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
31 * (<a href="http://www.ietf.org/rfc/rfc943">RFC 943</a>).
32 * <p/>
33 * Each invocation record stored by this CommandHandler contains no data elements.
34 *
35 * @author Chris Mair
36 * @version $Revision$ - $Date$
37 */
38public class SystCommandHandler extends AbstractStubCommandHandler implements CommandHandler {
39
40    private String systemName = "WINDOWS";
41
42    /**
43     * Constructor. Initialize the replyCode.
44     */
45    public SystCommandHandler() {
46        setReplyCode(ReplyCodes.SYST_OK);
47    }
48
49    public void handleCommand(Command command, Session session, InvocationRecord invocationRecord) {
50        sendReply(session, quotes(systemName));
51    }
52
53    /**
54     * Set the systemName String to be returned by this command
55     *
56     * @param systemName - the systemName
57     */
58    public void setSystemName(String systemName) {
59        Assert.notNull(systemName, "systemName");
60        this.systemName = systemName;
61    }
62
63}
64