001/* 002 * Copyright 2015-2020 the original author or authors 003 * 004 * This software is licensed under the Apache License, Version 2.0, 005 * the GNU Lesser General Public License version 2 or later ("LGPL") 006 * and the WTFPL. 007 * You may choose either license to govern your use of this software only 008 * upon the condition that you accept all of the terms of either 009 * the Apache License 2.0, the LGPL 2.1+ or the WTFPL. 010 */ 011package org.minidns.util; 012 013import org.minidns.dnsname.DnsName; 014 015/** 016 * Utilities related to internationalized domain names and dns name handling. 017 */ 018public final class NameUtil { 019 020 /** 021 * Check if two internationalized domain names are equal, possibly causing 022 * a serialization of both domain names. 023 * 024 * @param name1 The first domain name. 025 * @param name2 The second domain name. 026 * @return True if both domain names are the same. 027 */ 028 @SuppressWarnings("ReferenceEquality") 029 public static boolean idnEquals(String name1, String name2) { 030 if (name1 == name2) return true; // catches null, null 031 if (name1 == null) return false; 032 if (name2 == null) return false; 033 if (name1.equals(name2)) return true; 034 035 return DnsName.from(name1).compareTo(DnsName.from(name2)) == 0; 036 } 037 038}