[x3d-public] Minutes of JavaScript/JSON meeting 28 July 2021

[John Carlson]

2 email images attached for your convenience, Don and others with URL 
translation issues.   Hopefully I won't exceed email restrictions.

We discussed 3 things:

1. Python JSON Schema generation and validation

Sample script in X3DJSONLD/src/main/python (open project in PyCharm).

Run file generateSchemas.py in PyCharm

Reads X3DUOM specifications from X3DJSONLD/src/specifications

Produces X3DJSONLD/src/main/schema files

Which are copied to x3dschema (below).

X3DJSONLD/src/main/python/validator.py is a python script to validate 
X3D JSON in python, which depends on python generated from JSON schema.

2.  JSON schema validation in Java and JavaScript is done in the 
x3dschema project

Original launch bash script is validate.sh (validates JSON in X3D 
resources examples found under /c/x3d-code/.../x3d/content/examples 
using javaScript and Java)

     downloads jar files to $HOME/.m2/repository

New ant script is build.xml which compiles Java files and validates JSON 
in x3d resources examples with Everit 1.12.3. Compatible with draft07 of 
json-schema

All schema validation is done with draft07 of json-schema

3. JSON loader for X3DJSAIL

Attached here, and in other emails.  JsonLoaderTest.java should be 
placed in 
./x3d-code/www_web3d_org/x3d/stylesheets/java/tests/org/web3d/x3d/tests/JsonLoaderTest.java 
on sourceforge

There are lots of error messages that need to be resolved before 
X3DJSAIL will be "good to go" for JSON Loading.   These seem to center 
around X3DLoadDOM.java from X3DJSAIL, but could be in output from X3DJSAIL

Run the NetBeans project from x3d/stylesheets/java click down through 2 
"tests" folders above to where you placed the attached Java file and run 
JsonLoaderTest.java

Final files:

./x3d-code/www.web3d.org/x3d/stylesheets/java/examples/JsonLoaderTest.json
./x3d-code/www.web3d.org/x3d/stylesheets/java/examples/JsonLoaderTest.x3d

Intermediate files:

./x3d-code/www.web3d.org/x3d/stylesheets/java/examples/JsonLoaderTestPrettyPrint.intermediate.x3d

(prior to X3DLoaderDOM.java processing)

./x3d-code/www.web3d.org/x3d/stylesheets/java/examples/LoadedJsonConversion.xml

Somewhat useful tools for comparing output, but  there are online tools 
as well:

X3DJSONLD/src/main/node/xmldiff.js
X3DJSONLD/src/main/node/jsondiff.js


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

References:

https://github.com/coderextreme/X3DJSONLD

https://github.com/coderextreme/x3dschema

https://sourceforge.net/p/x3d/code/HEAD/tree/ (for X3DJSAIL, see 
X3DJSAIL web page https://www.web3d.org/specifications/java/X3DJSAIL.html)

JSON examples: 
https://www.web3d.org/x3d/content/examples/X3dExampleArchivesJsonScenes.zip


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