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/*
* Copyright 2008 the original author or authors.
*
* Licensed 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.mockftpserver.fake.command;
import org.mockftpserver.core.command.Command;
import org.mockftpserver.core.command.ReplyCodes;
import org.mockftpserver.core.session.Session;
import org.mockftpserver.core.util.StringUtil;
import java.util.Arrays;
import java.util.List;
/**
* CommandHandler for the HELP command. Handler logic:
* <ol>
* <li>If the optional command-name parameter is specified, then reply with 214 along with the
* help text configured for that command (or empty if none)</li>
* <li>Otherwise, reply with 214 along with the configured default help text that has been configured
* (or empty if none)</li>
* </ol>
* <p/>
* The help text is configured within the {@link org.mockftpserver.fake.FakeFtpServer}.
*
* @author Chris Mair
* @version $Revision$ - $Date$
* @see org.mockftpserver.fake.ServerConfiguration
* @see org.mockftpserver.fake.FakeFtpServer
*/
public class HelpCommandHandler extends AbstractFakeCommandHandler {
protected void handle(Command command, Session session) {
List parameters = Arrays.asList(command.getParameters());
String key = StringUtil.join(parameters, " ");
String help = getServerConfiguration().getHelpText(key);
if (help == null) {
sendReply(session, ReplyCodes.HELP_OK, "help.noHelpTextDefined", list(key));
} else {
sendReply(session, ReplyCodes.HELP_OK, "help", list(help));
}
}
}
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