Java Date UTC Format formatAsUTC(java.util.Date date, String pattern)

Description

format: returns the formatted date as String.

License

Apache License

Declaration

public static String formatAsUTC(java.util.Date date, String pattern) 

Method Source Code

//package com.java2s;
/**//  w  w w.j a va 2 s  . c o m
 * Copyright 2015 Jan Lolling jan.lolling@gmail.com
 * 
 * Licensed 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;

public class Main {
    private static java.util.TimeZone utcTimeZone = null;

    /**
     * format: returns the formatted date as String.
     * 
     * {talendTypes} String
     * 
     * {Category} TimestampUtil
     * 
     * {param} Date(date) date : date to format
     * 
     * {param} String(pattern) pattern : date to format
     * 
     * {example} formatAsUTC(date, "dd.MM.yyyy")
     */
    public static String formatAsUTC(java.util.Date date, String pattern) {
        if (date != null) {
            SimpleDateFormat sdf = new SimpleDateFormat(pattern);
            sdf.setTimeZone(getUTCTimeZone());
            return sdf.format(date);
        } else {
            return null;
        }
    }

    private static java.util.TimeZone getUTCTimeZone() {
        if (utcTimeZone == null) {
            utcTimeZone = java.util.TimeZone.getTimeZone("UTC");
        }
        return utcTimeZone;
    }

    /**
     * format: returns the formatted date as String.
     * 
     * {talendTypes} String
     * 
     * {Category} TimestampUtil
     * 
     * {param} Date(date) date : date to format
     * 
     * {param} String(pattern) pattern : date to format
     * 
     * {example} format(date, "dd.MM.yyyy")
     */
    public static String format(java.util.Date date, String pattern) {
        if (date != null) {
            return new SimpleDateFormat(pattern).format(date);
        } else {
            return null;
        }
    }

    private static java.util.TimeZone getTimeZone(String idParam) {
        if (idParam == null || idParam.isEmpty()) {
            throw new IllegalArgumentException(
                    "id for time zone cannot be null or empty");
        }
        idParam = idParam.trim();
        String[] tzArray = java.util.TimeZone.getAvailableIDs();
        for (String id : tzArray) {
            if (id.equalsIgnoreCase(idParam)) {
                return java.util.TimeZone.getTimeZone(id);
            }
        }
        return null;
    }
}

Related

1. createUTCDateFormatter(String dateFormat)
2. FormatAsUtc(Date date)
3. formatDate(Date date, String pattern, boolean toUTC)
4. formatTimeStamp(byte[] btValue, int iOffset, int iLength, int iUtcOffset)
5. formatUTC(Date date, String format)
6. formatUtcDateIfNotNull(final Date date)