Java ZonedDateTime Calculate preProcess(String Val, ZonedDateTime BaseTimeMarker)

Description

If the string passed in is not null and of exactly 16 characters in the form of "(+|-)(\d{2})y(\d{2})m(\d{2})d\s([01][0-9]|2[0-4])\:([0-5][0-9])", will return a JSON text representation of the baseTimeMarker with the delta specified by the pattern.

License

Apache License

Parameter

Parameter	Description
Val	a parameter
baseTimeMarker	a parameter

Declaration

public static String preProcess(String Val, ZonedDateTime BaseTimeMarker)

Method Source Code


//package com.java2s;
/* ===========================================================================
 * Copyright (C) 2015 CapsicoHealth Inc.
 *
 * 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./*from  w  ww .j  a  v  a  2  s .c o m*/
 */

import java.time.Period;

import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    private static Pattern _DELTA_DATETIME = Pattern
            .compile("(\\+|\\-)(\\d{2})y(\\d{2})m(\\d{2})d\\s([01][0-9]|2[0-4])\\:([0-5][0-9])");

    /**
     * If the string passed in is not null and of exactly 16 characters in the form of "(+|-)(\d{2})y(\d{2})m(\d{2})d\s([01][0-9]|2[0-4])\:([0-5][0-9])",
     * will return a JSON text representation of the baseTimeMarker with the delta specified by the pattern. For example if the date time passed is
     * <B>2015-02-10</B> (irrespective of the time specified)<BR>
     * <UL><LI>"-01y00m05d 10:50" -> 2014-02-05 10:50:00</LI>
     *     <LI>"+00y00m04d 14:50" -> 2015-02-14 14:50:00</LI>
     * </UL>
     * @param Val
     * @param baseTimeMarker
     * @return
     */
    public static String preProcess(String Val, ZonedDateTime BaseTimeMarker) {
        if (Val == null || Val.length() != 16)
            return Val;

        Matcher M = _DELTA_DATETIME.matcher(Val);
        if (M.matches() == false)
            return Val;

        boolean Plus = M.group(1).equals("+");
        int years = Integer.parseInt(M.group(2));
        int months = Integer.parseInt(M.group(3));
        int days = Integer.parseInt(M.group(4));
        int hour = Integer.parseInt(M.group(5));
        int minute = Integer.parseInt(M.group(6));
        Period P = Period.of(years, months, days);
        BaseTimeMarker = Plus ? BaseTimeMarker.plus(P) : BaseTimeMarker.minus(P);
        BaseTimeMarker = BaseTimeMarker.withHour(hour).withMinute(minute);

        return printDateTimeForJSON(BaseTimeMarker);
    }

    public static String printDateTimeForJSON(ZonedDateTime ZDT) {
        return ZDT == null ? null : ZDT.format(DateTimeFormatter.ISO_ZONED_DATE_TIME);
    }
}