feat(docs): update README to reflect JSON-LD conversion implementation

- mark task 04 as implemented in the project overview
- add convert_json.py as the entry script for task 04
- clarify output paths for JSON-LD conversion artifacts
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administrator
2026-07-11 14:21:13 -04:00
parent e3359383c0
commit 9364808b3d
3 changed files with 395 additions and 1 deletions

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@@ -60,7 +60,7 @@ machine (no parallel work). Every task writes a completion marker
| 01 Lab configuration | `make_lab_config.py` | `out/config/lab_config.yaml` | implemented |
| 02 Process flow diagrams | `make_process_flow.py` | `out/report/process_flow.md`, `out/report/diagrams/` | implemented |
| 03 CSV data generation | `generate_data.py` | `out/csv/` tree + `MANIFEST.csv` | implemented |
| 04 Convert to JSON-LD | `convert_json.py` | `out/json/full/`, `out/json/hybrid/dataset.jsonld` | planned |
| 04 Convert to JSON-LD | `convert_json.py` | `out/json/full/`, `out/json/hybrid/dataset.jsonld` | implemented |
| 05 Convert to SQLite | `convert_sqlite.py` | `out/sqlite/tribo.db` | planned |
| 06 Convert to PostgreSQL | `convert_postgresql.py` | live `tribo` DB + `out/pg/tribo.dump` | planned |
| 07 Convert to RDF | `convert_rdf.py` | `out/rdf/dataset.nt.gz`, oxigraph store | planned |
@@ -145,9 +145,11 @@ docs/
examples/ imported reference materials (not binding)
out/ ALL generated artifacts (git-ignored, reproducible):
config/ csv/ json/ sqlite/ pg/ rdf/ bench/ report/ .done/
common/ shared helpers (storage_sizes.csv contract, ...)
make_lab_config.py task 01 entry script (one script per task, repo root)
make_process_flow.py task 02 entry script
generate_data.py task 03 entry script
convert_json.py task 04 entry script
requirements.txt closed dependency list (docs/rules/code-python-style.md)
```

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common/storage_sizes.py Normal file
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@@ -0,0 +1,31 @@
"""Idempotent per-format updates to out/bench/storage_sizes.csv.
Contract (docs/rules/build-pipeline-tasks.md section 4): columns
format,variant,bytes; a task re-run REPLACES its own format's rows and never
touches other formats' rows.
"""
from __future__ import annotations
import logging
from pathlib import Path
logger = logging.getLogger(__name__)
HEADER = "format,variant,bytes"
def update_storage_sizes(bench_dir: Path, fmt: str, variants: list[tuple[str, int]]) -> Path:
path = bench_dir / "storage_sizes.csv"
kept: list[str] = []
if path.exists():
lines = path.read_text(encoding="ascii").splitlines()
if lines and lines[0] != HEADER:
raise ValueError(f"{path}: unexpected header {lines[0]!r}")
kept = [ln for ln in lines[1:] if ln and ln.split(",", 1)[0] != fmt]
rows = kept + [f"{fmt},{variant},{nbytes}" for variant, nbytes in variants]
bench_dir.mkdir(parents=True, exist_ok=True)
with open(path, "w", encoding="ascii", newline="\n") as fh:
fh.write(HEADER + "\n" + "\n".join(rows) + "\n")
logger.info("storage_sizes.csv: %s -> %s", fmt, ", ".join(f"{v}={b}" for v, b in variants))
return path

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convert_json.py Normal file
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"""Task 04 - Convert the CSV corpus to JSON-LD.
Reads ./out/csv/ (validated file-by-file against MANIFEST.csv) and writes
two ontology-annotated variants:
- FULL: one compact JSON-LD file per coupon under ./out/json/full/, bulk
points embedded. Like spec 07's RDF modeling, bulk points (cycles, loop
points, map points) carry no @type - the containing predicate types them;
this keeps FULL lean, so its size lands below the 0.7-1.2 GB the spec
sketched for a fully typed serialization.
- HYBRID: single ./out/json/hybrid/dataset.jsonld holding every metadata
entity; every per-point array (cycles, loops, xrf, profilometry, indents)
is replaced by a {sourceFile, rows, sha256} reference into the CSV tree.
Appends both sizes to ./out/bench/storage_sizes.csv and writes
./out/.done/04.ok. Spec: docs/specs/04_convert_json.md.
