XSD Date Time : Date Format « Data Type « Java

XSD Date Time

      
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//package org.xmldap.util;

import java.security.InvalidParameterException;
import java.util.Calendar;
import java.util.Locale;
import java.util.TimeZone;

public class XSDDateTime {

  private int moreMinutes;

  public XSDDateTime() {
    moreMinutes = 0;
  }

  public XSDDateTime(int moreMinutes) {
    this.moreMinutes = moreMinutes;
  }

  public static Calendar parse(String dt) {
    String[] dateTime = dt.split("T");
    String date = dateTime[0];
    String time = dateTime[1];
    String[] ymd = date.split("-");
    int year = Integer.parseInt(ymd[0]);
    int month = Integer.parseInt(ymd[1]) - 1;
    int day = Integer.parseInt(ymd[2]);
    String[] hms = time.split(":");
    int hour = Integer.parseInt(hms[0]);
    int minutes = Integer.parseInt(hms[1]);
    int seconds = Integer.parseInt(hms[2].substring(0, 2));
    TimeZone tz = TimeZone.getTimeZone("GMT+00:00");
    Calendar cal = Calendar.getInstance(tz, Locale.US);
    cal.set(year, month, day, hour, minutes, seconds);
    return cal;
  }

  public static String getDateTime(Calendar cal) {
    if (!cal.getTimeZone().equals(TimeZone.getTimeZone("GMT+00:00"))) {
      throw new InvalidParameterException();
    }
    int year = cal.get(Calendar.YEAR);
    int month = cal.get(Calendar.MONTH);
    month++;
    String monthString = pad(month);
    int day = cal.get(Calendar.DAY_OF_MONTH);
    String dayString = pad(day);
    int hour = cal.get(Calendar.HOUR_OF_DAY);
    String hourString = pad(hour);
    int minutes = cal.get(Calendar.MINUTE);
    String minutesString = pad(minutes);
    int seconds = cal.get(Calendar.SECOND);
    String secondsString = pad(seconds);

    return year + "-" + monthString + "-" + dayString + "T" + hourString
        + ":" + minutesString + ":" + secondsString + "Z";
  }

  public String getDateTime() {
    TimeZone tz = TimeZone.getTimeZone("GMT+00:00");
    Calendar cal = Calendar.getInstance(tz, Locale.US);
    cal.add(Calendar.MINUTE, moreMinutes);
    return getDateTime(cal);
  }

  protected static String pad(int value) {

    Integer valueInt = new Integer(value);
    String valueString = valueInt.toString();
    if (valueString.length() == 1)
      valueString = "0" + valueString;
    return valueString;

  }

}

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