| /* |
| * 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.commons.net; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.Proxy; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| import java.net.UnknownHostException; |
| |
| import javax.net.SocketFactory; |
| |
| /*** |
| * DefaultSocketFactory implements the SocketFactory interface by |
| * simply wrapping the java.net.Socket and java.net.ServerSocket |
| * constructors. It is the default SocketFactory used by |
| * {@link org.apache.commons.net.SocketClient} |
| * implementations. |
| * |
| * |
| * @see SocketFactory |
| * @see SocketClient |
| * @see SocketClient#setSocketFactory |
| ***/ |
| |
| public class DefaultSocketFactory extends SocketFactory |
| { |
| /** The proxy to use when creating new sockets. */ |
| private final Proxy connProxy; |
| |
| /** |
| * The default constructor. |
| */ |
| public DefaultSocketFactory() |
| { |
| this(null); |
| } |
| |
| /** |
| * A constructor for sockets with proxy support. |
| * |
| * @param proxy The Proxy to use when creating new Sockets. |
| * @since 3.2 |
| */ |
| public DefaultSocketFactory(Proxy proxy) |
| { |
| connProxy = proxy; |
| } |
| |
| /** |
| * Creates an unconnected Socket. |
| * |
| * @return A new unconnected Socket. |
| * @throws IOException If an I/O error occurs while creating the Socket. |
| * @since 3.2 |
| */ |
| @Override |
| public Socket createSocket() throws IOException |
| { |
| if (connProxy != null) |
| { |
| return new Socket(connProxy); |
| } |
| return new Socket(); |
| } |
| |
| /*** |
| * Creates a Socket connected to the given host and port. |
| * |
| * @param host The hostname to connect to. |
| * @param port The port to connect to. |
| * @return A Socket connected to the given host and port. |
| * @throws UnknownHostException If the hostname cannot be resolved. |
| * @throws IOException If an I/O error occurs while creating the Socket. |
| ***/ |
| @Override |
| public Socket createSocket(String host, int port) |
| throws UnknownHostException, IOException |
| { |
| if (connProxy != null) |
| { |
| Socket s = new Socket(connProxy); |
| s.connect(new InetSocketAddress(host, port)); |
| return s; |
| } |
| return new Socket(host, port); |
| } |
| |
| /*** |
| * Creates a Socket connected to the given host and port. |
| * |
| * @param address The address of the host to connect to. |
| * @param port The port to connect to. |
| * @return A Socket connected to the given host and port. |
| * @throws IOException If an I/O error occurs while creating the Socket. |
| ***/ |
| @Override |
| public Socket createSocket(InetAddress address, int port) |
| throws IOException |
| { |
| if (connProxy != null) |
| { |
| Socket s = new Socket(connProxy); |
| s.connect(new InetSocketAddress(address, port)); |
| return s; |
| } |
| return new Socket(address, port); |
| } |
| |
| /*** |
| * Creates a Socket connected to the given host and port and |
| * originating from the specified local address and port. |
| * |
| * @param host The hostname to connect to. |
| * @param port The port to connect to. |
| * @param localAddr The local address to use. |
| * @param localPort The local port to use. |
| * @return A Socket connected to the given host and port. |
| * @throws UnknownHostException If the hostname cannot be resolved. |
| * @throws IOException If an I/O error occurs while creating the Socket. |
| ***/ |
| @Override |
| public Socket createSocket(String host, int port, |
| InetAddress localAddr, int localPort) |
| throws UnknownHostException, IOException |
| { |
| if (connProxy != null) |
| { |
| Socket s = new Socket(connProxy); |
| s.bind(new InetSocketAddress(localAddr, localPort)); |
| s.connect(new InetSocketAddress(host, port)); |
| return s; |
| } |
| return new Socket(host, port, localAddr, localPort); |
| } |
| |
| /*** |
| * Creates a Socket connected to the given host and port and |
| * originating from the specified local address and port. |
| * |
| * @param address The address of the host to connect to. |
| * @param port The port to connect to. |
| * @param localAddr The local address to use. |
| * @param localPort The local port to use. |
| * @return A Socket connected to the given host and port. |
| * @throws IOException If an I/O error occurs while creating the Socket. |
| ***/ |
| @Override |
| public Socket createSocket(InetAddress address, int port, |
| InetAddress localAddr, int localPort) |
| throws IOException |
| { |
| if (connProxy != null) |
| { |
| Socket s = new Socket(connProxy); |
| s.bind(new InetSocketAddress(localAddr, localPort)); |
| s.connect(new InetSocketAddress(address, port)); |
| return s; |
| } |
| return new Socket(address, port, localAddr, localPort); |
| } |
| |
| /*** |
| * Creates a ServerSocket bound to a specified port. A port |
| * of 0 will create the ServerSocket on a system-determined free port. |
| * |
| * @param port The port on which to listen, or 0 to use any free port. |
| * @return A ServerSocket that will listen on a specified port. |
| * @throws IOException If an I/O error occurs while creating |
| * the ServerSocket. |
| ***/ |
| public ServerSocket createServerSocket(int port) throws IOException |
| { |
| return new ServerSocket(port); |
| } |
| |
| /*** |
| * Creates a ServerSocket bound to a specified port with a given |
| * maximum queue length for incoming connections. A port of 0 will |
| * create the ServerSocket on a system-determined free port. |
| * |
| * @param port The port on which to listen, or 0 to use any free port. |
| * @param backlog The maximum length of the queue for incoming connections. |
| * @return A ServerSocket that will listen on a specified port. |
| * @throws IOException If an I/O error occurs while creating |
| * the ServerSocket. |
| ***/ |
| public ServerSocket createServerSocket(int port, int backlog) |
| throws IOException |
| { |
| return new ServerSocket(port, backlog); |
| } |
| |
| /*** |
| * Creates a ServerSocket bound to a specified port on a given local |
| * address with a given maximum queue length for incoming connections. |
| * A port of 0 will |
| * create the ServerSocket on a system-determined free port. |
| * |
| * @param port The port on which to listen, or 0 to use any free port. |
| * @param backlog The maximum length of the queue for incoming connections. |
| * @param bindAddr The local address to which the ServerSocket should bind. |
| * @return A ServerSocket that will listen on a specified port. |
| * @throws IOException If an I/O error occurs while creating |
| * the ServerSocket. |
| ***/ |
| public ServerSocket createServerSocket(int port, int backlog, |
| InetAddress bindAddr) |
| throws IOException |
| { |
| return new ServerSocket(port, backlog, bindAddr); |
| } |
| } |