[jira] Assigned: (TIKA-529) IBM420 charset detection's isLamAlef is allocation-happy

["Ken Krugler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TIKA-529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ken Krugler reassigned TIKA-529:
--------------------------------

    Assignee: Ken Krugler

> IBM420 charset detection's isLamAlef is allocation-happy
> --------------------------------------------------------
>
>                 Key: TIKA-529
>                 URL: https://issues.apache.org/jira/browse/TIKA-529
>             Project: Tika
>          Issue Type: Bug
>          Components: parser
>    Affects Versions: 0.8
>            Reporter: Radek
>            Assignee: Ken Krugler
>            Priority: Minor
>         Attachments: isLamAlef.diff
>
>
> Two IBM420 charset detectors (rtl and ltr) run isLamAlef() for each byte of detection buffer.
> The code is allocating and filling a bytes array every time it runs, which makes it responsible for approximately 70% of all object allocations in my current test case (many text files).
> Since array is identical every time, and the entire thing can be achieved without any array, this is wasteful.

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