AI Code Report — 2025-09-15T17:34:16Z

Objective

Create a proof-of-concept Draw.io plugin that exposes an RDF/XML export option, register it so the editor can load it like built-in plugins, describe how to use it, and document the engineering work.

Repository analysis

  • Located the plugin infrastructure under src/main/webapp/plugins/ and reviewed existing samples (svgdata.js, tags.js, anonymize.js) to understand how actions are registered and menus are extended.

  • Inspected App.js and app.min.js to learn how plugins are registered and exposed to the plug-in dialog via App.pluginRegistry and App.publicPlugin.

  • Confirmed that production builds rely on the minified bundle by reading index.html, which meant registry updates had to land in both the source and minified versions.

Implementation summary

  1. New plugin file — Added src/main/webapp/plugins/rdfexport.js that registers an exportRdfXml action. The plugin:

    • Builds a new DOM document rooted at <rdf:RDF> with both the RDF and example namespaces declared.

    • Clones the editor’s <mxGraphModel> tree using createElementNS so each element becomes an example:* node while all attributes/text nodes are preserved, using the element returned by editorUi.editor.getGraphXml() directly to avoid dropping the model from the export.

    • Wraps the cloned tree inside <example:Diagram> tagged with rdf:about="urn:diagram:{pageId}" and a human-readable title element.

    • Hooks into the File → Export as menu to surface the new action and uses editorUi.saveData to produce a .rdf download with MIME type application/rdf+xml.

  2. Registry updates — Extended App.pluginRegistry / App.publicPlugin in both App.js and app.min.js with the rdf identifier so the plugin can be loaded via ?p=rdf and appears in the plugin manager.

  3. User documentation — Authored docs/plugins/rdfexport/README.md describing how to enable the plugin (URL parameter or plugin dialog) and what the exporter produces.

  4. Engineering log — Recorded these steps in this report for future reference.

Testing

  • No automated test harness exists in this repository (no package.json or documented build scripts). The changes are isolated to a plugin and related documentation, so no commands were executed. Manual verification guidance is captured in the README.

Follow-up ideas

  • Expand the exporter to cover multi-page diagrams and embed richer RDF semantics instead of the current namespace-only clone.

  • Add a round-trip smoke test that ensures the plugin action generates valid XML by parsing it before download when running in development mode.