[jira] [Assigned] (LENS-495) CubeColumn startTime and endTime are getting formatted according to local time zone of the machine on which code is run

["Yash Sharma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LENS-495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yash Sharma reassigned LENS-495:
--------------------------------

    Assignee: Yash Sharma

> CubeColumn startTime and endTime are getting formatted according to local time zone of the machine on which code is run
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: LENS-495
>                 URL: https://issues.apache.org/jira/browse/LENS-495
>             Project: Apache Lens
>          Issue Type: Bug
>            Reporter: Himanshu Gahlaut
>            Assignee: Yash Sharma
>              Labels: newbie
>
> Using simple date format "yyyy-MM-dd-HH-mm", startTime 01-01-2015 will get formatted to 2015-01-01-00-00 on a server / developer machine running with UTC time zone where as the same will be formatted to 2015-01-01-05-30 on a server / developer machine running in IST. 
> A test case which is expecting 2015-01-01-00-00 as a result of formatting will run fine in UTC time zone and will fail when the same is run on a machine in some other time zone. Test case can be made more generic by creating expected formatted string in local time zone but thats just adding un-required complexity to test case. 
> Also changing displayed time strings based on client time zone can be a requirement but changing the same based on the time zone of the machine (server) on which code is run seems to be an undesired behavior.
> One of the ways to fix this is to create SimpleDateFormat instance with time zone as UTC and consistently use UTC everywhere to keep things simple:
> SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd-HH");
> sdf.setTimeZone(TimeZone.getTimeZone("UTC"));



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