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 * https://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 * Implements the DatagramSocketFactory interface by simply wrapping the {@link DatagramSocket} constructors. It is the default DatagramSocketFactory used by 026 * {@link org.apache.commons.net.DatagramSocketClient} implementations. 027 * 028 * @see DatagramSocketFactory 029 * @see DatagramSocketClient 030 * @see DatagramSocketClient#setDatagramSocketFactory 031 */ 032public class DefaultDatagramSocketFactory implements DatagramSocketFactory { 033 034 /** 035 * Constructs a new instance. 036 */ 037 public DefaultDatagramSocketFactory() { 038 // empty 039 } 040 041 /** 042 * Creates a DatagramSocket on the local host at the first available port. 043 * 044 * @return a new DatagramSocket 045 * @throws SocketException If the socket could not be created. 046 */ 047 @Override 048 public DatagramSocket createDatagramSocket() throws SocketException { 049 return new DatagramSocket(); 050 } 051 052 /** 053 * Creates a DatagramSocket on the local host at a specified port. 054 * 055 * @param port The port to use for the socket. 056 * @return a new DatagramSocket 057 * @throws SocketException If the socket could not be created. 058 */ 059 @Override 060 public DatagramSocket createDatagramSocket(final int port) throws SocketException { 061 return new DatagramSocket(port); 062 } 063 064 /** 065 * Creates a DatagramSocket at the specified address on the local host at a specified port. 066 * 067 * @param port The port to use for the socket. 068 * @param localAddress The local address to use. 069 * @return a new DatagramSocket 070 * @throws SocketException If the socket could not be created. 071 */ 072 @Override 073 public DatagramSocket createDatagramSocket(final int port, final InetAddress localAddress) throws SocketException { 074 return new DatagramSocket(port, localAddress); 075 } 076}