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Android™

Sync a Local Tree Up with Preview and Traversal Control

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Demonstrates the Chilkat Ftp2.SyncRemoteTree2 method, which uploads a local tree to the current remote directory with extra controls. The arguments are the local root, the upload mode, whether to descend into subdirectories, and whether to run preview-only. In preview mode the results are available via the SyncPreview property.

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: The preview flag is what makes this valuable: run it first to see exactly which files would be uploaded — without transferring anything — then run it again for real once the plan looks right. That dry-run step is a strong safeguard before a large or destructive-looking sync. The descend flag lets you limit the operation to the top level, and the mode is the same set of upload rules as SyncRemoteTree.

Chilkat Android™ Downloads

Android™
// 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.SyncRemoteTree2 method, which uploads a local tree to the current remote
    //  directory with extra traversal and preview controls.  The 1st argument is the local root, the
    //  2nd is the upload mode, the 3rd selects whether to descend into subdirectories, and the 4th
    //  selects preview-only (no actual transfers).

    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;
        }

    //    0 = all selected files
    //    1 = files missing on the server
    //    2 = missing, or newer locally
    //    3 = only files that exist remotely and are newer locally
    //    4 = missing, or a different size
    //    5 = missing, different size, or newer locally

    int mode = 5;

    //  Descend into subdirectories.
    boolean bDescend = true;

    //  Preview only: determine what WOULD be uploaded without transferring anything.  The results are
    //  available via the SyncPreview property.
    boolean bPreviewOnly = true;

    success = ftp.SyncRemoteTree2("qa_data/site",mode,bDescend,bPreviewOnly);
    if (success == false) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    //  SyncPreview lists the files that would be uploaded.
    Log.i(TAG, ftp.syncPreview());

    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."
  }
}