Java

Rename or Move a Remote FTP File

Demonstrates the Chilkat Ftp2.RenameRemoteFile method, which renames or moves a remote file or directory using the FTP RNFR/RNTO sequence. The first argument is the existing path and the second is the new path.

Background: Rename and move are the same RNFR/RNTO operation: changing only the final path component renames in place, while including directory components in the new path relocates the item within the same server. It is a metadata operation, so even a large file moves instantly — but both paths must be on the same server, and moving onto an existing target may fail depending on the server.

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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 Ftp2.RenameRemoteFile method, which renames or moves a remote file or
    //  directory using the FTP RNFR/RNTO sequence.  The 1st argument is the existing path and the 2nd
    //  is the new path.

    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;
        }

    //  Rename a file in place.
    success = ftp.RenameRemoteFile("report.pdf","report_final.pdf");
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    //  Include directory components in the new path to move the item within the same server.
    success = ftp.RenameRemoteFile("report_final.pdf","archive/report_final.pdf");
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    System.out.println("Renamed and moved.");

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