public int doStartTag()

in app/src/main/java/org/apache/roller/weblogger/ui/core/tags/calendar/CalendarTag.java [112:263]
105 lines of code
15 McCabe index (conditional complexity)

    public int doStartTag( PrintWriter pw ) throws JspException {
        try {
            // build week day names
            this.buildDayNames();

            // day to be displayed
            Date day;
            // set to day to be displayed
            Calendar dayCal;
            // for iterating through days of month
            Calendar cal;
            // for iterating through days of month
            Calendar todayCal;
            // the calendar model
            CalendarModel model;
            
            // ---------------------------------
            // --- initialize date variables ---
            // ---------------------------------
            
            // check for parameter map and target url
            StringTokenizer toker = new StringTokenizer(mModelName,".");
            String tok1 = toker.nextToken();
            if (toker.hasMoreTokens()) {
                String tok2 = toker.nextToken();
                Object bean = pageContext.findAttribute(tok1);
                model = (CalendarModel)PropertyUtils.getProperty(bean, tok2);
            } else {
                model = (CalendarModel)pageContext.findAttribute( mModelName );
            }
            
            // no model specified, nothing to generate
            if (model == null) {
                return SKIP_BODY;
            }
            
            day = model.getDay();
            
            // ceate object to represent today
            todayCal = model.getCalendar();
            todayCal.setTime( new Date() );

            // get Resource Bundle
            ResourceBundle bundle = ResourceBundle.getBundle("ApplicationResources", mLocale);

            // formatter Month-Year title of calendar
            SimpleDateFormat formatTitle = new SimpleDateFormat(bundle.getString("calendar.dateFormat"), mLocale);
            formatTitle.setTimeZone(todayCal.getTimeZone());
            
            // go back to first day in month
            cal = model.getCalendar();
            day = DateUtil.getNoonOfDay(day, cal);
            cal.set( Calendar.DAY_OF_MONTH, cal.getMinimum(Calendar.DAY_OF_MONTH) );
            
            // Go back to first day of week before that (Sunday in US, Monday in France, e.g.)
            // in the calendar
            while ( cal.get( Calendar.DAY_OF_WEEK ) != cal.getFirstDayOfWeek() ) {
                cal.add( Calendar.DATE, -1 );
            }
            
            // create table of 5 weeks, 7 days per row
            dayCal = model.getCalendar();
            dayCal.setTime( day );
            
            // -------------------------
            // --- draw the calendar ---
            // -------------------------
            pw.print("<table cellspacing=\"0\" border=\"0\" ");
            pw.print(" summary=\""
                    +bundle.getString("calendar.summary")
                    +"\" class=\"hCalendarTable"
                    +mClassSuffix+"\">");
            pw.print("<tr>");
            pw.print("<td colspan=\"7\" align=\"center\" "+
                    "class=\"hCalendarMonthYearRow"+mClassSuffix+"\">");
            if (model.getPrevMonth() != null) {
                pw.print("<a href=\"" + model.computePrevMonthUrl()
                        + "\" title=\"" + bundle.getString("calendar.prev")
                        + "\" class=\"hCalendarNavBar\">&laquo;</a> ");
            }
            pw.print( formatTitle.format(day) );
            if (model.getNextMonth() != null) {
                pw.print(" <a href=\"" + model.computeNextMonthUrl()
                + "\" title=\"" + bundle.getString("calendar.next")
                + "\" class=\"hCalendarNavBar\">&raquo;</a>");
            }
            pw.print("</td></tr>");
            
            // emit the HTML calendar
            for ( int w=-1; w<6; w++ ) {
                pw.print("<tr>");
                for ( int d=0; d<7; d++ ) {
                    if ( w == -1 ) {
                        pw.print(
                                "<th class=\"hCalendarDayNameRow"
                                +mClassSuffix+"\" align=\"center\">");
                        pw.print( mDayNames[d] );
                        pw.print("</th>");
                        continue;
                    }
                    
                    // determine URL for this calendar day
                    Date tddate = cal.getTime();
                    String url = model.computeUrl(tddate, false, false);
                    String content = model.getContent( tddate );

                    // day is in calendar month
                    if ((cal.get(Calendar.MONTH) == dayCal.get(Calendar.MONTH))
                            && (cal.get(Calendar.YEAR) == dayCal.get(Calendar.YEAR))) {
                        // day is today then use today style
                        if ((          cal.get(Calendar.DAY_OF_MONTH)
                                == todayCal.get(Calendar.DAY_OF_MONTH))
                                && (        cal.get(Calendar.MONTH)
                                == todayCal.get(Calendar.MONTH))
                                && (        cal.get(Calendar.YEAR)
                                == todayCal.get(Calendar.YEAR))) {
                            printToday(pw, cal, url, content);
                        } else {
                            printDayInThisMonth(pw, cal, url, content);
                        }
                    } else {
                        // apply day-not-in-month style ;-)
                        printDayNotInMonth(pw, cal);
                    }
                    
                    // increment calendar by one day
                    cal.add( Calendar.DATE, 1 );
                }
                pw.print("</tr>");
            }
            
            pw.print("<tr class=\"hCalendarNextPrev"
                    +mClassSuffix+"\">");
            pw.print("<td colspan=\"7\" align=\"center\">");
            
            pw.print("<a href=\""+model.computeTodayMonthUrl()
            +"\" class=\"hCalendarNavBar\">"
                    +bundle.getString("calendar.today")
                    +"</a>");
            
            pw.print("</td>");
            pw.print("</tr>");
            
            pw.print("</table>");
        } catch (Exception e) {
            pw.print("<span class=\"error\">");
            pw.print("<p><b>An ERROR has occured CalendarTag</b></p>");
            pw.print("</span>");
            mLogger.error("Calendar tag exception",e);
        }
        return Tag.SKIP_BODY;
    }