(Java) 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.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // 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) {
        System.out.println(sftp.lastErrorText());
        return;
        }

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

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

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

    success = sftp.WriteFileText(handle,"ansi","ABCDEFGHIJKLMNOPQRSTUVWXYZ");
    if (success != true) {
        System.out.println(sftp.lastErrorText());
        return;
        }

    // Close the file.
    success = sftp.CloseHandle(handle);
    if (success != true) {
        System.out.println(sftp.lastErrorText());
        return;
        }

    System.out.println("Success.");
  }
}