Android™

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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// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    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) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    success = ftp.ChangeRemoteDir("public_html");
    if (success == false) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

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

    Log.i(TAG, "Renamed and moved.");

    success = ftp.Disconnect();
    if (success == false) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}