[jira] [Resolved] (SIS-419) Implement (un)marshalling of gco:Record

["Martin Desruisseaux (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SIS-419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Desruisseaux resolved SIS-419.
-------------------------------------
    Fix Version/s: 1.3
                   1.0
         Assignee: Martin Desruisseaux
       Resolution: Fixed

The policy applied in 1.0 (see above comment) seems to have worked reasonably well for more than one year. The 1.3 release add a clarification in record names which should avoid confusion. A new issue will be created if we find a better policy for unmarshalling {{{}<gco:Record>{}}}.

> Implement (un)marshalling of gco:Record
> ---------------------------------------
>
>                 Key: SIS-419
>                 URL: https://issues.apache.org/jira/browse/SIS-419
>             Project: Spatial Information Systems
>          Issue Type: New Feature
>          Components: Metadata
>    Affects Versions: 0.8
>            Reporter: Martin Desruisseaux
>            Assignee: Martin Desruisseaux
>            Priority: Minor
>             Fix For: 1.3, 1.0
>
>
> We do not support yet the XML (un)marshalling of {{gco:Record}} and {{gco:RecordType}} elements. One difficulty is that a {{Record}} is a kind of _key-value_ pairs (like a {{java.util.Map}}) and we did not found a lot of examples about how to represent that. Looking at [this file from data.gov|https://catalog.data.gov/harvest/object/d2901928-f55b-4ef3-88e9-9de7d3e30554], we found the following that looks like _key-description_ pairs separated by colon:
> {code:xml}
> <gco:Record>Alphanumeric values: Product is alphanumeric.</gco:Record>
> <gco:Record>Alphanumeric Text: Message contains alphanumeric text.</gco:Record>
> <gco:Record>Part A: Reflectivity presented as a tabular listing of alphanumerics</gco:Record>
> {code}
> But we found also code lists:
> {code:xml}
> <gco:Record>
>   <gmd:CodeListValue codelist="someURL#DataQualityAssessment" codeListValue="intermediate">intermediate</gmd:CodeListValue>
> </gco:Record>
> {code}
> The record types examples seems similar (reformatted on many lines below for readability):
> {code:xml}
> <gco:RecordType>
>   General Meteorological Products: General products include the baseline reflectivity and velocity,
>   and also algorithmic graphic products spectrum width, vertical integrated liquid, and VAD wind profile.
> </gco:RecordType>
> {code}
> Unmarshalling implementation in Apache SIS 1.0-SNAPSHOT is:
> * For {{gco:RecordType}}, take the part on the left side of the colon as the member name. Part of the right side is discarded, since we currently have no place where to store the description of a member.
> * For {{gco:Record}}, store the text as-is (no parsing).
> We may need to revisit this naive implementation if we find more examples of how records are represented in XML files.



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