5e4dc8e4
 tangwang
翻译架构按“一个翻译服务 +
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"""HTTP client for the translation service."""
from __future__ import annotations
import logging
from typing import List, Optional, Sequence, Union
import requests
from config.services_config import get_translation_config
logger = logging.getLogger(__name__)
class TranslationServiceClient:
"""Business-side translation client that talks to the translator service."""
def __init__(
self,
*,
base_url: Optional[str] = None,
default_model: Optional[str] = None,
default_scene: Optional[str] = None,
timeout_sec: Optional[float] = None,
) -> None:
cfg = get_translation_config()
self.base_url = (base_url or cfg.service_url).rstrip("/")
self.default_model = cfg.normalize_model_name(default_model or cfg.default_model)
self.default_scene = (default_scene or cfg.default_scene or "general").strip() or "general"
self.timeout_sec = float(timeout_sec or cfg.timeout_sec or 10.0)
@property
def model(self) -> str:
return self.default_model
@property
def supports_batch(self) -> bool:
return True
def translate(
self,
text: Union[str, Sequence[str]],
target_lang: str,
source_lang: Optional[str] = None,
context: Optional[str] = None,
prompt: Optional[str] = None,
model: Optional[str] = None,
scene: Optional[str] = None,
) -> Union[Optional[str], List[Optional[str]]]:
if isinstance(text, tuple):
text = list(text)
payload = {
"text": text,
"target_lang": target_lang,
"source_lang": source_lang or "auto",
"model": (model or self.default_model),
"scene": (scene or context or self.default_scene),
}
if prompt:
payload["prompt"] = prompt
try:
response = requests.post(
f"{self.base_url}/translate",
json=payload,
timeout=self.timeout_sec,
)
if response.status_code != 200:
logger.warning(
"Translation service request failed: status=%s body=%s",
response.status_code,
(response.text or "")[:300],
)
return self._empty_result_for(text)
data = response.json()
return data.get("translated_text")
except Exception as exc:
logger.warning("Translation service request error: %s", exc, exc_info=True)
return self._empty_result_for(text)
@staticmethod
def _empty_result_for(
text: Union[str, Sequence[str]],
) -> Union[Optional[str], List[Optional[str]]]:
if isinstance(text, (list, tuple)):
return [None for _ in text]
return None
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