"""
from __future__ import annotations
import argparse
import hashlib
import json
import logging
import re
import shutil
import sys
from pathlib import Path
import yaml
from rdflib import Graph
from common.storage_sizes import update_storage_sizes
logger = logging.getLogger(__name__)
REPO_ROOT = Path(__file__).resolve().parent
TASK_ID = "04"
DEPENDS_ON = ["01", "03"]
VOCAB = "https://sandia.gov/ontology/tribology#"
ID_BASE = "https://sandia.gov/ontology/tribology/id/"
CONTEXT = {
"@vocab": VOCAB,
"tribo": VOCAB,
"qudt": "http://qudt.org/schema/qudt/",
"unit": "http://qudt.org/vocab/unit/",
"prov": "http://www.w3.org/ns/prov#",
"batch": ID_BASE + "batch/",
"wafer": ID_BASE + "wafer/",
"coupon": ID_BASE + "coupon/",
"track": ID_BASE + "track/",
"run": ID_BASE + "run/",
"instrument": ID_BASE + "instrument/",
"partOf": {"@id": "tribo:partOf", "@type": "@id"},
"cutFrom": {"@id": "tribo:cutFrom", "@type": "@id"},
"performedOn": {"@id": "tribo:performedOn", "@type": "@id"},
"performedBy": {"@id": "tribo:performedBy", "@type": "@id"},
"duringRun": {"@id": "tribo:duringRun", "@type": "@id"},
"started_at": {"@id": "prov:startedAtTime"},
}
INT_RE = re.compile(r"^-?[0-9]+$")
FLOAT_RE = re.compile(r"^-?([0-9]+\.[0-9]*|\.[0-9]+|[0-9]+)([eE][+-]?[0-9]+)?$")
MEASUREMENTS = [
# (csv file, json key, @type, instrument id, points key)
("xrf_map.csv", "xrf", "CompositionMeasurement", "m4_tornado", "points"),
("profilometry.csv", "profilometry", "ProfilometryMeasurement", "profilometer", "points"),
("nanoindentation.csv", "nanoindentation", "NanoindentationMeasurement", "ti980", "indents"),
]
class ValidationError(RuntimeError):
pass
def coerce(s: str) -> int | float | str:
if INT_RE.match(s):
return int(s)
if FLOAT_RE.match(s):
return float(s)
return s
class JsonConverter:
def __init__(self, cfg: dict, csv_root: Path, json_root: Path) -> None:
self.cfg = cfg
self.csv_root = csv_root
self.json_root = json_root
self.manifest = self._load_manifest()
self.graph: list[dict] = [] # hybrid metadata entities
self.full_bytes = 0
self.full_files = 0
self.counts = {"coupons": 0, "tracks": 0, "cycle_rows": 0, "loop_rows": 0, "xrf_rows": 0}
def _load_manifest(self) -> dict[str, tuple[int, int, str]]:
manifest: dict[str, tuple[int, int, str]] = {}
with open(self.csv_root / "MANIFEST.csv", encoding="ascii") as fh:
header = fh.readline().strip()
if header != "path,rows,bytes,sha256":
raise ValidationError(f"MANIFEST.csv: unexpected header {header!r}")
for line in fh:
path, rows, nbytes, sha = line.strip().split(",")
manifest[path] = (int(rows), int(nbytes), sha)
logger.info("manifest loaded: %d entries", len(manifest))
return manifest
def read_csv(self, relpath: str) -> tuple[list[str], list[list[str]]]:
"""Read one corpus file, verifying bytes and row count against MANIFEST."""
data = (self.csv_root / relpath).read_bytes()
exp_rows, exp_bytes, exp_sha = self.manifest[relpath]
if len(data) != exp_bytes or hashlib.sha256(data).hexdigest() != exp_sha:
raise ValidationError(f"{relpath}: bytes/sha256 mismatch vs MANIFEST")
lines = data.decode("ascii").split("\n")
header = lines[0].split(",")
rows = [ln.split(",") for ln in lines[1:] if ln]
if len(rows) != exp_rows:
raise ValidationError(f"{relpath}: {len(rows)} rows != manifest {exp_rows}")
return header, rows
def rows_as_dicts(self, relpath: str) -> list[dict]:
header, rows = self.read_csv(relpath)
keys = [h.lower() for h in header]
return [
{k: coerce(v) for k, v in zip(keys, row) if v != ""}
for row in rows
]
def source_ref(self, relpath: str) -> dict:
rows, _, sha = self.manifest[relpath]
return {"sourceFile": relpath, "rows": rows, "sha256": sha}
# --- flat entities (hybrid graph) ---
def convert_flat(self) -> None:
for inst in self.cfg["instruments"]:
self.graph.append({
"@id": f"instrument:{inst['instrument_id']}",
"@type": "Instrument",
"name": inst["name"],
"role": inst["role"],
})
for row in self.rows_as_dicts("batches.csv"):
self.graph.append({"@id": f"batch:{row['batch_code']}", "@type": "Batch", **row})
self.graph.append({
"@id": f"batch:{row['batch_code']}-simtra",
"@type": "SimtraProfile",
"performedOn": f"batch:{row['batch_code']}",
"performedBy": "instrument:simtra",
**self.source_ref(f"simtra/simtra_profile_{row['batch_code']}.csv"),
})
for row in self.rows_as_dicts("runs.csv"):
self.graph.append({"@id": f"run:{row['run_code']}", "@type": "Run", **row})
