    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 * 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 */
    032
    033public class DefaultDatagramSocketFactory implements DatagramSocketFactory {
    034
    035    /**
    036     * Creates a DatagramSocket on the local host at the first available port.
    037     *
    038     * @return a new DatagramSocket
    039     * @throws SocketException If the socket could not be created.
    040     */
    041    @Override
    042    public DatagramSocket createDatagramSocket() throws SocketException {
    043        return new DatagramSocket();
    044    }
    045
    046    /**
    047     * Creates a DatagramSocket on the local host at a specified port.
    048     *
    049     * @param port The port to use for the socket.
    050     * @return a new DatagramSocket
    051     * @throws SocketException If the socket could not be created.
    052     */
    053    @Override
    054    public DatagramSocket createDatagramSocket(final int port) throws SocketException {
    055        return new DatagramSocket(port);
    056    }
    057
    058    /**
    059     * Creates a DatagramSocket at the specified address on the local host at a specified port.
    060     *
    061     * @param port  The port to use for the socket.
    062     * @param localAddress The local address to use.
    063     * @return a new DatagramSocket
    064     * @throws SocketException If the socket could not be created.
    065     */
    066    @Override
    067    public DatagramSocket createDatagramSocket(final int port, final InetAddress localAddress) throws SocketException {
    068        return new DatagramSocket(port, localAddress);
    069    }
    070}