@Override
public Object unmarshal(Exchange exchange, InputStream stream)
throws IOException, MessagingException {
MimeBodyPart mimeMessage;
String contentType;
Message camelMessage;
Object content = null;
if (headersInline) {
mimeMessage = new MimeBodyPart(stream);
camelMessage = exchange.getOut();
MessageHelper.copyHeaders(exchange.getIn(), camelMessage, true);
contentType = mimeMessage.getHeader(CONTENT_TYPE, null);
// write the MIME headers not generated by javamail as Camel headers
Enumeration<?> headersEnum = mimeMessage.getNonMatchingHeaders(STANDARD_HEADERS);
while (headersEnum.hasMoreElements()) {
Object ho = headersEnum.nextElement();
if (ho instanceof Header) {
Header header = (Header) ho;
camelMessage.setHeader(header.getName(), header.getValue());
}
}
} else {
// check if this a multipart at all. Otherwise do nothing
contentType = exchange.getIn().getHeader(CONTENT_TYPE, String.class);
if (contentType == null) {
return stream;
}
try {
ContentType ct = new ContentType(contentType);
if (!ct.match("multipart/*")) {
return stream;
}
} catch (ParseException e) {
LOG.warn("Invalid Content-Type " + contentType + " ignored");
return stream;
}
camelMessage = exchange.getOut();
MessageHelper.copyHeaders(exchange.getIn(), camelMessage, true);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
IOHelper.copyAndCloseInput(stream, bos);
InternetHeaders headers = new InternetHeaders();
extractHeader(CONTENT_TYPE, camelMessage, headers);
extractHeader(MIME_VERSION, camelMessage, headers);
mimeMessage = new MimeBodyPart(headers, bos.toByteArray());
bos.close();
}
DataHandler dh;
try {
dh = mimeMessage.getDataHandler();
if (dh != null) {
content = dh.getContent();
contentType = dh.getContentType();
}
} catch (MessagingException e) {
LOG.warn("cannot parse message, no unmarshalling done");
}
if (content instanceof MimeMultipart) {
MimeMultipart mp = (MimeMultipart) content;
content = mp.getBodyPart(0);
for (int i = 1; i < mp.getCount(); i++) {
BodyPart bp = mp.getBodyPart(i);
DefaultAttachment camelAttachment = new DefaultAttachment(bp.getDataHandler());
@SuppressWarnings("unchecked")
Enumeration<Header> headers = bp.getAllHeaders();
while (headers.hasMoreElements()) {
Header header = headers.nextElement();
camelAttachment.addHeader(header.getName(), header.getValue());
}
camelMessage.addAttachmentObject(getAttachmentKey(bp), camelAttachment);
}
}
if (content instanceof BodyPart) {
BodyPart bp = (BodyPart) content;
camelMessage.setBody(bp.getInputStream());
contentType = bp.getContentType();
if (contentType != null && !DEFAULT_CONTENT_TYPE.equals(contentType)) {
camelMessage.setHeader(CONTENT_TYPE, contentType);
ContentType ct = new ContentType(contentType);
String charset = ct.getParameter("charset");
if (charset != null) {
camelMessage.setHeader(Exchange.CONTENT_ENCODING, MimeUtility.javaCharset(charset));
}
}
} else {
// If we find no body part, try to leave the message alone
LOG.info("no MIME part found");
}
return camelMessage;
}
