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.common.resolver;
  
  import com.google.common.collect.Lists;
  import io.grpc.Attributes;
  import io.grpc.EquivalentAddressGroup;
  import java.net.InetSocketAddress;
  import java.net.URI;
  import java.util.Collections;
  import java.util.List;
  import java.util.concurrent.ExecutorService;
  import java.util.stream.Collectors;
  import org.apache.bookkeeper.common.util.SharedResourceManager.Resource;
  
  /**
   * A simple name resolver that returns pre-configured host addresses.
   */
  public class StaticNameResolver extends AbstractNameResolver {
  
      private final List<EquivalentAddressGroup> servers;
  
      public StaticNameResolver(String name,
                                Resource<ExecutorService> executorResource,
                                List<URI> endpoints) {
          super(name, executorResource);
          this.servers = Collections.unmodifiableList(
              endpoints.stream()
                  .map(endpoint -> new EquivalentAddressGroup(
                      Lists.newArrayList(new InetSocketAddress(endpoint.getHost(), endpoint.getPort())),
                      Attributes.EMPTY))
                  .collect(Collectors.toList()));
      }
  
      @Override
      public List<EquivalentAddressGroup> getServers() {
          return servers;
      }
  }
  