Examples of java.text.DateFormat

java.text.DateFormat
DateFormat is an abstract class for date/time formatting subclasses which formats and parses dates or time in a language-independent manner. The date/time formatting subclass, such as SimpleDateFormat, allows for formatting (i.e., date -> text), parsing (text -> date), and normalization. The date is represented as a Date object or as the milliseconds since January 1, 1970, 00:00:00 GMT.
DateFormat provides many class methods for obtaining default date/time formatters based on the default or a given locale and a number of formatting styles. The formatting styles include FULL, LONG, MEDIUM, and SHORT. More detail and examples of using these styles are provided in the method descriptions.
DateFormat helps you to format and parse dates for any locale. Your code can be completely independent of the locale conventions for months, days of the week, or even the calendar format: lunar vs. solar.
To format a date for the current Locale, use one of the static factory methods:
```
 myString = DateFormat.getDateInstance().format(myDate); 
```
If you are formatting multiple dates, it is more efficient to get the format and use it multiple times so that the system doesn't have to fetch the information about the local language and country conventions multiple times.
```
 DateFormat df = DateFormat.getDateInstance(); for (int i = 0; i < myDate.length; ++i) { output.println(df.format(myDate[i]) + "; "); } 
```
To format a date for a different Locale, specify it in the call to getDateInstance().
```
 DateFormat df = DateFormat.getDateInstance(DateFormat.LONG, Locale.FRANCE); 
```
You can use a DateFormat to parse also.
```
 myDate = df.parse(myString); 
```
Use getDateInstance to get the normal date format for that country. There are other static factory methods available. Use getTimeInstance to get the time format for that country. Use getDateTimeInstance to get a date and time format. You can pass in different options to these factory methods to control the length of the result; from SHORT to MEDIUM to LONG to FULL. The exact result depends on the locale, but generally:
- SHORT is completely numeric, such as 12.13.52 or 3:30pm
- MEDIUM is longer, such as Jan 12, 1952
- LONG is longer, such as January 12, 1952 or 3:30:32pm
- FULL is pretty completely specified, such as Tuesday, April 12, 1952 AD or 3:30:42pm PST.
You can also set the time zone on the format if you wish. If you want even more control over the format or parsing, (or want to give your users more control), you can try casting the DateFormat you get from the factory methods to a SimpleDateFormat. This will work for the majority of countries; just remember to put it in a try block in case you encounter an unusual one.
You can also use forms of the parse and format methods with ParsePosition and FieldPosition to allow you to
- progressively parse through pieces of a string.
- align any particular field, or find out where it is for selection on the screen.
Synchronization

Date formats are not synchronized. It is recommended to create separate format instances for each thread. If multiple threads access a format concurrently, it must be synchronized externally. @see Format @see NumberFormat @see SimpleDateFormat @see java.util.Calendar @see java.util.GregorianCalendar @see java.util.TimeZone @version 1.57 11/17/05 @author Mark Davis, Chen-Lieh Huang, Alan Liu

      // This value will display the selected month in the mini calendar.
      GregorianCalendar selectedDate = new GregorianCalendar(year.intValue(), month.intValue() - 1, 1);
      dateForm.set("selectedDate", selectedDate);
      request.setAttribute("selectedDate", selectedDate);


      DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, locale);
      // simple mode basicall is non-calendar/activities mode, because
      // the following behaviour is unexpected in sales.
      boolean simpleMode = ((Boolean)dateForm.get("simpleMode")).booleanValue();
      String startDate = (String) dateForm.get("startDate");
      String endDate = (String) dateForm.get("endDate");
      if (!simpleMode) {
        if ((startDate == null || startDate.length() < 1) && (endDate == null || endDate.length() < 1)) {
          // if startDate *AND* endDate are not already set, then
          // set them both to the current date in the format MM/dd/yyyy
          startDate = df.format(currentDate.getTime());
          endDate = startDate;
        }
      }
      dateForm.set("startDate", startDate);
      dateForm.set("endDate", endDate);


      // if startTime is given, but endTime is NOT, then set the
      // endTime = startTime + 1 hour
      String startTime = (String) dateForm.get("startTime");
      String endTime = (String) dateForm.get("endTime");
      if ((startTime != null && startTime.length() > 0) && (endTime == null || endTime.length() <= 0)) {
        DateFormat tf = DateFormat.getTimeInstance(DateFormat.SHORT, locale);
        GregorianCalendar endTimeCal = new GregorianCalendar();
        // get a Calendar object generated from the given startTime String
        endTimeCal.setTime(tf.parse(startTime));
        // add one hour to the Calendar object
        endTimeCal.set(GregorianCalendar.HOUR_OF_DAY, endTimeCal.get(GregorianCalendar.HOUR_OF_DAY) + 1);
        // get the String representation of the Calendar object, using the
        // SimpleDateFormat
        String defaultEndTime = tf.format(endTimeCal.getTime());
        // set the new endTime String to the form
        dateForm.set("endTime", defaultEndTime);
      }
    } catch (Exception e) {
      logger.error("[execute]: Exception", e);

