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.dnslabel; 012 013/** 014 * A DNS label which contains more than just letters, digits and a hyphen. 015 * 016 */ 017public abstract class NonLdhLabel extends DnsLabel { 018 019 protected NonLdhLabel(String label) { 020 super(label); 021 } 022 023 protected static DnsLabel fromInternal(String label) { 024 if (UnderscoreLabel.isUnderscoreLabelInternal(label)) { 025 return new UnderscoreLabel(label); 026 } 027 028 if (LeadingOrTrailingHyphenLabel.isLeadingOrTrailingHypenLabelInternal(label)) { 029 return new LeadingOrTrailingHyphenLabel(label); 030 } 031 032 return new OtherNonLdhLabel(label); 033 } 034 035}