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.utils;
  
  import java.io.IOException;
  import java.io.Serializable;
  import java.net.InetAddress;
  import java.net.Socket;
  import java.rmi.server.RMIClientSocketFactory;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Objects;
  
  /**
   * This class is copied from the Cassandra repository. It is required because the Cassandra dtest tells the JMX client
   * to use this class when setting the {@code jmx.remote.rmi.client.socket.factory} property in
   * {@code org.apache.cassandra.distributed.impl.IsolatedJmx#startJmx()}. Ideally, we need to classload ONLY this class
   * into the application classloader from the dtest-jar.
   *
   * <p>This class is used to override the local address the JMX client calculates when trying to connect,
   * which can otherwise be influenced by the system property "java.rmi.server.hostname" in strange and
   * unpredictable ways.
   */
  // TODO: We need to figure out how to load this class from the dtest jar file into the application classloader
  public class RMIClientSocketFactoryImpl implements RMIClientSocketFactory, Serializable
  {
      List<Socket> sockets = new ArrayList<>();
      private final InetAddress localAddress;
  
      public RMIClientSocketFactoryImpl(InetAddress localAddress)
      {
          this.localAddress = localAddress;
      }
  
      @Override
      public Socket createSocket(String host, int port) throws IOException
      {
          Socket socket = new Socket(localAddress, port);
          sockets.add(socket);
          return socket;
      }
  
      public void close() throws IOException
      {
          for (Socket socket : sockets)
          {
              try
              {
                  socket.close();
              }
              catch (IOException ignored)
              {
                  // intentionally ignored
              }
          }
      }
  
      @Override
      public boolean equals(Object o)
      {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          RMIClientSocketFactoryImpl that = (RMIClientSocketFactoryImpl) o;
          return Objects.equals(localAddress, that.localAddress);
      }
  
      @Override
      public int hashCode()
      {
          return Objects.hash(localAddress);
      }
  }
  