1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package build.tools.cldrconverter;
  27 
  28 import java.io.File;
  29 import java.io.IOException;
  30 import java.util.HashMap;
  31 import java.util.Map;
  32 import java.util.stream.Stream;
  33 import org.xml.sax.Attributes;
  34 import org.xml.sax.InputSource;
  35 import org.xml.sax.SAXException;
  36 
  37 /**
  38  * Handles parsing of files in Locale Data Markup Language for
  39  * SupplementalMetadata.xml
  40  */
  41 
  42 class SupplementalMetadataParseHandler extends AbstractLDMLHandler<Object> {
  43     private final Map<String, String> languageAliasMap;
  44 
  45     SupplementalMetadataParseHandler() {
  46         languageAliasMap = new HashMap<>();
  47     }
  48 
  49     @Override
  50     public InputSource resolveEntity(String publicID, String systemID) throws IOException, SAXException {
  51         // avoid HTTP traffic to unicode.org
  52         if (systemID.startsWith(CLDRConverter.SPPL_LDML_DTD_SYSTEM_ID)) {
  53             return new InputSource((new File(CLDRConverter.LOCAL_SPPL_LDML_DTD)).toURI().toString());
  54         }
  55         return null;
  56     }
  57 
  58     @Override
  59     public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
  60         switch (qName) {
  61         case "zoneAlias":
  62             String reason = attributes.getValue("reason");
  63             if ("deprecated".equals(reason)) {
  64                 put(attributes.getValue("type"), attributes.getValue("replacement"));
  65             }
  66             pushIgnoredContainer(qName);
  67             break;
  68         case "languageAlias":
  69             String aliasReason = attributes.getValue("reason");
  70             if ("deprecated".equals(aliasReason) || "legacy".equals(aliasReason)) {
  71                 String tag = attributes.getValue("type");
  72                 if (!checkLegacyLocales(tag)) {
  73                    languageAliasMap.put(tag.replaceAll("_", "-"),
  74                    attributes.getValue("replacement").replaceAll("_", "-"));
  75                 }
  76             }
  77             pushIgnoredContainer(qName);
  78             break;
  79         default:
  80             // treat anything else as a container
  81             pushContainer(qName, attributes);
  82             break;
  83         }
  84     }
  85 
  86     public Stream<String> deprecatedMap() {
  87         return keySet().stream()
  88                 .map(k -> String.format("        \"%s\", \"%s\",", k, get(k)))
  89                 .sorted();
  90     }
  91     Map<String, String> getLanguageAliasData() {
  92         return languageAliasMap;
  93     }
  94 
  95     // skip language aliases for JDK legacy locales for ISO compatibility
  96     private boolean checkLegacyLocales(String tag) {
  97         return (tag.startsWith("no") || tag.startsWith("in")
  98                 || tag.startsWith("iw") || tag.startsWith("ji"));
  99     }
 100 }