Example usage for javax.mail BodyPart writeTo

Introduction

In this page you can find the example usage for javax.mail BodyPart writeTo.

Prototype

public void writeTo(OutputStream os) throws IOException, MessagingException;

Source Link

Document

Output a bytestream for this Part.

Usage

From source file:mitm.common.security.smime.SMIMEUtils.java

public static void writeBodyPart(BodyPart bodyPart, OutputStream output, String defaultContentTransferEncoding)
        throws IOException, MessagingException {
    if (bodyPart instanceof MimeBodyPart) {
        MimeBodyPart mimeBodyPart = (MimeBodyPart) bodyPart;

        String[] contentTransferEncodings = bodyPart.getHeader("Content-Transfer-Encoding");

        String contentTransferEncoding = defaultContentTransferEncoding;

        if (contentTransferEncodings != null && contentTransferEncodings.length > 0) {
            contentTransferEncoding = contentTransferEncodings[0];
        }/*w  w w .  j  a va 2  s. co m*/

        /*
         * First try the raw input stream.
         * If message is created from a stream Javamail will return the raw stream. If
         * the message is created from 'scratch' getRawInputStream throws a
         * MessagingException. We will therefore first try the raw version and if
         * that fails we fallback on writeTo.
         */

        try {
            InputStream input = mimeBodyPart.getRawInputStream();

            Enumeration<?> lines = mimeBodyPart.getAllHeaderLines();

            /* step through all header lines */
            while (lines.hasMoreElements()) {
                String header = (String) lines.nextElement();

                output.write(MiscStringUtils.toAsciiBytes(header));
                output.write(MailUtils.CRLF_BYTES);
            }

            output.write(MailUtils.CRLF_BYTES);

            if (!contentTransferEncoding.equalsIgnoreCase("binary")) {
                output = new CRLFOutputStream(output);
            }

            IOUtils.copy(input, output);

            output.flush();
        } catch (MessagingException e) {
            /*
             * Fallback to writeTo
             */
            if (!contentTransferEncoding.equalsIgnoreCase("binary")) {
                output = new CRLFOutputStream(output);
            }

            bodyPart.writeTo(output);

            output.flush();
        }

    } else {
        if (!defaultContentTransferEncoding.equalsIgnoreCase("binary")) {
            output = new CRLFOutputStream(output);
        }

        bodyPart.writeTo(output);

        output.flush();
    }
}

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