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From "Alexander Pivovarov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-9864) Refactor get_json_object udf to use Jayway JsonPath
Date Thu, 05 Mar 2015 00:32:38 GMT

     [ https://issues.apache.org/jira/browse/HIVE-9864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alexander Pivovarov updated HIVE-9864:
--------------------------------------
    Summary: Refactor get_json_object udf to use Jayway JsonPath  (was: Refactor get_json_object
to use Jayway JsonPath)

> Refactor get_json_object udf to use Jayway JsonPath
> ---------------------------------------------------
>
>                 Key: HIVE-9864
>                 URL: https://issues.apache.org/jira/browse/HIVE-9864
>             Project: Hive
>          Issue Type: Improvement
>          Components: UDF
>            Reporter: Alexander Pivovarov
>            Assignee: Alexander Pivovarov
>
> We can use Jayway JsonPath 1.2.0 to query json (Apache License, Version 2.0)
> Reasons:
> 1. existing get_json_object syntax is limited in comparison to JsonPath
> 2. Reason to have 175 lines of code to parse json is unclear.
> Looks like we can replace code btw lines 129-304 with
> {code}
> String result = JsonPath.parse(json).read(path)
> {code}
> 3. We can add some smoke tests to test refactored get_json_object udf. Existing get_json_object
impl requires much more testcases because it has 175 lines on custom code to parse json.



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