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.receiver.meter.provider;
  
  import org.apache.skywalking.oap.server.analyzer.module.AnalyzerModule;
  import org.apache.skywalking.oap.server.analyzer.provider.meter.process.IMeterProcessService;
  import org.apache.skywalking.oap.server.core.CoreModule;
  import org.apache.skywalking.oap.server.core.server.GRPCHandlerRegister;
  import org.apache.skywalking.oap.server.library.module.ModuleDefine;
  import org.apache.skywalking.oap.server.library.module.ModuleProvider;
  import org.apache.skywalking.oap.server.library.module.ServiceNotProvidedException;
  import org.apache.skywalking.oap.server.receiver.meter.module.MeterReceiverModule;
  import org.apache.skywalking.oap.server.receiver.meter.provider.handler.MeterServiceHandler;
  import org.apache.skywalking.oap.server.receiver.meter.provider.handler.MeterServiceHandlerCompat;
  import org.apache.skywalking.oap.server.receiver.sharing.server.SharingServerModule;
  import org.apache.skywalking.oap.server.telemetry.TelemetryModule;
  
  public class MeterReceiverProvider extends ModuleProvider {
  
      private IMeterProcessService processService;
  
      @Override
      public String name() {
          return "default";
      }
  
      @Override
      public Class<? extends ModuleDefine> module() {
          return MeterReceiverModule.class;
      }
  
      @Override
      public ConfigCreator newConfigCreator() {
          return null;
      }
  
      @Override
      public void prepare() throws ServiceNotProvidedException {
      }
  
      @Override
      public void start() throws ServiceNotProvidedException {
          processService = getManager().find(AnalyzerModule.NAME)
                                       .provider()
                                       .getService(IMeterProcessService.class);
          GRPCHandlerRegister grpcHandlerRegister = getManager().find(SharingServerModule.NAME)
                                                                .provider()
                                                                .getService(GRPCHandlerRegister.class);
          MeterServiceHandler meterServiceHandlerCompat = new MeterServiceHandler(getManager(), processService);
          grpcHandlerRegister.addHandler(meterServiceHandlerCompat);
          grpcHandlerRegister.addHandler(new MeterServiceHandlerCompat(meterServiceHandlerCompat));
      }
  
      @Override
      public void notifyAfterCompleted() throws ServiceNotProvidedException {
      }
  
      @Override
      public String[] requiredModules() {
          return new String[] {
              TelemetryModule.NAME,
              CoreModule.NAME,
              AnalyzerModule.NAME,
              SharingServerModule.NAME
          };
      }
  }
  