com.thruzero.common.core.utils.DateTimeFormatUtilsExt.java Source code

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Here is the source code for com.thruzero.common.core.utils.DateTimeFormatUtilsExt.java

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/*
 *   Copyright 2010 George Norman
 *
 *   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.
 */
package com.thruzero.common.core.utils;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.apache.commons.lang3.time.DateFormatUtils;
import org.apache.commons.lang3.time.DateUtils;
import org.apache.commons.lang3.time.DurationFormatUtils;

/**
 * Extensions to the apache {@code DateFormatUtils} utility class that adds additional Date and time formatting
 * functions.
 *
 * @author George Norman
 */
public class DateTimeFormatUtilsExt extends DateFormatUtils {

    /** Default date format */
    public static final String MM_DD_YYYY_DATE_FORMAT_STRING = "MM/dd/yyyy";

    /** Default time format */
    public static final String HH_MM_AMPM_TIME_FORMAT_STRING = "hh:mm a";

    /** This is a utility class - Allow for class extensions; disallow client instantiation */
    protected DateTimeFormatUtilsExt() {
    }

    /** format the given date as: "MM/dd/yyyy". */
    public static String formatMmDdYyyy(final Date date) {
        SimpleDateFormat sdf = new SimpleDateFormat(MM_DD_YYYY_DATE_FORMAT_STRING);

        return sdf.format(date);
    }

    /** format the given date as: "MM/dd/yyyy at hh:mm a". */
    public static String formatMmDdYyyyHhMm(final Date date) {
        SimpleDateFormat sdf = new SimpleDateFormat(
                MM_DD_YYYY_DATE_FORMAT_STRING + " 'at' " + HH_MM_AMPM_TIME_FORMAT_STRING);

        return sdf.format(date);
    }

    /** format the given date in MySQL format: "yyyy-MM-dd". */
    public static String formatMySql(final Date date) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

        return sdf.format(date);
    }

    /** Return the {@code Calendar.DATE} portion of the given {@code dateTime}. */
    public static Date truncateTime(final Date dateTime) {
        return DateUtils.truncate(dateTime, Calendar.DATE);
    }

    public static String formatElapsedTime(final long elapsedTime) {
        String result = formatElapsedTime(0, elapsedTime);

        return result;
    }

    public static String formatElapsedTime(final long startMillis, final long endMillis) {
        String result = DurationFormatUtils.formatPeriod(startMillis, endMillis, "s.SSS");

        return result;
    }

}