01: /*
02: * Copyright 2001-2005 The Apache Software Foundation
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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: */
16: package org.apache.commons.net.smtp;
17:
18: /***
19: * SMTPCommand stores a set of constants for SMTP command codes. To interpret
20: * the meaning of the codes, familiarity with RFC 821 is assumed.
21: * The mnemonic constant names are transcriptions from the code descriptions
22: * of RFC 821. For those who think in terms of the actual SMTP commands,
23: * a set of constants such as {@link #HELO HELO } are provided
24: * where the constant name is the same as the SMTP command.
25: * <p>
26: * <p>
27: * @author Daniel F. Savarese
28: ***/
29:
30: public final class SMTPCommand {
31:
32: public static final int HELO = 0;
33: public static final int MAIL = 1;
34: public static final int RCPT = 2;
35: public static final int DATA = 3;
36: public static final int SEND = 4;
37: public static final int SOML = 5;
38: public static final int SAML = 6;
39: public static final int RSET = 7;
40: public static final int VRFY = 8;
41: public static final int EXPN = 9;
42: public static final int HELP = 10;
43: public static final int NOOP = 11;
44: public static final int TURN = 12;
45: public static final int QUIT = 13;
46:
47: public static final int HELLO = HELO;
48: public static final int LOGIN = HELO;
49: public static final int MAIL_FROM = MAIL;
50: public static final int RECIPIENT = RCPT;
51: public static final int SEND_MESSAGE_DATA = DATA;
52: public static final int SEND_FROM = SEND;
53: public static final int SEND_OR_MAIL_FROM = SOML;
54: public static final int SEND_AND_MAIL_FROM = SAML;
55: public static final int RESET = RSET;
56: public static final int VERIFY = VRFY;
57: public static final int EXPAND = EXPN;
58: // public static final int HELP = HELP;
59: // public static final int NOOP = NOOP;
60: // public static final int TURN = TURN;
61: // public static final int QUIT = QUIT;
62: public static final int LOGOUT = QUIT;
63:
64: // Cannot be instantiated
65: private SMTPCommand() {
66: }
67:
68: static final String[] _commands = { "HELO", "MAIL FROM:",
69: "RCPT TO:", "DATA", "SEND FROM:", "SOML FROM:",
70: "SAML FROM:", "RSET", "VRFY", "EXPN", "HELP", "NOOP",
71: "TURN", "QUIT" };
72:
73: /***
74: * Retrieve the SMTP protocol command string corresponding to a specified
75: * command code.
76: * <p>
77: * @param command The command code.
78: * @return The SMTP protcol command string corresponding to a specified
79: * command code.
80: ***/
81: public static final String getCommand(int command) {
82: return _commands[command];
83: }
84:
85: }
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