# --- per-coupon conversion ---
def convert_coupons(self) -> None:
h = self.cfg["hierarchy"]
full_dir = self.json_root / "full"
full_dir.mkdir(parents=True, exist_ok=True)
for batch in self.cfg["deposition_matrix"]:
b_code = batch["batch_code"]
for w in range(1, h["wafers_per_batch"] + 1):
wafer_code = f"{b_code}-W{w}"
wafer_dir = f"batch_{b_code}/wafer_W{w}"
info = self.rows_as_dicts(f"{wafer_dir}/wafer_info.csv")[0]
self.graph.append({
"@id": f"wafer:{wafer_code}", "@type": "Wafer",
"partOf": f"batch:{b_code}", **info,
})
for c in range(1, h["coupons_per_wafer"] + 1):
self.convert_coupon(f"{wafer_dir}/coupon_C{c:02d}", full_dir)
logger.debug("wafer %s converted", wafer_code)
logger.info("batch %s converted: %.1f MiB full so far", b_code, self.full_bytes / (1024 * 1024))
def convert_coupon(self, rel_dir: str, full_dir: Path) -> None:
info = self.rows_as_dicts(f"{rel_dir}/coupon_info.csv")[0]
code = info["coupon_code"]
coupon_id = f"coupon:{code}"
is_friction = info["run_code"] != "RESERVE"
full_node: dict = {
"@context": CONTEXT, "@id": coupon_id, "@type": "Coupon",
"cutFrom": f"wafer:{info['wafer_code']}", **info,
}
hybrid_node: dict = {
"@id": coupon_id, "@type": "Coupon",
"cutFrom": f"wafer:{info['wafer_code']}", **info,
}
for csv_name, key, cls, inst, points_key in MEASUREMENTS:
relpath = f"{rel_dir}/{csv_name}"
meta = {"@type": cls, "performedOn": coupon_id, "performedBy": f"instrument:{inst}"}
full_node[key] = {**meta, points_key: self.rows_as_dicts(relpath)}
hybrid_node[key] = {**meta, **self.source_ref(relpath)}
self.counts["xrf_rows"] += self.manifest[f"{rel_dir}/xrf_map.csv"][0]
afm = self.rows_as_dicts(f"{rel_dir}/afm.csv")[0]
afm_node = {"@type": "AFMMeasurement", "performedOn": coupon_id, "performedBy": "instrument:afm", **afm}
full_node["afm"] = afm_node
hybrid_node["afm"] = afm_node
if is_friction:
tracks_full = []
for t in range(1, self.cfg["friction_assignment"]["tracks_per_friction_coupon"] + 1):
full_track, hybrid_track = self.convert_track(f"{rel_dir}/track_T{t}", coupon_id, info["run_code"])
tracks_full.append(full_track)
self.graph.append(hybrid_track)
full_node["tracks"] = tracks_full
out_path = full_dir / f"{code}.jsonld"
text = json.dumps(full_node, separators=(",", ":"))
data = text.encode("ascii")
out_path.write_bytes(data)
self.full_bytes += len(data)
self.full_files += 1
self.graph.append(hybrid_node)
self.counts["coupons"] += 1
def convert_track(self, rel_dir: str, coupon_id: str, run_code: str) -> tuple[dict, dict]:
info = self.rows_as_dicts(f"{rel_dir}/track_info.csv")[0]
track_id = f"track:{info['track_code']}"
base = {
"@id": track_id, "@type": "FrictionTest",
"partOf": coupon_id, "duringRun": f"run:{run_code}",
"performedBy": "instrument:rapid", **info,
}
wear = self.rows_as_dicts(f"{rel_dir}/wear.csv")[0]
wear_node = {"@type": "WearMeasurement", **wear}
cycles_path = f"{rel_dir}/cof_vs_cycle.csv"
loops_path = f"{rel_dir}/friction_loops.csv"
full_track = {
**base,
"cycles": self.rows_as_dicts(cycles_path),
"loop_points": self.rows_as_dicts(loops_path),
"wear": wear_node,
}
hybrid_track = {
**base,
"cycles": self.source_ref(cycles_path),
"loop_points": self.source_ref(loops_path),
"wear": wear_node,
}
self.counts["cycle_rows"] += len(full_track["cycles"])
self.counts["loop_rows"] += len(full_track["loop_points"])
self.counts["tracks"] += 1
return full_track, hybrid_track
# --- outputs ---
def write_hybrid(self) -> int:
hybrid_dir = self.json_root / "hybrid"
hybrid_dir.mkdir(parents=True, exist_ok=True)
path = hybrid_dir / "dataset.jsonld"
with open(path, "w", encoding="ascii", newline="\n") as fh:
json.dump({"@context": CONTEXT, "@graph": self.graph}, fh, separators=(",", ":"))
return path.stat().st_size
def validate_counts(self) -> None:
v = self.cfg["volumes"]
expected = {
"coupons": v["coupons_total"],
"tracks": v["tracks_total"],
"cycle_rows": v["cycle_rows_total"],
"loop_rows": v["loop_points_total"],
"xrf_rows": v["xrf_points_total"],
}
for key, exp in expected.items():
if self.counts[key] != exp:
raise ValidationError(f"count mismatch: {key}: converted {self.counts[key]} != expected {exp}")
logger.info("all converted counts match lab_config volumes: %s", self.counts)
def validate_sample(paths: list[Path]) -> None:
"""Smoke test (spec 04 + test-pipeline-validation): json.load + rdflib parse."""
