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From "Michael McCandless (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-3296) Explore alternatives to Commons CSV
Date Mon, 02 Apr 2012 19:39:21 GMT


Michael McCandless commented on SOLR-3296:

bq. wrt commons-csv alternatives, it's too risky for little/no gain. 

This confuses me: commons-csv is unreleased, while there are other
license-friendly packages (eg opencsv) that have been released for
some time (multiple releases), been tested in the field, had bugs
found & fixed, etc.

Why use an unreleased package when released alternatives are

bq. I put a lot of effort into getting commons-csv up to snuff,

Wait: a lot of effort doing what?  Did you have to modify commons-csv
sources?  Or do you mean open issues w/ the commons devs to fix
things/add test cases to commons-csv sources (great!)...?

bq. Switching implementations would most likely result in a lot of regressions that we don't
have tests for.

I'd expect the reverse, ie, it's more likely there are bugs in
commons-csv (it's not released and thus not heavily tested) than eg
in opencsv.

And if somehow that's really the case (eg we have particular/unusual
CSV parsing requirements), we should have our own tests asserting so?

> Explore alternatives to Commons CSV
> -----------------------------------
>                 Key: SOLR-3296
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>          Components: Build
>            Reporter: Chris Male
> In LUCENE-3930 we're implementing some less than ideal solutions to make available the
unreleased version of commons-csv.  We could remove these solutions if we didn't rely on this
lib.  So I think we should explore alternatives. 
> I think [opencsv|] is an alternative to consider, I've
used it in many commercial projects.  Bizarrely Commons-CSV's website says that Opencsv uses
a BSD license, but this isn't the case, OpenCSV uses ASL2.

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