1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20
21 package org.apache.directory.api.util;
22
23
24 import java.net.InetAddress;
25
26
27 /**
28 * Network utils.
29 *
30 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
31 */
32 public final class Network
33 {
34 /**
35 * Private constructor.
36 */
37 private Network()
38 {
39 }
40
41 /** The loopback address (ie, ::1 or 127.0.0.1 */
42 public static final InetAddress LOOPBACK = getLoopbackAddress();
43
44 /** The loopback hostname */
45 public static final String LOOPBACK_HOSTNAME = getLoopbackHostName();
46
47
48 private static String getLoopbackHostName()
49 {
50 InetAddress loopbackAddress = InetAddress.getLoopbackAddress();
51 return loopbackAddress.getCanonicalHostName();
52 }
53
54
55 private static InetAddress getLoopbackAddress()
56 {
57 InetAddress loopbackAddress = InetAddress.getLoopbackAddress();
58 return loopbackAddress;
59 }
60
61
62 /**
63 * Construct a LDAP URL using the loopback address.
64 *
65 * @param port The port
66 * @return The Loopback URL
67 */
68 public static String ldapLoopbackUrl( int port )
69 {
70 return "ldap://" + LOOPBACK_HOSTNAME + ":" + port;
71 }
72 }