001/* 002 * $Id: LangAlt.java 4784 2011-03-15 08:33:00Z blowagie $ 003 * 004 * This file is part of the iText (R) project. 005 * Copyright (c) 1998-2011 1T3XT BVBA 006 * Authors: Bruno Lowagie, Paulo Soares, et al. 007 * 008 * This program is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Affero General Public License version 3 010 * as published by the Free Software Foundation with the addition of the 011 * following permission added to Section 15 as permitted in Section 7(a): 012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT, 013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. 014 * 015 * This program is distributed in the hope that it will be useful, but 016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 017 * or FITNESS FOR A PARTICULAR PURPOSE. 018 * See the GNU Affero General Public License for more details. 019 * You should have received a copy of the GNU Affero General Public License 020 * along with this program; if not, see http://www.gnu.org/licenses or write to 021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 022 * Boston, MA, 02110-1301 USA, or download the license from the following URL: 023 * http://itextpdf.com/terms-of-use/ 024 * 025 * The interactive user interfaces in modified source and object code versions 026 * of this program must display Appropriate Legal Notices, as required under 027 * Section 5 of the GNU Affero General Public License. 028 * 029 * In accordance with Section 7(b) of the GNU Affero General Public License, 030 * a covered work must retain the producer line in every PDF that is created 031 * or manipulated using iText. 032 * 033 * You can be released from the requirements of the license by purchasing 034 * a commercial license. Buying such a license is mandatory as soon as you 035 * develop commercial activities involving the iText software without 036 * disclosing the source code of your own applications. 037 * These activities include: offering paid services to customers as an ASP, 038 * serving PDFs on the fly in a web application, shipping iText with a closed 039 * source product. 040 * 041 * For more information, please contact iText Software Corp. at this 042 * address: sales@itextpdf.com 043 */ 044package com.itextpdf.text.xml.xmp; 045 046import java.util.Enumeration; 047import java.util.Properties; 048 049public class LangAlt extends Properties { 050 051 /** A serial version id. */ 052 private static final long serialVersionUID = 4396971487200843099L; 053 054 /** Key for the default language. */ 055 public static final String DEFAULT = "x-default"; 056 057 /** Creates a Properties object that stores languages for use in an XmpSchema */ 058 public LangAlt(String defaultValue) { 059 super(); 060 addLanguage(DEFAULT, defaultValue); 061 } 062 063 /** Creates a Properties object that stores languages for use in an XmpSchema */ 064 public LangAlt() { 065 super(); 066 } 067 068 /** 069 * Add a language. 070 */ 071 public void addLanguage(String language, String value) { 072 setProperty(language, XmpSchema.escape(value)); 073 } 074 075 /** 076 * Process a property. 077 */ 078 protected void process(StringBuffer buf, Object lang) { 079 buf.append("<rdf:li xml:lang=\""); 080 buf.append(lang); 081 buf.append("\" >"); 082 buf.append(get(lang)); 083 buf.append("</rdf:li>"); 084 } 085 086 /** 087 * Creates a String that can be used in an XmpSchema. 088 */ 089 @Override 090 public String toString() { 091 StringBuffer sb = new StringBuffer(); 092 sb.append("<rdf:Alt>"); 093 for (Enumeration<?> e = this.propertyNames(); e.hasMoreElements();) { 094 process(sb, e.nextElement()); 095 } 096 sb.append("</rdf:Alt>"); 097 return sb.toString(); 098 } 099 100}