content: /*
   * Copyright 1999-2023 Alibaba Group Holding Ltd.
   *
   * 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.alibaba.nacos.bootstrap;
  
  import com.alibaba.nacos.mcpregistry.NacosMcpRegistry;
  import com.alibaba.nacos.NacosServerBasicApplication;
  import com.alibaba.nacos.NacosServerWebApplication;
  import com.alibaba.nacos.console.NacosConsole;
  import com.alibaba.nacos.core.listener.startup.NacosStartUp;
  import com.alibaba.nacos.core.listener.startup.NacosStartUpManager;
  import com.alibaba.nacos.sys.env.Constants;
  import com.alibaba.nacos.sys.env.DeploymentType;
  import com.alibaba.nacos.sys.env.EnvUtil;
  import org.springframework.boot.Banner;
  import org.springframework.boot.ResourceBanner;
  import org.springframework.boot.WebApplicationType;
  import org.springframework.boot.autoconfigure.SpringBootApplication;
  import org.springframework.boot.builder.SpringApplicationBuilder;
  import org.springframework.context.ConfigurableApplicationContext;
  import org.springframework.core.io.ClassPathResource;
  import org.springframework.jmx.export.MBeanExporter;
  import org.springframework.jmx.support.RegistrationPolicy;
  
  /**
   * Nacos bootstrap class.
   *
   * @author xiweng.yy
   */
  @SpringBootApplication
  public class NacosBootstrap {
      
      private static final String SPRING_JMX_ENABLED = "spring.jmx.enabled";
      
      public static void main(String[] args) {
          String type = System.getProperty(Constants.NACOS_DEPLOYMENT_TYPE, Constants.NACOS_DEPLOYMENT_TYPE_MERGED);
          DeploymentType deploymentType = DeploymentType.getType(type);
          EnvUtil.setDeploymentType(deploymentType);
          switch (deploymentType) {
              case MERGED:
                  startWithConsole(args);
                  break;
              case SERVER:
                  startWithoutConsole(args);
                  break;
              case CONSOLE:
                  startOnlyConsole(args);
                  break;
              default:
                  throw new IllegalArgumentException("Unsupported nacos deployment type " + type);
          }
      }
      
      private static void prepareCoreContext(ConfigurableApplicationContext coreContext) {
          if (coreContext.getEnvironment().getProperty(SPRING_JMX_ENABLED, Boolean.class, false)) {
              // Avoid duplicate registration MBean to exporter.
              coreContext.getBean(MBeanExporter.class).setRegistrationPolicy(RegistrationPolicy.IGNORE_EXISTING);
          }
      }
      
      private static void startWithoutConsole(String[] args) {
          ConfigurableApplicationContext coreContext = startCoreContext(args);
          prepareCoreContext(coreContext);
          ConfigurableApplicationContext webContext = startServerWebContext(args, coreContext);
          if (isEnabledMcpRegistryApi(coreContext)) {
              ConfigurableApplicationContext mcpRegistryContext = startMcpRegistryContext(args, coreContext);
          }
      }
      
      private static void startWithConsole(String[] args) {
          ConfigurableApplicationContext coreContext = startCoreContext(args);
          prepareCoreContext(coreContext);
          ConfigurableApplicationContext serverWebContext = startServerWebContext(args, coreContext);
          ConfigurableApplicationContext consoleContext = startConsoleContext(args, coreContext);
          if (isEnabledMcpRegistryApi(coreContext)) {
              ConfigurableApplicationContext mcpRegistryContext = startMcpRegistryContext(args, coreContext);
          }
      }
      
      private static ConfigurableApplicationContext startCoreContext(String[] args) {
          NacosStartUpManager.start(NacosStartUp.CORE_START_UP_PHASE);
          return new SpringApplicationBuilder(NacosServerBasicApplication.class).web(WebApplicationType.NONE)
                  .banner(getBanner("core-banner.txt")).run(args);
      }
      
      private static ConfigurableApplicationContext startServerWebContext(String[] args,
              ConfigurableApplicationContext coreContext) {
          NacosStartUpManager.start(NacosStartUp.WEB_START_UP_PHASE);
          return new SpringApplicationBuilder(NacosServerWebApplication.class).parent(coreContext)
                  .banner(getBanner("nacos-server-web-banner.txt")).run(args);
      }
      
      private static ConfigurableApplicationContext startConsoleContext(String[] args,
              ConfigurableApplicationContext coreContext) {
          NacosStartUpManager.start(NacosStartUp.CONSOLE_START_UP_PHASE);
          return new SpringApplicationBuilder(NacosConsole.class).parent(coreContext)
                  .banner(getBanner("nacos-console-banner.txt")).run(args);
      }
      
      private static ConfigurableApplicationContext startMcpRegistryContext(String[] args,
                                                                            ConfigurableApplicationContext coreContext) {
          NacosStartUpManager.start(NacosStartUp.MCP_REGISTRY_START_UP_PHASE);
          return new SpringApplicationBuilder(NacosMcpRegistry.class).parent(coreContext)
                  .banner(getBanner("nacos-mcp-registry-banner.txt")).run(args);
      }
      
      private static void startOnlyConsole(String[] args) {
          NacosStartUpManager.start(NacosStartUp.CONSOLE_START_UP_PHASE);
          ConfigurableApplicationContext consoleContext = new SpringApplicationBuilder(NacosConsole.class).banner(
                  getBanner("nacos-console-banner.txt")).run(args);
      }
      
      private static Banner getBanner(String bannerFileName) {
          return new ResourceBanner(new ClassPathResource(bannerFileName));
      }
      
      private static boolean isEnabledMcpRegistryApi(ConfigurableApplicationContext coreContext) {
          return coreContext.getEnvironment().getProperty("nacos.ai.mcp.registry.enabled", Boolean.class, false);
      }
  }
  