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      Calendar calendarStart = Calendar.getInstance();
      calendarStart.setTime(tvo.getStart());


      int startHrs = calendarStart.get(Calendar.HOUR_OF_DAY);
      int startMins = calendarStart.get(Calendar.MINUTE);
      DateFormat df = new SimpleDateFormat("h:mm a");


      tsForm.setStartTime((df.format(tvo.getStart())).toString());


      Calendar calendarEnd = Calendar.getInstance();
      calendarEnd.setTime(tvo.getEnd());


      int endHrs = calendarEnd.get(Calendar.HOUR_OF_DAY);
      int endMins = calendarEnd.get(Calendar.MINUTE);
      tsForm.setEndTime((df.format(tvo.getEnd())).toString());


      Float BreakTime = new Float(tvo.getBreakTime());
      int iHours = BreakTime.intValue();
      float breakTime = (BreakTime.floatValue() - iHours) * 60;
      Float Mins = new Float(breakTime);

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      String oldName = flvo.getName();


      Calendar c = Calendar.getInstance();
      java.util.Date dt = c.getTime();
      DateFormat df = new SimpleDateFormat("MM_dd_yyyy_hh_mm_ss");
      String dateStamp = df.format(dt);


      // String newName = fileId + "_" + flvo.getTitle();


      String newName = "attachment_" + dateStamp + "_" + flvo.getTitle();

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          CvFolderVO homeFld = remoteFile.getHomeFolder(indvID);


          int rn = (new Random()).nextInt();
          Calendar c = Calendar.getInstance();
          java.util.Date dt = c.getTime();
          DateFormat df = new SimpleDateFormat("MM_dd_yyyy");
          String dateStamp = df.format(dt);


          CvFileVO flvo = new CvFileVO();
          flvo.setTitle("Error Log");
          flvo.setName("errorLog_" + indvID + "_" + rn + "_" + dateStamp + ".txt");
          messageList.put("fileName","errorLog_" + indvID + "_" + rn + "_" + dateStamp + ".txt");

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  }


  //  ================== Parse String TO date/time/timestamp  ==================
  private static Date parseDateHelper(String date, String format)
      throws FunctionExecutionException {
    DateFormat df = new SimpleDateFormat(format);
    try {
      return df.parse(date);
    } catch (ParseException e) {
      throw new FunctionExecutionException("ERR.015.001.0043", QueryPlugin.Util.getString("ERR.015.001.0043" , //$NON-NLS-1$ //$NON-NLS-2$
          date, format));
    }
  }

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   * @return ActivityForm
   */
  public ActivityForm fillBasicForm(ActivityVO activity, ActivityForm activityForm)
  {
    try {
      DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, activityForm.getLocale());
      DateFormat tf = DateFormat.getTimeInstance(DateFormat.SHORT, activityForm.getLocale());


      activityForm.setActivityType(String.valueOf(activity.getActivityType()));
      activityForm.setActivityID(String.valueOf(activity.getActivityID()));
      activityForm.setActivityTitle(activity.getTitle());
      activityForm.setActivityPriority(String.valueOf(activity.getPriority()));


      // Set the RelatedField Information:
      activityForm.setActivityRelatedFieldID(Integer.toString(activity.getRelatedFieldID()));
      activityForm.setActivityRelatedFieldValue(activity.getRelatedFieldValue());
      activityForm.setActivityRelatedTypeID(Integer.toString(activity.getRelatedTypeID()));
      activityForm.setActivityRelatedTypeValue(activity.getRelatedTypeValue());


      if (activity.getNotes() != null) {
        activityForm.setActivityNotes(String.valueOf(activity.getNotes()));
      } else {
        activityForm.setActivityNotes("");
      }


      activityForm.setActivityCallType(String.valueOf(activity.getCallTypeId()));
      activityForm.setActivityID(String.valueOf(activity.getActivityID()));


      if (activity.getActivityDetails() != null) {
        activityForm.setActivityDetail(activity.getActivityDetails());
      }


      if (activity.getActivityStartDate() != null) {
        Timestamp startTimeStamp = activity.getActivityStartDate();
        Calendar start = new GregorianCalendar();
        start.setTime(startTimeStamp);
        activityForm.setActivityStartDate(df.format(start.getTime()));
        activityForm.setActivityStartTime(tf.format(start.getTime()));
      }


      if (activity.getActivityEndDate() != null) {
        Timestamp endTimeStamp = activity.getActivityEndDate();
        Calendar end = new GregorianCalendar();
        end.setTime(endTimeStamp);
        activityForm.setActivityEndDate(df.format(end.getTime()));
        activityForm.setActivityEndTime(tf.format(end.getTime()));
      }


