Example usage for java.util Locale getISOCountries

Introduction

In this page you can find the example usage for java.util Locale getISOCountries.

Prototype

public static String[] getISOCountries()

Source Link

Document

Returns a list of all 2-letter country codes defined in ISO 3166.

Usage

From source file:org.apache.maven.plugin.javadoc.AbstractJavadocMojo.java

/**
 * Checks for the validity of the Javadoc options used by the user.
 *
 * @throws MavenReportException if error
 *//*from  ww  w . ja  v  a  2s .c  o m*/
private void validateJavadocOptions() throws MavenReportException {
    // encoding
    if (StringUtils.isNotEmpty(getEncoding()) && !JavadocUtil.validateEncoding(getEncoding())) {
        throw new MavenReportException("Unsupported option <encoding/> '" + getEncoding() + "'");
    }

    // locale
    if (StringUtils.isNotEmpty(this.locale)) {
        StringTokenizer tokenizer = new StringTokenizer(this.locale, "_");
        final int maxTokens = 3;
        if (tokenizer.countTokens() > maxTokens) {
            throw new MavenReportException(
                    "Unsupported option <locale/> '" + this.locale + "', should be language_country_variant.");
        }

        Locale localeObject = null;
        if (tokenizer.hasMoreTokens()) {
            String language = tokenizer.nextToken().toLowerCase(Locale.ENGLISH);
            if (!Arrays.asList(Locale.getISOLanguages()).contains(language)) {
                throw new MavenReportException(
                        "Unsupported language '" + language + "' in option <locale/> '" + this.locale + "'");
            }
            localeObject = new Locale(language);

            if (tokenizer.hasMoreTokens()) {
                String country = tokenizer.nextToken().toUpperCase(Locale.ENGLISH);
                if (!Arrays.asList(Locale.getISOCountries()).contains(country)) {
                    throw new MavenReportException(
                            "Unsupported country '" + country + "' in option <locale/> '" + this.locale + "'");
                }
                localeObject = new Locale(language, country);

                if (tokenizer.hasMoreTokens()) {
                    String variant = tokenizer.nextToken();
                    localeObject = new Locale(language, country, variant);
                }
            }
        }

        if (localeObject == null) {
            throw new MavenReportException(
                    "Unsupported option <locale/> '" + this.locale + "', should be language_country_variant.");
        }

        this.locale = localeObject.toString();
        final List<Locale> availableLocalesList = Arrays.asList(Locale.getAvailableLocales());
        if (StringUtils.isNotEmpty(localeObject.getVariant()) && !availableLocalesList.contains(localeObject)) {
            StringBuilder sb = new StringBuilder();
            sb.append("Unsupported option <locale/> with variant '").append(this.locale);
            sb.append("'");

            localeObject = new Locale(localeObject.getLanguage(), localeObject.getCountry());
            this.locale = localeObject.toString();

            sb.append(", trying to use <locale/> without variant, i.e. '").append(this.locale).append("'");
            if (getLog().isWarnEnabled()) {
                getLog().warn(sb.toString());
            }
        }

        if (!availableLocalesList.contains(localeObject)) {
            throw new MavenReportException("Unsupported option <locale/> '" + this.locale + "'");
        }
    }
}