mirror of https://github.com/nitu2003/T18n
95 lines
2.2 KiB
Java
95 lines
2.2 KiB
Java
package cn.glycol.t18n;
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import java.nio.charset.Charset;
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import java.util.ArrayList;
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import java.util.List;
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public class I18n {
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private static LanguageMap map;
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private static Charset charset;
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static {
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charset = Charset.forName(System.getProperty("file.encoding"));
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}
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public static void setLanguageMap(LanguageMap map) {
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I18n.map = map;
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}
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public static void setEncoding(String charset) {
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I18n.charset = Charset.forName(charset);
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}
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/** 自动翻译（translate）后再执行格式化（format） */
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public static String format(String key, Object...format) {
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return tryFormat(
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translate(key),
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format);
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}
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/** 自动从语言文件中提取翻译，空翻译时返回原键值 */
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public static String translate(String key) {
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return reEncode(getLanguageMapSafe().get(key), charset);
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}
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/** 自动翻译（translate）列表，将多行替换为一行后再执行格式化（format）<br>
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* @param key 进入列表的格式化代码（format key），例如<code>app.message.welcome.%s</code>，其中<code>%s</code>会被替换为从<code>0</code>开始的数字，逐行读取，直到空翻译或最大值（1000）
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*/
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public static String format2(String key, Object...format) {
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List<String> vlist = new ArrayList<String>();
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int i = 0;
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int max = 1000;
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while(true) {
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if(i >= max) break;
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String k = tryFormat(key, i);
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if(hasKey(k)) {
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vlist.add(translate(k));
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} else {
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break;
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}
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i++;
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}
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String v = "";
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for(String o : vlist) {
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v += o + "\n";
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}
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v = v.trim();
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v = tryFormat(v, format);
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return v;
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}
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public static boolean hasKey(String key) {
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return getLanguageMapSafe().containsKey(key);
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}
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public static boolean canTranslate(String key) {
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return hasKey(key);
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}
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private static String reEncode(String bef, Charset charset) {
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byte[] bytes = bef.getBytes();
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return new String(bytes, charset);
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}
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private static String tryFormat(String context, Object...format) {
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try {
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return String.format(context, format);
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} catch (Exception e) {
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return context;
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}
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}
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private static LanguageMap getLanguageMapSafe() {
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return map == null ? new LanguageMap() : map;
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}
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}
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