      RecurrenceVO recurrenceVO = null;
      if (activity.getRecurrence() != null) {
        recurrenceVO = activity.getRecurrence();
        activityForm.setActivityRecurringFrequency(recurrenceVO.getTimePeriod());


        // if date is not null convert from timestamp to String
        if (recurrenceVO.getStartDate() != null) {
          Date recurStartDate = recurrenceVO.getStartDate();
          Calendar recurStart = new GregorianCalendar();
          recurStart.setTime(recurStartDate);
          activityForm.setActivityRecurStartDate(df.format(recurStart.getTime()));
          activityForm.setActivityRecurringStartTime(tf.format(recurStart.getTime()));
        }


        if (recurrenceVO.getUntil() != null) {
          Date recurEndDate = recurrenceVO.getUntil();
          Calendar recurEnd = new GregorianCalendar();
          recurEnd.setTime(recurEndDate);
          activityForm.setActivityRecurEndDate(df.format(recurEnd.getTime()));
        }


        HashMap mapRecurrence = recurrenceVO.getRecurrenceHM();
        if (mapRecurrence != null) {
          if (mapRecurrence.size() > 0) {
            String frequency = (String)mapRecurrence.get("FREQUENCY");
            String every = (String)mapRecurrence.get("EVERY");
            String on = (String)mapRecurrence.get("ON");
            activityForm.setActivityRecurringFrequency(frequency);


            if (frequency.equals("DAY")) {
              activityForm.setActivityRecurringDailyEvery("1");
              activityForm.setActivityRecurringDailyDays(every);
              if (Integer.parseInt(on) > 0) {
                activityForm.setActivityRecurringDailyWeekdays("1");
              }
            } else if (frequency.equals("WEEK")) {
              activityForm.setActivityRecurringWeeklyEvery(every);
              StringTokenizer st = new StringTokenizer(on, ",");
              String strweeklyon[] = new String[st.countTokens()];
              int i = 0;


              while (st.hasMoreTokens()) {
                String strToken = st.nextToken();
                if (strToken.equals("6")) {
                  strToken = "Su";
                } else if (strToken.equals("0")) {
                  strToken = "Mo";
                } else if (strToken.equals("1")) {
                  strToken = "Tu";
                } else if (strToken.equals("2")) {
                  strToken = "We";
                } else if (strToken.equals("3")) {
                  strToken = "Th";
                } else if (strToken.equals("4")) {
                  strToken = "Fr";
                } else if (strToken.equals("5")) {
                  strToken = "Sa";
                }
                strweeklyon[i] = strToken.trim();
                i++;
              }
              String selectedweek[] = { "Su", "Mo", "Tu", "We", "Th", "Fr", "Sa" };
              activityForm.setActivityRecurringWeeklyOn(strweeklyon);
              activityForm.setActivitySelectedWeek(selectedweek);
              activityForm.setActivityFindWeek(strweeklyon);
            } else if (frequency.equals("MONTH")) {
              String onstring = on;
              int inton = Integer.parseInt(onstring.substring(0, 1));
              activityForm.setActivityRecurringMonthlyEvery("" + inton);
              if (inton == 0) {
                String monthday = onstring.substring(2, onstring.length());
                activityForm.setActivityRecurringMonthlyEveryDay(monthday);
                activityForm.setActivityRecurringMonthlyOnWeek("-1");
                activityForm.setActivityRecurringMonthlyOnDay("-1");
              }


              if (inton == 1) {
                activityForm.setActivityRecurringMonthlyOnDay(onstring.substring(2, 3));
                activityForm.setActivityRecurringMonthlyOnWeek(onstring.substring(4, 5));
              }
            } else if (frequency.equals("YEAR")) {
              String onstring = on;
              int inton = Integer.parseInt(onstring.substring(0, 1));
              activityForm.setActivityRecurringYearlyEvery("" + inton);
              if (inton == 0) {
                activityForm.setActivityRecurringYearlyEveryMonth(every);
                String yearday = onstring.substring(2, onstring.length());
                activityForm.setActivityRecurringYearlyEveryDay(yearday);
                activityForm.setActivityRecurringYearlyOnWeek("-1");
                activityForm.setActivityRecurringYearlyOnDay("-1");
              }


              if (inton == 1) {
                activityForm.setActivityRecurringYearlyOnMonth(every);
                activityForm.setActivityRecurringYearlyOnWeek(onstring.substring(2, 3));
                activityForm.setActivityRecurringYearlyOnDay(onstring.substring(4, 5));
              }
            }// end of else if (frequency.equals("YEAR"))
          }// end of if (mapRecurrence.size()>0)
        }// end of if (mapRecurrence != null)
      }// end of if (actVo.getRecurrence() != null)


