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Java

Sync a Single FTP Directory Down to Local

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Demonstrates the Chilkat Ftp2.SyncLocalDir method, which synchronizes files from the current remote directory into a local directory without descending into subdirectories. The first argument is the local root and the second is the download mode.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the single-directory form of SyncLocalTree, using the same mode numbers but touching only the top level. It is the right choice when subdirectories are irrelevant or handled separately — for instance pulling new files from one drop folder without recursing into archive subfolders that would waste time to scan.

Chilkat Java Downloads

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 Ftp2.SyncLocalDir method, which synchronizes files from the current remote
    //  directory into a local directory WITHOUT descending into subdirectories.  The 1st argument is
    //  the local root and the 2nd is the download mode.

    CkFtp2 ftp = new CkFtp2();

    ftp.put_Hostname("ftp.example.com");
    ftp.put_Username("myFtpLogin");

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    ftp.put_Password("myPassword");

    success = ftp.Connect();
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    success = ftp.ChangeRemoteDir("public_html");
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    //  This is the single-directory (non-recursive) form of SyncLocalTree; it uses the same modes.
    //    0 = all selected files
    //    1 = files missing locally
    //    2 = missing locally, or newer on the server
    //    3 = only files that exist locally and are newer on the server
    //    5 = missing locally, or a different size
    //    6 = missing, different size, or newer on the server
    //   99 = do not download; delete local... (see docs)

    int mode = 2;
    success = ftp.SyncLocalDir("qa_output/site",mode);
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    System.out.println("Remote directory synced to local (top level only).");

    success = ftp.Disconnect();
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }
  }
}