Save email message in db

Question

I try to save content of email in db,
Message msContent=message.getContent();
after
java.io.InputStream mesAsInputStream=(InputStream)msContent;
But I receive exception Exception in thread "main" java.lang.ClassCastException: java.lang.String cannot be cast to java.io.InputStream
I understand that there are 2 types of messages first one a simple string, and second a multipart.
But I would like save as object in db indipendent from type of message.
But for save in db it need cast to InputStream. Could you please me say how it can be done correct?

Answer 1

Hi,
The Message is an interface which extends another interface which is Part interface. Now the implementation of the Message ( the class implementation ) is not an InputStream
The best thing to do is to serialize the object as a stream of bytes and save it into the database as blob datatype
or you can send it into the ByteArrayOutputStream and convert the byte stream to string using a characterset which is pretty standard which you may change if you are using different characterset
public static void printToStream(Message m) throws IOException, MessagingException {
          ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
          m.writeTo(outputStream);
          String message = outputStream.toString("UTF-8"); // character encoding set
          // now save the message into the database
     }Regards.
Alan Mehio
London, UK