code: /*
   * 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 org.apache.skywalking.oap.server.cluster.plugin.standalone;
  
  import org.apache.skywalking.oap.server.core.cluster.ClusterCoordinator;
  import org.apache.skywalking.oap.server.core.cluster.ClusterModule;
  import org.apache.skywalking.oap.server.core.cluster.ClusterNodesQuery;
  import org.apache.skywalking.oap.server.core.cluster.ClusterRegister;
  import org.apache.skywalking.oap.server.library.module.ModuleProvider;
  import org.apache.skywalking.oap.server.library.module.ModuleStartException;
  import org.apache.skywalking.oap.server.library.module.ServiceNotProvidedException;
  
  public class ClusterModuleStandaloneProvider extends ModuleProvider {
      private StandaloneManager standaloneManager;
  
      public ClusterModuleStandaloneProvider() {
          super();
      }
  
      @Override
      public String name() {
          return "standalone";
      }
  
      @Override
      public Class module() {
          return ClusterModule.class;
      }
  
      @Override
      public ConfigCreator newConfigCreator() {
          return null;
      }
  
      @Override
      public void prepare() throws ServiceNotProvidedException {
          standaloneManager = new StandaloneManager();
          this.registerServiceImplementation(ClusterRegister.class, standaloneManager);
          this.registerServiceImplementation(ClusterNodesQuery.class, standaloneManager);
          this.registerServiceImplementation(ClusterCoordinator.class, standaloneManager);
      }
  
      @Override
      public void start() throws ModuleStartException {
      }
  
      @Override
      public void notifyAfterCompleted() {
          standaloneManager.notifyWatchers();
      }
  
      @Override
      public String[] requiredModules() {
          return new String[0];
      }
  }
  