<div dir="ltr">HI Pierre <div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 22, 2017 at 11:12 PM, Pierre Le Sidaner <span dir="ltr"><<a href="mailto:pierre.lesidaner@obspm.fr" target="_blank">pierre.lesidaner@obspm.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi<br>
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I have seen the description of the STC2 DM at <a href="http://volute.g-vo.org/svn/trunk/projects/dm/STC-2.0/doc" rel="noreferrer" target="_blank">http://volute.g-vo.org/svn/tru<wbr>nk/projects/dm/STC-2.0/doc</a><br>
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I have seen also xmi files model directory<br>
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My question is mainly for VO-DML group, is there a possibility to have STC2 express in an xml schema (xsd) ?<br>
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It would be very useful to make usage of it and validate.<br>
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Does VO-DML have tool to transform the serialisation of schema into such a format ?<br>
<br></blockquote><div><br></div><div><div>There is currently no script to translate from VO-DML to XSD.</div><div>But nothing stops one from creating one, the mapping between VO-DMl and XSD is quite straightforward. See appendix B1 of the VO-DML spec for an example. </div><div><br></div><div>In fact there is such an XSLT script for the related VO-URP "spec" at </div><div><a href="https://github.com/glemson/vo-urp/blob/master/res/intermediate2xsd.xsl">https://github.com/glemson/vo-urp/blob/master/res/intermediate2xsd.xsl</a> </div><div><br></div><div>This was used to create the XSD representation for the Simulation DM in <a href="http://www.ivoa.net/documents/SimDM/20120503/xsd/">http://www.ivoa.net/documents/SimDM/20120503/xsd/</a> </div><div>It's source was what we then called the intermediate representation" of the data model in </div><div><a href="http://www.ivoa.net/documents/SimDM/20120503/uml/SimDM_INTERMEDIATE.xml">http://www.ivoa.net/documents/SimDM/20120503/uml/SimDM_INTERMEDIATE.xml</a></div><div>See section 4.2 of the simulation data model (<a href="http://www.ivoa.net/documents/SimDM/20120503/index.html">http://www.ivoa.net/documents/SimDM/20120503/index.html</a>) for a short description.</div><div><br></div><div>The intermediate XML is closely related to the VO-DML/XML. Hence it should not be hard to modify the XSLT to also work for VO-DML, and I have planned to do that once I found the time. Maybe someone else can use it as inspiration?</div><div><br></div><div>Main difference between VO-DML and VO-URP is that the former can import models and in fact the primitive datatypes are defined in the base ivoa model in VO-DML, but as an enumeration in VO-URP.</div><div><br></div><div>And also note that a particular mapping scheme was used in the XSLT. Laurent Bourges and I used that in a web application that translates between XSD, Java and RDB, but it may not be to everyone's liking. In particular the treatment of references was tricky. We also made the explicit decision to separate the type definitions from the definitions of the root elements. And those were limited to correspond to the non abstract root types only, i.e. those that are not the child in a composition relation. </div></div><div><br></div><div>I am happy to assist in porting the XSLT from VO-URP to VO-DML, but hope others are interested as well.</div><div><br></div><div>Cheers</div><div><br></div><div>Gerard</div><div><br></div><div><br></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
regards<br>
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Pierre<br>
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Pierre Le Sidaner<br>
Observatoire de Paris<br>
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Direction Informatique de l'Observatoire<br>
Observatoire Virtuel 01 40 51 20 82<br>
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mailto:<a href="mailto:pierre.lesidaner@obspm.fr" target="_blank">pierre.lesidaner@obspm.<wbr>fr</a><br>
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