Hi,

I’m not appending the “status” attribute to the input json content. I’m just 
using as a parameter for comparison
I tried the same way connecting EvaluateJsonPath with RouteOnAttribute. I was 
facing some syntax issue.
So I took the alternative of using updateAttribute and doing the comparison

My EL is ${status:contains(${result.status})}.

Please let me know where I’m missing

Regards
Vyshali

From: Sivaprasanna [mailto:[email protected]]
Sent: Monday, October 15, 2018 6:47 PM
To: [email protected]
Subject: [External] Re: Issue with RouteOnAttribute

Adding on, 'RouteOnAttribute' takes ExpressionLanguage. "$.result.status" is 
not an ExpressionLanguage (EL) but a JSON Path expression. So what you can do 
is, use EvaluateJsonPath processor to read the value of status using 
"$.result.status" and assign it to an attribute, say "statusField" (this gets 
added as a FlowFile attribute). Connect EvaluateJsonPath with RouteOnAttribute 
and reference the attribute you have added in EvaluateJsonPath using EL. Ex: 
${statusField:equals("OK")}

On Mon, Oct 15, 2018 at 6:31 PM Sivaprasanna 
<[email protected]<mailto:[email protected]>> wrote:
Vyshali,

UpdateAttribute adds an attribute to the FlowFile i.e. just like filename, 
filesize, etc., when you set "status" : "OK" using UpdateAttribute, the field 
doesn't actually get added to the JSON content. I would rather suggest you to 
use 'UpdateRecord' processor and configure it with JSON Reader and JSON Writer 
(providing them with a schema for your JSON content) and set the new field 
"status": "OK". For more details on UpdateRecord, check this tutorial. 
https://community.hortonworks.com/articles/189642/update-the-contents-of-flowfile-by-using-updaterec.html

-
Sivaprasanna

On Mon, Oct 15, 2018 at 6:09 PM N, Vyshali 
<[email protected]<mailto:[email protected]>> wrote:
Hi,

I’m consuming the message published through “PutJMS” processor using 
“ConsumeJMS” processor. The message is in JSON format. I added the value of 
“status” as “OK” using “UpdateAttribute” processor. I wanted to route it to 
“AttributesToJSON” processor if the value of $.result.status is “OK” for which 
I’m using the “RouteOnAttribute” processor .The regular expression which I used 
for routing is ${status:contains(${result.status})}. But the routing doesn’t 
happen correctly.

Sample input json :
{
"revision": "1.0.0",
"acceptor": "100",
"result": {
                                "status": "OK"
                }
}

Please let me know where I’m missing.
Thanks in advance

Regards
Vyshali

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