Sudeep,
You can pass the attributes by expressing them like this: ${key}
Or AttributeToJson:
"
*Destination* flowfile-attribute
- flowfile-attribute
- flowfile-content
Control if JSON value is written as a new flowfile attribute
'JSONAttributes' or written in the flowfile content. Writing to flowfile
content will overwrite any existing flowfile content.
On Tue, Feb 2, 2016 at 10:51 PM, sudeep mishra <[email protected]>
wrote:
> Hi Joe,
>
> Looks like I did not phrase my question correctly. AttributeToJson works
> fine and the documentation is also detailed.
>
> What I am looking for is a way to get the attributes of a flow file and
> pass only those to other processor.
>
> On Tue, Feb 2, 2016 at 10:50 PM, Joe Percivall <[email protected]>
> wrote:
>
>> Glad UpdateAttribute works for you.
>>
>> You are seeing AttributeToJson append the information to the content?
>> That is not what the documentation says or how it should be behaving
>> (should replace the contents). Could you send more information documenting
>> this?
>>
>> Joe
>> - - - - - -
>> Joseph Percivall
>> linkedin.com/in/Percivall
>> e: [email protected]
>>
>>
>>
>> On Tuesday, February 2, 2016 12:11 PM, sudeep mishra <
>> [email protected]> wrote:
>>
>>
>>
>> Thanks Joe.
>>
>> The UpdateAttribute processor can be helpful for my case. Also is it
>> possible to push only the attributes to Mongo? I could see an
>> AttributeToJson object but it seems to be appending the information in flow
>> file content or attribute. What is a good way to capture only attributes
>> and send it to MongoDb?
>>
>>
>>
>> On Tue, Feb 2, 2016 at 8:42 PM, Joe Percivall <[email protected]>
>> wrote:
>>
>> Hello Sudeep,
>> >
>> >How precise do you need the date/time to be? What you could do is add an
>> UpdateAttribute processor[1] after ingesting which uses the Expression
>> language functions "now" [2] and "format" [3] to add the date/time down to
>> the millisecond.
>> >
>> >There would of course be a bit of error between when it was ingested and
>> when it is processed by UpdateAttribute but UpdateAttribute is very fast
>> and there may actually not be any measurable delay.
>> >
>> >[1]
>> https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.processors.attributes.UpdateAttribute/index.html
>> >[2]
>> https://nifi.apache.org/docs/nifi-docs/html/expression-language-guide.html#now
>> >[3]
>> https://nifi.apache.org/docs/nifi-docs/html/expression-language-guide.html#format
>> >
>> >Hope that helps,
>> >Joe
>> >- - - - - -
>> >Joseph Percivall
>> >linkedin.com/in/Percivall
>> >e: [email protected]
>> >
>> >
>> >
>> >
>> >On Tuesday, February 2, 2016 1:17 AM, sudeep mishra <
>> [email protected]> wrote:
>> >
>> >
>> >
>> >Hi,
>> >
>> >I need to create some audits around the NiFi flows and want to add the
>> time a flow file was received by a particular processor. Is there a way to
>> add this date in the attributes for flow files?
>> >
>> >I can see a date in the 'Details' section for a data provenance entry
>> but can we get such a date in the attributes as well?
>> >
>> >
>> >Thanks & Regards,
>> >
>> >Sudeep
>> >
>>
>>
>> --
>>
>> Thanks & Regards,
>>
>> Sudeep
>>
>
>
>
> --
> Thanks & Regards,
>
> Sudeep
>
>
--
Juan Carlos Sequeiros
