cn.nukkit.lang.BaseLang Maven / Gradle / Ivy
package cn.nukkit.lang;
import io.netty.util.internal.EmptyArrays;
import lombok.extern.log4j.Log4j2;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
/**
* @author MagicDroidX (Nukkit Project)
*/
@Log4j2
public class BaseLang {
public static final String FALLBACK_LANGUAGE = "eng";
protected final String langName;
protected Map lang;
protected Map fallbackLang = new HashMap<>();
public BaseLang(String lang) {
this(lang, null);
}
public BaseLang(String lang, String path) {
this(lang, path, FALLBACK_LANGUAGE);
}
public BaseLang(String lang, String path, String fallback) {
this.langName = lang.toLowerCase();
boolean useFallback = !lang.equals(fallback);
if (path == null) {
path = "language/";
try {
this.lang = this.loadLang(this.getClass().getModule().getResourceAsStream(path + this.langName + "/lang.ini"));
if (useFallback)
this.fallbackLang = this.loadLang(this.getClass().getModule().getResourceAsStream(path + fallback + "/lang.ini"));
} catch (IOException e) {
throw new RuntimeException(e);
}
} else {
this.lang = this.loadLang(path + this.langName + "/lang.ini");
if (useFallback) this.fallbackLang = this.loadLang(path + fallback + "/lang.ini");
}
if (this.fallbackLang == null) this.fallbackLang = this.lang;
}
public Map getLangMap() {
return lang;
}
public Map getFallbackLangMap() {
return fallbackLang;
}
public String getName() {
return this.get("language.name");
}
public String getLang() {
return langName;
}
protected Map loadLang(String path) {
try {
File file = new File(path);
if (!file.exists() || file.isDirectory()) {
throw new FileNotFoundException();
}
try (FileInputStream stream = new FileInputStream(file)) {
return parseLang(new BufferedReader(new InputStreamReader(stream, StandardCharsets.UTF_8)));
}
} catch (IOException e) {
log.fatal("Failed to load language at {}", path, e);
return null;
}
}
protected Map loadLang(InputStream stream) {
try {
return parseLang(new BufferedReader(new InputStreamReader(stream, StandardCharsets.UTF_8)));
} catch (IOException e) {
log.error("Failed to parse the language input stream", e);
return null;
}
}
private Map parseLang(BufferedReader reader) throws IOException {
Map d = new HashMap<>();
String line;
while ((line = reader.readLine()) != null) {
line = line.trim();
if (line.isEmpty() || line.charAt(0) == '#') {
continue;
}
String[] t = line.split("=", 2);
if (t.length < 2) {
continue;
}
String key = t[0];
String value = t[1];
if (value.length() > 1 && value.charAt(0) == '"' && value.charAt(value.length() - 1) == '"') {
value = value.substring(1, value.length() - 1).replace("\\\"", "\"").replace("\\\\", "\\");
}
if (value.isEmpty()) {
continue;
}
d.put(key, value);
}
return d;
}
public String translateString(String str) {
return this.translateString(str, new String[]{}, null);
}
public String translateString(String str, String... params) {
return this.translateString(str, Objects.requireNonNullElse(params, EmptyArrays.EMPTY_STRINGS), null);
}
public String translateString(String str, Object... params) {
if (params != null) {
String[] paramsToString = new String[params.length];
for (int i = 0; i < params.length; i++) {
paramsToString[i] = Objects.toString(params[i]);
}
return this.translateString(str, paramsToString, null);
}
return this.translateString(str, EmptyArrays.EMPTY_STRINGS, null);
}
public String translateString(String str, String param, String onlyPrefix) {
return this.translateString(str, new String[]{param}, onlyPrefix);
}
public String translateString(String str, String[] params, String onlyPrefix) {
String baseText = this.get(str);
baseText = this.parseTranslation((baseText != null && (onlyPrefix == null || str.indexOf(onlyPrefix) == 0)) ? baseText : str, onlyPrefix);
for (int i = 0; i < params.length; i++) {
baseText = baseText.replace("{%" + i + "}", this.parseTranslation(String.valueOf(params[i])));
}
return baseText;
}
public String translate(TextContainer c) {
String baseText = this.parseTranslation(c.getText());
if (c instanceof TranslationContainer) {
baseText = this.internalGet(c.getText());
baseText = this.parseTranslation(baseText != null ? baseText : c.getText());
for (int i = 0; i < ((TranslationContainer) c).getParameters().length; i++) {
baseText = baseText.replace("{%" + i + "}", this.parseTranslation(((TranslationContainer) c).getParameters()[i]));
}
}
return baseText;
}
public String internalGet(String id) {
if (this.lang.containsKey(id)) {
return this.lang.get(id);
} else if (this.fallbackLang.containsKey(id)) {
return this.fallbackLang.get(id);
}
return null;
}
public String get(String id) {
if (this.lang.containsKey(id)) {
return this.lang.get(id);
} else if (this.fallbackLang.containsKey(id)) {
return this.fallbackLang.get(id);
}
return id;
}
protected String parseTranslation(String text) {
return this.parseTranslation(text, null);
}
protected String parseTranslation(String text, String onlyPrefix) {
StringBuilder newString = new StringBuilder();
text = String.valueOf(text);
String replaceString = null;
int len = text.length();
for (int i = 0; i < len; ++i) {
char c = text.charAt(i);
if (replaceString != null) {
int ord = c;
if ((ord >= 0x30 && ord <= 0x39) // 0-9
|| (ord >= 0x41 && ord <= 0x5a) // A-Z
|| (ord >= 0x61 && ord <= 0x7a) || // a-z
c == '.' || c == '-') {
replaceString += String.valueOf(c);
} else {
String t = this.internalGet(replaceString.substring(1));
if (t != null && (onlyPrefix == null || replaceString.indexOf(onlyPrefix) == 1)) {
newString.append(t);
} else {
newString.append(replaceString);
}
replaceString = null;
if (c == '%') {
replaceString = String.valueOf(c);
} else {
newString.append(c);
}
}
} else if (c == '%') {
replaceString = String.valueOf(c);
} else {
newString.append(c);
}
}
if (replaceString != null) {
String t = this.internalGet(replaceString.substring(1));
if (t != null && (onlyPrefix == null || replaceString.indexOf(onlyPrefix) == 1)) {
newString.append(t);
} else {
newString.append(replaceString);
}
}
return newString.toString();
}
}
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