Cache completion based on XML Schema/DTD

[arkceajin]

settings.json:

{
    "xml.java.home": "C:\\Program Files\\java-1.8.0-openjdk-1.8.0.212-3.b04.redhat.windows.x86_64",
    "xml.catalogs": ["file:///C:/Users/s-jiu/Desktop/AP-R19-03/MethodologyAndManifests/AUTOSAR_MMOD_XMLSchema/AUTOSAR_00047.xsd"],
    "xml.fileAssociations": [{
        "systemId": "file:///C:/Users/s-jiu/Desktop/AP-R19-03/MethodologyAndManifests/AUTOSAR_MMOD_XMLSchema/AUTOSAR_00047.xsd",
        "pattern": "*.arxml"
    }]
}

arxml:

<?xml version="1.0" encoding="UTF-8"?>
<AUTOSAR xmlns="http://autosar.org/schema/r4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://autosar.org/schema/r4.0 AUTOSAR_00047.xsd">
 ...
</AUTOSAR>

How to set the xsi:schemaLocation and "systemId" to making the xsd relate to the arxml?

[angelozerr]

You are using fileAssociation and XML catalog both. You must choose your binding kind.

• xml.catalog must use a XML catalog file. In your case it link to xsd, it should be a XML catalog file. See https://www.oasis-open.org/committees/download.php/14809/xml-catalogs.html
• xml.fileAssociations doesn't require a schemaLocation.

I suggest you that you attach in this issue a zip of your vscode project.

[arkceajin]

I suggest you that you attach in this issue a zip of your vscode project.

The project only contain a arxml which I going to create by using the xsd.
xsd: https://github.com/autosaros/Standards/blob/master/Adaptive%20Platform/19.03/MethodologyAndManifests/AUTOSAR_MMOD_XMLSchema/AUTOSAR_00047.xsd

I tried create the xml and put in the same folder with xsd.

<?xml version="1.0"?>
<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
  <uri name="http://autosar.org/schema/r4.0 AUTOSAR_00047.xsd" uri="file://./AUTOSAR_00047.xsd" />
</catalog>

But still not working...

[angelozerr]

@arkceajin at first vscode-xml doesn't support *.arxml I suggest you to rename to .xml file.

@fbricon @NikolasKomonen @xorye do you know if it's possible to customize this file extension by user?

If it doesn't work, @arkceajin please share your vscode project. Your error could come from your settings.json for instance if the catalog path is not good.

[fbricon]

arxml and xsd files in the same folder, it works for me, but it's very slow, as the xsd is over 7MB. I increased the memory attributed to lsp4xml to 256MB in settings.json:

"xml.server.vmargs": "-noverify -Xmx256m -XX:+UseG1GC -XX:+UseStringDeduplication -Dlog.level=off",

[angelozerr]

but it's very slow

If I remember, today when XSD file is on the local, it is parsed every time:

• when validation is done
• when completion is done.

It should be improved by caching the XSD.

[arkceajin]

@fbricon Thanks, using the setting and without xml.catalogs simply put XML and XSD in the same folder could work well. So the problem is just the loading was too slow...

[angelozerr]

So the problem is just the loading was too slow...

You mean that completion based on XML Schema to show in completion INTRODUCTION, FORMULA, etc is slow?

[arkceajin]

@angelozerr Yes, after specific "xml.server.vmargs": "-noverify -Xmx256m -XX:+UseG1GC -XX:+UseStringDeduplication -Dlog.level=off", the completion popup almost immediately.

[angelozerr]

@arkceajin just to clarify this issue:

• when you set `"xml.server.vmargs" it works for you. Completion opens INTRODUCTION, FORMULA. Is it slow again?
• when you don't set `"xml.server.vmargs", you see nothing.

Is that?

[arkceajin]

Not nothing but sometimes popup Loading or sometimes popup dialog doesn't contain the completions as below:

Correct completions:

[angelozerr]

Thanks @adelasofia for your feedback. I'm working on this issue eclipse-lemminx/lemminx#547