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 * https://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 /** The loopback address (ie, ::1 or 127.0.0.1 */ 35 public static final InetAddress LOOPBACK = getLoopbackAddress(); 36 37 /** The loopback hostname */ 38 public static final String LOOPBACK_HOSTNAME = getLoopbackHostName(); 39 40 /** 41 * Private constructor. 42 */ 43 private Network() 44 { 45 } 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 return InetAddress.getLoopbackAddress(); 58 } 59 60 61 /** 62 * Construct a LDAP URL using the loopback address. 63 * 64 * @param port The port 65 * @return The Loopback URL 66 */ 67 public static String ldapLoopbackUrl( int port ) 68 { 69 return "ldap://" + LOOPBACK_HOSTNAME + ":" + port; 70 } 71 }