File size: 12,586 Bytes
54c3e65 1e41561 54c3e65 f11438f 54c3e65 f11438f 54c3e65 f11438f 54c3e65 1e41561 54c3e65 1e41561 f11438f 54c3e65 f11438f 54c3e65 1e41561 f11438f 54c3e65 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 | from __future__ import annotations
import argparse
import io
import json
import sqlite3
import sys
from collections.abc import Sequence
from contextlib import ExitStack
from dataclasses import asdict
from pathlib import Path
from typing import TextIO
from .deberta import MODEL_ID, MODEL_REVISION, DebertaCandidateScorer
from .domain import Candidate, CandidateScorer, RerankConfig, RerankRequest, RerankResult
from .mozc import MOZC_REVISION, MozcDictionaryIndex, build_mozc_index
from .profiles import MOZC_PROFILE_SELECTION_REVISION, MOZC_PROFILES
from .reranker import Reranker
from .sidecar import serve
def _parser() -> argparse.ArgumentParser:
parser = argparse.ArgumentParser(prog="deberta-ime")
subparsers = parser.add_subparsers(dest="command", required=True)
rerank = subparsers.add_parser("rerank", help="rerank JSON Lines from stdin")
rerank.add_argument("--prior-weight", type=float, default=2.0)
rerank.add_argument("--min-margin", type=float, default=0.1)
rerank.add_argument("--device", default="cpu")
rerank.add_argument("--cache-dir", type=Path)
rerank.add_argument("--offline", action="store_true")
rerank.add_argument("--input", type=Path, help="UTF-8 JSONL file (default: stdin)")
rerank.add_argument("--output", type=Path, help="UTF-8 JSONL file (default: stdout)")
serve_parser = subparsers.add_parser(
"serve", help="run a persistent UTF-8 JSON Lines reranking sidecar"
)
serve_parser.add_argument("--device", default="cpu")
serve_parser.add_argument("--cache-dir", type=Path)
serve_parser.add_argument("--offline", action="store_true")
mozc_index = subparsers.add_parser(
"mozc-index", help="build a local SQLite index from Mozc OSS dictionary files"
)
mozc_index.add_argument("--dictionary-dir", type=Path, required=True)
mozc_index.add_argument("--output", type=Path, required=True)
mozc_index.add_argument("--source-revision", default=MOZC_REVISION)
mozc_rerank = subparsers.add_parser(
"mozc-rerank", help="generate finite candidates from a Mozc index and rerank JSON Lines"
)
mozc_rerank.add_argument("--index", type=Path, required=True)
mozc_rerank.add_argument("--profile", choices=tuple(MOZC_PROFILES), default="incremental")
mozc_rerank.add_argument("--candidate-limit", type=int, default=8)
mozc_rerank.add_argument("--device", default="cpu")
mozc_rerank.add_argument("--cache-dir", type=Path)
mozc_rerank.add_argument("--offline", action="store_true")
mozc_rerank.add_argument("--input", type=Path, help="UTF-8 JSONL file (default: stdin)")
mozc_rerank.add_argument("--output", type=Path, help="UTF-8 JSONL file (default: stdout)")
return parser
def _request_from_payload(payload: object) -> RerankRequest:
if not isinstance(payload, dict):
raise ValueError("input must be a JSON object")
reading = payload.get("reading")
raw_candidates = payload.get("candidates")
if not isinstance(reading, str):
raise ValueError("reading must be a string")
if not isinstance(raw_candidates, list):
raise ValueError("candidates must be a list")
candidates: list[Candidate] = []
for raw_candidate in raw_candidates:
if isinstance(raw_candidate, str):
candidates.append(Candidate(raw_candidate))
continue
if not isinstance(raw_candidate, dict) or not isinstance(
raw_candidate.get("surface"), str
):
raise ValueError("each candidate must be a string or an object with surface")
prior_score = raw_candidate.get("prior_score", 0.0)
if not isinstance(prior_score, int | float):
raise ValueError("candidate prior_score must be numeric")
candidates.append(Candidate(raw_candidate["surface"], float(prior_score)))
left = _string_list(payload.get("left_context", []), "left_context")
right = _string_list(payload.get("right_context", []), "right_context")
return RerankRequest(
reading=reading,
candidates=tuple(candidates),
left_context=left,
right_context=right,
)
def _string_list(value: object, name: str) -> tuple[str, ...]:
if not isinstance(value, list) or not all(isinstance(item, str) for item in value):
raise ValueError(f"{name} must be a list of strings")
return tuple(value)
def _mozc_request_from_payload(
payload: object,
index: MozcDictionaryIndex,
*,
candidate_limit: int,
profile: str,
) -> RerankRequest:
if not isinstance(payload, dict):
raise ValueError("input must be a JSON object")
reading = payload.get("reading")
if not isinstance(reading, str):
raise ValueError("reading must be a string")
right_context = _string_list(payload.get("right_context", []), "right_context")
if profile == "incremental" and right_context:
raise ValueError("incremental profile does not accept right_context")
return RerankRequest(
reading=reading,
candidates=index.lookup(reading, limit=candidate_limit),
left_context=_string_list(payload.get("left_context", []), "left_context"),
right_context=right_context,
)
def _result_payload(result: RerankResult) -> dict[str, object]:
