001package org.hl7.fhir.dstu3.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
049@Deprecated
050public class Translations {
051
052  private String[] lang;
053  private Map<String, Element> messages = new HashMap<String, Element>();
054
055  /**
056   * Set a default language to use
057   * 
058   * @param lang
059   */
060  public void setLang(String lang) {
061    this.lang = lang.split("[.;]");
062  }
063  
064  /**
065   * Load from the XML translations file maintained by the FHIR project
066   * 
067   * @param filename
068   * @throws IOException 
069   * @throws SAXException 
070   * @throws FileNotFoundException 
071   * @throws ParserConfigurationException 
072   * @throws Exception
073   */
074  public void load(String filename) throws FileNotFoundException, SAXException, IOException, ParserConfigurationException {
075    DocumentBuilderFactory factory = XMLUtil.newXXEProtectedDocumentBuilderFactory();
076    DocumentBuilder builder = factory.newDocumentBuilder();
077    loadMessages(builder.parse(new CSFileInputStream(filename)));
078  }
079  
080  private void loadMessages(Document doc) {
081    // TODO Auto-generated method stub
082    Element element = XMLUtil.getFirstChild(doc.getDocumentElement());
083    while (element != null) {
084      messages.put(element.getAttribute("id"), element);
085      element = XMLUtil.getNextSibling(element);
086    }
087  }
088
089  public boolean hasTranslation(String id) {
090    return messages.containsKey(id);
091  }
092
093  /**
094   * use configured language
095   * 
096   * @param id - the id of the message to retrieve
097   * @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)
098   * @return the message
099   */
100  public String getMessage(String id, String defaultMsg) {
101    return getMessage(id, lang, defaultMsg);
102  }
103
104  /**
105   * return the message in a specified language
106   * 
107   * @param id - the id of the message to retrieve
108   * @param lang - a language string from a browser
109   * @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)
110   * @return the message
111   */
112  public String getMessage(String id, String lang, String defaultMsg) {
113    return getMessage(id, lang.split("[.;]"), defaultMsg);
114  }
115
116  private String getMessage(String id, String[] lang, String defaultMsg) {
117    Element msg = messages.get(id);
118    if (msg == null)
119      return defaultMsg;
120    for (String l : lang) {
121      String res = getByLang(msg, l);
122      if (res != null)
123        return res;
124    }
125    if (defaultMsg == null) {
126      String res = getByLang(msg, "en");
127      if (res != null)
128        return res;
129    }
130    return defaultMsg;
131  }
132
133  private String getByLang(Element msg, String lang) {
134    Element c = XMLUtil.getFirstChild(msg);
135    while (c != null) {
136      if (c.getAttribute("lang").equals(lang))
137        return c.getTextContent();
138      c = XMLUtil.getNextSibling(c);
139    }
140    return null;
141  }
142 
143  // http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
144  public String getLangDesc(String s) {
145    if (s.equals("en"))
146      return "English";
147    if (s.equals("nl"))
148      return "Nederlands (Dutch)";
149    if (s.equals("de"))
150      return "Deutsch (German)";
151    if (s.equals("ru"))
152      return "\u0440\u0443\u0301\u0441\u0441\u043a\u0438\u0439 (Russian)";
153    return "\"" + s + "\"";
154  }
155
156
157}