Alanxtl commented on code in PR #702: URL: https://github.com/apache/dubbo-go-pixiu/pull/702#discussion_r2254287437
########## pkg/filter/mcp/mcpserver/handlers.go: ########## @@ -0,0 +1,560 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package mcpserver + +import ( + "encoding/json" + "fmt" + "io" + "net/http" + "strings" +) + +import ( + "github.com/mark3labs/mcp-go/mcp" +) + +import ( + "github.com/apache/dubbo-go-pixiu/pkg/client" + "github.com/apache/dubbo-go-pixiu/pkg/common/constant" + "github.com/apache/dubbo-go-pixiu/pkg/common/extension/filter" + "github.com/apache/dubbo-go-pixiu/pkg/logger" + "github.com/apache/dubbo-go-pixiu/pkg/model" +) + +// handleInitialize handles the initialize method +func (f *MCPServerFilter) handleInitialize(ctx *MCPContext, req mcp.JSONRPCRequest) filter.FilterStatus { + // Build server capabilities using mcp-go structures + capabilities := mcp.ServerCapabilities{ + Tools: &struct { + ListChanged bool `json:"listChanged,omitempty"` + }{ + // TODO: Dynamic update capabilities - enable after Nacos integration + // Currently set to false, future Nacos integration will support: + // 1. Dynamic discovery and registration of new backend services + // 2. Automatic generation of corresponding MCP tools + // 3. Send notifications/tools/list_changed notifications + ListChanged: false, + }, + Resources: &struct { + Subscribe bool `json:"subscribe,omitempty"` + ListChanged bool `json:"listChanged,omitempty"` + }{ + Subscribe: false, + ListChanged: false, + }, + Prompts: &struct { + ListChanged bool `json:"listChanged,omitempty"` + }{ + ListChanged: false, + }, + } + + // Build server info using mcp-go structures + serverInfo := mcp.Implementation{ + Name: f.cfg.ServerInfo.Name, + Version: f.cfg.ServerInfo.Version, + } + + // Create initialization result using mcp-go API + instructions := f.cfg.ServerInfo.Instructions + if instructions == "" { + instructions = "This MCP server provides API access through tools, documentation through resources, and AI assistance through prompts." + } + result := mcp.NewInitializeResult(mcp.LATEST_PROTOCOL_VERSION, capabilities, serverInfo, instructions) + + // Create JSON-RPC response + response := f.responseBuilder.Success(req.ID, result) + return f.sendJSONResponse(ctx, response) +} + +// handleToolsList handles the tools/list method using mcp-go APIs +func (f *MCPServerFilter) handleToolsList(ctx *MCPContext, req mcp.JSONRPCRequest) filter.FilterStatus { + tools := make([]mcp.Tool, 0, len(f.cfg.Tools)) + + // Build tools using mcp-go API for standard compliance + for _, toolCfg := range f.cfg.Tools { + // Start with basic tool options + toolOptions := []mcp.ToolOption{ + mcp.WithDescription(toolCfg.Description), + } + + // Add parameter definitions using mcp-go APIs + for _, arg := range toolCfg.Args { + switch arg.Type { + case "string": Review Comment: do not hard code -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
