org.apache.commons.net.tftp.TFTPWriteRequestPacket.java Source code

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/*
 * 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);
    }
}