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.cassandra.locator;
  
  import org.apache.cassandra.utils.Sortable;
  
  import java.util.Comparator;
  
  public class NoOpProximity extends BaseProximity
  {
      @Override
      public <C extends ReplicaCollection<? extends C>> C sortedByProximity(final InetAddressAndPort address, C unsortedAddress)
      {
          // Optimization to avoid walking the list
          return unsortedAddress;
      }
  
      @Override
      public int compareEndpoints(InetAddressAndPort target, Replica r1, Replica r2)
      {
          // Making all endpoints equal ensures we won't change the original ordering (since
          // Collections.sort is guaranteed to be stable)
          return 0;
      }
  
      @Override
      public boolean supportCompareByEndpoint()
      {
          return true;
      }
  
      @Override
      public <C extends Sortable<? extends Endpoint, ? extends C>> Comparator<Endpoint> endpointComparator(InetAddressAndPort address, C addresses)
      {
          return this::compareByEndpoint;
      }
  
      private int compareByEndpoint(Endpoint a, Endpoint b)
      {
          // Making all endpoints equal ensures we won't change the original ordering (since
          // Collections.sort is guaranteed to be stable)
          return 0;
      }
  }
  