Is there a way to get the field names in an EvalFunc? I am close to done but... no cigar :) I need these to finish.
On Mon, Apr 9, 2012 at 11:03 PM, Russell Jurney <russell.jur...@gmail.com>wrote: > So far this is not easy. > > > On Mon, Apr 9, 2012 at 5:42 PM, Russell Jurney > <russell.jur...@gmail.com>wrote: > >> I see Jackson being used in the Mozilla stuff. It looks pretty >> straightforward. >> >> >> On Mon, Apr 9, 2012 at 5:38 PM, Dmitriy Ryaboy <dvrya...@gmail.com>wrote: >> >>> Jackson is your friend. >>> >>> On Mon, Apr 9, 2012 at 5:14 PM, Russell Jurney <russell.jur...@gmail.com> >>> wrote: >>> > I need to be able to JSONize and return json:chararray's of any pig >>> > datatypes, to be able to index complex types in ElasticSearch via >>> > Wonderdog. See: https://issues.apache.org/jira/browse/PIG-2641 >>> > >>> > Does anyone have existing code they can contribute to a toJSON UDF that >>> > handles all these types? >>> > >>> > For instance, Mozilla has this Map to JSON UDF: >>> > >>> https://github.com/mozilla-metrics/akela/blob/master/src/main/java/com/mozilla/pig/eval/json/MapToJson.java >>> > >>> > It is apache licensed, so I think I can paste it into a general toJSON >>> UDF? >>> > >>> > >>> > Elephant-bird has this code, which turns JSON to Maps: >>> > >>> https://github.com/kevinweil/elephant-bird/blob/master/src/java/com/twitter/elephantbird/pig/piggybank/JsonStringToMap.java >>> > >>> > ehh... thinking out loud... I'm just gonna do this in JRuby. If that >>> has >>> > issues, Python. >>> > >>> > Solved! :) >>> > >>> > -- >>> > Russell Jurney twitter.com/rjurney russell.jur...@gmail.com >>> datasyndrome.com >>> >> >> >> >> -- >> Russell Jurney twitter.com/rjurney russell.jur...@gmail.com datasyndrome. >> com >> > > > > -- > Russell Jurney twitter.com/rjurney russell.jur...@gmail.com datasyndrome. > com > -- Russell Jurney twitter.com/rjurney russell.jur...@gmail.com datasyndrome.com
