CODEWITHSUNDEEP
dategroovyformatcompare
sumita bali
sumita bali

Reputation: 9

How do i compare 2 dates with specific format ("yyyy-MM-dd'T'HH:mm:ss") in groovy script

I have to compare 2 dates date 1 - "2024-06-18T10:08:39.1271797" date 2 - "2024-06-18T10:08:39.124669"

I have to test compare both dates in ready api and make sure they both are equal. I dont need the last seconds.1271797 from date 1 and .124669 from date 2.

I have tried lots of options but failed. Can anyone please help me to trim those fields in groovy script for this please.

Upvotes: 0

Views: 113

Answers (2)

Arvind Kumar Avinash
Arvind Kumar Avinash

Reputation: 79435

java.time

In March 2014, Java 8 introduced the modern, java.time date-time API which supplanted the error-prone legacy java.util date-time API. Any new code should use the java.time API*.

Solution using modern date-time API

Since your date-time strings are in the default format used by LocalDateTime#parse, you do not need to specify any DateTimeFormatter explicitly.

Having parsed these strings into a LocalDateTime, you can truncate them to the seconds.

Demo:

import java.time.LocalDateTime;
import java.time.temporal.ChronoUnit;


date1 = LocalDateTime.parse("2024-06-18T10:08:39.1271797")
                     .truncatedTo(ChronoUnit.SECONDS)

date2 = LocalDateTime.parse("2024-06-18T10:08:39.124669")
                     .truncatedTo(ChronoUnit.SECONDS)

println date1 == date2

Output:

true

Try it at onecompiler.com

Learn more about the modern Date-Time API from Trail: Date Time.

* If you are receiving an instance of java.util.Date, convert it tojava.time.Instant, using Date#toInstant and derive other date-time classes of java.time from it as per your requirement.

Upvotes: -1

Paul King
Paul King

Reputation: 1026

Assuming you have a standard install, or groovy-dateutil module on your classpath:

def fmt = "yyyy-MM-dd'T'hh:mm:ss"
assert Date.parse(fmt, "2024-06-18T10:08:39.1271797")
    == Date.parse(fmt, "2024-06-18T10:08:39.124669")

If you know the format will never change, you can just compare strings:

assert "2024-06-18T10:08:39.1271797".split(/\./)[0] ==
       "2024-06-18T10:08:39.124669".split(/\./)[0]

Upvotes: 2

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