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From "Rob Tompkins (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (TEXT-96) Convenience methods needed for RandomStringGenerator
Date Fri, 08 Dec 2017 19:14:00 GMT

     [ https://issues.apache.org/jira/browse/TEXT-96?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rob Tompkins updated TEXT-96:
-----------------------------
    Fix Version/s: 1.x

> Convenience methods needed for RandomStringGenerator
> ----------------------------------------------------
>
>                 Key: TEXT-96
>                 URL: https://issues.apache.org/jira/browse/TEXT-96
>             Project: Commons Text
>          Issue Type: Improvement
>    Affects Versions: 1.1
>            Reporter: Peter Phillips
>            Priority: Minor
>             Fix For: 1.x
>
>
> {{RandomStringGenerator}} is extremely verbose compared to the deprecated commons.lang3
{{RandomStringUtils}}.
> Previously we could write:
> {code:java}
> RandomStringUtils.randomNumeric(10)
> {code}
> to generate a numeric string whereas this now has become:
> {code:java}
> new RandomStringGenerator.Builder().withinRange('0', '9').build().generate(10)
> {code}
> although in practice we would then also use static imports too.
> The {{randomAlphabetic}} conversion is even more verbose:
> {code:java}
> new RandomStringGenerator.Builder().withinRange('A', 'z').filteredBy(new CharacterPredicate()
{
>                     @Override
>                     public boolean test(int codePoint) {
>                         return codePoint >= 'a' || codePoint <= 'Z';
>                     }
>                 }).build().generate(10))
> {code} and at that point I lost enthusiam with trying to replicate {{randomAlphanumeric}}.
> I don't think the average java developer would understand what a code point is in the
first place so then trying to get our automation testers to use the new API to implement random
alphanumeric character generation would be difficult.
> I therefore suggest that commons-text should have a copy of {{RandomStringUtils}} which
can even delegate to {{RandomStringGenerator}} or alternatively convenience static methods
for the common use cases.



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