Java tutorial
/* * 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 write 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. * <p> * <p> * @see TFTPPacket * @see TFTPRequestPacket * @see TFTPPacketException * @see TFTP ***/ public final class TFTPWriteRequestPacket extends TFTPRequestPacket { /*** * Creates a write request packet to be sent to a host at a * given port with a filename and transfer mode request. * <p> * @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 TFTPWriteRequestPacket(InetAddress destination, int port, String filename, int mode) { super(destination, port, TFTPPacket.WRITE_REQUEST, filename, mode); } /*** * Creates a write request packet of based on a received * datagram and assumes the datagram has already been identified as a * write request. Assumes the datagram is at least length 4, else an * ArrayIndexOutOfBoundsException may be thrown. * <p> * @param datagram The datagram containing the received request. * @throws TFTPPacketException If the datagram isn't a valid TFTP * request packet. ***/ TFTPWriteRequestPacket(DatagramPacket datagram) throws TFTPPacketException { super(TFTPPacket.WRITE_REQUEST, datagram); } }