SystCommandHandler.java revision 93102446a7b7c3d17888064b4e2e4e5cb534e6d0 
1/*
2 * Copyright 2007 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package org.mockftpserver.stub.command;
17
18import org.mockftpserver.core.command.Command;
19import org.mockftpserver.core.command.CommandHandler;
20import org.mockftpserver.core.command.InvocationRecord;
21import org.mockftpserver.core.command.ReplyCodes;
22import org.mockftpserver.core.session.Session;
23import org.mockftpserver.core.util.Assert;
24
25/**
26 * CommandHandler for the SYST (System) command. Send back a reply code of 215. By default,
27 * return "WINDOWS" as the system name. You can customize the returned name by
28 * setting the <code>systemName</code> property.
29 * <p>
30 * See the available system names listed in the Assigned Numbers document (RFC 943).
31 * <p>
32 * Each invocation record stored by this CommandHandler contains no data elements.
33
34 * @see http://www.ietf.org/rfc/rfc943
35 *
36 * @version $Revision: 95 $ - $Date: 2007-10-30 22:05:41 -0400 (Tue, 30 Oct 2007) $
37 *
38 * @author Chris Mair
39 */
40public final class SystCommandHandler extends AbstractStubCommandHandler implements CommandHandler {
41
42    private String systemName = "WINDOWS";
43
44    /**
45     * Constructor. Initialize the replyCode.
46     */
47    public SystCommandHandler() {
48        setReplyCode(ReplyCodes.SYST_OK);
49    }
50
51    /**
52     * @see org.mockftpserver.core.command.CommandHandler#handleCommand(Command, Session, InvocationRecord)
53     */
54    public void handleCommand(Command command, Session session, InvocationRecord invocationRecord) {
55        sendReply(session, quotes(systemName));
56    }
57
58    /**
59     * Set the systemName String to be returned by this command
60     * @param systemName - the systemName
61     */
62    public void setSystemName(String systemName) {
63        Assert.notNull(systemName, "systemName");
64        this.systemName = systemName;
65    }
66
67}
68