wodson

A collection of ASAM ODS tools.

Features

Experimental ATFX parser

This is an experimental ATFX reader. Target is not correctness or completeness, but a working prototype that can read some real-world ATFX files and be used as a base for further experiments. It currently supports:

• Parses ATFX XML files (ASAM ODS 5.1, 5.3, 6.2 schemas)
• Reads optional external binary .dat files (all standard typespecs)
• Loads everything into an in-memory SQLite database
• Exposes ods.Model (application model) and ods.DataMatrices (data-read)
• Embeddable Python library (AtfxStore)
• Standalone HTTP server compatible with odsbox.ConI (AtfxServer)
• CLI: uv run wodson atfx serve --file path/to/file.atfx
• High-level DataFrame convenience API (AtfxFile)

Requirements

• Python ≥ 3.14
• odsbox ≥ 1.2.0
• numpy ≥ 2.0

Installation

pip install wodson
# or with uv:
uv add wodson

Quick Start

See docs/atfx.md for usage examples (embedded library, HTTP server, CLI).

Project Layout

src/wodson/
    __init__.py          Package root
    _cli.py              CLI entry point (wodson atfx serve …)
    atfx/
        __init__.py          Public API (AtfxFile, AtfxStore, AtfxServer, AtfxSession, …)
        _cli.py              atfx subcommand logic
        base_model/          ASAM ODS base model protobuf JSON files
        _atfx_file.py        AtfxFile — high-level DataFrame + JAQueL wrapper
                  ODSBaseModel_asam37.protobuf.json
        _atfx_store.py       AtfxStore — parses + loads ATFX into SQLite
        _server.py           AtfxServer — ASAM ODS HTTP server
        _session.py          AtfxSession — in-process requests adapter
        _base_model.py       Loads ODSBaseModel JSON → ods.BaseModel
        _model_builder.py    Builds ods.Model from <application_model> XML
        _instance_parser.py  Parses <instance_data> (inline + external)
        _binary_reader.py    Reads external .dat binary files via numpy
        _db.py               SQLite schema creation + instance loading
        _data_read.py        SelectStatement → SQL → DataMatrices
        _xml_utils.py        Namespace-aware XML element lookup helpers
        _naming.py           ODS name → SQLite identifier utilities
docs/
    atfx.md              ATFX reader quick-start guide
    USAGE.md             Full end-user usage guide
    spec/                ASAM schema files and base model JSON
tests/                   pytest test suite

Development

# Install with dev dependencies
uv sync

# Run tests
uv run pytest tests/ -v

# Lint
uv run ruff check src/ tests/

# Type check
uv run mypy --strict src/

See docs/USAGE.md for detailed end-user documentation.