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From "Claus Ibsen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAMEL-10189) camel-jsonpath - Add support for simple functions?
Date Wed, 27 Jul 2016 11:26:20 GMT
Claus Ibsen created CAMEL-10189:
-----------------------------------

             Summary: camel-jsonpath - Add support for simple functions?
                 Key: CAMEL-10189
                 URL: https://issues.apache.org/jira/browse/CAMEL-10189
             Project: Camel
          Issue Type: Improvement
          Components: camel-jsonpath
            Reporter: Claus Ibsen


See SO
http://stackoverflow.com/questions/38609231/can-i-use-camel-simple-expression-inside-jsonpath-language

We can roll our own predicates in jsonpath where you can use ? as the placeholder. The trick
would be to either inline the functions in the string, and then do our own pre-parsing to
replace those predicates to ?, eg

{code}
"$.person[?(@.role=='${headers.role}')]"
{code}

gets pre-parsed as
{code}
"$.person[?(@.role=='?')]"
{code}

And then we know that ${headers.role} is the simple funktion to execute as the predicate.




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