Examples of org.apache.myfaces.dateformat.SimpleDateFormatter

org.apache.myfaces.dateformat.SimpleDateFormatter
A reimplementation of the java.text.SimpleDateFormat class.
This class has been created for use with the tomahawk InputCalendar component. It exists for the following reasons:
- The java.text.SimpleDateFormat class is simply broken with respect to "week of year" functionality.
- The inputCalendar needs a javascript equivalent of SimpleDateFormat in order to process data in the popup calendar. But it is hard to unit-test javascript code. By maintaining a version in Java that is unit-tested, then making the javascript version a direct "port" of that code the javascript gets improved reliability.
- Documentation is necessary for this code, but it is not desirable to add lots of docs to a javascript file that is downloaded. The javascript version can simply reference the documentation here.
Note that the JODA project also provides a SimpleDateFormat implementation, but that does not support firstDayOfWeek functionality. In any case, it is not desirable to add a dependency from tomahawk on JODA just for the InputCalendar.
This implementation does extend the SimpleDateFormat class by adding the JODA "xxxx" yearOfWeekYear format option, as this is missing in the standard SimpleDateFormat class.
The parse methods also return null on error rather than throw an exception.
The code here was originally written in javascript (date.js), and has been ported to java.
At the current time, the following format options are NOT supported: DFkKSzZ.

Week Based Calendars

ISO standard ISO-8601 defines a calendaring system based not upon year/month/day_in_month but instead year/week/day_in_week. This is particularly popular in embedded systems as date arithmetic is much simpler; there are no irregular month lengths to handle.
The only tricky part is mapping to and from year/month/day formats. Unfortunately, while java.text.SimpleDateFormat does support a "ww" week format character, it has a number of flaws.
Weeks are always complete and discrete, ie week yyyy-ww always has 7 days in it, and never "shares" days with yyyy-(ww+1). However to achieve this, the last week of a year might include a few days of the next year, or the last few days of a year might be counted as part of the first week of the following year. The decision is made depending on which year the "majority" of days in that week belong to.
With ISO-8601, a week always starts on a monday. However many countries use a different convention, starting weeks on saturday, sunday or monday. This class supports setting the firstDayOfWeek. @since 1.1.7 @author Simon Kitching (latest modification by $Author: grantsmith $) @version $Revision: 472638 $ $Date: 2006-11-08 15:54:13 -0500 (Wed, 08 Nov 2006) $

                String formatStr = createJSPopupFormat(facesContext, popupDateFormat);
                Locale locale = facesContext.getViewRoot().getLocale();
                Calendar timeKeeper = Calendar.getInstance(locale);
                int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(locale);
                SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                
                Date date = dateFormat.parse(s); 
                if (date != null) {
                    return date;
                }
                FacesMessage msg = MessageUtils.getMessage(CONVERSION_MESSAGE_ID,new Object[]{
                        uiComponent.getId(),s});
                throw new ConverterException(msg);
            }
            else
            {
                DateFormat dateFormat = createStandardDateFormat(facesContext);
                dateFormat.setLenient(false);
                try
                {
                    Date date = dateFormat.parse(s); 
                    return date;
                }
                catch (ParseException e)
                {
                    FacesMessage msg = MessageUtils.getMessage(CONVERSION_MESSAGE_ID,new Object[]{

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                Locale locale = facesContext.getViewRoot().getLocale();
                Calendar timeKeeper = Calendar.getInstance(locale);
                int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(locale);


                SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                return dateFormat.format(date);
            }
            else
            {
                DateFormat dateFormat = createStandardDateFormat(facesContext);
                dateFormat.setLenient(false);
                return dateFormat.format(date);
            }
        }

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                    String formatStr = CalendarDateTimeConverter.createJSPopupFormat(facesContext, inputCalendar.getPopupDateFormat());
                    Calendar timeKeeper = Calendar.getInstance(currentLocale);
                    int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                    org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(currentLocale);
    
                    SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                    value = dateFormat.parse(textValue);
                }
                catch (IllegalArgumentException illegalArgumentException)
                {
                    value = null;
                }

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                String formatStr = createJSPopupFormat(facesContext, popupDateFormat);
                Locale locale = facesContext.getViewRoot().getLocale();
                Calendar timeKeeper = Calendar.getInstance(locale);
                int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(locale);
                SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                
                Date date = dateFormat.parse(s); 
                if (date != null) {
                    return date;
                }
                FacesMessage msg = MessageUtils.getMessage(Constants.TOMAHAWK_DEFAULT_BUNDLE,FacesMessage.SEVERITY_ERROR,CONVERSION_MESSAGE_ID,new Object[]{
                        uiComponent.getId(),s},facesContext);
                throw new ConverterException(msg);
            }
            else
            {
                DateFormat dateFormat = createStandardDateFormat(facesContext);
                dateFormat.setLenient(false);
                try
                {
                    Date date = dateFormat.parse(s); 
                    return date;
                }
                catch (ParseException e)
                {
                    FacesMessage msg = MessageUtils.getMessage(Constants.TOMAHAWK_DEFAULT_BUNDLE,FacesMessage.SEVERITY_ERROR,CONVERSION_MESSAGE_ID,new Object[]{

