(Java) Parsing a Multipart/Digest Email

This example demonstrates how to parse a multipart/digest email. An email parsed by this sample could have a MIME structure as follows:

multipart/mixed
    text/plain
    text/plain
    multipart/digest
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
    text/plain

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // Note: This example requires Chilkat v9.5.0.66 or greater.

    String emlPath = "qa_data/eml/multipart_digest.eml";

    CkEmail email = new CkEmail();

    // For this example, we'll load the email from a .eml.
    // The email could alternatively be loaded as a result of downloading from an IMAP or POP3 server..

    boolean success = email.LoadEml(emlPath);
    if (success != true) {
        System.out.println(email.lastErrorText());
        return;
        }

    int numDigests = email.get_NumDigests();
    System.out.println("num digests = " + numDigests);

    int i = 0;
    while (i < numDigests) {
        CkEmail eDigest = email.GetDigest(i);
        System.out.println(i + ":" + eDigest.fromAddress() + ", " + eDigest.subject());
        String m = eDigest.getHeaderField("Message");
        if (eDigest.get_LastMethodSuccess() == true) {
            System.out.println("    Message = " + m);
            }

        i = i+1;
        }
  }
}