Android™
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
// 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."
}
}