[jira] [Created] (KARAF-5793) Provide an option replace the dot or not in json field in the JsonMarshaller

["Xilai Dai (JIRA)" <ji...@apache.org>]

Xilai Dai created KARAF-5793:
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             Summary: Provide an option replace the dot or not in json field in the JsonMarshaller
                 Key: KARAF-5793
                 URL: https://issues.apache.org/jira/browse/KARAF-5793
             Project: Karaf
          Issue Type: Improvement
          Components: decanter
    Affects Versions: decanter-2.0.0
            Reporter: Xilai Dai


The dot "." is replaced by "_" in json fields after changes from KARAF-4295. The reason could be that the field names containing dots will be rejected in ES 2.x (https://github.com/elastic/elasticsearch/issues/15951). but ES 5.x, 6.x support it again (parse it as Object). see https://www.elastic.co/guide/en/elasticsearch/reference/2.4/dots-in-names.html#_enabling_support_for_dots_in_field_names . Also there is an option provided by ES to allow dots in the field name:  
{code}
export ES_JAVA_OPTS="-Dmapper.allow_dots_in_name=true"
{code}

To give more compatibility and flexibility to the user, we may provide an option "replaceDotInFields=true/false" for the Json Marshaller. for now any custom fields name with "." woud be replaced by "_" silently.



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