NewPipeExtractor/extractor/src/main/java/org/schabi/newpipe/extractor/localization/Localization.java

130 lines
4.0 KiB
Java

package org.schabi.newpipe.extractor.localization;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import org.schabi.newpipe.extractor.utils.LocaleCompat;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
public class Localization implements Serializable {
public static final Localization DEFAULT = new Localization("en", "GB");
@Nonnull
private final String languageCode;
@Nullable
private final String countryCode;
/**
* @param localizationCodeList a list of localization code, formatted like {@link
* #getLocalizationCode()}
*/
public static List<Localization> listFrom(final String... localizationCodeList) {
final List<Localization> toReturn = new ArrayList<>();
for (final String localizationCode : localizationCodeList) {
toReturn.add(fromLocalizationCode(localizationCode));
}
return Collections.unmodifiableList(toReturn);
}
/**
* @param localizationCode a localization code, formatted like {@link #getLocalizationCode()}
*/
public static Localization fromLocalizationCode(final String localizationCode) {
return fromLocale(LocaleCompat.forLanguageTag(localizationCode));
}
public Localization(@Nonnull final String languageCode, @Nullable final String countryCode) {
this.languageCode = languageCode;
this.countryCode = countryCode;
}
public Localization(@Nonnull final String languageCode) {
this(languageCode, null);
}
@Nonnull
public String getLanguageCode() {
return languageCode;
}
@Nonnull
public String getCountryCode() {
return countryCode == null ? "" : countryCode;
}
public Locale asLocale() {
return new Locale(getLanguageCode(), getCountryCode());
}
public static Localization fromLocale(@Nonnull final Locale locale) {
return new Localization(locale.getLanguage(), locale.getCountry());
}
/**
* Return a formatted string in the form of: {@code language-Country}, or
* just {@code language} if country is {@code null}.
*/
public String getLocalizationCode() {
return languageCode + (countryCode == null ? "" : "-" + countryCode);
}
@Override
public String toString() {
return "Localization[" + getLocalizationCode() + "]";
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (!(o instanceof Localization)) {
return false;
}
final Localization that = (Localization) o;
return languageCode.equals(that.languageCode)
&& Objects.equals(countryCode, that.countryCode);
}
@Override
public int hashCode() {
int result = languageCode.hashCode();
result = 31 * result + Objects.hashCode(countryCode);
return result;
}
/**
* Converts a three letter language code (ISO 639-2/T) to a Locale
* because limits of Java Locale class.
*
* @param code a three letter language code
* @return the Locale corresponding
*/
public static Locale getLocaleFromThreeLetterCode(@Nonnull final String code)
throws ParsingException {
final String[] languages = Locale.getISOLanguages();
final Map<String, Locale> localeMap = new HashMap<>(languages.length);
for (final String language : languages) {
final Locale locale = new Locale(language);
localeMap.put(locale.getISO3Language(), locale);
}
if (localeMap.containsKey(code)) {
return localeMap.get(code);
} else {
throw new ParsingException(
"Could not get Locale from this three letter language code" + code);
}
}
}