This class loads language specific texts when the #lang method is called for the first time. @author BaseX Team, BSD License @author Christian Gruen
| 18 | * @author Christian Gruen |
| 19 | */ |
| 20 | public final class Lang { |
| 21 | /** Language suffix. */ |
| 22 | private static final String SUFFIX = "lang"; |
| 23 | /** Cached source files. */ |
| 24 | private static final HashMap<String, String> TEXTS = new HashMap<>(); |
| 25 | /** Checks which strings have been applied. */ |
| 26 | private static final HashMap<String, Boolean> CHECK = new HashMap<>(); |
| 27 | |
| 28 | /** Private constructor. */ |
| 29 | private Lang() { } |
| 30 | |
| 31 | /* Reads the language file. */ |
| 32 | static { read(Prop.language); } |
| 33 | |
| 34 | /** |
| 35 | * Reads the specified language file. |
| 36 | * @param lang language |
| 37 | */ |
| 38 | private static synchronized void read(final String lang) { |
| 39 | TEXTS.clear(); |
| 40 | CHECK.clear(); |
| 41 | final String path = SUFFIX + '/' + lang + '.' + SUFFIX; |
| 42 | final TokenObjectMap<byte[]> map = Util.properties(path); |
| 43 | for(final byte[] key : map) { |
| 44 | final String name = Token.string(key), val = Token.string(map.get(key)); |
| 45 | if(TEXTS.put(name, val.replace("\n", Prop.NL)) != null) { |
| 46 | Util.errln("%." + SUFFIX + ": '%' is declared twice", lang, name); |
| 47 | } |
| 48 | CHECK.put(name, true); |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Returns the specified string. |
| 54 | * @param key key |
| 55 | * @return string |
| 56 | */ |
| 57 | static synchronized String lang(final String key) { |
| 58 | if(key == null) { |
| 59 | for(final String s : CHECK.keySet()) { |
| 60 | Util.errln("%." + SUFFIX + ": '%' can be removed", Prop.language, s); |
| 61 | } |
| 62 | return "---"; |
| 63 | } |
| 64 | |
| 65 | final String val = TEXTS.get(key); |
| 66 | if(val == null) { |
| 67 | Util.errln("%." + SUFFIX + ": '%' is missing", Prop.language, key); |
| 68 | return '[' + key + ']'; |
| 69 | } |
| 70 | CHECK.remove(key); |
| 71 | return val; |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Returns the specified string with some text extensions included. |
| 76 | * @param key key |
| 77 | * @param ext text text extensions |