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https://issues.apache.org/jira/browse/PIG-2317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Coveney updated PIG-2317:
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Attachment: PIG-2317-8.patch
Phew! Ok, the tests now run. There was quite a bit of bug fixing that went in,
both in the ruby library 'pigudf', as well as in the UDFs themselves (they are
cleaned up a bit). I added support for DataByteArrays, as well as support
making it a lot easier to concatenate them together and whatnot.
As far as things I'd like to do...
- I'd like to make a much more natural way to interact with Schema objects from
the Ruby side. Right now you can return a schema and stuff, but goooood luck
actually trying to manipulate the object :) (it's possibly but it'd be ugly) I
imagine the jython scripting suffers from this as well
- Need to fix the enumerator interface on the DataBag and BagIterator. This is
pending some help from the JRuby folk.
- In general, need to balance making the API's look like their Java
counterparts, but with the nice conveniences that JRuby can offer so that UDFs
can be really concise and easy
- I'd like to get rid of the need for pigudf.rb and implement it all in Java.
This is the least priority, though, because the current implementation works,
and it is absolutely idiomatic in jruby to implement libraries in jruby, so the
above is more important.
Thanks again for the tests, Alan. They were really key. It should pass them
now. I'll ruminate on other good ones to add.
> Ruby/Jruby UDFs
> ---------------
>
> Key: PIG-2317
> URL: https://issues.apache.org/jira/browse/PIG-2317
> Project: Pig
> Issue Type: New Feature
> Reporter: Jacob Perkins
> Assignee: Jacob Perkins
> Priority: Minor
> Attachments: PIG-2317-8.patch, PigUdf.rb, PigUdf.rb,
> jruby_scripting.patch, jruby_scripting_2_real.patch, jruby_scripting_3.patch,
> jruby_scripting_4.patch, jruby_scripting_5.patch, jruby_scripting_6.patch,
> jruby_scripting_7.patch, pigjruby.rb, pigjruby.rb, pigjruby.rb, pigudf.rb
>
>
> It should be possible to write UDFs in Ruby. These UDFs will be registered in
> the same way as python and javascript UDFs.
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