1ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair/* 2ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * Copyright 2008 the original author or authors. 3ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * 4ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * Licensed under the Apache License, Version 2.0 (the "License"); 5ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * you may not use this file except in compliance with the License. 6ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * You may obtain a copy of the License at 7ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * 8ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * http://www.apache.org/licenses/LICENSE-2.0 9ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * 10ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * Unless required by applicable law or agreed to in writing, software 11ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * distributed under the License is distributed on an "AS IS" BASIS, 12ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * See the License for the specific language governing permissions and 14ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * limitations under the License. 15ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair */ 16ef13cb2302efe30bdff397e11aae379cbb419b9bchrismairpackage org.mockftpserver.fake.command; 17ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair 18ef13cb2302efe30bdff397e11aae379cbb419b9bchrismairimport org.mockftpserver.core.command.Command; 19ef13cb2302efe30bdff397e11aae379cbb419b9bchrismairimport org.mockftpserver.core.command.ReplyCodes; 20ef13cb2302efe30bdff397e11aae379cbb419b9bchrismairimport org.mockftpserver.core.session.Session; 21ef13cb2302efe30bdff397e11aae379cbb419b9bchrismairimport org.mockftpserver.core.util.StringUtil; 22ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair 23ef13cb2302efe30bdff397e11aae379cbb419b9bchrismairimport java.util.Arrays; 24ef13cb2302efe30bdff397e11aae379cbb419b9bchrismairimport java.util.List; 25ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair 26ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair/** 27ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * CommandHandler for the HELP command. Handler logic: 28ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * <ol> 29ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * <li>If the optional command-name parameter is specified, then reply with 214 along with the 30ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * help text configured for that command (or empty if none)</li> 31ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * <li>Otherwise, reply with 214 along with the configured default help text that has been configured 32ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * (or empty if none)</li> 33ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * </ol> 34c561a9b3509b5021ddb2e2f8165e903909281269chrismair * <p/> 35c561a9b3509b5021ddb2e2f8165e903909281269chrismair * The help text is configured within the {@link org.mockftpserver.fake.FakeFtpServer}. 36ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * 37ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair * @author Chris Mair 382a0a3f946dba517a01cc26278f905156857c9c91chrismair * @version $Revision$ - $Date$ 39bd576ae311a45a994ae6b457fb2e5bb0ffe0d6b5chrismair * @see org.mockftpserver.fake.ServerConfiguration 40bd576ae311a45a994ae6b457fb2e5bb0ffe0d6b5chrismair * @see org.mockftpserver.fake.FakeFtpServer 41ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair */ 42ef13cb2302efe30bdff397e11aae379cbb419b9bchrismairpublic class HelpCommandHandler extends AbstractFakeCommandHandler { 43ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair 44ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair protected void handle(Command command, Session session) { 45ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair List parameters = Arrays.asList(command.getParameters()); 46ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair String key = StringUtil.join(parameters, " "); 47ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair String help = getServerConfiguration().getHelpText(key); 48ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair if (help == null) { 49ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair sendReply(session, ReplyCodes.HELP_OK, "help.noHelpTextDefined", list(key)); 50ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair } else { 51ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair sendReply(session, ReplyCodes.HELP_OK, "help", list(help)); 52ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair } 53ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair } 54ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair 55ef13cb2302efe30bdff397e11aae379cbb419b9bchrismair}