GregorianCalendar();
        sincedate.add( Calendar.DAY_OF_MONTH, -since );

        LOG.debug("Calculating recent changes from "+sincedate.getTime());

        // FIXME: Should really have a since date on the getRecentChanges method.
        Collection< Page > changes = engine.getManager( PageManager.class ).getRecentChanges();
        super.initialize( context, params );
        changes = filterWikiPageCollection( changes );
        
        if ( changes != null ) {
            Date olddate = new Date( 0 );

            final DateFormat fmt = getDateFormat( context, params );
            final DateFormat tfmt = getTimeFormat( context, params );

            final Element rt = XhtmlUtil.element( XHTML.table );
            rt.setAttribute( XHTML.ATTR_class, "recentchanges" );
            rt.setAttribute( XHTML.ATTR_cellpadding, spacing );

            for( final Page pageref : changes ) {
                final Date lastmod = pageref.getLastModified();

                if( lastmod.before( sincedate.getTime() ) ) {
                    break;
                }

                if( !isSameDay( lastmod, olddate ) ) {
                    final Element row = XhtmlUtil.element( XHTML.tr );
                    final Element col = XhtmlUtil.element( XHTML.td );
                    col.setAttribute( XHTML.ATTR_colspan, tablewidth );
                    col.setAttribute( XHTML.ATTR_class, "date" );
                    col.addContent( XhtmlUtil.element( XHTML.b, fmt.format( lastmod ) ) );

                    rt.addContent( row );
                    row.addContent( col );
                    olddate = lastmod;
                }

                final String href = context.getURL( pageref instanceof Attachment ? ContextEnum.PAGE_ATTACH.getRequestContext()
                                                                                  : ContextEnum.PAGE_VIEW.getRequestContext(), pageref.getName() );
                Element link = XhtmlUtil.link( href, engine.getManager( RenderingManager.class ).beautifyTitle( pageref.getName() ) );
                final Element row = XhtmlUtil.element( XHTML.tr );
                final Element col = XhtmlUtil.element( XHTML.td );
                col.setAttribute( XHTML.ATTR_width, "30%" );
                col.addContent( link );

                //
                //  Add the direct link to the attachment info.
                //
                if( pageref instanceof Attachment ) {
                    link = XhtmlUtil.link( context.getURL( WikiContext.INFO, pageref.getName() ), null );
                    link.setAttribute( XHTML.ATTR_class, "infolink" );

                    final Element img = XhtmlUtil.img( context.getURL( WikiContext.NONE, "images/attachment_small.png" ), null );
                    link.addContent( img );

                    col.addContent( link );
                }

                row.addContent( col );
                rt.addContent( row );

                if( pageref instanceof Attachment ) {
                    final Element td = XhtmlUtil.element( XHTML.td, tfmt.format( lastmod ) );
                    td.setAttribute( XHTML.ATTR_class, "lastchange" );
                    row.addContent( td );
                } else {
                    final Element infocol = XhtmlUtil.element( XHTML.td );
                    infocol.setAttribute( XHTML.ATTR_class, "lastchange" );
                    infocol.addContent( XhtmlUtil.link( context.getURL( WikiContext.DIFF, pageref.getName(), "r1=-1" ),
                                                        tfmt.format( lastmod ) ) );
                    row.addContent( infocol );
                }

                //
                //  Display author information.
                //
                if( showAuthor ) {
                    final String author = pageref.getAuthor();

                    final Element authorinfo = XhtmlUtil.element( XHTML.td );
                    authorinfo.setAttribute( XHTML.ATTR_class, "author" );

                    if( author != null ) {
                        if( engine.getManager( PageManager.class ).wikiPageExists( author ) ) {
                            authorinfo.addContent( XhtmlUtil.link( context.getURL( WikiContext.VIEW, author ), author ) );
                        } else {
                            authorinfo.addContent( author );
                        }
                    } else {
                        authorinfo.addContent( Preferences.getBundle( context, InternationalizationManager.CORE_BUNDLE )
                                .getString( "common.unknownauthor" ) );
                    }

                    row.addContent( authorinfo );
                }

                // Change note
                if( showChangenote ) {
                    final String changenote = pageref.getAttribute( Page.CHANGENOTE );
                    final Element td_changenote = XhtmlUtil.element( XHTML.td, changenote );
                    td_changenote.setAttribute( XHTML.ATTR_class, "changenote" );
                    row.addContent( td_changenote );
                }

                //  Revert note
/*                
                if( context.hasAdminPermissions() )
                {
                    row.addElement( new td("Revert") );
                }
 */
            }
            return XhtmlUtil.serialize( rt, XhtmlUtil.EXPAND_EMPTY_NODES );
        }
        return "";
    }