Blizzard
d623b8590e
混合检索从 2 路(向量+全文)升级为 3 路(+图谱)。入库时 LLM 抽实体/关系建 Neo4j 图，检索时图谱路(实体关联三元组)融进 RRF；UI 可视化图谱。 - mcp-go rag: chat.go(OpenAI 兼容非流式 chat 客户端,抽取用) + graph.go(neo4j-go-driver 连接 + LLM 抽三元组 + MERGE 实体/关系 + 图谱召回/全量三元组) + rag.go(Config 结构; graph+chat 路;Ingest 加 抽实体/写Neo4j 阶段;Search 三路 RRF 融合;SetChat 热更新) - mcp-go: Neo4j env(默认 neo4j://localhost:7687, neo4j/sundynix);订阅 chat 控制面配置 (复用 DeepSeek 做抽取);新工具 kb_graph(返回三元组) - gateway: GET /api/v1/kb/graph;frontend KbView 知识图谱面板(实体—关系→实体) - 验证: 全模块 build✓ + e2e PASS; live——入库'sundynix用Milvus...'→DeepSeek 抽 4 三元组 →Neo4j(8 实体);检索三路融合 向量=4 全文=2 图谱=1;浏览器图谱面板渲染 4 三元组 - 边界: 实体链接用 CONTAINS 朴素匹配(可升级 LLM 查询实体抽取);全文/图谱重启随入库重建 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
104 lines
3.6 KiB
Go
104 lines
3.6 KiB
Go
// Command server 启动 sundynix-mcp-go —— 第 5 层 Go I/O 型 MCP 工具微服务。
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package main
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import (
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"context"
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"log"
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"os"
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"os/signal"
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"syscall"
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"time"
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sharedbus "github.com/sundynix/sundynix-shared/bus"
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"github.com/sundynix/sundynix-shared/contract"
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"github.com/sundynix/sundynix-mcp-go/internal/history"
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"github.com/sundynix/sundynix-mcp-go/internal/mcp"
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"github.com/sundynix/sundynix-mcp-go/internal/memory"
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"github.com/sundynix/sundynix-mcp-go/internal/rag"
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"github.com/sundynix/sundynix-mcp-go/internal/search"
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)
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func main() {
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natsURL := envOr("NATS_URL", "nats://localhost:4222")
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pgDSN := envOr("POSTGRES_DSN", "postgres://sundynix:sundynix@localhost:5432/sundynix?sslmode=disable")
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redisAddr := envOr("REDIS_ADDR", "localhost:6379")
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milvusAddr := envOr("MILVUS_ADDR", "localhost:19530")
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embBase := envOr("EMBED_BASE_URL", "") // OpenAI 兼容 embeddings 端点（空=向量检索降级）
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embKey := envOr("EMBED_API_KEY", "")
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embModel := envOr("EMBED_MODEL", "")
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rerankBase := envOr("RERANK_BASE_URL", "") // DashScope 文本重排端点（空=不启用 rerank）
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rerankKey := envOr("RERANK_API_KEY", "")
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rerankModel := envOr("RERANK_MODEL", "")
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neo4jURI := envOr("NEO4J_URI", "neo4j://localhost:7687") // GraphRAG 图谱（连不上则降级）
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neo4jUser := envOr("NEO4J_USER", "neo4j")
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neo4jPass := envOr("NEO4J_PASS", "sundynix")
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b, err := sharedbus.Connect(natsURL)
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if err != nil {
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log.Fatalf("[mcp_go] nats connect: %v", err)
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}
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defer b.Close()
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log.Printf("[mcp_go] connected %s", natsURL)
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engine := search.NewHybrid() // LLM Wiki 混合检索：Bleve + Milvus + Neo4j
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mem := memory.Open(pgDSN) // 偏好记忆：sundynix_user_profile（连不上则降级）
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defer mem.Close()
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hist := history.Open(redisAddr) // 会话短期历史：Redis（连不上则降级）
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defer hist.Close()
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ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
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defer stop()
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// RAG 核心链：embedding + Milvus(向量) + Bleve(全文) + Neo4j(图谱) + 可选 rerank
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ragEngine := rag.Open(ctx, rag.Config{
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MilvusAddr: milvusAddr,
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EmbedBase: embBase, EmbedKey: embKey, EmbedModel: embModel,
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RerankBase: rerankBase, RerankKey: rerankKey, RerankModel: rerankModel,
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Neo4jURI: neo4jURI, Neo4jUser: neo4jUser, Neo4jPass: neo4jPass,
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})
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defer ragEngine.Close()
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// 配置控制面：取激活 embedding(向量) + chat(图谱抽取) 配置并订阅热更新。
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applyEmbed := func(cfg *contract.ModelConfig) {
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if cfg != nil {
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ragEngine.SetEmbedding(cfg.BaseURL, cfg.APIKey, cfg.Model)
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}
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}
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applyChat := func(cfg *contract.ModelConfig) {
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if cfg != nil {
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ragEngine.SetChat(cfg.BaseURL, cfg.APIKey, cfg.Model)
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}
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}
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cctx, ccancel := context.WithTimeout(ctx, 3*time.Second)
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if cfg, _ := b.RequestConfig(cctx, contract.ConfigKindEmbedding); cfg != nil {
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applyEmbed(cfg)
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} else {
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log.Println("[mcp_go] 未取到 embedding 控制面配置（用 env 或降级）")
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}
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if cfg, _ := b.RequestConfig(cctx, contract.ConfigKindChat); cfg != nil {
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applyChat(cfg)
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}
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ccancel()
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if _, err := b.SubscribeConfigUpdated(contract.ConfigKindChat, applyChat); err != nil {
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log.Printf("[mcp_go] subscribe chat config: %v", err)
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}
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if _, err := b.SubscribeConfigUpdated(contract.ConfigKindEmbedding, applyEmbed); err != nil {
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log.Printf("[mcp_go] subscribe embedding config: %v", err)
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}
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gw := mcp.NewGateway(b, engine, mem, hist, ragEngine)
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log.Println("[mcp_go] serving MCP over sundynix.tools.go.* (Ctrl-C to quit)")
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if err := gw.Serve(ctx); err != nil && err != context.Canceled {
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log.Fatalf("[mcp_go] exit: %v", err)
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}
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}
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func envOr(key, def string) string {
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if v := os.Getenv(key); v != "" {
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return v
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}
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return def
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}
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