com.netflix.imfutility.itunes.locale.LocaleHelper.java Source code

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Here is the source code for com.netflix.imfutility.itunes.locale.LocaleHelper.java

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/*
 * Copyright (C) 2016 Netflix, Inc.
 *
 *     This file is part of IMF Conversion Utility.
 *
 *     IMF Conversion Utility is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     IMF Conversion Utility 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 for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with IMF Conversion Utility.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.netflix.imfutility.itunes.locale;

import org.apache.commons.lang3.LocaleUtils;
import org.apache.commons.lang3.StringUtils;

import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;

/**
 * Utility class to help convert locale between xx_XX and xx-XX formats.
 */
public final class LocaleHelper {

    private static final Map<String, Locale> DEFAULT_REGIONS = Collections
            .unmodifiableMap(new LinkedHashMap<String, Locale>() {
                {
                    put("en", Locale.US);
                    put("fr", Locale.FRANCE);
                    put("pt", LocaleUtils.toLocale("pt_PT"));
                    put("es", LocaleUtils.toLocale("es_ES"));
                }
            });

    private LocaleHelper() {
    }

    public static String toITunesLocale(Locale locale) {
        return locale.toString().replace("_", "-");
    }

    public static Locale fromITunesLocale(String locale) {
        return LocaleUtils.toLocale(locale.replace("-", "_"));
    }

    public static Locale ensureDefaultRegion(String lang) {
        if (StringUtils.isBlank(lang)) {
            return null;
        }

        if (DEFAULT_REGIONS.containsKey(lang)) {
            return DEFAULT_REGIONS.get(lang);
        } else {
            return fromITunesLocale(lang);
        }
    }

    public static boolean equalsByDefaultRegion(String lang0, String lang1) {
        Locale locale0 = ensureDefaultRegion(lang0);
        Locale locale1 = ensureDefaultRegion(lang1);

        return Objects.equals(locale0, locale1);
    }
}