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(Java) IMAP Get List of Flags

When a mailbox is selected, the server response includes a list of flags:

The FLAGS response occurs as a result of a SELECT or EXAMINE command. The flag parenthesized list identifies the flags (at a minimum, the system-defined flags) that are applicable for this mailbox. Flags other than the system flags can also exist, depending on server implementation.
This example demonstrates how to capture the SELECT (or EXAMINE) response, and parse the list of flags.

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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[])
  {
    CkImap imap = new CkImap();

    //  This example assumes Chilkat Imap to have been previously unlocked.
    //  See Unlock Imap for sample code.

    //  Connect to an IMAP server.
    //  Use TLS
    imap.put_Ssl(true);
    imap.put_Port(993);
    boolean success = imap.Connect("MY-IMAP-DOMAIN");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    //  Login
    success = imap.Login("MY-IMAP-LOGIN","MY-IMAP-PASSWORD");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    //  Select an IMAP mailbox
    success = imap.SelectMailbox("INBOX");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    //  The LastResponse property contains the full response of the last command.
    String selectResponse = imap.lastResponse();
    System.out.println(selectResponse);

    //  For example, on GMail, the SELECT response looks like this:

    //  	* FLAGS (\Answered \Flagged \Draft \Deleted \Seen $Forwarded $NotPhishing $Phishing $label1 $label2 $label3 $label4 $label5 Junk NonJunk)
    //  	* OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen $Forwarded $NotPhishing $Phishing $label1 $label2 $label3 $label4 $label5 Junk NonJunk \*)] Flags permitted.
    //  	* OK [UIDVALIDITY 3] UIDs valid.
    //  	* 46 EXISTS
    //  	* 0 RECENT
    //  	* OK [UIDNEXT 4147] Predicted next UID.
    //  	* OK [HIGHESTMODSEQ 402971]
    //  	aaac OK [READ-WRITE] INBOX selected. (Success)

    //  The goal of this example is to capture the list of FLAGS.
    //  All IMAP servers will respond with the list of flags in a SPACE separated list enclosed in parentheses.

    CkStringBuilder sbResponse = new CkStringBuilder();
    sbResponse.Append(selectResponse);

    //  Get just the list of flags:
    CkStringBuilder sbFlagList = new CkStringBuilder();
    sbFlagList.Append(sbResponse.getAfterBetween("* FLAGS","(",")"));
    System.out.println(sbFlagList.getAsString());

    //  sbFlagList contains this:
    // 
    //      \Answered \Flagged \Draft \Deleted \Seen $Forwarded $NotPhishing $Phishing $label1 $label2 $label3 $label4 $label5 Junk NonJunk
    // 

    //  Make sure no more than one SPACE char in a row exists.
    sbFlagList.TrimInsideSpaces();
    //  Modify sbFlagList to one flag per line
    int numReplaced = sbFlagList.Replace(" ","\r\n");

    //  Load a StringTable with the flag names.
    CkStringTable flagsTable = new CkStringTable();
    flagsTable.AppendFromSb(sbFlagList);

    //  Iterate over the individual flag names:
    int i = 0;
    while (i < flagsTable.get_Count()) {
        System.out.println(i + ": " + flagsTable.stringAt(i));
        i = i+1;
        }

    //  The output is:
    // 
    //  	0: \Answered
    //  	1: \Flagged
    //  	2: \Draft
    //  	3: \Deleted
    //  	4: \Seen
    //  	5: $Forwarded
    //  	6: $NotPhishing
    //  	7: $Phishing
    //  	8: $label1
    //  	9: $label2
    //  	10: $label3
    //  	11: $label4
    //  	12: $label5
    //  	13: Junk
    //  	14: NonJunk
    // 
  }
}

 

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