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1 package org.apache.commons.net; 2 3 /* ==================================================================== 4 * The Apache Software License, Version 1.1 5 * 6 * Copyright (c) 2001 The Apache Software Foundation. All rights 7 * reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. The end-user documentation included with the redistribution, 22 * if any, must include the following acknowledgment: 23 * "This product includes software developed by the 24 * Apache Software Foundation (http://www.apache.org/)." 25 * Alternately, this acknowledgment may appear in the software itself, 26 * if and wherever such third-party acknowledgments normally appear. 27 * 28 * 4. The names "Apache" and "Apache Software Foundation" and 29 * "Apache Commons" must not be used to endorse or promote products 30 * derived from this software without prior written permission. For 31 * written permission, please contact apache@apache.org. 32 * 33 * 5. Products derived from this software may not be called "Apache", 34 * nor may "Apache" appear in their name, without 35 * prior written permission of the Apache Software Foundation. 36 * 37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * ==================================================================== 50 * 51 * This software consists of voluntary contributions made by many 52 * individuals on behalf of the Apache Software Foundation. For more 53 * information on the Apache Software Foundation, please see 54 * <http://www.apache.org/>;. 55 */ 56 57 import java.net.DatagramSocket; 58 import java.net.InetAddress; 59 import java.net.SocketException; 60 61 /**** 62 * The DatagramSocketFactory interface provides a means for the 63 * programmer to control the creation of datagram sockets and 64 * provide his own DatagramSocket implementations for use by all 65 * classes derived from 66 * <a href="org.apache.commons.net.DatagramSocketClient.html"> 67 * DatagramSocketClient </a>. 68 * This allows you to provide your own DatagramSocket implementations and 69 * to perform security checks or browser capability requests before 70 * creating a DatagramSocket. 71 * <p> 72 * <p> 73 * @author Daniel F. Savarese 74 ***/ 75 76 public interface DatagramSocketFactory 77 { 78 79 /**** 80 * Creates a DatagramSocket on the local host at the first available port. 81 * <p> 82 * @exception SocketException If the socket could not be created. 83 ***/ 84 public DatagramSocket createDatagramSocket() throws SocketException; 85 86 /**** 87 * Creates a DatagramSocket on the local host at a specified port. 88 * <p> 89 * @param port The port to use for the socket. 90 * @exception SocketException If the socket could not be created. 91 ***/ 92 public DatagramSocket createDatagramSocket(int port) throws SocketException; 93 94 /**** 95 * Creates a DatagramSocket at the specified address on the local host 96 * at a specified port. 97 * <p> 98 * @param port The port to use for the socket. 99 * @param laddr The local address to use. 100 * @exception SocketException If the socket could not be created. 101 ***/ 102 public DatagramSocket createDatagramSocket(int port, InetAddress laddr) 103 throws SocketException; 104 }

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