perf: 优化‘嵌入模型’工厂，添加缓存机制

ruoyi-modules-api/ruoyi-knowledge-api/src/main/java/org/ruoyi/embedding/EmbeddingModelFactory.java

@@ -1,6 +1,7 @@
 package org.ruoyi.embedding;
 
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.ruoyi.domain.vo.ChatModelVo;
 import org.ruoyi.service.IChatModelService;
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
@@ -18,38 +19,50 @@ import java.util.concurrent.ConcurrentHashMap;
  */
 @Service
 @RequiredArgsConstructor
+@Slf4j
 public class EmbeddingModelFactory {
+
     private final ApplicationContext applicationContext;
 
-    private final IChatModelService iChatModelService;
+    private final IChatModelService chatModelService;
 
-    private final Map<String, BaseEmbedModelService> modelCache = new ConcurrentHashMap<>();
+    // 模型缓存，使用ConcurrentHashMap保证线程安全
+    private final Map<Long, BaseEmbedModelService> modelCache = new ConcurrentHashMap<>();
 
+    /**
+     * 创建嵌入模型实例
+     * 如果模型已存在于缓存中，则直接返回；否则创建新的实例
+     *
+     * @param embeddingModelId 嵌入模型的唯一标识ID
+     * @return BaseEmbedModelService 嵌入模型服务实例
+     */
     public BaseEmbedModelService createModel(Long embeddingModelId) {
-        ChatModelVo chatModelVo = iChatModelService.queryById(embeddingModelId);
-
-        return createModelInstance(chatModelVo.getProviderName(), chatModelVo);
+        return modelCache.computeIfAbsent(embeddingModelId, id -> {
+            ChatModelVo modelConfig = chatModelService.queryById(id);
+            if (modelConfig == null) {
+                throw new IllegalArgumentException("未找到模型配置，ID=" + id);
+            }
+            return createModelInstance(modelConfig.getProviderName(), modelConfig);
+        });
     }
 
-    private BaseEmbedModelService createModelInstance(String factory, ChatModelVo config) {
-        try {
-            BaseEmbedModelService model = applicationContext.getBean(factory, BaseEmbedModelService.class);
-            // TODO 缓存设置
-            model.configure(config);
-
-            return model;
-        } catch (NoSuchBeanDefinitionException e) {
-            throw new IllegalArgumentException("获取不到嵌入模型: " + factory, e);
-        }
+    /**
+     * 检查模型是否支持多模态
+     *
+     * @param embeddingModelId 嵌入模型的唯一标识ID
+     * @return boolean 如果模型支持多模态则返回true，否则返回false
+     */
+    public boolean isMultimodalModel(Long embeddingModelId) {
+        return createModel(embeddingModelId) instanceof MultiModalEmbedModelService;
     }
 
-    // 检查模型是否支持多模态
-    public boolean isMultimodalModel(Long tenantId) {
-        BaseEmbedModelService model = createModel(tenantId);
-        return model instanceof MultiModalEmbedModelService;
-    }
-
-    // 获取多模态模型（如果支持）
+    /**
+     * 创建多模态嵌入模型实例
+     *
+     * @param tenantId 租户ID
+     * @return MultiModalEmbedModelService 多模态嵌入模型服务实例
+     * @throws IllegalArgumentException 当模型不支持多模态时抛出
+     */
     public MultiModalEmbedModelService createMultimodalModel(Long tenantId) {
         BaseEmbedModelService model = createModel(tenantId);
         if (model instanceof MultiModalEmbedModelService) {
@@ -58,13 +71,47 @@ public class EmbeddingModelFactory {
         throw new IllegalArgumentException("该模型不支持多模态");
     }
 
-    public void refreshModel(String tenantId, String factory) {
-        String cacheKey = tenantId + ":" + factory;
-        modelCache.remove(cacheKey);
+    /**
+     * 刷新模型缓存
+     * 根据给定的嵌入模型ID从缓存中移除对应的模型
+     *
+     * @param embeddingModelId 嵌入模型的唯一标识ID
+     */
+    public void refreshModel(Long embeddingModelId) {
+    // 从模型缓存中移除指定ID的模型
+        modelCache.remove(embeddingModelId);
     }
 
+    /**
+     * 获取所有支持模型工厂的列表
+     *
+     * @return List<String> 支持的模型工厂名称列表
+     */
     public List<String> getSupportedFactories() {
         return new ArrayList<>(applicationContext.getBeansOfType(BaseEmbedModelService.class)
                 .keySet());
     }
+
+    /**
+     * 创建具体的模型实例
+     * 根据提供的工厂名称和配置信息创建并配置模型实例
+     *
+     * @param factory 工厂名称，用于标识模型类型
+     * @param config 模型配置信息
+     * @return BaseEmbedModelService 配置好的模型实例
+     * @throws IllegalArgumentException 当无法获取指定的模型实例时抛出
+     */
+    private BaseEmbedModelService createModelInstance(String factory, ChatModelVo config) {
+        try {
+            // 从Spring上下文中获取模型实例
+            BaseEmbedModelService model = applicationContext.getBean(factory, BaseEmbedModelService.class);
+            // 配置模型参数
+            model.configure(config);
+            log.info("成功创建嵌入模型: factory={}, modelId={}", config.getProviderName(), config.getId());
+
+            return model;
+        } catch (NoSuchBeanDefinitionException e) {
+            throw new IllegalArgumentException("获取不到嵌入模型: " + factory, e);
+        }
+    }
 }