content: /*
   * Copyright (C) 2012 Facebook, Inc.
   *
   * Licensed 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.airlift.drift.client.address;
  
  import com.google.common.collect.ImmutableList;
  import com.google.common.net.HostAndPort;
  import io.airlift.drift.transport.client.Address;
  
  import java.util.List;
  import java.util.Optional;
  import java.util.Set;
  import java.util.concurrent.CopyOnWriteArrayList;
  
  public class MockAddressSelector
          implements AddressSelector<Address>
  {
      private final List<HostAndPort> markdownHosts = new CopyOnWriteArrayList<>();
      private Optional<HostAndPort> address = Optional.of(HostAndPort.fromParts("localhost", 9999));
  
      public List<HostAndPort> getMarkdownHosts()
      {
          return ImmutableList.copyOf(markdownHosts);
      }
  
      public void setAddress(Optional<HostAndPort> address)
      {
          this.address = address;
      }
  
      @Override
      public Optional<Address> selectAddress(Optional<String> addressSelectionContext, Set<Address> attempted)
      {
          return address.map(hostAndPort -> () -> hostAndPort);
      }
  
      @Override
      public void markdown(Address address)
      {
          markdownHosts.add(address.getHostAndPort());
      }
  }
  