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001package org.hl7.fhir.r5.utils; 002 003/* 004 Copyright (c) 2011+, HL7, Inc. 005 All rights reserved. 006 007 Redistribution and use in source and binary forms, with or without modification, 008 are permitted provided that the following conditions are met: 009 010 * Redistributions of source code must retain the above copyright notice, this 011 list of conditions and the following disclaimer. 012 * Redistributions in binary form must reproduce the above copyright notice, 013 this list of conditions and the following disclaimer in the documentation 014 and/or other materials provided with the distribution. 015 * Neither the name of HL7 nor the names of its contributors may be used to 016 endorse or promote products derived from this software without specific 017 prior written permission. 018 019 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 020 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 021 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 022 IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 023 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 024 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 025 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 026 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 027 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 028 POSSIBILITY OF SUCH DAMAGE. 029 030 */ 031 032 033 034import java.io.FileNotFoundException; 035import java.io.IOException; 036import java.util.HashMap; 037import java.util.Map; 038 039import javax.xml.parsers.DocumentBuilder; 040import javax.xml.parsers.DocumentBuilderFactory; 041import javax.xml.parsers.ParserConfigurationException; 042 043import org.hl7.fhir.utilities.filesystem.CSFileInputStream; 044import org.hl7.fhir.utilities.xml.XMLUtil; 045import org.w3c.dom.Document; 046import org.w3c.dom.Element; 047import org.xml.sax.SAXException; 048 049public class Translations { 050 051 private String[] lang; 052 private Map<String, Element> messages = new HashMap<String, Element>(); 053 054 /** 055 * Set a default language to use 056 * 057 * @param lang 058 */ 059 public void setLang(String lang) { 060 this.lang = lang.split("[.;]"); 061 } 062 063 /** 064 * Load from the XML translations file maintained by the FHIR project 065 * 066 * @param filename 067 * @throws IOException 068 * @throws SAXException 069 * @throws FileNotFoundException 070 * @throws ParserConfigurationException 071 * @throws Exception 072 */ 073 public void load(String filename) throws FileNotFoundException, SAXException, IOException, ParserConfigurationException { 074 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 075 DocumentBuilder builder = factory.newDocumentBuilder(); 076 loadMessages(builder.parse(new CSFileInputStream(filename))); 077 } 078 079 private void loadMessages(Document doc) { 080 // TODO Auto-generated method stub 081 Element element = XMLUtil.getFirstChild(doc.getDocumentElement()); 082 while (element != null) { 083 messages.put(element.getAttribute("id"), element); 084 element = XMLUtil.getNextSibling(element); 085 } 086 } 087 088 public boolean hasTranslation(String id) { 089 return messages.containsKey(id); 090 } 091 092 /** 093 * use configured language 094 * 095 * @param id - the id of the message to retrieve 096 * @param defaultMsg - string to use if the message is not defined or a language match is not found (if null, then will default to english) 097 * @return the message 098 */ 099 public String getMessage(String id, String defaultMsg) { 100 return getMessage(id, lang, defaultMsg); 101 } 102 103 /** 104 * return the message in a specified language 105 * 106 * @param id - the id of the message to retrieve 107 * @param lang - a language string from a browser 108 * @param defaultMsg - string to use if the message is not defined or a language match is not found (if null, then will default to the english message) 109 * @return the message 110 */ 111 public String getMessage(String id, String lang, String defaultMsg) { 112 return getMessage(id, lang.split("[.;]"), defaultMsg); 113 } 114 115 private String getMessage(String id, String[] lang, String defaultMsg) { 116 Element msg = messages.get(id); 117 if (msg == null) 118 return defaultMsg; 119 for (String l : lang) { 120 String res = getByLang(msg, l); 121 if (res != null) 122 return res; 123 } 124 if (defaultMsg == null) { 125 String res = getByLang(msg, "en"); 126 if (res != null) 127 return res; 128 } 129 return defaultMsg; 130 } 131 132 private String getByLang(Element msg, String lang) { 133 Element c = XMLUtil.getFirstChild(msg); 134 while (c != null) { 135 if (c.getAttribute("lang").equals(lang)) 136 return c.getTextContent(); 137 c = XMLUtil.getNextSibling(c); 138 } 139 return null; 140 } 141 142 // http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes 143 public String getLangDesc(String s) { 144 if (s.equals("en")) 145 return "English"; 146 if (s.equals("nl")) 147 return "Nederlands (Dutch)"; 148 if (s.equals("de")) 149 return "Deutsch (German)"; 150 if (s.equals("ru")) 151 return "\u0440\u0443\u0301\u0441\u0441\u043a\u0438\u0439 (Russian)"; 152 return "\"" + s + "\""; 153 } 154 155 156}