Chris,
This does not work because your Jolt Specification is saying you are
looking for a top-level element called timestamp_start. Try something like
this:
[
{
"operation" : "shift",
"spec": {
"*": {
"timestamp_start" : "timestamp_start",
"timestamp_end" : "timestamp_end",
"custom_primitives" : {
"*": "&" }
}
}
}
]
to allow for the array.
Also, I recommend you don't develop your jolt specification inside NiFi...
NiFi is the runtime processor.
>From a development environment just use this site:
http://jolt-demo.appspot.com/#inception where you can paste in your
starting document and specification to find a spec that does what you want.
Then after the spec works, you can put it into your JoltTransformJson
processor.
Mar.k
On Thu, Oct 12, 2017 at 4:52 PM Chris Herssens <[email protected]>
wrote:
> Hello Pierre,
>
> I want to flatten the json content. How to I do this ?
> Now I use the chain DSL with jolt spec
>
> [
> {
> "operation" : "shift",
> "spec": {
> "timestamp_start" : "timestamp_start",
> "timestamp_end" : "timestamp_end",
> "custom_primitives" : {
> "*": "&" }
> }
> }
> ]
>
> this doesn't work with an array of json only with a single json
>
> Regards,
>
> Chris
>
>
>
> On Thu, Oct 12, 2017 at 11:26 AM, Pierre Villard <
> [email protected]> wrote:
>
>> Hi Chris,
>>
>> Yes it is.
>>
>> For example, if I want to add a field in all JSON of my array - I can do
>> (with default DSL) :
>>
>> {
>> "*": {
>> "mynewfield":"mynewvalue"
>> }
>> }
>>
>> I'm clearly not a Jolt expert, but others can help you if you're trying
>> to do something more complex.
>>
>> Pierre
>>
>>
>>
>> 2017-10-12 11:04 GMT+02:00 Chris Herssens <[email protected]>:
>>
>>> Hello,
>>>
>>> Is it possible to use the JoltTransformJson processor with an array of
>>> jsons as input
>>>
>>> Regards,
>>>
>>> Chris
>>>
>>
>>
>