for path in paths:
with open(path, encoding="ascii") as fh:
json.load(fh)
g = Graph()
g.parse(path, format="json-ld")
if len(g) == 0:
raise ValidationError(f"{path}: rdflib parsed 0 triples")
logger.info("sample %s: valid JSON, %d triples via rdflib", path.name, len(g))
def check_dependencies(out_root: Path) -> None:
for dep in DEPENDS_ON:
marker = out_root / ".done" / f"{dep}.ok"
if not marker.exists():
raise FileNotFoundError(f"dependency marker missing: {marker} - run task {dep} first")
def write_marker(marker_path: Path, conv: JsonConverter, hybrid_bytes: int) -> None:
lines = [
f"task: '{TASK_ID}'",
"status: ok",
f"full_files: {conv.full_files}",
f"full_bytes: {conv.full_bytes}",
f"hybrid_bytes: {hybrid_bytes}",
f"coupons: {conv.counts['coupons']}",
f"tracks: {conv.counts['tracks']}",
f"cycle_rows: {conv.counts['cycle_rows']}",
f"loop_points: {conv.counts['loop_rows']}",
]
marker_path.parent.mkdir(parents=True, exist_ok=True)
with open(marker_path, "w", encoding="utf-8", newline="\n") as fh:
fh.write("\n".join(lines) + "\n")
def main() -> int:
parser = argparse.ArgumentParser(description="Task 04: convert the CSV corpus to JSON-LD")
parser.add_argument("--log-level", default="INFO", choices=["DEBUG", "INFO", "WARNING", "ERROR"])
parser.add_argument("--out-root", type=Path, default=REPO_ROOT / "out", help="artifact tree root (default: ./out)")
args = parser.parse_args()
logging.basicConfig(
level=args.log_level,
stream=sys.stderr,
format="%(asctime)s %(levelname)-7s %(name)s: %(message)s",
)
out_root: Path = args.out_root
json_root = out_root / "json"
marker_path = out_root / ".done" / f"{TASK_ID}.ok"
try:
check_dependencies(out_root)
if marker_path.exists():
logger.info("re-run: removing stale marker %s", marker_path)
marker_path.unlink()
if json_root.exists():
logger.info("re-run: removing previous output %s", json_root)
shutil.rmtree(json_root)
with open(out_root / "config" / "lab_config.yaml", encoding="utf-8") as fh:
cfg = yaml.safe_load(fh)
conv = JsonConverter(cfg, out_root / "csv", json_root)
conv.convert_flat()
conv.convert_coupons()
conv.validate_counts()
hybrid_bytes = conv.write_hybrid()
validate_sample([
json_root / "full" / "B722-W2-C13.jsonld",
json_root / "hybrid" / "dataset.jsonld",
])
update_storage_sizes(out_root / "bench", "json", [("full", conv.full_bytes), ("hybrid", hybrid_bytes)])
write_marker(marker_path, conv, hybrid_bytes)
except Exception:
logger.critical("task %s failed", TASK_ID, exc_info=True)
return 1
print(f"task 04 ok: full {conv.full_files} files, {conv.full_bytes / (1024 * 1024):.1f} MiB; "
f"hybrid {hybrid_bytes / (1024 * 1024):.1f} MiB")
print(f"entities: coupons={conv.counts['coupons']} tracks={conv.counts['tracks']} "
f"cycles={conv.counts['cycle_rows']} loop_points={conv.counts['loop_rows']}")
print(f"marker: {marker_path}")
return 0
if __name__ == "__main__":
sys.exit(main())