      Collection activityAction = null;
      if (activity.getActivityAction() != null) {
        activityAction = activity.getActivityAction();
        Iterator it = activityAction.iterator();
        while (it.hasNext()) {
          ActivityActionVO acVO = (ActivityActionVO)it.next();
          String strActionType = acVO.getActionType();
          if (strActionType.equals(ActivityActionVO.AA_ALERT)) {
            activityForm.setActivityReminder("on");
            if (acVO.getActionTime() != null) {
              Timestamp remindTimeStamp = acVO.getActionTime();
              Calendar remind = new GregorianCalendar();
              remind.setTime(remindTimeStamp);
              activityForm.setActivityRemindDate(df.format(remind.getTime()));
              activityForm.setActivityReminderTime(tf.format(remind.getTime()));
            }// end of if (acVO.getActionTime() != null)
          }// end of if (strActionType.equals(ActivityActionVO.AA_ALERT))
          else if (strActionType.equals(ActivityActionVO.AA_EMAIL)) {
            activityForm.setActivityEmailInvitation("on");
          }// end of else if (strActionType.equals(ActivityActionVO.AA_EMAIL))

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   * @param activity The newly created ActitivityVO object
   * @return void
   */
  public void fillBasic(ActivityVO activity, ActivityForm activityForm)
  {
    DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, activityForm.getLocale());
    DateFormat tf = DateFormat.getTimeInstance(DateFormat.SHORT, activityForm.getLocale());


    String id = activityForm.getActivityID();
    if ((id != null) && (id.length() > 0)) {
      activity.setActivityID(Integer.parseInt(id));
    }
    String activityType = activityForm.getActivityType();
    if ((activityType != null) && (activityType.length() > 0)) {
      activity.setActivityType(Integer.parseInt(activityForm.getActivityType()));
    }
    activity.setTitle(activityForm.getActivityTitle());
    activity.setActivityDetails(activityForm.getActivityDetail());
    if ((activityForm.getActivityRelatedFieldID() != null)
        && (activityForm.getActivityRelatedFieldID().length() > 0)
        && (activityForm.getActivityRelatedTypeID() != null)
        && (activityForm.getActivityRelatedTypeID().length() > 0)) {
      activity.setRelatedFieldID(Integer.parseInt(activityForm.getActivityRelatedFieldID()));
      activity.setRelatedFieldValue(activityForm.getActivityRelatedFieldValue());
      activity.setRelatedTypeID(Integer.parseInt(activityForm.getActivityRelatedTypeID()));
      activity.setRelatedTypeValue(activityForm.getActivityRelatedTypeValue());
    }
    if ((activityForm.getActivityEntityID() != null)
        && (activityForm.getActivityEntityID().length() > 0)) {
      String entity = activityForm.getActivityEntityID();
      activity.setEntityID(Integer.parseInt(entity));
    }
    if ((activityForm.getActivityIndividualID() != null)
        && (activityForm.getActivityIndividualID().length() > 0)) {
      String individual = activityForm.getActivityIndividualID();
      activity.setIndividualID(Integer.parseInt(individual));
    }
    if ((activityForm.getActivityCallType() != null)
        && (activityForm.getActivityCallType().length() > 0)) {
      String callType = activityForm.getActivityCallType();
      activity.setCallTypeId(Integer.parseInt(callType));
    }


    if (CVUtility.notEmpty(activityForm.getActivityStartDate())) {
      Calendar start = new GregorianCalendar();
      Calendar startTime = new GregorianCalendar();
      try {
        logger.debug("dateformat: "+df.toString()+", lenient?: "+df.isLenient()+", locale: "+activityForm.getLocale());
        start.setTime(df.parse(activityForm.getActivityStartDate()));
        startTime.setTime(tf.parse(activityForm.getActivityStartTime()));
        logger.debug("parsed start date: "+df.format(start.getTime()));
        logger.debug("parsed start time: "+tf.format(startTime.getTime()));
      } catch (ParseException e) {
        logger.error("[fillBasic]: Can't parse start date or time", e);
      }
      start.set(Calendar.HOUR, startTime.get(Calendar.HOUR));
      start.set(Calendar.MINUTE, startTime.get(Calendar.MINUTE));
      start.set(Calendar.AM_PM, startTime.get(Calendar.AM_PM));
      activity.setActivityStartDate(new Timestamp(start.getTimeInMillis()));
    }


