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     final static String NO_METAZONE_KEY = "no.metazone.defined";
  39 
  40     private String tzid, metazone;
  41 
  42     // for java.time.format.ZoneNames.java
  43     private List<String> mzoneMapEntryList = new ArrayList<>();
  44     private Map<String, String> zones = new HashMap<>();
  45 
  46     MetaZonesParseHandler() {
  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     // metaZone: ID -> metazone
  59     // per locale: ID -> names, metazone -> names
  60     @Override
  61     public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
  62         switch (qName) {
  63         case "timezone":
  64             tzid = attributes.getValue("type");
  65             pushContainer(qName, attributes);
  66             break;
  67 
  68         case "usesMetazone":
  69             // Ignore any historical zone names (for now)
  70             if (attributes.getValue("to") == null) {
  71                 metazone = attributes.getValue("mzone");
  72             }
  73             pushIgnoredContainer(qName);
  74             break;
  75 
  76         case "mapZone":
  77             String territory = attributes.getValue("territory");
  78             if (territory.equals("001")) {
  79                 zones.put(attributes.getValue("other"), attributes.getValue("type"));
  80             } else {
  81                 mzoneMapEntryList.add(String.format("        \"%s\", \"%s\", \"%s\",",
  82                     attributes.getValue("other"),
  83                     territory,
  84                     attributes.getValue("type")));
  85             }
  86             pushIgnoredContainer(qName);
  87             break;
  88 
  89         case "version":
  90         case "generation":
  91             pushIgnoredContainer(qName);
  92             break;
  93 
  94         default:
  95             // treat anything else as a container
  96             pushContainer(qName, attributes);
  97             break;
  98         }
  99     }
 100 
 101     @Override
 102     public void endElement(String uri, String localName, String qName) throws SAXException {
 103         assert qName.equals(currentContainer.getqName()) : "current=" + currentContainer.getqName() + ", param=" + qName;
 104         switch (qName) {
 105         case "timezone":
 106             if (tzid == null) {
 107                 throw new InternalError();
 108             } else if (metazone == null) {
 109                 String no_meta = get(NO_METAZONE_KEY);
 110                 put(NO_METAZONE_KEY, no_meta == null ? tzid : no_meta + " " + tzid);
 111                 CLDRConverter.info("No metazone defined for %s%n", tzid);
 112             } else {
 113                 put(tzid, metazone);
 114             }
 115             tzid = null;
 116             metazone = null;
 117             break;
 118         }
 119         currentContainer = currentContainer.getParent();
 120     }
 121 
 122     public Map<String, String> zidMap() {
 123         return zones;
 124     }
 125 
 126     public Stream<String> mzoneMapEntry() {
 127         return mzoneMapEntryList.stream();
 128     }
 129 }