001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package org.apache.commons.net; 019 020import java.net.DatagramSocket; 021import java.net.InetAddress; 022import java.net.SocketException; 023 024/** 025 * DefaultDatagramSocketFactory implements the DatagramSocketFactory interface by simply wrapping the java.net.DatagramSocket constructors. It is the default 026 * DatagramSocketFactory used by {@link org.apache.commons.net.DatagramSocketClient} implementations. 027 * 028 * 029 * @see DatagramSocketFactory 030 * @see DatagramSocketClient 031 * @see DatagramSocketClient#setDatagramSocketFactory 032 */ 033 034public class DefaultDatagramSocketFactory implements DatagramSocketFactory { 035 036 /** 037 * Creates a DatagramSocket on the local host at the first available port. 038 * 039 * @return a new DatagramSocket 040 * @throws SocketException If the socket could not be created. 041 */ 042 @Override 043 public DatagramSocket createDatagramSocket() throws SocketException { 044 return new DatagramSocket(); 045 } 046 047 /** 048 * Creates a DatagramSocket on the local host at a specified port. 049 * 050 * @param port The port to use for the socket. 051 * @return a new DatagramSocket 052 * @throws SocketException If the socket could not be created. 053 */ 054 @Override 055 public DatagramSocket createDatagramSocket(final int port) throws SocketException { 056 return new DatagramSocket(port); 057 } 058 059 /** 060 * Creates a DatagramSocket at the specified address on the local host at a specified port. 061 * 062 * @param port The port to use for the socket. 063 * @param laddr The local address to use. 064 * @return a new DatagramSocket 065 * @throws SocketException If the socket could not be created. 066 */ 067 @Override 068 public DatagramSocket createDatagramSocket(final int port, final InetAddress laddr) throws SocketException { 069 return new DatagramSocket(port, laddr); 070 } 071}