(Java) Get FTP File Permissions

Java example showing how to retrieve file permissions (via FTP) for each file in a remote directory.

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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[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkFtp2 ftp = new CkFtp2();

    // Set the various properties to establish the connection.
    ftp.put_Hostname("ftp.example.com");
    ftp.put_Username("login");
    ftp.put_Password("password");

    // If SSL/TLS is required..
    // See http://www.cknotes.com/determining-ftp2-connection-settings/ 
    // for more information.
    ftp.put_AuthTls(true);
    ftp.put_PassiveUseHostAddr(true);

    // Connect to the FTP server:
    boolean success = ftp.ConnectOnly();
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // Authenticate with the FTP server.
    success = ftp.LoginAfterConnectOnly();
    if (success != true) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // To get file permissions in UNIX format, disallow MSLD:
    ftp.put_AllowMlsd(false);

    // To get file and sub-directory information, simply
    // loop from 0 to ftp.GetDirCount() - 1
    int i = 0;
    int n = ftp.GetDirCount();
    if (n < 0) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // Show the type of permissions information that is available.
    // The two most common types are "mlsd" and "unix".  See the
    // online reference documentation for more information.
    if (n > 0) {
        System.out.println("The permissions format is: " + ftp.getPermType(0));
        }

    while (i < n) {

        // Display the permissions and filename
        System.out.println(ftp.getPermissions(i) + " " + ftp.getFilename(i));

        i = i+1;
        }

    // Assuming MLSD was possible, let's see the file permissions in MLSD format:
    ftp.put_AllowMlsd(true);

    // Clear the directory cache so we're forced to re-fetch the directory listing:
    ftp.ClearDirCache();

    n = ftp.GetDirCount();
    if (n < 0) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // Show the type of permissions information that is available.
    // The two most common types are "mlsd" and "unix".  See the
    // online reference documentation for more information.
    if (n > 0) {
        System.out.println("----");
        System.out.println("The permissions format is: " + ftp.getPermType(0));
        }

    i = 0;
    while (i < n) {

        // Display the permissions and filename
        System.out.println(ftp.getPermissions(i) + " " + ftp.getFilename(i));

        i = i+1;
        }

    success = ftp.Disconnect();
  }
}