001/* 002 * Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the Eclipse Public License v1.0 006 * which accompanies this distribution, and is available at 007 * http://www.eclipse.org/legal/epl-v10.html 008 * 009 * Contributors: 010 * Nuxeo - initial API and implementation 011 * 012 * $Id$ 013 */ 014 015package org.nuxeo.ecm.core.schema.types; 016 017import java.io.Serializable; 018 019/** 020 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 021 */ 022public class QName implements Serializable { 023 024 private static final long serialVersionUID = 5259846002688485463L; 025 026 final String prefix; 027 028 final String localName; 029 030 final String prefixedName; 031 032 /** 033 * Creates a QName without prefix (e.g. with the default prefix : ""). 034 * 035 * @param localName the local name 036 */ 037 public QName(String localName) { 038 this(localName, null); 039 } 040 041 /** 042 * Creates a QName having the given local name and prefix. 043 * 044 * @param localName 045 * @param prefix 046 */ 047 public QName(String localName, String prefix) { 048 this.localName = localName.intern(); 049 if (prefix == null || prefix.length() == 0) { 050 this.prefix = ""; 051 prefixedName = this.localName; 052 } else { 053 this.prefix = prefix.intern(); 054 prefixedName = (prefix + ':' + localName).intern(); 055 } 056 } 057 058 public final String getLocalName() { 059 return localName; 060 } 061 062 public final String getPrefixedName() { 063 return prefixedName; 064 } 065 066 public final String getPrefix() { 067 return prefix; 068 } 069 070 @Override 071 public int hashCode() { 072 return prefixedName.hashCode(); 073 } 074 075 @Override 076 public String toString() { 077 return prefixedName; 078 } 079 080 @Override 081 public boolean equals(Object obj) { 082 if (obj == this) { 083 return true; 084 } 085 if (obj instanceof QName) { 086 return ((QName) obj).prefixedName.equals(prefixedName); 087 } 088 return false; 089 } 090 091 /** 092 * Parses the given name and creates the corresponding QName. 093 * <p> 094 * If the given name is not prefixed then the default prefix (e.g. "") will be used (i.e. the name will remain 095 * unprefixed). 096 * 097 * @param name the name in the prefixed form 098 * @return the qname 099 */ 100 public static QName valueOf(String name) { 101 return valueOf(name, ""); 102 } 103 104 /** 105 * Parses the given name and create the corresponding QName. 106 * <p> 107 * If the given name is not prefixed then the given prefix will be used. 108 * 109 * @param name 110 * @param prefix 111 * @return 112 */ 113 public static QName valueOf(String name, String prefix) { 114 int p = name.indexOf(':'); 115 if (p > -1) { 116 return new QName(name.substring(p + 1), name.substring(0, p)); 117 } else { 118 return new QName(name, prefix); 119 } 120 } 121 122}