Lattice 1/3: device-mapping framework (read-only)#4081
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…resolve) Pure, dependency-free model: Fragment/Node/Sensor/AccessPath, merge_fragments (one node per device by serial, ranked access paths, combined sensors), resolve_sensor (preferred entity), and the device_fragment builder. READ-ONLY by design — control is a separate, deferred model. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
LatticeProjection discovers any component publishing a fragment, merges them into the site map, and resolves a device's sensor to its preferred entity. LatticeComponent (registered, phase 2) rebuilds + logs the merged map when lattice_projection_enable is on; no-op when off (default). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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This was referenced Jun 19, 2026
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Superseded by #4147, a single consolidated draft covering the whole Lattice read-slice + merge work (this branch's commits are included there). Closing to keep one draft PR instead of a stack. |
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Reworked to read-only after maintainer feedback (control is premature without a common API; the near-term value is mapping devices + sensors). Control is now a separate, deferred design — see lattice-spec#4.
First of a 3-PR train that maps the devices on a site and inventories their sensors. Read-only, flag-gated (
lattice_projection_enable, default off), touches no control path.Commits:
lattice.py: Fragment/Node/Sensor/AccessPath,merge_fragments(one node per device by serial, ranked access paths),resolve_sensor,device_fragment.LatticeProjection(discover producers, merge, resolve sensor entity) +LatticeComponent(logs the merged device map) + the enable switch.Tests: 12 standalone unit tests (
python -m pytest apps/predbat/test_lattice.py).Train: PR1 (this) → 2 gateway/GE-Cloud producers → 3 Fox/Solax/Solis producers.
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