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 io.etcd.jetcd.impl;
  
  import io.etcd.jetcd.Client;
  import io.etcd.jetcd.api.WatchGrpc;
  import lombok.extern.slf4j.Slf4j;
  
  /**
   * Keep a reference to etcd internal connection manager.
   */
  @Slf4j
  public class EtcdConnectionManager {
  
      private final ClientImpl client;
      private ClientConnectionManager connMgr;
  
      public EtcdConnectionManager(Client client) {
          this((ClientImpl) client);
      }
  
      EtcdConnectionManager(ClientImpl client) {
          this.client = client;
          try {
              this.connMgr = EtcdClientUtils.getField(
                  client, "connectionManager"
              );
          } catch (NoSuchFieldException e) {
              log.error("No `connectionManager` field found in etcd client", e);
              throw new RuntimeException(
                  "No `connectionManager` field found in etcd client", e);
          } catch (IllegalAccessException e) {
              log.error("Illegal access to `connectionManager` field in etcd client", e);
              throw new RuntimeException(
                  "Illegal access to `connectionManager` field in etcd client", e);
          }
      }
  
      /**
       * Create a watch api grpc stub.
       *
       * @return a watch api grpc stub.
       */
      public WatchGrpc.WatchStub newWatchStub() {
          return connMgr.newStub(WatchGrpc::newStub);
      }
  
  }
  