jp.co.ntt.atrs.domain.common.util.DateTimeUtil.java Source code

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Here is the source code for jp.co.ntt.atrs.domain.common.util.DateTimeUtil.java

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/*
 * Copyright 2014-2018 NTT Corporation.
 *
 * 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 jp.co.ntt.atrs.domain.common.util;

import org.joda.time.DateTime;
import org.joda.time.LocalDate;
import org.joda.time.LocalTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

import java.util.Date;

/**
 * ??
 * 
 * @author NTT 
 */
public class DateTimeUtil {

    /**
     * ()???
     */
    private static final DateTimeFormatter DATE_FORMATTER = DateTimeFormat.forPattern("yyyy/MM/dd");

    /**
     * ()???
     */
    private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormat.forPattern("HHmm");

    /**
     * 
     */
    private DateTimeUtil() {
        // ???
    }

    /**
     * DateTime???
     * 
     * @param date 
     * @param timeString (HHmm)
     * @return ????????DateTime
     */
    public static DateTime toDateTime(Date date, String timeString) {
        return new LocalDate(date).toDateTime(DateTimeUtil.toLocalTime(timeString));
    }

    /**
     * DateTime???
     * 
     * @param dateString (yyyy/MM/dd)
     * @return ??????DateTime
     */
    public static DateTime toDateTime(String dateString) {
        return DATE_FORMATTER.parseDateTime(dateString);
    }

    /**
     * LocalTime???
     * 
     * @param timeString (HHmm)
     * @return ??????LocalTime
     */
    public static LocalTime toLocalTime(String timeString) {
        return TIME_FORMATTER.parseLocalTime(timeString);
    }

    /**
     * (yyyy/MM/dd)???
     * 
     * @param date 
     * @return (yyyy/MM/dd)
     */
    public static String toFormatDateString(Date date) {
        if (date == null) {
            return "";
        }
        return new DateTime(date).toString("yyyy/MM/dd");
    }

    /**
     * (yyyy/MM/dd)???
     * 
     * @param dateTime DateTime
     * @return (yyyy/MM/dd)
     */
    public static String toFormatDateString(DateTime dateTime) {
        if (dateTime == null) {
            return "";
        }
        return dateTime.toString("yyyy/MM/dd");
    }

    /**
     * (HH:mm)???
     * 
     * @param timeString (HHmm)
     * @return (HH:mm)
     */
    public static String toFormatTimeString(String timeString) {
        String result = timeString;
        if (timeString != null && 2 < timeString.length()) {
            result = String.format("%s:%s", timeString.substring(0, 2), timeString.substring(2));
        }
        return result;
    }

}