Java

Get a Digest Message as an Email Object

Demonstrates the Chilkat Email.GetDigestEmail method, which copies the Nth digest email contained within a multipart/digest into another Email object. The first digest is at index 0; the NumDigests property gives the count. This example loads a digest email and lists each bundled message's subject.

Background: A multipart/digest packs many separate emails into one carrier message — historically used by mailing lists to send a single daily bundle of that day's posts. GetDigestEmail unpacks each member into a full Email object so it can be read or processed individually. This differs from GetAttachedEmail, which extracts messages attached to an ordinary email rather than the members of a digest.

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Java

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[])
  {
    boolean success = false;

    //  Demonstrates the GetDigestEmail method, which copies the Nth digest email contained
    //  within a multipart/digest into another Email object.  The first digest is at index 0;
    //  use the NumDigests property for the count.

    CkEmail email = new CkEmail();

    success = email.LoadEml("qa_data/eml/digest.eml");
    if (success == false) {
        System.out.println(email.lastErrorText());
        return;
        }

    int n = email.get_NumDigests();
    System.out.println("NumDigests = " + n);

    //  Retrieve each bundled message as its own Email object.
    CkEmail digestEmail = new CkEmail();
    int i;
    for (i = 0; i <= n - 1; i++) {
        success = email.GetDigestEmail(i,digestEmail);
        System.out.println("Digest " + i + " subject: " + digestEmail.subject());
        }

    //  Note: The path "qa_data/..." is a relative local filesystem path,
    //  relative to the current working directory of the running application.
  }
}