jadn 0.5.3

JADN schema tools

This Python package contains software for processing and using JADN Information Models to serialize and validate application data. The software is organized by function:

• core: Load, validate, and save a JADN schema. Defined constants for the JADN data format.

• codec: Validate, encode, and decode application data using a JADN schema

• convert: Convert a JADN schema to a documentation format

  • text-based Interface Definition Language (IDL)

  • html tables

  • markdown tables

  • JSON with JADN whitespacing

• transform: Process a JADN schema to produce another JADN schema

  • resolve definitions from separate schemas into a single schema (include/import)

  • split a schema that defines multiple objects into separate schemas for each object

  • remove unreferenced definitions

  • remove or truncate comments to a fixed width

• translate: Convert a JADN schema into a concrete schema language

  • JSON Schema

  • XSD

  • CDDL

  • Protobuf

The JADN schema language is defined in https://github.com/oasis-tcs/openc2-jadn/blob/working/jadn-v1.0-wd01.md.

Quickstart

The quickstart.py script in https://github.com/davaya/jadn-pypkg/tree/master/distribution illustrates how to use these functions:

• define and validate a small schema

• display the schema in IDL format

• truncate comments

• translate to JSON Schema (translator requires metadata for scheme $id and the type to be validated)

• validate and serialize test messages:

  • JSON data format

  • Optimized (minified) JSON data format