1 /*
   2  * Copyright (c) 2012, 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 org.xml.sax.Attributes;
  31 import org.xml.sax.InputSource;
  32 import org.xml.sax.SAXException;
  33 
  34 class MetaZonesParseHandler extends AbstractLDMLHandler<String> {
  35     private String tzid, metazone;
  36 
  37     MetaZonesParseHandler() {
  38     }
  39 
  40     @Override
  41     public InputSource resolveEntity(String publicID, String systemID) throws IOException, SAXException {
  42         // avoid HTTP traffic to unicode.org
  43         if (systemID.startsWith(CLDRConverter.SPPL_LDML_DTD_SYSTEM_ID)) {
  44             return new InputSource((new File(CLDRConverter.LOCAL_SPPL_LDML_DTD)).toURI().toString());
  45         }
  46         return null;
  47     }
  48 
  49     @Override
  50     @SuppressWarnings("fallthrough")
  51     public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
  52         switch (qName) {
  53         case "timezone":
  54             tzid = attributes.getValue("type");
  55             pushContainer(qName, attributes);
  56             break;
  57 
  58         case "usesMetazone":
  59             // Ignore any historical zone names (for now)
  60             if (attributes.getValue("to") == null) {
  61                 metazone = attributes.getValue("mzone");
  62             }
  63             pushIgnoredContainer(qName);
  64             break;
  65 
  66         case "version":
  67         case "generation":
  68             pushIgnoredContainer(qName);
  69             break;
  70 
  71         default:
  72             // treat anything else as a container
  73             pushContainer(qName, attributes);
  74             break;
  75         }
  76     }
  77 
  78     @Override
  79     public void endElement(String uri, String localName, String qName) throws SAXException {
  80         assert qName.equals(currentContainer.getqName()) : "current=" + currentContainer.getqName() + ", param=" + qName;
  81         switch (qName) {
  82         case "timezone":
  83             if (tzid == null || metazone == null) {
  84                 throw new InternalError();
  85             }
  86             put(tzid, metazone);
  87             break;
  88         }
  89         currentContainer = currentContainer.getParent();
  90     }
  91 }