| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.commons.net.tftp; |
| |
| import java.net.DatagramPacket; |
| import java.net.InetAddress; |
| |
| /*** |
| * A class derived from TFTPRequestPacket definiing a TFTP read request |
| * packet type. |
| * <p> |
| * Details regarding the TFTP protocol and the format of TFTP packets can |
| * be found in RFC 783. But the point of these classes is to keep you |
| * from having to worry about the internals. Additionally, only very |
| * few people should have to care about any of the TFTPPacket classes |
| * or derived classes. Almost all users should only be concerned with the |
| * {@link org.apache.commons.net.tftp.TFTPClient} class |
| * {@link org.apache.commons.net.tftp.TFTPClient#receiveFile receiveFile()} |
| * and |
| * {@link org.apache.commons.net.tftp.TFTPClient#sendFile sendFile()} |
| * methods. |
| * |
| * |
| * @see TFTPPacket |
| * @see TFTPRequestPacket |
| * @see TFTPPacketException |
| * @see TFTP |
| ***/ |
| |
| public final class TFTPReadRequestPacket extends TFTPRequestPacket |
| { |
| |
| /*** |
| * Creates a read request packet to be sent to a host at a |
| * given port with a filename and transfer mode request. |
| * |
| * @param destination The host to which the packet is going to be sent. |
| * @param port The port to which the packet is going to be sent. |
| * @param filename The requested filename. |
| * @param mode The requested transfer mode. This should be on of the TFTP |
| * class MODE constants (e.g., TFTP.NETASCII_MODE). |
| ***/ |
| public TFTPReadRequestPacket(InetAddress destination, int port, |
| String filename, int mode) |
| { |
| super(destination, port, TFTPPacket.READ_REQUEST, filename, mode); |
| } |
| |
| /*** |
| * Creates a read request packet of based on a received |
| * datagram and assumes the datagram has already been identified as a |
| * read request. Assumes the datagram is at least length 4, else an |
| * ArrayIndexOutOfBoundsException may be thrown. |
| * |
| * @param datagram The datagram containing the received request. |
| * @throws TFTPPacketException If the datagram isn't a valid TFTP |
| * request packet. |
| ***/ |
| TFTPReadRequestPacket(DatagramPacket datagram) throws TFTPPacketException |
| { |
| super(TFTPPacket.READ_REQUEST, datagram); |
| } |
| |
| // for debugging |
| @Override |
| public String toString() { |
| return super.toString() + " RRQ " + getFilename() + " " + TFTP.getModeName(getMode()); |
| } |
| } |