[x3d-public] json schema validation problem: "-children" comments inside "head" element

Sat Jul 2 11:28:58 PDT 2016

Don,

I agree. I can, for this specific case:

1)      Update the Schema to permit this

2)      Update the text of the draft encoding

Then we probably want a more general review to see if there are missing instances.

Roy

-----Original Message-----
From: Don Brutzman [mailto:brutzman at nps.edu] 
Sent: 02 July 2016 07:00
To: Roy Walmsley
Cc: John Carlson; X3D Graphics public mailing list
Subject: json schema validation problem: "-children" comments inside "head" element

Am getting json validation errors like the following when a comment appears inside a head tag, originally as peer of meta tags.

================================================

validation error:

C:\x3d-code\www.web3d.org\x3d\content\examples\X3dForWebAuthors/Chapter05-AppearanceMaterialTextures//FillProperties.json error checking with json-schema-validator

--- BEGIN C:\x3d-code\www.web3d.org\x3d\content\examples\X3dForWebAuthors\Chapter05-AppearanceMaterialTextures\FillProperties.json---

validation: FAILURE

[ {

   "level" : "error",

   "schema" : {

     "loadingURI" : "file:/C:/x3d-code/www.web3d.org/specifications/x3d-3.3-JSONSchema.json#",

     "pointer" : "/definitions/head"

   },

   "instance" : {

     "pointer" : "/X3D/head"

   },

   "domain" : "validation",

   "keyword" : "additionalProperties",

   "message" : "object instance has properties which are not allowed by the schema: [\"-children\"]",

   "unwanted" : [ "-children" ]

} ]

--- END C:\x3d-code\www.web3d.org\x3d\content\examples\X3dForWebAuthors\Chapter05-AppearanceMaterialTextures\FillProperties.json---

Java Result: 100

================================================

snippets:

     "head": {

         "-children":[

           { "#comment":"The following component tag is needed since FillProperties node is not part of the default Immersive profile"

           }

         ],

         "component": [

           {

             "@name":"Shape",

             "@level":3

           }

         ],

         "meta": [

           {

             "@name":"title",

             "@content":"FillProperties.x3d"

           },

           {

             "@name":"description",

             "@content":"Demonstrate various FillProperties values."

           },

etc.

         ]

     },

================================================

   <head>

     <!-- The following component tag is needed since FillProperties node is not part of the default Immersive profile -->

     <component level='3' name='Shape'/>

     <meta content='FillProperties.x3d' name='title'/>

     <meta content='Demonstrate various FillProperties values.' name='description'/> etc.

   </head>

================================================

I think that the json schema needs to be allow the "-children" field here, and similarly inside other statements, wherever a "#comment" is allowed to appear.

Once we get this sorted out, we should check on the corresponding prose in the new draft X3D JSON Encoding specification.

all the best, Don

-- 

Don Brutzman  Naval Postgraduate School, Code USW/Br        <mailto:brutzman at nps.edu> brutzman at nps.edu

Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149

X3D graphics, virtual worlds, navy robotics  <http://faculty.nps.edu/brutzman> http://faculty.nps.edu/brutzman

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