[3.1-3.5] FAM-Edge 全链路 - API-Gateway/Video-Preprocessor/AI-Orchestrator/模型适配器(基类+Ollama+Gemini)/熔断器/JSON解析容错 + 配置

fam-edge/src/fam_edge/model_adapters/adapter_factory.py

@@ -0,0 +1,54 @@
+"""
+适配器工厂 - 根据 config 创建适配器实例
+
+新增模型只需:
+1. 实现适配器类（继承 BaseModelAdapter）
+2. 在此工厂注册
+3. 在 config.yaml 的 models 数组加一项
+"""
+from typing import List
+
+from .base_adapter import BaseModelAdapter
+from .ollama_adapter import OllamaAdapter
+from .gemini_adapter import GeminiAdapter
+from ..logger import setup_logger
+
+logger = setup_logger('fam-edge.adapter_factory')
+
+_ADAPTER_REGISTRY = {
+    "ollama": OllamaAdapter,
+    "gemini": GeminiAdapter,
+    # v1.1 扩展:
+    # "openai": OpenAIAdapter,
+    # "nvidia": NvidiaAdapter,
+}
+
+
+def build_adapter(config: dict) -> BaseModelAdapter:
+    """根据 config 中的 provider 字段创建适配器"""
+    provider = config.get('provider', '')
+    adapter_cls = _ADAPTER_REGISTRY.get(provider)
+    if adapter_cls is None:
+        raise ValueError(f"未知的模型 provider: {provider}，请先注册适配器")
+    return adapter_cls(config)
+
+
+def build_adapters(configs: List[dict]) -> List[BaseModelAdapter]:
+    """批量创建适配器（仅 enabled 的）"""
+    adapters = []
+    for cfg in configs:
+        if not cfg.get('enabled', False):
+            continue
+        try:
+            adapter = build_adapter(cfg)
+            adapters.append(adapter)
+            logger.info(f"适配器已创建: {adapter.provider_name} ({cfg.get('model_name', '?')})")
+        except Exception as e:
+            logger.error(f"创建适配器失败 ({cfg.get('provider', '?')}): {e}")
+    return adapters
+
+
+def register_adapter(provider_name: str, adapter_cls):
+    """注册新适配器（供扩展使用）"""
+    _ADAPTER_REGISTRY[provider_name] = adapter_cls
+    logger.info(f"适配器已注册: {provider_name}")