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                Locale locale = facesContext.getViewRoot().getLocale();
                Calendar timeKeeper = Calendar.getInstance(locale);
                int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(locale);


                SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                return dateFormat.format(date);
            }
            else
            {
                DateFormat dateFormat = createStandardDateFormat(facesContext);
                dateFormat.setLenient(false);
                return dateFormat.format(date);
            }
        }

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                Locale locale = facesContext.getViewRoot().getLocale();
                Calendar timeKeeper = Calendar.getInstance(locale);
                int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(locale);


                SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                return dateFormat.format(date);
            }
            else
            {
                DateFormat dateFormat = createStandardDateFormat(facesContext);
                dateFormat.setLenient(false);
                return dateFormat.format(date);
            }
        }

View Full Code Here

                    String formatStr = CalendarDateTimeConverter.createJSPopupFormat(facesContext, inputCalendar.getPopupDateFormat());
                    Calendar timeKeeper = Calendar.getInstance(currentLocale);
                    int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                    org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(currentLocale);
    
                    SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                    value = dateFormat.parse(textValue);
                }
                catch (IllegalArgumentException illegalArgumentException)
                {
                    value = null;
                }

View Full Code Here

                String formatStr = createJSPopupFormat(facesContext, popupDateFormat);
                Locale locale = facesContext.getViewRoot().getLocale();
                Calendar timeKeeper = Calendar.getInstance(locale);
                int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(locale);
                SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                
                Date date = dateFormat.parse(s); 
                if (date != null) {
                    return date;
                }
                FacesMessage msg = MessageUtils.getMessage(Constants.TOMAHAWK_DEFAULT_BUNDLE,FacesMessage.SEVERITY_ERROR,CONVERSION_MESSAGE_ID,new Object[]{
                        uiComponent.getId(),s},facesContext);
                throw new ConverterException(msg);
            }
            else
            {
                DateFormat dateFormat = createStandardDateFormat(facesContext);
                dateFormat.setLenient(false);
                try
                {
                    Date date = dateFormat.parse(s); 
                    return date;
                }
                catch (ParseException e)
                {
                    FacesMessage msg = MessageUtils.getMessage(Constants.TOMAHAWK_DEFAULT_BUNDLE,FacesMessage.SEVERITY_ERROR,CONVERSION_MESSAGE_ID,new Object[]{

View Full Code Here

                    String formatStr = CalendarDateTimeConverter.createJSPopupFormat(facesContext, inputCalendar.getPopupDateFormat());
                    Calendar timeKeeper = Calendar.getInstance(currentLocale);
                    int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                    org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(currentLocale);
    
                    SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                    value = dateFormat.parse(textValue);
                }
                catch (IllegalArgumentException illegalArgumentException)
                {
                    value = null;
                }

View Full Code Here

                String formatStr = createJSPopupFormat(facesContext, popupDateFormat);
                Locale locale = facesContext.getViewRoot().getLocale();
                Calendar timeKeeper = Calendar.getInstance(locale);
                int firstDayOfWeek = timeKeeper.getFirstDayOfWeek() - 1;
                org.apache.myfaces.dateformat.DateFormatSymbols symbols = new org.apache.myfaces.dateformat.DateFormatSymbols(locale);
                SimpleDateFormatter dateFormat = new SimpleDateFormatter(formatStr, symbols, firstDayOfWeek);
                
                Date date = dateFormat.parse(s); 
                if (date != null) {
                    return date;
                }
                FacesMessage msg = MessageUtils.getMessage(Constants.TOMAHAWK_DEFAULT_BUNDLE,FacesMessage.SEVERITY_ERROR,CONVERSION_MESSAGE_ID,new Object[]{
                        uiComponent.getId(),s},facesContext);
                throw new ConverterException(msg);
            }
            else
            {
                DateFormat dateFormat = createStandardDateFormat(facesContext);
                dateFormat.setLenient(false);
                try
                {
                    Date date = dateFormat.parse(s); 
                    return date;
                }
                catch (ParseException e)
                {
                    FacesMessage msg = MessageUtils.getMessage(Constants.TOMAHAWK_DEFAULT_BUNDLE,FacesMessage.SEVERITY_ERROR,CONVERSION_MESSAGE_ID,new Object[]{

View Full Code Here

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Examples of org.apache.myfaces.dateformat.SimpleDateFormatter

Week Based Calendars

Related Classes of org.apache.myfaces.dateformat.SimpleDateFormatter