public final int doWikiStartTag()

in jspwiki-main/src/main/java/org/apache/wiki/tags/CalendarTag.java [272:355]
65 lines of code
8 McCabe index (conditional complexity)

    public final int doWikiStartTag() throws IOException {
        final Engine engine = m_wikiContext.getEngine();
        final JspWriter out = pageContext.getOut();
        final Calendar cal = Calendar.getInstance();
        final Calendar prevCal = Calendar.getInstance();
        final Calendar nextCal = Calendar.getInstance();

        //
        //  Check if there is a parameter in the request to set the date.
        //
        String calendarDate = pageContext.getRequest().getParameter( "calendar.date" );
        if( calendarDate == null ) {
            calendarDate = pageContext.getRequest().getParameter( "weblog.startDate" );
        }
        
        if( calendarDate != null ) {
            try {
                final Date d = m_dateFormat.parse( calendarDate );
                cal.setTime( d );
                prevCal.setTime( d );
                nextCal.setTime( d );
            } catch( final ParseException e ) {
                LOG.warn( "date format wrong: " + calendarDate );
            }
        }

        cal.set( Calendar.DATE, 1 );     // First, set to first day of month
        prevCal.set( Calendar.DATE, 1 );
        nextCal.set( Calendar.DATE, 1 );

        prevCal.add(Calendar.MONTH, -1); // Now move to first day of previous month
        nextCal.add(Calendar.MONTH, 1);  // Now move to first day of next month

        out.write( "<table class=\"calendar\">\n" );

        final HttpServletRequest httpServletRequest = m_wikiContext.getHttpRequest();
        final String queryString = HttpUtil.safeGetQueryString( httpServletRequest, engine.getContentEncoding() );
        out.write( "<tr>"+
                   getMonthNaviLink(prevCal,"&lt;&lt;", queryString)+
                   "<td colspan=5 class=\"month\">"+
                   getMonthLink( cal )+
                   "</td>"+
                   getMonthNaviLink(nextCal,"&gt;&gt;", queryString)+ 
                   "</tr>\n"
                 );

        final int month = cal.get( Calendar.MONTH );
        cal.set( Calendar.DAY_OF_WEEK, Calendar.MONDAY ); // Then, find the first day of the week.

        out.write( "<tr><td class=\"weekdays\">Mon</td>"+
                   "<td class=\"weekdays\">Tue</td>"+
                   "<td class=\"weekdays\">Wed</td>"+
                   "<td class=\"weekdays\">Thu</td>"+
                   "<td class=\"weekdays\">Fri</td>"+
                   "<td class=\"weekdays\">Sat</td>"+
                   "<td class=\"weekdays\">Sun</td></tr>\n" );

        boolean noMoreDates = false;
        while( !noMoreDates ) {
            out.write( "<tr>" );
            
            for( int i = 0; i < 7; i++ ) {
                final int mth = cal.get( Calendar.MONTH );

                if( mth != month ) {
                    out.write("<td class=\"othermonth\">"+cal.get(Calendar.DATE)+"</td>");
                } else {
                    out.write( getDayLink(cal) );
                }

                cal.add( Calendar.DATE, 1 );
            }

            if( cal.get( Calendar.MONTH ) != month ) {
                noMoreDates = true;
            }

            out.write( "</tr>\n" );
        }

        out.write( "</table>\n" );

        return EVAL_BODY_INCLUDE;
    }