Java

Check if File Exists

See more SFTP Examples

Demonstrates how to check to see if a file exists. Java

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[])
  {
    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();

    //  Connect to the SSH server.  
    String hostname = "sftp.example.com";
    int port = 22;
    success = sftp.Connect(hostname,port);
    if (success != true) {
        System.out.println(sftp.lastErrorText());
        return;
        }

    //  Authenticate with the SSH server.  Chilkat SFTP supports
    //  both password-based authenication as well as public-key
    //  authentication.  This example uses password authenication.
    success = sftp.AuthenticatePw("myLogin","myPassword");
    if (success != true) {
        System.out.println(sftp.lastErrorText());
        return;
        }

    //  After authenticating, the SFTP subsystem must be initialized:
    success = sftp.InitializeSftp();
    if (success != true) {
        System.out.println(sftp.lastErrorText());
        return;
        }

    //  Check to see if a file exists

    //  The return value is one of the following values:
    //  -1: Unable to check. Examine the LastErrorText to determine the reason for failure.
    //  0: File does not exist.
    //  1: The regular file exists.
    //  2: It exists, but it is a directory.
    //  3: It exists, but it is a symlink (only possible if followLinks is false)
    //  4: It exists, but it is a special filesystem entry type.
    //  5: It exists, but it is an unkown filesystem entry type.
    //  6: It exists, but it is an socket filesystem entry type.
    //  7: It exists, but it is an char device entry type.
    //  8: It exists, but it is an block device entry type.
    //  9: It exists, but it is an FIFO entry type.

    boolean followLinks = true;
    int status = sftp.FileExists("someDir/someFile.txt",followLinks);
    if (status < 0) {
        System.out.println(sftp.lastErrorText());
        return;
        }

    System.out.println("status = " + status);

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