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From Jean Georges Perrin <...@jgp.net>
Subject Re: How to convert Row to JSON in Java?
Date Mon, 11 Sep 2017 01:56:49 GMT
Hey,

I have a few examples https://github.com/jgperrin/net.jgp.labs.spark. I recently worked on
such problems, so there's definitely a solution there or I'll be happy to write one for you.


Look in l250 map... 

jg


> On Sep 10, 2017, at 20:51, ayan guha <guha.ayan@gmail.com> wrote:
> 
> Sorry for side-line question, but for Python, isn't following the easiest:
> 
> >>> import json
> >>> df1 = df.rdd.map(lambda r: json.dumps(r.asDict()))
> >>> df1.take(10)
> ['{"id": 1}', '{"id": 2}', '{"id": 3}', '{"id": 4}', '{"id": 5}']
> 
> 
> 
> 
>> On Mon, Sep 11, 2017 at 4:22 AM, Riccardo Ferrari <ferrarir@gmail.com> wrote:
>> Hi Kant,
>> 
>> You can check the getValuesMap. I found this post useful, it is in Scala but should
be a good starting point.
>> An alternative approach is combine the 'struct' and 'to_json' functions. I have not
tested this in Java but I am using it in Python.
>> 
>> Best,
>> 
>>> On Sun, Sep 10, 2017 at 1:45 AM, kant kodali <kanth909@gmail.com> wrote:
>>> toJSON on Row object.
>>> 
>>>> On Sat, Sep 9, 2017 at 4:18 PM, Felix Cheung <felixcheung_m@hotmail.com>
wrote:
>>>> toJSON on Dataset/DataFrame?
>>>> 
>>>> From: kant kodali <kanth909@gmail.com>
>>>> Sent: Saturday, September 9, 2017 4:15:49 PM
>>>> To: user @spark
>>>> Subject: How to convert Row to JSON in Java?
>>>>  
>>>> Hi All,
>>>> 
>>>> How to convert Row to JSON in Java? It would be nice to have .toJson() method
in the Row class.
>>>> 
>>>> Thanks,
>>>> kant
>>> 
>> 
> 
> 
> 
> -- 
> Best Regards,
> Ayan Guha

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