    if (CVUtility.notEmpty(activityForm.getActivityEndDate())) {
      Calendar end = new GregorianCalendar();
      Calendar endTime = new GregorianCalendar();
      try {
        end.setTime(df.parse(activityForm.getActivityEndDate()));
        endTime.setTime(tf.parse(activityForm.getActivityEndTime()));
        logger.debug("parsed end date: "+df.format(end.getTime()));
        logger.debug("parsed end time: "+tf.format(endTime.getTime()));
      } catch (ParseException e) {
        logger.error("[fillBasic]: Can't parse end date or time", e);
      }
      end.set(Calendar.HOUR, endTime.get(Calendar.HOUR));
      end.set(Calendar.MINUTE, endTime.get(Calendar.MINUTE));
      end.set(Calendar.AM_PM, endTime.get(Calendar.AM_PM));
      activity.setActivityEndDate(new Timestamp(end.getTimeInMillis()));
    }


    if ((activityForm.getActivityOwnerID() != null)
        && (activityForm.getActivityOwnerID().length() > 0)) {
      activity.setOwner(Integer.parseInt(activityForm.getActivityOwnerID()));
    }
    try {
      String tmpPriority = activityForm.getActivityPriority();
      if ((tmpPriority != null) && (!tmpPriority.equals(""))) {
        activity.setPriority(Integer.parseInt(tmpPriority));
      } else {
        activity.setPriority(2);
      }
    } catch (Exception e) {
      activity.setPriority(2);
    }
    if ((activityForm.getActivityNotes() != null) && (activityForm.getActivityNotes().length() > 0)) {
      activity.setNotes(activityForm.getActivityNotes());
    }
    try {
      String tmpStatus = activityForm.getActivityStatus();
      if ((tmpStatus != null) && (!tmpStatus.equals(""))) {
        activity.setStatus(Integer.parseInt(tmpStatus));
      } else {
        activity.setStatus(2);
      }
    } catch (Exception e) {
      activity.setStatus(2);
    }
    activity.setVisibility(activityForm.getActivityVisibility());
    String reminder = activityForm.getActivityReminder();
    if (activityForm.getActivityReminder() != null && reminder.equals("on")) {
      ActivityActionVO action = new ActivityActionVO();
      action.setActionType(ActivityActionVO.AA_ALERT);
      // FIXME externalize String
      action.setMessage("Scheduled Alert: " + activity.getTitle());
      action.setInterval(0);
      action.setRepeat(0);
      if (CVUtility.notEmpty(activityForm.getActivityRemindDate())
          && CVUtility.notEmpty(activityForm.getActivityReminderTime())) {
        Calendar remind = new GregorianCalendar();
        Calendar remindTime = new GregorianCalendar();
        try {
          remind.setTime(df.parse(activityForm.getActivityRemindDate()));
          remindTime.setTime(tf.parse(activityForm.getActivityReminderTime()));
        } catch (ParseException e) {
          logger.error("[fillBasic]: Exception", e);
        }
        remind.set(Calendar.HOUR, remindTime.get(Calendar.HOUR));
        remind.set(Calendar.MINUTE, remindTime.get(Calendar.MINUTE));

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  /*
   * See PrimitiveOrWrapperConverterTest for more thorough data conversion unit tests
   */
  @Test
  public void testAccessors() throws Exception {
    DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.LONG);


    CalendarConverter cc = new CalendarConverter(dateFormat);
    assertEquals(dateFormat, cc.getDateFormat());


    StringConverter sc = new StringConverter(null);

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  public String  getDisplayString()
  {    
    if ( memberValue != null )
    {
      DateFormat df = new SimpleDateFormat("MMM d, yyyy") ; 
      return df.format(memberValue);
    }else
    {
      return "";
    }
  }

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      return (DateStringFormatConfig) configObj;
    }
  }


  protected static Date parseDateString(DateStringFormatConfig formatConfig, String dateStr) throws ParseException {
    DateFormat dateFormat = formatConfig.getDateFormat();
    return dateFormat.parse(dateStr);
  }

View Full Code Here

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Examples of java.text.DateFormat

Synchronization

Related Classes of java.text.DateFormat