1 package org.jscsi.target.connection;
2
3
4 import org.jscsi.target.settings.TextKeyword;
5
6
7 /**
8 * The {@link SessionType} of a {@link TargetSession} determines which stages can be reached in the Full Feature Phase.
9 *
10 * @author Andreas Ergenzinger
11 */
12 public enum SessionType {
13
14 /**
15 * The session is a discovery session. The initiator is only allowed to issue request a list of available target and
16 * close the connection.
17 */
18 DISCOVERY(TextKeyword.DISCOVERY),
19 /**
20 * The session is a normal session. The initiator is allowed to issue all supported commands.
21 */
22 NORMAL(TextKeyword.NORMAL);
23
24 /**
25 * The session type as a text parameter negotiation <i>value</i> (as used in <i>key-value</> pairs).
26 */
27 private final String value;
28
29 /**
30 * The constructor.
31 *
32 * @param value the text parameter negotiation <i>value</i> (as used in <i>key-value</> pairs) describing this
33 * session type.
34 */
35 private SessionType (final String value) {
36 this.value = value;
37 }
38
39 public final String getValue () {
40 return value;
41 }
42
43 /**
44 * Returns a {@link SessionType} based on the <i>value</i>, which must be either <code>Discovery</code> or
45 * <code>Normal</code>. Otherwise the method will return <code>null</code>.
46 *
47 * @param value <code>Discovery</code> or <code>Normal</code>
48 * @return the specified {@link SessionType} or <code>null</code>
49 */
50 public static final SessionType getSessionType (final String value) {
51 final SessionType[] values = values();
52 for (SessionType s : values)
53 if (s.value.equals(value)) return s;
54 return null;
55 }
56 }