Example usage for javax.mail.internet MimeMultipart setPreamble

Introduction

In this page you can find the example usage for javax.mail.internet MimeMultipart setPreamble.

Prototype

public synchronized void setPreamble(String preamble) throws MessagingException 

Source Link

Document

Set the preamble text to be included before the first body part.

Usage

From source file:com.googlecode.ddom.mime.JavaMailTest.java

private void test(boolean preamble) throws Exception {
    MimeMultipart multipart = new MimeMultipart();

    MimeBodyPart bodyPart1 = new MimeBodyPart();
    StringBuilder buffer = new StringBuilder();
    for (int i = 0; i < 1000; i++) {
        buffer.append('(');
        buffer.append(i);/*from  w  ww  . ja  va 2 s  . c  o  m*/
        buffer.append(')');
    }
    String content1 = buffer.toString();
    bodyPart1
            .setDataHandler(new DataHandler(new ByteArrayDataSource(content1.getBytes("UTF-8"), "text/plain")));
    Map<String, String> headers1 = new HashMap<String, String>();
    headers1.put("Content-ID", "<1@example.com>");
    headers1.put("Content-Type", "text/plain; charset=UTF-8");
    setHeaders(bodyPart1, headers1);
    multipart.addBodyPart(bodyPart1);

    MimeBodyPart bodyPart2 = new MimeBodyPart();
    byte[] content2 = new byte[10000];
    new Random().nextBytes(content2);
    bodyPart2.setDataHandler(new DataHandler(new ByteArrayDataSource(content2, "application/octet-stream")));
    Map<String, String> headers2 = new HashMap<String, String>();
    headers2.put("Content-ID", "<2@example.com>");
    headers2.put("Content-Type", "application/octet-stream");
    setHeaders(bodyPart2, headers2);
    multipart.addBodyPart(bodyPart2);

    if (preamble) {
        multipart.setPreamble("This is a MIME multipart.");
    }

    String boundary = new ContentType(multipart.getContentType()).getParameter("boundary");
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    multipart.writeTo(baos);
    MultipartReader mpr = new MultipartReader(new ByteArrayInputStream(baos.toByteArray()), boundary);
    assertTrue(mpr.nextPart());
    assertEquals(headers1, readHeaders(mpr));
    assertEquals(content1, IOUtils.toString(mpr.getContent(), "UTF-8"));
    assertTrue(mpr.nextPart());
    assertEquals(headers2, readHeaders(mpr));
    assertArrayEquals(content2, IOUtils.toByteArray(mpr.getContent()));
    assertFalse(mpr.nextPart());
}

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