AcceptLanguagepublic class AcceptLanguage extends Object | Util to process the "Accept-Language" header. Used by facade to implement
getLocale() and by StaticInterceptor.
Not optimized - it's very slow. |
| Methods Summary |
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| private static void | extractLocales(java.util.Hashtable languages, java.util.Vector q, java.util.Vector l)
// XXX We will need to order by q value Vector in the Future ?
Enumeration e = q.elements();
while (e.hasMoreElements()) {
Vector v =
(Vector)languages.get(((Double)e.nextElement()).toString());
Enumeration le = v.elements();
while (le.hasMoreElements()) {
String language = (String)le.nextElement();
String country = "";
int countryIndex = language.indexOf("-");
if (countryIndex > -1) {
country = language.substring(countryIndex + 1).trim();
language = language.substring(0, countryIndex).trim();
}
l.addElement(new Locale(language, country));
}
}
| | public static java.util.Locale | getLocale(java.lang.String acceptLanguage)
if( acceptLanguage == null ) return Locale.getDefault();
Hashtable<String,Vector<String>> languages =
new Hashtable<String,Vector<String>>();
Vector<Double> quality = new Vector<Double>();
processAcceptLanguage(acceptLanguage, languages, quality);
if (languages.size() == 0) return Locale.getDefault();
Vector<Locale> l = new Vector<Locale>();
extractLocales( languages,quality, l);
return (Locale)l.elementAt(0);
| | public static java.util.Enumeration | getLocales(java.lang.String acceptLanguage)
// Short circuit with an empty enumeration if null header
if (acceptLanguage == null) {
Vector<Locale> v = new Vector<Locale>();
v.addElement(Locale.getDefault());
return v.elements();
}
Hashtable<String,Vector<String>> languages =
new Hashtable<String,Vector<String>>();
Vector<Double> quality=new Vector<Double>();
processAcceptLanguage(acceptLanguage, languages , quality);
if (languages.size() == 0) {
Vector<Locale> v = new Vector<Locale>();
v.addElement(Locale.getDefault());
return v.elements();
}
Vector<Locale> l = new Vector<Locale>();
extractLocales( languages, quality , l);
return l.elements();
| | private static void | processAcceptLanguage(java.lang.String acceptLanguage, java.util.Hashtable languages, java.util.Vector q)
StringTokenizer languageTokenizer =
new StringTokenizer(acceptLanguage, ",");
while (languageTokenizer.hasMoreTokens()) {
String language = languageTokenizer.nextToken().trim();
int qValueIndex = language.indexOf(';");
int qIndex = language.indexOf('q");
int equalIndex = language.indexOf('=");
Double qValue = new Double(1);
if (qValueIndex > -1 &&
qValueIndex < qIndex &&
qIndex < equalIndex) {
String qValueStr = language.substring(qValueIndex + 1);
language = language.substring(0, qValueIndex);
qValueStr = qValueStr.trim().toLowerCase();
qValueIndex = qValueStr.indexOf('=");
qValue = new Double(0);
if (qValueStr.startsWith("q") &&
qValueIndex > -1) {
qValueStr = qValueStr.substring(qValueIndex + 1);
try {
qValue = new Double(qValueStr.trim());
} catch (NumberFormatException nfe) {
}
}
}
// XXX
// may need to handle "*" at some point in time
if (! language.equals("*")) {
String key = qValue.toString();
Vector<String> v;
if (languages.containsKey(key)) {
v = languages.get(key) ;
} else {
v= new Vector<String>();
q.addElement(qValue);
}
v.addElement(language);
languages.put(key, v);
}
}
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