content: /*
   * 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.bookkeeper.stream.storage.impl.grpc;
  
  import io.grpc.stub.StreamObserver;
  import lombok.extern.slf4j.Slf4j;
  import org.apache.bookkeeper.stream.proto.storage.GetActiveRangesRequest;
  import org.apache.bookkeeper.stream.proto.storage.GetActiveRangesResponse;
  import org.apache.bookkeeper.stream.proto.storage.MetaRangeServiceGrpc.MetaRangeServiceImplBase;
  import org.apache.bookkeeper.stream.proto.storage.StatusCode;
  import org.apache.bookkeeper.stream.storage.api.metadata.RangeStoreService;
  import org.apache.bookkeeper.stream.storage.impl.grpc.handler.ResponseHandler;
  
  /**
   * The gRPC protocol based range service.
   */
  @Slf4j
  public class GrpcMetaRangeService extends MetaRangeServiceImplBase {
  
      private final RangeStoreService rangeStore;
  
      public GrpcMetaRangeService(RangeStoreService service) {
          this.rangeStore = service;
          log.info("Created MetaRange service");
      }
  
      //
      // Meta KeyRange Server Requests
      //
  
      @Override
      public void getActiveRanges(GetActiveRangesRequest request,
                                  StreamObserver<GetActiveRangesResponse> responseObserver) {
          rangeStore.getActiveRanges(request).whenComplete(
              new ResponseHandler<GetActiveRangesResponse>(responseObserver) {
                  @Override
                  protected GetActiveRangesResponse createErrorResp(Throwable cause) {
                      return GetActiveRangesResponse.newBuilder()
                          .setCode(StatusCode.INTERNAL_SERVER_ERROR)
                          .build();
                  }
              });
      }
  
  }
  