return {
"ok": True,
"schema_version": 1,
"model": {"id": MODEL_ID, "revision": MODEL_REVISION},
"reading": result.reading,
"decision": {
"changed": result.changed,
"reason": result.reason,
"margin": result.margin,
},
"ranked": [
{
"surface": item.surface,
"original_rank": item.original_rank,
"prior_score": item.prior_score,
"model_score": item.model_score,
"combined_score": item.combined_score,
}
for item in result.ranked
],
}
def run(
argv: Sequence[str] | None = None,
*,
stdin: TextIO | None = None,
stdout: TextIO | None = None,
stderr: TextIO | None = None,
scorer: CandidateScorer | None = None,
) -> int:
args = _parser().parse_args(argv)
error_stream = stderr or sys.stderr
if args.command == "serve":
active_scorer = scorer or DebertaCandidateScorer(
device=args.device,
cache_dir=args.cache_dir,
local_files_only=args.offline,
)
input_stream = stdin
if input_stream is None:
if isinstance(sys.stdin, io.TextIOWrapper):
sys.stdin.reconfigure(encoding="utf-8", errors="strict")
input_stream = sys.stdin
output_stream = stdout
if output_stream is None:
if isinstance(sys.stdout, io.TextIOWrapper):
sys.stdout.reconfigure(
encoding="utf-8",
errors="strict",
newline="\n",
write_through=True,
)
output_stream = sys.stdout
return serve(input_stream, output_stream, active_scorer)
if args.command == "mozc-index":
try:
manifest = build_mozc_index(
args.dictionary_dir,
args.output,
source_revision=args.source_revision,
)
except (OSError, ValueError, sqlite3.Error) as error:
error_stream.write(f"error: {error}\n")
return 2
output_stream = stdout or sys.stdout
output_stream.write(
json.dumps(
{"ok": True, "schema_version": 1, "manifest": asdict(manifest)},
ensure_ascii=False,
separators=(",", ":"),
)
)
output_stream.write("\n")
return 0
if args.command == "mozc-rerank":
if (
args.input is not None
and args.output is not None
and args.input.resolve() == args.output.resolve()
):
error_stream.write("error: --input and --output must be different paths\n")
return 2
active_scorer = scorer or DebertaCandidateScorer(
device=args.device,
cache_dir=args.cache_dir,
local_files_only=args.offline,
)
selected_profile = MOZC_PROFILES[args.profile]
reranker = Reranker(active_scorer, selected_profile)
try:
index = MozcDictionaryIndex(args.index)
except (OSError, ValueError, sqlite3.Error) as error:
error_stream.write(f"error: cannot open Mozc index: {error}\n")
return 2
with index, ExitStack() as stack:
input_stream = (
stack.enter_context(args.input.open(encoding="utf-8"))
if args.input is not None
else (stdin or sys.stdin)
)
output_stream = (
stack.enter_context(args.output.open("w", encoding="utf-8", newline="\n"))
if args.output is not None
else (stdout or sys.stdout)
)
exit_code = 0
for line_number, raw_line in enumerate(input_stream, start=1):
if not raw_line.strip():
continue
try:
request = _mozc_request_from_payload(
json.loads(raw_line),
index,
candidate_limit=args.candidate_limit,
profile=args.profile,
)
payload = _result_payload(reranker.rerank(request))
payload["candidate_source"] = {
"kind": "mozc_oss_dictionary_index",
"source_revision": index.manifest.source_revision,
"limit": args.candidate_limit,
}
payload["profile"] = args.profile
payload["profile_config"] = {
"prior_weight": selected_profile.prior_weight,
"min_margin": selected_profile.min_margin,
"selected_on_revision": MOZC_PROFILE_SELECTION_REVISION,
}
except (json.JSONDecodeError, ValueError, TypeError) as error:
payload = {
"ok": False,
"schema_version": 1,
"line": line_number,
"error": str(error),
}
exit_code = 2
output_stream.write(
json.dumps(payload, ensure_ascii=False, separators=(",", ":"))
)
output_stream.write("\n")
return exit_code
if (
args.input is not None
and args.output is not None
and args.input.resolve() == args.output.resolve()
):
error_stream.write("error: --input and --output must be different paths\n")
return 2
active_scorer = scorer or DebertaCandidateScorer(
device=args.device,
cache_dir=args.cache_dir,
local_files_only=args.offline,
)
reranker = Reranker(
active_scorer,
RerankConfig(prior_weight=args.prior_weight, min_margin=args.min_margin),
)
with ExitStack() as stack:
input_stream = (
stack.enter_context(args.input.open(encoding="utf-8"))
if args.input is not None
else (stdin or sys.stdin)
)
output_stream = (
stack.enter_context(args.output.open("w", encoding="utf-8", newline="\n"))
if args.output is not None
else (stdout or sys.stdout)
)
exit_code = 0
for line_number, raw_line in enumerate(input_stream, start=1):
if not raw_line.strip():
continue
try:
request = _request_from_payload(json.loads(raw_line))
payload = _result_payload(reranker.rerank(request))
except (json.JSONDecodeError, ValueError, TypeError) as error:
payload = {
"ok": False,
"schema_version": 1,
"line": line_number,
"error": str(error),
}
exit_code = 2
output_stream.write(json.dumps(payload, ensure_ascii=False, separators=(",", ":")))
output_stream.write("\n")
return exit_code
def main() -> None:
raise SystemExit(run())
if __name__ == "__main__":
main()
|