ninja-core/src/main/java/ninja/i18n/MessagesImpl.java
private Configuration getLanguageConfigurationForLocale(Optional<String> language) {

        // if language is null we return the default language.
        if (!language.isPresent()) {
            return langToKeyAndValuesMapping.get("");
        }

        // Check if we get a registered mapping for the language input string.
        // At that point the language may be either language-country or only country.
        // extract multiple languages from Accept-Language header
        String[] languages = language.get().split(",");
        for (String l: languages){
            l = l.trim();
            // Ignore the relative quality factor in Accept-Language header
            if (l.contains(";")){
                l = l.split(";")[0];
            }
            Configuration configuration = langToKeyAndValuesMapping.get(l);
            if (configuration != null) {
                return configuration;
            }

            // If we got a two part language code like "en-US" we split it and
            // search only for the language "en".
            if (l.contains("-")) {
                String[] array = l.split("-");
                String languageWithoutCountry = array[0];
                // Modify country code to upper case for IE and Firefox
                if(array.length > 1){
                    String country = array[1];
                    String languageWithUpperCaseCountry = languageWithoutCountry + "-" + country.toUpperCase();
                    configuration = langToKeyAndValuesMapping.get(languageWithUpperCaseCountry);
                    if (configuration != null) {
                        return configuration;
                    }
                }
                configuration = langToKeyAndValuesMapping
                        .get(languageWithoutCountry);

                if (configuration != null) {

                    return configuration;
                }

            }
        }

        // Oops. Nothing found. We return the default language (by convention guaranteed to work).
        return langToKeyAndValuesMapping.get("");

    }
private Configuration getLanguageConfigurationForLocale(Optional<String> language) {

        // if language is null we return the default language.
        if (!language.isPresent()) {
            return langToKeyAndValuesMapping.get("");
        }

        // Check if we get a registered mapping for the language input string.
        // At that point the language may be either language-country or only country.
        // extract multiple languages from Accept-Language header
        String[] languages = language.get().split(",");
        for (String l: languages){
            l = l.trim();
            // Ignore the relative quality factor in Accept-Language header
            if (l.contains(";")){
                l = l.split(";")[0];
            }
            Configuration configuration = langToKeyAndValuesMapping.get(l);
            if (configuration != null) {
                return configuration;
            }

            // If we got a two part language code like "en-US" we split it and
            // search only for the language "en".
            if (l.contains("-")) {
                String[] array = l.split("-");
                String languageWithoutCountry = array[0];
                // Modify country code to upper case for IE and Firefox
                if(array.length > 1){
                    String country = array[1];
                    String languageWithUpperCaseCountry = languageWithoutCountry + "-" + country.toUpperCase();
                    configuration = langToKeyAndValuesMapping.get(languageWithUpperCaseCountry);
                    if (configuration != null) {
                        return configuration;
                    }
                }
                configuration = langToKeyAndValuesMapping
                        .get(languageWithoutCountry);

                if (configuration != null) {

                    return configuration;
                }

            }
        }

        // Oops. Nothing found. We return the default language (by convention guaranteed to work).
        return langToKeyAndValuesMapping.get("");

    }
private Configuration getLanguageConfigurationForLocale ( Optional < String > language ) { // if language is null we return the default language. if ( ! language . isPresent ( ) ) { return langToKeyAndValuesMapping . get ( "" ) ; } // Check if we get a registered mapping for the language input string. // At that point the language may be either language-country or only country. // extract multiple languages from Accept-Language header String [ ] languages = language . get ( ) . split ( "," ) ; for ( String l : languages ) { l = l . trim ( ) ; // Ignore the relative quality factor in Accept-Language header if ( l . contains ( ";" ) ) { l = l . split ( ";" ) [ 0 ] ; } Configuration configuration = langToKeyAndValuesMapping . get ( l ) ; if ( configuration != null ) { return configuration ; } // If we got a two part language code like "en-US" we split it and // search only for the language "en". if ( l . contains ( "-" ) ) { String [ ] array = l . split ( "-" ) ; String languageWithoutCountry = array [ 0 ] ; // Modify country code to upper case for IE and Firefox if ( array . length > 1 ) { String country = array [ 1 ] ; String languageWithUpperCaseCountry = languageWithoutCountry + "-" + country . toUpperCase ( ) ; configuration = langToKeyAndValuesMapping . get ( languageWithUpperCaseCountry ) ; if ( configuration != null ) { return configuration ; } } configuration = langToKeyAndValuesMapping . get ( languageWithoutCountry ) ; if ( configuration != null ) { return configuration ; } } } // Oops. Nothing found. We return the default language (by convention guaranteed to work). return langToKeyAndValuesMapping . get ( "" ) ; }
Retrieves the matching language file from an arbitrary one or two part
locale String ("en-US", or "en" or "de"...).
<p>

@param language
A two or one letter language code such as "en-US" or "en" or
"en-US,en;q=0.8,de;q=0.6".
@return The matching configuration from the hashmap. Or the default
mapping if no one has been found.
Retrieves the matching language file from an arbitrary one or two part locale String ( en - US or en or de ... ) . <p >