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Posted to users@nifi.apache.org by Eric Chaves <er...@uolet.com> on 2017/12/08 02:09:58 UTC

How can I change the content-type of a flow file in a script processor?

Hi guys,

I'm trying to programatically set the content-type of a flow-file by
calling flowFile.putAttribute('content-type', 'application/json') but it's
not working.

How can I change my flow-file content-type?

Regards,

Eric

Re: How can I change the content-type of a flow file in a script processor?

Posted by Eric Chaves <er...@uolet.com>.

Thanks guys.

2017-12-08 13:27 GMT-02:00 Russell Bateman <ru...@windofkeltia.com>:

> Eric,
>
> Just a reminder not to forget that this modifies the flowfile and you must
> gather/carry that modification in a practical sense. Therefore, your code
> will be
>
>     flowfile = session.putAttribute( flowfile, "content-type",
> "application/json" );
>
> and thence you'll use the updated flowfile the next time you need it (such
> as when you call session.transfer( flowfile, SUCCESS ) ).
>
> Hope this reminder is useful,
>
> Russ
>
> On 12/07/2017 07:12 PM, Chris Herrera wrote:
>
> Hi Eric,
>
> If its for the content viewer you might want to use mime.type.
> additionally you can use session.putAttribute(flowFile, “content-type”,
> "application/json”);
>
> Regards,
> Chris
>
>
> On Dec 7, 2017, 8:10 PM -0600, Eric Chaves <er...@uolet.com>
> <er...@uolet.com>, wrote:
>
> Hi guys,
>
> I'm trying to programatically set the content-type of a flow-file by
> calling flowFile.putAttribute('content-type', 'application/json') but
> it's not working.
>
> How can I change my flow-file content-type?
>
> Regards,
>
> Eric
>
>
>

Re: How can I change the content-type of a flow file in a script processor?

Posted by Russell Bateman <ru...@windofkeltia.com>.

Eric,

Just a reminder not to forget that this modifies the flowfile and you 
must gather/carry that modification in a practical sense. Therefore, 
your code will be

     flowfile = session.putAttribute( flowfile, "content-type", 
"application/json" );

and thence you'll use the updated flowfile the next time you need it 
(such as when you call session.transfer( flowfile, SUCCESS )).

Hope this reminder is useful,

Russ

On 12/07/2017 07:12 PM, Chris Herrera wrote:
> Hi Eric,
>
> If its for the content viewer you might want to use mime.type. 
> additionally you can use session.putAttribute(flowFile, 
> “content-type”, "application/json”);
>
> Regards,
> Chris
>
>
> On Dec 7, 2017, 8:10 PM -0600, Eric Chaves <er...@uolet.com>, wrote:
>> Hi guys,
>>
>> I'm trying to programatically set the content-type of a flow-file by 
>> calling flowFile.putAttribute('content-type', 'application/json') but 
>> it's not working.
>>
>> How can I change my flow-file content-type?
>>
>> Regards,
>>
>> Eric

Re: How can I change the content-type of a flow file in a script processor?

Posted by Chris Herrera <ch...@gmail.com>.

Hi Eric,

If its for the content viewer you might want to use mime.type. additionally you can use session.putAttribute(flowFile, “content-type”, "application/json”);

Regards,
Chris

On Dec 7, 2017, 8:10 PM -0600, Eric Chaves <er...@uolet.com>, wrote:
> Hi guys,
>
> I'm trying to programatically set the content-type of a flow-file by calling flowFile.putAttribute('content-type', 'application/json') but it's not working.
>
> How can I change my flow-file content-type?
>
> Regards,
>
> Eric