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.config.DatabaseDescriptor;
  
  public interface NodeAddressConfig
  {
      void configureAddresses();
      boolean preferLocalConnections();
  
      NodeAddressConfig DEFAULT = new NodeAddressConfig()
      {
          @Override
          public void configureAddresses()
          {
              // Default is to use whatever addresses are specified in node config already, so this is a no-op
          }
  
          @Override
          public boolean preferLocalConnections()
          {
              // Previously the equivalent config was hard coded for Ec2MultiRegionSnitch and read from
              // cassandra-rackdc.properties in the case of GossipingPropertyFileSnitch. In legacy config
              // mode, where one of those IEndpointSnitch impls is still specified the original behaviour
              // is preserved. For modern config the option can be specified in the main yaml, distinct
              // from the NodeProximity and InitialLocationProvider options.
              return DatabaseDescriptor.preferLocalConnections();
          }
      };
  }
  