Java LocalDateTime Calculate getShiftResult(ImmutableMap timexUnitMap, LocalDateTime reference, boolean future)

Description

get Shift Result

License

Open Source License

Declaration

public static LocalDateTime getShiftResult(ImmutableMap<String, Double> timexUnitMap, LocalDateTime reference,
            boolean future) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.time.LocalDateTime;
import java.util.Map;
import com.google.common.collect.ImmutableMap;

public class Main {
    public static LocalDateTime getShiftResult(ImmutableMap<String, Double> timexUnitMap, LocalDateTime reference,
            boolean future) {

        LocalDateTime result = reference;
        int futureOrPast = future ? 1 : -1;

        for (Map.Entry<String, Double> pair : timexUnitMap.entrySet()) {

            String unit = pair.getKey();
            Double number = pair.getValue();

            switch (unit) {
            case "H":
                result = result.plusHours(Math.round(number * futureOrPast));
                break;
            case "M":
                result = result.plusMinutes(Math.round(number * futureOrPast));
                break;
            case "S":
                result = result.plusSeconds(Math.round(number * futureOrPast));
                break;
            case "D":
                result = result.plusDays(Math.round(number * futureOrPast));
                break;
            case "W":
                result = result.plusWeeks(Math.round(number * futureOrPast));
                break;
            case "MON":
                result = result.plusMonths(Math.round(number * futureOrPast));
                break;
            case "Y":
                result = result.plusYears(Math.round(number * futureOrPast));
                break;

            default:
                return result;
            }//from w ww.jav  a  2  s. c o m
        }

        return result;
    }
}

Related

1. currentTimeMillis(LocalDateTime ldt)
2. DateTime2LocalDateTime(Date datetime)
3. dateTimeToOleMinutes(LocalDateTime datetime)
4. dayDuration(LocalDateTime startDateTime, LocalDateTime endDateTime)
5. fastDateTimeWriteHours(LocalDateTime localDateTime)
6. getStartWeekOfMonth(@Nonnull final LocalDateTime aDT, @Nonnull final Locale aLocale)
7. getTimePart(final LocalDateTime dateTime)
8. getZonedDateTime(LocalDateTime dateTime, TimeZone timeZone)
9. isAfter(LocalDateTime endDateTime, LocalDateTime startDateTime)