com.b2international.commons.http.ExtendedLocale.java Source code

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Here is the source code for com.b2international.commons.http.ExtendedLocale.java

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/*
 * Copyright 2011-2016 B2i Healthcare Pte Ltd, http://b2i.sg
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.b2international.commons.http;

import java.io.Serializable;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.fasterxml.jackson.annotation.JsonValue;
import com.google.common.base.Strings;

/**
 * @since 4.5
 */
public class ExtendedLocale implements Serializable {

    private static final Pattern EXTENDED_LOCALE_PATTERN = Pattern
            .compile("([a-zA-Z]{2})(-([a-zA-Z]{2}))?(-x-([1-9][0-9]{5,17}))?");

    public static ExtendedLocale valueOf(String input) {
        final Matcher matcher = EXTENDED_LOCALE_PATTERN.matcher(input);
        if (matcher.matches()) {
            return new ExtendedLocale(matcher.group(1), matcher.group(3), matcher.group(5));
        } else {
            throw new IllegalArgumentException("Couldn't convert input " + input + " to an extended locale.");
        }
    }

    private final String language;
    private String country;
    private String languageRefSetId;

    public ExtendedLocale(String language, String country, String languageRefSetId) {
        this.language = Strings.nullToEmpty(language).toLowerCase(Locale.ENGLISH);
        this.country = Strings.nullToEmpty(country).toLowerCase(Locale.ENGLISH);
        this.languageRefSetId = Strings.nullToEmpty(languageRefSetId);
    }

    public String getLanguage() {
        return language;
    }

    public String getCountry() {
        return country;
    }

    public String getLanguageRefSetId() {
        return languageRefSetId;
    }

    public String getLanguageTag() {
        if (country.isEmpty()) {
            return language;
        } else {
            return language + "-" + country;
        }
    }

    @Override
    @JsonValue
    public String toString() {
        if (languageRefSetId.isEmpty()) {
            return getLanguageTag();
        } else {
            return getLanguageTag() + "-x-" + languageRefSetId;
        }
    }
}