| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.*; |
| import java.nio.charset.*; |
| import java.nio.file.*; |
| import java.util.*; |
| |
| public class EquivMapsGenerator { |
| |
| /* |
| * IANA Language Subtag Registry file downloaded from |
| * http://www.iana.org/assignments/language-subtag-registry |
| */ |
| private static final String DEFAULT_LSR_FILE = |
| "language-subtag-registry.txt"; |
| |
| private static boolean verbose = false; |
| |
| public static void main(String[] args) throws Exception { |
| String fileLSR = DEFAULT_LSR_FILE; |
| |
| for (int i = 0; i < args.length; i++) { |
| String s = args[i]; |
| if (s.equals("-lsr")) { |
| fileLSR = args[++i]; |
| } else if (s.equals("-verbose")) { |
| verbose = true; |
| } |
| } |
| |
| readLSRfile(fileLSR); |
| generateEquivalentMap(); |
| generateSourceCode(); |
| } |
| |
| private static String LSRrevisionDate; |
| private static Map<String, StringBuilder> initialLanguageMap = |
| new TreeMap<>(); |
| private static Map<String, StringBuilder> initialRegionVariantMap = |
| new TreeMap<>(); |
| |
| private static Map<String, String> sortedLanguageMap1 = new TreeMap<>(); |
| private static Map<String, String[]> sortedLanguageMap2 = new TreeMap<>(); |
| private static Map<String, String> sortedRegionVariantMap = |
| new TreeMap<>(); |
| |
| private static void readLSRfile(String filename) throws Exception { |
| String type = null; |
| String tag = null; |
| String preferred = null; |
| int mappingNum = 0; |
| |
| for (String line : Files.readAllLines(Paths.get(filename), |
| Charset.forName("UTF-8"))) { |
| line = line.toLowerCase(); |
| int index = line.indexOf(' ')+1; |
| if (line.startsWith("file-date:")) { |
| LSRrevisionDate = line.substring(index); |
| if (verbose) { |
| System.out.println("LSR revision date=" + LSRrevisionDate); |
| } |
| } else if (line.startsWith("type:")) { |
| type = line.substring(index); |
| } else if (line.startsWith("tag:") || line.startsWith("subtag:")) { |
| tag = line.substring(index); |
| } else if (line.startsWith("preferred-value:") |
| && !type.equals("extlang")) { |
| preferred = line.substring(index); |
| mappingNum++; |
| processDeprecatedData(type, tag, preferred); |
| } else if (line.equals("%%")) { |
| type = null; |
| tag = null; |
| preferred = null; |
| } |
| } |
| |
| if (verbose) { |
| System.out.println("readLSRfile(" + filename + ")"); |
| System.out.println(" Total number of mapping=" + mappingNum); |
| System.out.println("\n Map for language. Size=" |
| + initialLanguageMap.size()); |
| |
| for (String key : initialLanguageMap.keySet()) { |
| System.out.println(" " + key + ": \"" |
| + initialLanguageMap.get(key) + "\""); |
| } |
| |
| System.out.println("\n Map for region and variant. Size=" |
| + initialRegionVariantMap.size()); |
| |
| for (String key : initialRegionVariantMap.keySet()) { |
| System.out.println(" " + key + ": \"" |
| + initialRegionVariantMap.get(key) + "\""); |
| } |
| } |
| } |
| |
| private static void processDeprecatedData(String type, |
| String tag, |
| String preferred) { |
| StringBuilder sb; |
| if (type.equals("region") || type.equals("variant")) { |
| if (!initialRegionVariantMap.containsKey(preferred)) { |
| sb = new StringBuilder("-"); |
| sb.append(preferred); |
| sb.append(",-"); |
| sb.append(tag); |
| initialRegionVariantMap.put("-"+preferred, sb); |
| } else { |
| throw new RuntimeException("New case, need implementation." |
| + " A region/variant subtag \"" + preferred |
| + "\" is registered for more than one subtags."); |
| } |
| } else { // language, grandfahered, and redundant |
| if (!initialLanguageMap.containsKey(preferred)) { |
| sb = new StringBuilder(preferred); |
| sb.append(','); |
| sb.append(tag); |
