public String execute()

in jspwiki-main/src/main/java/org/apache/wiki/plugin/WeblogPlugin.java [163:262]
70 lines of code
13 McCabe index (conditional complexity)

    public String execute( final Context context, final Map< String, String > params ) throws PluginException {
        final Calendar   startTime;
        final Calendar   stopTime;
        int        numDays = DEFAULT_DAYS;
        final Engine engine = context.getEngine();
        final AuthorizationManager mgr = engine.getManager( AuthorizationManager.class );

        //
        //  Parse parameters.
        //
        String days;
        final DateFormat entryFormat;
        String startDay;
        boolean hasComments = false;
        int maxEntries;
        String weblogName;

        if( (weblogName = params.get(PARAM_PAGE)) == null ) {
            weblogName = context.getPage().getName();
        }

        if( (days = context.getHttpParameter( "weblog."+PARAM_DAYS )) == null ) {
            days = params.get( PARAM_DAYS );
        }

        if( ( params.get(PARAM_ENTRYFORMAT)) == null ) {
            entryFormat = Preferences.getDateFormat( context, TimeFormat.DATETIME );
        } else {
            entryFormat = new SimpleDateFormat( params.get(PARAM_ENTRYFORMAT) );
        }

        if( days != null ) {
            if( days.equalsIgnoreCase("all") ) {
                numDays = Integer.MAX_VALUE;
            } else {
                numDays = TextUtil.parseIntParameter( days, DEFAULT_DAYS );
            }
        }


        if( (startDay = params.get(PARAM_STARTDATE)) == null ) {
            startDay = context.getHttpParameter( "weblog."+PARAM_STARTDATE );
        }

        if( TextUtil.isPositive( params.get(PARAM_ALLOWCOMMENTS) ) ) {
            hasComments = true;
        }

        maxEntries = TextUtil.parseIntParameter( params.get(PARAM_MAXENTRIES), Integer.MAX_VALUE );

        //
        //  Determine the date range which to include.
        //
        startTime = Calendar.getInstance();
        stopTime  = Calendar.getInstance();

        if( startDay != null ) {
            final SimpleDateFormat fmt = new SimpleDateFormat( DEFAULT_DATEFORMAT );
            try {
                final Date d = fmt.parse( startDay );
                startTime.setTime( d );
                stopTime.setTime( d );
            } catch( final ParseException e ) {
                return "Illegal time format: "+ TextUtil.replaceEntities(startDay);
            }
        }

        //
        //  Mark this to be a weblog
        //
        context.getPage().setAttribute(ATTR_ISWEBLOG, "true");

        //
        //  We make a wild guess here that nobody can do millisecond accuracy here.
        //
        startTime.add( Calendar.DAY_OF_MONTH, -numDays );
        startTime.set( Calendar.HOUR, 0 );
        startTime.set( Calendar.MINUTE, 0 );
        startTime.set( Calendar.SECOND, 0 );
        stopTime.set( Calendar.HOUR, 23 );
        stopTime.set( Calendar.MINUTE, 59 );
        stopTime.set( Calendar.SECOND, 59 );

        final StringBuilder sb = new StringBuilder();
        final List< Page > blogEntries = findBlogEntries( engine, weblogName, startTime.getTime(), stopTime.getTime() );
        blogEntries.sort( new PageDateComparator() );

        sb.append("<div class=\"weblog\">\n");

        for( final Iterator< Page > i = blogEntries.iterator(); i.hasNext() && maxEntries-- > 0 ; ) {
            final Page p = i.next();
            if( mgr.checkPermission( context.getWikiSession(), new PagePermission(p, PagePermission.VIEW_ACTION) ) ) {
                addEntryHTML( context, entryFormat, hasComments, sb, p, params );
            }
        }

        sb.append("</div>\n");

        return sb.toString();
    }