Example usage for javax.mail.internet MimeBodyPart getDataHandler

Introduction

In this page you can find the example usage for javax.mail.internet MimeBodyPart getDataHandler.

Prototype

@Override
public DataHandler getDataHandler() throws MessagingException 

Source Link

Document

Return a DataHandler for this body part's content.

Usage

From source file:se.inera.axel.shs.processor.ShsMessageMarshaller.java

public ShsMessage unmarshal(InputStream stream) throws IllegalMessageStructureException {
    log.trace("unmarshal(InputStream)");

    try {/* ww w .j  a  v a2 s  . c  om*/
        stream = SharedDeferredStream.toSharedInputStream(stream);
        MimeMessage mimeMessage = new MimeMessage(session, stream);
        Object msgContent = mimeMessage.getContent();

        if (!(msgContent instanceof MimeMultipart)) {
            throw new IllegalMessageStructureException(
                    "Expected a multipart mime message, got " + msgContent.getClass());
        }

        MimeMultipart multipart = (MimeMultipart) msgContent;

        if (multipart.getCount() < 2) {
            throw new IllegalMessageStructureException("SHS message must contain at least two mime bodyparts");
        }

        ShsMessage shsMessage = new ShsMessage();

        BodyPart labelPart = multipart.getBodyPart(0);
        if (!labelPart.isMimeType("text/xml") && !labelPart.isMimeType("text/plain")) {
            throw new IllegalMessageStructureException(
                    "First bodypart is not text/xml nor text/plain but was " + labelPart.getContentType());
        }

        ShsLabel label = shsLabelMarshaller.unmarshal((String) labelPart.getContent());

        shsMessage.setLabel(label);

        Content content = label.getContent();
        if (content == null) {
            throw new IllegalMessageStructureException("Label contains no content elements");
        }

        // this reads only as many mime body parts as there are content/data elements in the label
        int i = 1;
        for (Object o : content.getDataOrCompound()) {
            MimeBodyPart dp = (MimeBodyPart) multipart.getBodyPart(i);
            DataHandler dh = dp.getDataHandler();
            DataPart dataPart = new DataPart();
            dataPart.setDataHandler(new DataHandler(
                    new InputStreamDataSource(dh.getDataSource().getInputStream(), dh.getContentType())));

            dataPart.setContentType(dh.getContentType());

            String encoding = dp.getEncoding();
            if (encoding != null) {
                dataPart.setTransferEncoding(encoding);
            }

            dataPart.setFileName(dp.getFileName());

            if (o instanceof Data) {
                Data data = (Data) o;
                dataPart.setDataPartType(data.getDatapartType());
            } else if (o instanceof Compound) {
                continue;
            }
            shsMessage.addDataPart(dataPart);
            i++;
        }

        return shsMessage;

    } catch (Exception e) {
        if (e instanceof IllegalMessageStructureException) {
            throw (IllegalMessageStructureException) e;
        }

        throw new IllegalMessageStructureException(e);
    }
}

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