EncodingInfo eInfo = null;
if (encoding == null) {
if((eInfo = (EncodingInfo)_encodings.get(DEFAULT_ENCODING)) != null)
return eInfo;
eInfo = new EncodingInfo(EncodingMap.getJava2IANAMapping(DEFAULT_ENCODING), DEFAULT_ENCODING, LAST_PRINTABLE_UNICODE);
_encodings.put(DEFAULT_ENCODING, eInfo);
return eInfo;
}
// need to convert it to upper case:
encoding = encoding.toUpperCase(Locale.ENGLISH);
String jName = EncodingMap.getIANA2JavaMapping(encoding);
if (jName == null) {
// see if the encoding passed in is a Java encoding name.
if (allowJavaNames) {
EncodingInfo.testJavaEncodingName(encoding);
if ((eInfo = (EncodingInfo)_encodings.get(encoding)) != null)
return eInfo;
// is it known to be unicode-compliant?
int i = 0;
for(; i<UNICODE_ENCODINGS.length; i++) {
if(UNICODE_ENCODINGS[i].equalsIgnoreCase(encoding)) {
eInfo = new EncodingInfo(EncodingMap.getJava2IANAMapping(encoding), encoding, LAST_PRINTABLE_UNICODE);
break;
}
}
if(i == UNICODE_ENCODINGS.length) {
eInfo = new EncodingInfo(EncodingMap.getJava2IANAMapping(encoding), encoding, DEFAULT_LAST_PRINTABLE);
}
_encodings.put(encoding, eInfo);
return eInfo;
}
throw new UnsupportedEncodingException(encoding);
}
if ((eInfo = (EncodingInfo)_encodings.get(jName)) != null)
return eInfo;
// have to create one...
// is it known to be unicode-compliant?
int i=0;
for(; i<UNICODE_ENCODINGS.length; i++) {
if(UNICODE_ENCODINGS[i].equalsIgnoreCase(jName)) {
eInfo = new EncodingInfo(encoding, jName, LAST_PRINTABLE_UNICODE);
break;
}
}
if(i == UNICODE_ENCODINGS.length) {
eInfo = new EncodingInfo(encoding, jName, DEFAULT_LAST_PRINTABLE);
}
_encodings.put(jName, eInfo);
return eInfo;
