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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TIKA-1561) GCMD Directory Interchange Format (.dif) identification
Date Sat, 28 Feb 2015 17:31:04 GMT

    [ https://issues.apache.org/jira/browse/TIKA-1561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341673#comment-14341673
] 

ASF GitHub Bot commented on TIKA-1561:
--------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/tika/pull/32


> GCMD Directory Interchange Format (.dif) identification
> -------------------------------------------------------
>
>                 Key: TIKA-1561
>                 URL: https://issues.apache.org/jira/browse/TIKA-1561
>             Project: Tika
>          Issue Type: Improvement
>          Components: mime
>    Affects Versions: 1.7
>            Reporter: Luke sh
>            Assignee: Chris A. Mattmann
>            Priority: Trivial
>             Fix For: 1.8
>
>         Attachments: carbon_isotopic_values_of_alkanes_extracted_from_paleosols.dif
>
>
> cited from the http://gcmd.nasa.gov/add/difguide/WRITEADIF.pdf 
> "The Directory Interchange Format (DIF) is metadata format used to create directory entries
that describe scientific data
> sets. A DIF holds a collection of fields, which detail specific information about the
data."
>  The .dif file respect proper xml format that describe the scientific data set, the schema
xsd files can be found inside the .dif xml file.
> i,e, http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.8.4.xsd
> The reason opening this ticket is tika parser for this dif file is being under consideration
with development, the support to identify the type of xml file is needed.
> Although dif file in this case seems to be an proper xml file which can be parsed by
xmlparser, still it might need a specific process on some of the fields to be extracted and
injected into the Solr System for analysis.
> Then it is proposed that the following type 'text/dif+xml' is appended and used in the
tika-mimetypes.xml to be able to support the specific xml type detection which extends the
application/xml, so that some special process can be applied to this particular xml file.
> <mime-type type="text/dif+xml">
>    <root-XML localName="DIF"/>
>    <root-XML localName="DIF" namespaceURI="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/"/>
>    <glob pattern="*.dif"/>
>    <sub-class-of type="application/xml"/>
> </mime-type>
> Expected MIME type: text/dif+xml
> The following is the link to the dif format guide
> http://gcmd.nasa.gov/add/difguide/
> example dif files:
> 1) https://www.aoncadis.org/dataset/id/005f3222-7548-11e2-851e-00c0f03d5b7c.dif
> 2) https://www.aoncadis.org/dataset/id/0091cf0c-7ad3-11e2-851e-00c0f03d5b7c.dif
> 3) https://www.aoncadis.org/dataset/id/02a6301c-3ab3-11e4-8ee7-00c0f03d5b7c.dif
> an example dif file has also been attached.



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