| initialLanguageMap.put(preferred, sb); |
| } else { |
| sb = initialLanguageMap.get(preferred); |
| sb.append(','); |
| sb.append(tag); |
| initialLanguageMap.put(preferred, sb); |
| } |
| } |
| } |
| |
| private static void generateEquivalentMap() { |
| String[] subtags; |
| for (String preferred : initialLanguageMap.keySet()) { |
| subtags = initialLanguageMap.get(preferred).toString().split(","); |
| |
| if (subtags.length == 2) { |
| sortedLanguageMap1.put(subtags[0], subtags[1]); |
| sortedLanguageMap1.put(subtags[1], subtags[0]); |
| } else if (subtags.length == 3) { |
| sortedLanguageMap2.put(subtags[0], |
| new String[]{subtags[1], subtags[2]}); |
| sortedLanguageMap2.put(subtags[1], |
| new String[]{subtags[0], subtags[2]}); |
| sortedLanguageMap2.put(subtags[2], |
| new String[]{subtags[0], subtags[1]}); |
| } else { |
| throw new RuntimeException("New case, need implementation." |
| + " A language subtag \"" + preferred |
| + "\" is registered for more than two subtags. "); |
| } |
| } |
| |
| for (String preferred : initialRegionVariantMap.keySet()) { |
| subtags = |
| initialRegionVariantMap.get(preferred).toString().split(","); |
| |
| sortedRegionVariantMap.put(subtags[0], subtags[1]); |
| sortedRegionVariantMap.put(subtags[1], subtags[0]); |
| } |
| |
| if (verbose) { |
| System.out.println("generateEquivalentMap()"); |
| System.out.println(" \nSorted map for language subtags which have only one equivalent. Size=" |
| + sortedLanguageMap1.size()); |
| for (String key : sortedLanguageMap1.keySet()) { |
| System.out.println(" " + key + ": \"" |
| + sortedLanguageMap1.get(key) + "\""); |
| } |
| |
| System.out.println("\n Sorted map for language subtags which have multiple equivalents. Size=" |
| + sortedLanguageMap2.size()); |
| for (String key : sortedLanguageMap2.keySet()) { |
| String[] s = sortedLanguageMap2.get(key); |
| System.out.println(" " + key + ": \"" |
| + s[0] + "\", \"" + s[1] + "\""); |
| } |
| |
| System.out.println("\n Sorted map for region and variant subtags. Size=" |
| + sortedRegionVariantMap.size()); |
| for (String key : sortedRegionVariantMap.keySet()) { |
| System.out.println(" " + key + ": \"" |
| + sortedRegionVariantMap.get(key) + "\""); |
| } |
| } |
| System.out.println(); |
| } |
| |
| private static final String headerText = |
| "final class LocaleEquivalentMaps {\n\n" |
| + " static final Map<String, String> singleEquivMap;\n" |
| + " static final Map<String, String[]> multiEquivsMap;\n" |
| + " static final Map<String, String> regionVariantEquivMap;\n\n" |
| + " static {\n" |
| + " singleEquivMap = new HashMap<>();\n" |
| + " multiEquivsMap = new HashMap<>();\n" |
| + " regionVariantEquivMap = new HashMap<>();\n\n" |
| + " // This is an auto-generated file and should not be manually edited.\n"; |
| |
| private static final String footerText = |
| " }\n\n" |
| + "}"; |
| |
| private static void generateSourceCode() { |
| System.out.println(headerText |
| + " // LSR Revision: " + LSRrevisionDate); |
| |
| for (String key : sortedLanguageMap1.keySet()) { |
| String value = sortedLanguageMap1.get(key); |
| System.out.println(" singleEquivMap.put(\"" |
| + key + "\", \"" + value + "\");"); |
| } |
| System.out.println(); |
| for (String key : sortedLanguageMap2.keySet()) { |
| String[] values = sortedLanguageMap2.get(key); |
| System.out.println(" multiEquivsMap.put(\"" |
| + key + "\", new String[] {\"" + values[0] + "\", \"" |
| + values[1] + "\"});"); |
| } |
| System.out.println(); |
| for (String key : sortedRegionVariantMap.keySet()) { |
| String value = sortedRegionVariantMap.get(key); |
| System.out.println(" regionVariantEquivMap.put(\"" |
| + key + "\", \"" + value + "\");"); |
| } |
| |
| System.out.println(footerText); |
| } |
| |
| } |