Java

Get MessageSet IDs as a Compact String

Demonstrates the Chilkat MessageSet.ToCompactString method, which returns the unique identifiers in ascending order using compact IMAP message-set syntax, collapsing consecutive runs into inclusive ranges. It takes no arguments. This example loads 1,2,3,4,5,8,9,10 and prints the compact form 1:5,8:10.

Background: The result is canonical for the current set — unique, sorted, and range-compacted — which is the compact notation IMAP servers expect for message-set arguments. It is the inverse of FromCompactString, so the two round-trip: a set emitted here can be reloaded later. The string contains only numbers and omits the HasUids setting, so track UID-vs-sequence separately.

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import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.MessageSet;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the MessageSet.ToCompactString method, which returns the unique identifiers in
        // ascending order using compact IMAP message-set syntax, with consecutive runs collapsed into
        // inclusive ranges.  It takes no arguments.

        MessageSet msgSet = new MessageSet();

        // Load a set of individual identifiers.
        try {
            msgSet.fromCompactString("1,2,3,4,5,8,9,10");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Get the canonical compact representation.
        String compact = msgSet.toCompactString();
        System.out.println(compact);
        // Output: 1:5,8:10
    }
}