Android™

SFTP Fsync -- Flush an Open File on the Server

See more SFTP Examples

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.

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;

    // 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..
    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."
  }
}