/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.net.ssl;
  
  import java.io.IOException;
  import java.net.InetAddress;
  import java.net.ServerSocket;
  
  import javax.net.ServerSocketFactory;
  import javax.net.ssl.SSLServerSocket;
  import javax.net.ssl.SSLServerSocketFactory;
  
  /**
   * An {@link SSLServerSocketFactory} that configures SSL parameters (those
   * specified in {@link SSLParametersConfiguration}) on each newly created socket.
   * <p>
   * When any of this factory's {@code createServerSocket} methods are invoked, it
   * calls on a delegate {@link SSLServerSocketFactory} to create the socket, and
   * then sets the SSL parameters of the socket (using the provided configuration)
   * before returning the socket to the caller.
   *
   * @author Carl Harris
   */
  public class ConfigurableSSLServerSocketFactory extends ServerSocketFactory {
  
      private final SSLParametersConfiguration parameters;
      private final SSLServerSocketFactory delegate;
  
      /**
       * Creates a new factory.
       * 
       * @param parameters parameters that will be configured on each socket created
       *                   by the factory
       * @param delegate   socket factory that will be called upon to create server
       *                   sockets before configuration
       */
      public ConfigurableSSLServerSocketFactory(SSLParametersConfiguration parameters, SSLServerSocketFactory delegate) {
          this.parameters = parameters;
          this.delegate = delegate;
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public ServerSocket createServerSocket(int port, int backlog, InetAddress ifAddress) throws IOException {
          SSLServerSocket socket = (SSLServerSocket) delegate.createServerSocket(port, backlog, ifAddress);
          parameters.configure(new SSLConfigurableServerSocket(socket));
          return socket;
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public ServerSocket createServerSocket(int port, int backlog) throws IOException {
          SSLServerSocket socket = (SSLServerSocket) delegate.createServerSocket(port, backlog);
          parameters.configure(new SSLConfigurableServerSocket(socket));
          return socket;
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public ServerSocket createServerSocket(int port) throws IOException {
          SSLServerSocket socket = (SSLServerSocket) delegate.createServerSocket(port);
          parameters.configure(new SSLConfigurableServerSocket(socket));
          return socket;
      }
  
  }