NL Analytics MCP Server for Apache Druid

/* * Copyright (C) 2025 Christian Schmitt, Tim Frey * * Licensed 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 com.iunera.druidmcpserver.client; import com.fasterxml.jackson.databind.ObjectMapper; import io.modelcontextprotocol.client.transport.ServerParameters; import io.modelcontextprotocol.client.transport.StdioClientTransport; import io.modelcontextprotocol.json.jackson.JacksonMcpJsonMapper; import java.io.File; /** * With stdio transport, the Druid MCP server is automatically started by the client. * But you have to build the server jar first: * * <pre> * ./mvnw clean install -DskipTests * </pre> */ public class DruidClientStdio { public static void main(String[] args) { System.out.println(new File(".").getAbsolutePath()); var stdioParams = ServerParameters.builder("java") .args("-Dspring.ai.mcp.server.stdio=true", "-Dspring.main.web-application-type=none", "-Dlogging.pattern.console=", "-jar", "target/druid-mcp-server-1.2.1.jar") .build(); var transport = new StdioClientTransport(stdioParams, new JacksonMcpJsonMapper(new ObjectMapper())); new DruidSampleClient(transport).run(); } }