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.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 ***/ 026 public 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 }