/**
* Updates the headers of this part, based on the content.
*
* @exception IllegalWriteException if the underlying implementation does not support modification
* @exception IllegalStateException if this body part is obtained from a READ_ONLY folder
*/
protected void updateHeaders() throws MessagingException {
if (getDataHandler() != null) {
try {
String contentType = dh.getContentType();
ContentType ct = new ContentType(contentType);
if (ct.match("multipart/*")) {
MimeMultipart mmp = (MimeMultipart) dh.getContent();
mmp.updateHeaders();
} else if (ct.match("message/rfc822")) {
} else {
// Update Content-Transfer-Encoding
if (getHeader(CONTENT_TRANSFER_ENCODING_NAME) == null) {
setHeader(CONTENT_TRANSFER_ENCODING_NAME, MimeUtility.getEncoding(dh));
}
}
// Update Content-Type if nonexistent,
// and Content-Type "name" with Content-Disposition "filename"
// parameter(see setFilename())
if (getHeader(CONTENT_TYPE_NAME) == null) {
String disposition = getHeader(CONTENT_DISPOSITION_NAME, null);
if (disposition != null) {
ContentDisposition cd = new ContentDisposition(disposition);
String filename = cd.getParameter("filename");
if (filename != null) {
ct.setParameter("name", filename);
contentType = ct.toString();
}
}
setHeader(CONTENT_TYPE_NAME, contentType);
}
} catch (IOException e) {
throw new MessagingException("I/O error", e);
}
}
}
