1 /*
   2  * Copyright (c) 2012, 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.*;
  31 import java.util.stream.*;
  32 
  33 import org.xml.sax.Attributes;
  34 import org.xml.sax.InputSource;
  35 import org.xml.sax.SAXException;
  36 
  37 class MetaZonesParseHandler extends AbstractLDMLHandler<String> {
  38     private String tzid, metazone;
  39 
  40     // for java.time.format.ZoneNames.java
  41     private List<String> mzoneMapEntryList = new ArrayList<>();
  42     private Map<String, String> zones = new HashMap<>();
  43 
  44     MetaZonesParseHandler() {
  45     }
  46 
  47     @Override
  48     public InputSource resolveEntity(String publicID, String systemID) throws IOException, SAXException {
  49         // avoid HTTP traffic to unicode.org
  50         if (systemID.startsWith(CLDRConverter.SPPL_LDML_DTD_SYSTEM_ID)) {
  51             return new InputSource((new File(CLDRConverter.LOCAL_SPPL_LDML_DTD)).toURI().toString());
  52         }
  53         return null;
  54     }
  55 
  56     // metaZone: ID -> metazone
  57     // per locale: ID -> names, metazone -> names
  58     @Override
  59     public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
  60         switch (qName) {
  61         case "timezone":
  62             tzid = attributes.getValue("type");
  63             pushContainer(qName, attributes);
  64             break;
  65 
  66         case "usesMetazone":
  67             // Ignore any historical zone names (for now)
  68             if (attributes.getValue("to") == null) {
  69                 metazone = attributes.getValue("mzone");
  70             }
  71             pushIgnoredContainer(qName);
  72             break;
  73 
  74         case "mapZone":
  75             String territory = attributes.getValue("territory");
  76             if (territory.equals("001")) {
  77                 zones.put(attributes.getValue("other"), attributes.getValue("type"));
  78             } else {
  79                 mzoneMapEntryList.add(String.format("        \"%s\", \"%s\", \"%s\",",
  80                     attributes.getValue("other"),
  81                     territory,
  82                     attributes.getValue("type")));
  83             }
  84             pushIgnoredContainer(qName);
  85             break;
  86 
  87         case "version":
  88         case "generation":
  89             pushIgnoredContainer(qName);
  90             break;
  91 
  92         default:
  93             // treat anything else as a container
  94             pushContainer(qName, attributes);
  95             break;
  96         }
  97     }
  98 
  99     @Override
 100     public void endElement(String uri, String localName, String qName) throws SAXException {
 101         assert qName.equals(currentContainer.getqName()) : "current=" + currentContainer.getqName() + ", param=" + qName;
 102         switch (qName) {
 103         case "timezone":
 104             if (tzid == null || metazone == null) {
 105                 throw new InternalError();
 106             }
 107             put(tzid, metazone);
 108             break;
 109         }
 110         currentContainer = currentContainer.getParent();
 111     }
 112 
 113     public Map<String, String> zidMap() {
 114         return zones;
 115     }
 116 
 117     public Stream<String> mzoneMapEntry() {
 118         return mzoneMapEntryList.stream();
 119     }
 120 }