    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.telnet;
    019
    020/***
    021 * Simple option handler that can be used for options
    022 * that don't require subnegotiation.
    023 * <p>
    024 * @author Bruno D'Avanzo
    025 ***/
    026public class SimpleOptionHandler extends TelnetOptionHandler
    027{
    028    /***
    029     * Constructor for the SimpleOptionHandler. Allows defining desired
    030     * initial setting for local/remote activation of this option and
    031     * behaviour in case a local/remote activation request for this
    032     * option is received.
    033     * <p>
    034     * @param optcode - option code.
    035     * @param initlocal - if set to true, a WILL is sent upon connection.
    036     * @param initremote - if set to true, a DO is sent upon connection.
    037     * @param acceptlocal - if set to true, any DO request is accepted.
    038     * @param acceptremote - if set to true, any WILL request is accepted.
    039     ***/
    040    public SimpleOptionHandler(int optcode,
    041                                boolean initlocal,
    042                                boolean initremote,
    043                                boolean acceptlocal,
    044                                boolean acceptremote)
    045    {
    046        super(optcode, initlocal, initremote,
    047                                      acceptlocal, acceptremote);
    048    }
    049
    050    /***
    051     * Constructor for the SimpleOptionHandler. Initial and accept
    052     * behaviour flags are set to false
    053     * <p>
    054     * @param optcode - option code.
    055     ***/
    056    public SimpleOptionHandler(int optcode)
    057    {
    058        super(optcode, false, false, false, false);
    059    }
    060
    061    /***
    062     * Implements the abstract method of TelnetOptionHandler.
    063     * <p>
    064     * @param suboptionData - the sequence received, whithout IAC SB & IAC SE
    065     * @param suboptionLength - the length of data in suboption_data
    066     * <p>
    067     * @return always null (no response to subnegotiation)
    068     ***/
    069    @Override
    070    public int[] answerSubnegotiation(int suboptionData[], int suboptionLength)
    071    {
    072        return null;
    073    }
    074
    075    /***
    076     * Implements the abstract method of TelnetOptionHandler.
    077     * <p>
    078     * @return always null (no response to subnegotiation)
    079     ***/
    080    @Override
    081    public int[] startSubnegotiationLocal()
    082    {
    083        return null;
    084    }
    085
    086    /***
    087     * Implements the abstract method of TelnetOptionHandler.
    088     * <p>
    089     * @return always null (no response to subnegotiation)
    090     ***/
    091    @Override
    092    public int[] startSubnegotiationRemote()
    093    {
    094        return null;
    095    }
    096}