(Android™) Restart/Resume FTP Upload

Demonstrates how to restart / resume an FTP upload.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// 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);

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkFtp2 ftp = new CkFtp2();

    ftp.put_Hostname("ftp.example.com");
    ftp.put_Username("login");
    ftp.put_Password("password");

    // Connect and login to the FTP server.
    boolean success = ftp.Connect();
    if (success != true) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    // Change to the remote directory where the file will be uploaded.
    success = ftp.ChangeRemoteDir("temp");
    if (success != true) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    // In this example, assume that a previous FTP upload failed,
    // and the incomplete file (bigFile.zip) exists on the FTP server.
    // You only need to set the RestartNext property to resume
    // the upload.  When RestartNext is set, the next call
    // to PutFile (or PutFileFromBinaryData, PutFileFromTextData)
    // will automatically resume the upload from the point of failure.
    // (The way it works is that the FTP component sends a "SIZE"
    // command to the FTP server to find out how many bytes of
    // the file already exist on the server.  It then begins
    // uploading from that point.

    // Note: After PutFile is called, the RestartNext property
    // is automatically set to false.
    ftp.put_RestartNext(true);

    // Upload a file with restart.
    String localFilename = "bigFile.zip";
    String remoteFilename = "bigFile.zip";

    success = ftp.PutFile(localFilename,remoteFilename);
    if (success != true) {
        Log.i(TAG, ftp.lastErrorText());
        return;
        }

    success = ftp.Disconnect();

    Log.i(TAG, "File Uploaded!");

  }

  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."
  }
}