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.distributed.impl;
  
  import java.io.IOException;
  import java.net.InetAddress;
  import java.net.ServerSocket;
  import java.net.SocketException;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Objects;
  
  import javax.net.ServerSocketFactory;
  
  import org.apache.cassandra.utils.RMICloseableServerSocketFactory;
  
  
  /**
   * This class is used to keep track of RMI servers created during a cluster creation so we can
   * later close the sockets, which would otherwise be left with a thread running waiting for
   * connections that would never show up as the server was otherwise closed.
   */
  class CollectingRMIServerSocketFactoryImpl implements RMICloseableServerSocketFactory
  {
      private final InetAddress bindAddress;
      List<ServerSocket> sockets = new ArrayList<>();
  
      public CollectingRMIServerSocketFactoryImpl(InetAddress bindAddress)
      {
          this.bindAddress = bindAddress;
      }
  
      @Override
      public ServerSocket createServerSocket(int pPort) throws IOException
      {
          ServerSocket result = ServerSocketFactory.getDefault().createServerSocket(pPort, 0, bindAddress);
          try
          {
              result.setReuseAddress(true);
          }
          catch (SocketException e)
          {
              result.close();
              throw e;
          }
          sockets.add(result);
          return result;
      }
  
      @Override
      public void close() throws IOException
      {
          for (ServerSocket socket : sockets)
          {
              socket.close();
          }
      }
  
      @Override
      public boolean equals(Object o)
      {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          CollectingRMIServerSocketFactoryImpl that = (CollectingRMIServerSocketFactoryImpl) o;
          return Objects.equals(bindAddress, that.bindAddress);
      }
  
      @Override
      public int hashCode()
      {
          return Objects.hash(bindAddress);
      }
  }
  