Java Calendar Format formatCalendarXsdZulu(Calendar c, int millisDigits)

Here you can find the source of formatCalendarXsdZulu(Calendar c, int millisDigits)

Description

Format a Calendar object to a schema datetime string with time zone UTC Used by testConvertToDateTime().

License

Apache License

Parameter

Parameter Description
c the object to format
millisDigits number of digits used for millisecond field (0 = none)

Return

something like "1111-22-33T44:55:66.789Z"

Declaration

private static String formatCalendarXsdZulu(Calendar c, int millisDigits) 

Method Source Code

//package com.java2s;
/*//from w w w .  j  a v  a  2 s .c  o  m
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.TimeZone;

public class Main {
    /**
     * Format a Calendar object to a schema datetime string with time zone UTC
     * Used by testConvertToDateTime().
     * @param c the object to format
     * @param millisDigits number of digits used for millisecond field
     *                     (0 = none)
     * @return something like "1111-22-33T44:55:66.789Z"
     */
    private static String formatCalendarXsdZulu(Calendar c, int millisDigits) {
        String formatString = "yyyy-MM-dd'T'HH:mm:ss";
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(formatString);
        simpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
        StringBuffer sb = new StringBuffer(simpleDateFormat.format(c.getTime()));
        sb.append(formatMillis(c.get(Calendar.MILLISECOND), millisDigits));
        sb.append('Z');
        return sb.toString();
    }

    /**
      * Used to by formatCalendar* to format millisecond field.
      * @param millis the millisecond value
      * @param digits the number of digits to use
      *        (0=none)
      * @return something like ".123" or "" (when digits=0)
      */
    private static String formatMillis(int millis, int digits) {
        if (digits == 0)
            return "";
        StringBuffer sb = new StringBuffer(16);
        sb.append('.');
        sb.append(millis);
        while (sb.length() > digits && sb.charAt(sb.length() - 1) == '0') {
            sb.deleteCharAt(sb.length() - 1); // remove trailing '0'
        }
        while (sb.length() < digits + 1) {
            sb.append('0'); // add trailing '0'
        }
        return sb.toString();
    }
}

Related

  1. formatCalendar(Calendar calendar)
  2. formatCalendar(Calendar calendar)
  3. formatCalendar(Calendar calendar)
  4. formatCalendar(Calendar objCal, String strFormat)
  5. formatCalendarTS(Calendar value)
  6. formatDate(Calendar c)
  7. formatDate(Calendar c)
  8. formatDate(Calendar c)
  9. formatDate(Calendar cal)