(Android™) SFTP Fsync -- Flush an Open File on the Server

Demonstrates how to flush the contents of an open file on the server. This example only works for servers that implement the fsync@openssh.com extension.

Note: This example requires Chilkat v9.5.0.71 or later.

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

    CkSFtp sftp = new CkSFtp();

    // Pass a domain or IP address..
    boolean success = sftp.Connect("my-sftp-server.com",22);
    if (success == true) {
        success = sftp.AuthenticatePw("mySFtpLogin","mySFtpPassword");
        }

    if (success == true) {
        success = sftp.InitializeSftp();
        }

    if (success != true) {
        Log.i(TAG, sftp.lastErrorText());
        return;
        }

    // Open a file on the server for writing.
    String handle = sftp.openFile("myTest.txt","writeOnly","createTruncate");
    if (sftp.get_LastMethodSuccess() != true) {
        Log.i(TAG, sftp.lastErrorText());
        return;
        }

    // Write some text to the file:
    success = sftp.WriteFileText(handle,"ansi","abcdefghijklmnopqrstuvwxyz");
    if (success != true) {
        Log.i(TAG, sftp.lastErrorText());
        return;
        }

    // Make sure the server flushes what we wrote to the disk..
    // (this is requires a server that implements the fsync@openssh.com SFTP protocol extension)
    success = sftp.Fsync(handle);
    if (success != true) {
        Log.i(TAG, sftp.lastErrorText());
        return;
        }

    // ....
    // ....

    success = sftp.WriteFileText(handle,"ansi","ABCDEFGHIJKLMNOPQRSTUVWXYZ");
    if (success != true) {
        Log.i(TAG, sftp.lastErrorText());
        return;
        }

    // Close the file.
    success = sftp.CloseHandle(handle);
    if (success != true) {
        Log.i(TAG, sftp.lastErrorText());
        return;
        }

    Log.i(TAG, "Success.");

  }

  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."
  }
}