[x3d-public] How to achieve JSON validation.
John Carlson
yottzumm at gmail.com
Mon Jan 23 17:39:20 PST 2023
My validator is here:
https://coderextreme.net/X3DJSONLD/src/main/html/validator.html
John
On Mon, Jan 23, 2023 at 7:34 PM John Carlson <yottzumm at gmail.com> wrote:
> I don’t expect devs using JavaScript to also use my JSON schema in a
> browser. My guess is that they will do validation on the server, such that
> the schema does not need to be downloaded. Or if validation is necessary
> in the browser, they may shrink the schema. Another option is to convert
> JSON to a DOM document (X3DJSONLD.*) and validate the DOM document.
> Software other than mine should provide their own/borrowed validation
> routines. I’m expecting the DOM or scenegraph to be validated, not the
> JSON. Whatever validates the DOM document or scenegraph will also
> validate the encodings (JSON). This reduces the number of
> encodings/bindings to validate. If someone wants to use a recent,
> non-standardized JSON schema in an X3d JavaScript program, let me know.
>
> My website supports php on the server, not node, java or python. For
> that reason, I provide JSON validation in the browser. I provide
> validation as a free service (hint: I didn’t write the validation
> routines). https://coderextreme.net/X3DJSONLD/validator.html (not
> recently tested)
>
> JavaScript SAI (es6x3d?) should proceed, but I’m not going to validate the
> JavaScript objects if they extend beyond something like JSON! If someone
> wants to work on JavaScript SAI validation, speak up!
>
> The reason we don’t need JSON schema validation in Java is 1) we expect
> X3D to be written primarily in Java, and 2) There’s XML/DOM validation. 3)
> There’s scenegraph validation.
>
> I offer X3DJSONLD.java free as a converter from a JSON object to a DOM
> document.
>
> John
>
> On Mon, Jan 23, 2023 at 5:25 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> I have not tested the X3DJSAIL build recently, it’s been over a week
>> since this was reported.
>>
>> I was hoping we could get a buildable X3DJSAIL, sorry that I misused
>> “it.” I do that a lot and strive to improve upon. At this time, I don’t
>> know the status of X3DJSAIL. I will assume I can rebuild safely. I do
>> know that issue tickets (ala github) can improve communication.
>>
>> To clarify:
>>
>> I use X3DJSAIL’s DOM+validation code to validate JSON files in a java app
>> (Validat….java) would be more correct. I cannot do that if the X3DJSAIL
>> jar doesn’t build; my build breaks if X3DJSAIL build breaks. There’s no
>> JSON Schema involved. I have moved my X3DJSAIL jar location in my
>> subversion repository to something that doesn’t get deleted. That means
>> my X3DJSAIL is disconnected from the standard build. I know your goal is
>> to have a “client-facing” X3DJSAIL, such that you don’t have to support
>> X3DJSAIL builds by others. I know I’m on the bleeding edge. I will try
>> to step back and proceed with tickets on sourceforge.net.
>>
>> As TextureProjector is new in X3D4, perhaps X3DJSAIL does not include it
>> yet?
>>
>> Frankly, I’m hoping for something even better than JSON schema, I don’t
>> hold your same hope for JSON schema standards as you do. I hope that
>> someone can come up with something like es6x3d to do validation of JSON
>> files. Since we already have a python validator and a Java validator, a
>> JavaScript validator seems appropriate. I apologize for taking us down
>> the JSON Schema path. I thought it would provide security that
>> X3DJSONLD.js does not provide but Ajv does (don’t click ok). I’ve even
>> implemented a JSON validator on my website.
>>
>> As we’ve noted, Khronos has moved to standardize without a standard JSON
>> schema. We already know of tools like JSON parsers get us much of the way.
>>
>> I believe full implementation of JavaScript SAI validation may be the
>> future. There are at least 4 starting points to choose from.
>>
>> John
>>
>> On Mon, Jan 23, 2023 at 2:12 PM Brutzman, Donald (Don) (CIV) <
>> brutzman at nps.edu> wrote:
>>
>>> John, there is no JSON validation in X3D-Edit or X3DJSAIL because there
>>> is not standardized JSON Schema. When that occurs, we can
>>> update/autogenerate X3D JSON Schema and begin testing tools.
>>>
>>>
>>>
>>> Given the expressive power of JSON Schema, am expecting that future
>>> tests will match prior tests and detect encoding errors similar to
>>> expressive power of X3D XML Schema.
>>>
>>>
>>>
>>> Not new news… Until then I don’t want to keep repeating work that is
>>> not completely correct. Hope this helps.
>>>
>>>
>>>
>>> all the best, Don
>>>
>>> --
>>>
>>> Don Brutzman Naval Postgraduate School, Code USW/Br
>>> brutzman at nps.edu
>>>
>>> Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA
>>> +1.831.656.2149
>>>
>>> X3D graphics, virtual worlds, Navy robotics https://
>>> faculty.nps.edu/brutzman
>>>
>>>
>>>
>>> *From:* x3d-public <x3d-public-bounces at web3d.org> *On Behalf Of *John
>>> Carlson
>>> *Sent:* Wednesday, January 18, 2023 4:24 AM
>>> *To:* X3D Graphics public mailing list <x3d-public at web3d.org>; Michalis
>>> Kamburelis <michalis.kambi at gmail.com>
>>> *Subject:* Re: [x3d-public] Weird java compilation problem building
>>> X3DJSAIL. Waiting patiently. Zzz
>>>
>>>
>>>
>>> IFS.json passes X3DJSAIL validation, Ajv validation, and as we've seen,
>>> it passes validation in X3D-Edit.
