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    
018    package org.apache.commons.net;
019    
020    import java.net.DatagramSocket;
021    import java.net.InetAddress;
022    import java.net.SocketException;
023    
024    /***
025     * DefaultDatagramSocketFactory implements the DatagramSocketFactory
026     * interface by simply wrapping the java.net.DatagramSocket
027     * constructors.  It is the default DatagramSocketFactory used by
028     * {@link org.apache.commons.net.DatagramSocketClient}
029     *  implementations.
030     * <p>
031     * <p>
032     * @see DatagramSocketFactory
033     * @see DatagramSocketClient
034     * @see DatagramSocketClient#setDatagramSocketFactory
035     ***/
036    
037    public class DefaultDatagramSocketFactory implements DatagramSocketFactory
038    {
039    
040        /***
041         * Creates a DatagramSocket on the local host at the first available port.
042         * <p>
043         * @exception SocketException If the socket could not be created.
044         ***/
045        public DatagramSocket createDatagramSocket() throws SocketException
046        {
047            return new DatagramSocket();
048        }
049    
050        /***
051         * Creates a DatagramSocket on the local host at a specified port.
052         * <p>
053         * @param port The port to use for the socket.
054         * @exception SocketException If the socket could not be created.
055         ***/
056        public DatagramSocket createDatagramSocket(int port) throws SocketException
057        {
058            return new DatagramSocket(port);
059        }
060    
061        /***
062         * Creates a DatagramSocket at the specified address on the local host
063         * at a specified port.
064         * <p>
065         * @param port The port to use for the socket.
066         * @param laddr  The local address to use.
067         * @exception SocketException If the socket could not be created.
068         ***/
069        public DatagramSocket createDatagramSocket(int port, InetAddress laddr)
070        throws SocketException
071        {
072            return new DatagramSocket(port, laddr);
073        }
074    }