/** Returns the value of the Content-Transfer-Encoding header field. */
public String getEncoding() throws MessagingException {
String encoding = getHeader(CONTENT_TRANSFER_ENCODING_NAME, null);
if (encoding != null) {
encoding = encoding.trim();
if (encoding.equalsIgnoreCase("7bit")
|| encoding.equalsIgnoreCase("8bit")
|| encoding.equalsIgnoreCase("quoted-printable")
|| encoding.equalsIgnoreCase("base64")) {
return encoding;
}
HeaderTokenizer ht = new HeaderTokenizer(encoding, HeaderTokenizer.MIME);
for (boolean done = false; !done; ) {
HeaderTokenizer.Token token = ht.next();
switch (token.getType()) {
case HeaderTokenizer.Token.EOF:
done = true;
break;
case HeaderTokenizer.Token.ATOM:
return token.getValue();
}
}
return encoding;
}
return null;
}
/**
* Constructor that takes a Content-Type string. The String is parsed into its constituents:
* primaryType, subType and parameters. A ParseException is thrown if the parse fails.
*
* @param s the Content-Type string.
* @exception ParseException if the parse fails.
*/
public ContentType(String s) throws ParseException {
HeaderTokenizer h = new HeaderTokenizer(s, HeaderTokenizer.MIME);
HeaderTokenizer.Token tk;
// First "type" ..
tk = h.next();
if (tk.getType() != HeaderTokenizer.Token.ATOM) throw new ParseException();
primaryType = tk.getValue();
// The '/' separator ..
tk = h.next();
if ((char) tk.getType() != '/') throw new ParseException();
// Then "subType" ..
tk = h.next();
if (tk.getType() != HeaderTokenizer.Token.ATOM) throw new ParseException();
subType = tk.getValue();
// Finally parameters ..
String rem = h.getRemainder();
if (rem != null) list = new ParameterList(rem);
}
/**
* Returns the languages specified in the Content-Language header of this part, as defined by RFC
* 1766. This method returns <code>null</code> if this header is not available.
*/
public String[] getContentLanguage() throws MessagingException {
String header = getHeader(CONTENT_LANGUAGE_NAME, null);
if (header != null) {
HeaderTokenizer ht = new HeaderTokenizer(header, HeaderTokenizer.MIME);
ArrayList acc = new ArrayList();
for (boolean done = false; !done; ) {
HeaderTokenizer.Token token = ht.next();
switch (token.getType()) {
case HeaderTokenizer.Token.EOF:
done = true;
break;
case HeaderTokenizer.Token.ATOM:
acc.add(token.getValue());
break;
}
}
if (acc.size() > 0) {
String[] languages = new String[acc.size()];
acc.toArray(languages);
return languages;
}
}
return null;
}