>>>
>>>
>>>
>>> So far, it only reports errors as XML in view3dscene. tested in
>>> X3D-Edit. I will pass this off to Michalis for now.
>>>
>>>
>>> JSON and XML attached.
>>>
>>>
>>>
>>> On Wed, Jan 18, 2023 at 6:08 AM John Carlson <yottzumm at gmail.com> wrote:
>>>
>>> Repeat by using:
>>>
>>>
>>>
>>> $ ant create.X3DJSAIL
>>>
>>>
>>>
>>> (update recently done...any other steps required?)
>>>
>>>
>>>
>>> I can't do JSON validation with Java/X3DJSAIL without a jar, I will try
>>> with an older jar with a similar name.
>>>
>>>
>>>
>>> John
>>>
>>>
>>>
>>> On Sun, Jan 15, 2023 at 12:21 AM John Carlson <yottzumm at gmail.com>
>>> wrote:
>>>
>>> I’m hoping some X3DJSAIL/ant people could address this. Patiently
>>> waiting, I haven’t updated my copy today.
>>>
>>>
>>>
>>> On Sat, Jan 14, 2023 at 3:32 AM John Carlson <yottzumm at gmail.com> wrote:
>>>
>>> Error: "org.web3d.x3d.sai.TextureProjector does not exist"
>>>
>>>
>>>
>>> I will try to rebuild from source folder.
>>>
>>>
>>>
>>> John
>>>
>>>
>>>
>>> create.X3DUOM.JAXB.schema:
>>>
>>> [echo] Netbeans 11+ (Java 12+) prerequisite is to include following
>>> in your netbeans.conf file:
>>>
>>> [echo]
>>> -J-Djavax.xml.bind.context.factory=com.sun.xml.bind.v2.ContextFactory
>>>
>>> [echo] Ant xjc with classpath=C:\x3d-code\www.web3d.org
>>> \x3d\stylesheets\java\lib\support\jaxb/*.jar
>>>
>>> [xjc] Consider using <depends>/<produces> so that XJC won't do
>>> unnecessary compilation
>>>
>>> [xjc] Compiling file:/C:/x3d-code/
>>> www.web3d.org/specifications/X3dUnifiedObjectModel.xsd
>>>
>>> [xjc] Writing output to C:\x3d-code\www.web3d.org
>>> \x3d\stylesheets\java\src
>>>
>>> [echo] Compiling org.web3d.x3d.x3duom JAXB classes
>>>
>>> [javac] Compiling 29 source files to C:\x3d-code\www.web3d.org
>>> \x3d\stylesheets\java\classes
>>>
>>> [javac] warning: [options] system modules path not set in
>>> conjunction with -source 16
>>>
>>> [javac] 1 warning
>>>
>>> [echo] create autogenerated Java source code:
>>>
>>> [java] source-code autogeneration assist: $insertSourceMarkers=false
>>>
>>> [copy] Copying 1 file to C:\x3d-code\www.web3d.org
>>> \x3d\stylesheets\java\src\org\web3d\x3d\sai
>>>
>>> [copy] Copying C:\x3d-code\www.web3d.org\x3d\stylesheets\java\X3DJSAIL.html
>>> to C:\x3d-code\www.web3d.org
>>> \x3d\stylesheets\java\src\org\web3d\x3d\sai\overview.html
>>>
>>> [echo] Compiling C:\x3d-code\www.web3d.org\x3d\stylesheets\java\src/org/web3d/x3d/sai
>>> interfaces
>>>
>>> [javac] anomalous package-info.java path: package-info.java
>>>
>>> [javac] Compiling 453 source files to C:\x3d-code\www.web3d.org
>>> \x3d\stylesheets\java\classes
>>>
>>> [javac] warning: [options] system modules path not set in
>>> conjunction with -source 16
>>>
>>> [javac] C:\x3d-code\www.web3d.org\x3d\stylesheets\java\src\org\web3d\x3d\sai\TextureProjection\TextureProjector.java:59:
>>> error: package org.web3d.x3d.sai.TextureProjector does not exist
>>>
>>> [javac] public interface TextureProjector extends
>>> org.web3d.x3d.sai.TextureProjector.X3DTextureProjectorNode
>>>
>>> [javac]
>>> ^
>>>
>>> [javac] C:\x3d-code\www.web3d.org\x3d\stylesheets\java\src\org\web3d\x3d\sai\TextureProjection\TextureProjectorParallel.java:59:
>>> error: package org.web3d.x3d.sai.TextureProjector does not exist
>>>
>>> [javac] public interface TextureProjectorParallel extends
>>> org.web3d.x3d.sai.TextureProjector.X3DTextureProjectorNode
>>>
>>> [javac]
>>>
>>>
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