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.service.accord;
  
  import java.net.InetAddress;
  import java.net.UnknownHostException;
  import java.nio.ByteBuffer;
  
  import accord.local.Node;
  import org.apache.cassandra.locator.InetAddressAndPort;
  import org.apache.cassandra.utils.ByteBufferUtil;
  
  public enum SimpleAccordEndpointMapper implements AccordEndpointMapper
  {
      INSTANCE;
  
      @Override
      public Node.Id mappedIdOrNull(InetAddressAndPort endpoint)
      {
          if (endpoint.addressBytes.length != 4)
              throw new IllegalArgumentException("Only IPV4 is allowed: given " + endpoint.toString(true));
          return new Node.Id(ByteBuffer.wrap(endpoint.addressBytes).getInt());
      }
  
      @Override
      public InetAddressAndPort mappedEndpointOrNull(Node.Id id)
      {
          byte[] array = ByteBufferUtil.bytes(id.id).array();
          try
          {
              return InetAddressAndPort.getByAddressOverrideDefaults(InetAddress.getByAddress(array), 1);
          }
          catch (UnknownHostException e)
          {
              throw new AssertionError("Unable to convert " + id + " to an IPV4 address", e);
          }
      }
  }
  