001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020 021package org.apache.directory.api.util; 022 023 024import java.net.InetAddress; 025 026 027/** 028 * Network utils. 029 * 030 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 031 */ 032public final class Network 033{ 034 /** The loopback address (ie, ::1 or 127.0.0.1 */ 035 public static final InetAddress LOOPBACK = getLoopbackAddress(); 036 037 /** The loopback hostname */ 038 public static final String LOOPBACK_HOSTNAME = getLoopbackHostName(); 039 040 /** 041 * Private constructor. 042 */ 043 private Network() 044 { 045 } 046 047 048 private static String getLoopbackHostName() 049 { 050 InetAddress loopbackAddress = InetAddress.getLoopbackAddress(); 051 return loopbackAddress.getCanonicalHostName(); 052 } 053 054 055 private static InetAddress getLoopbackAddress() 056 { 057 return InetAddress.getLoopbackAddress(); 058 } 059 060 061 /** 062 * Construct a LDAP URL using the loopback address. 063 * 064 * @param port The port 065 * @return The Loopback URL 066 */ 067 public static String ldapLoopbackUrl( int port ) 068 { 069 return "ldap://" + LOOPBACK_HOSTNAME + ":" + port; 070 } 071}