ftpfs.ftp

Interface FtpObserver

public interface FtpObserver

The class that implement this interface have the ability to monitor the progress of upload and download files in the FtpBean.
You can pass the object which implement this interface to some put/get methods of the FtpBean object. So that when there are any bytes read from the server, the byteRead(int) method of the object you passed is invoked. And the byteWrite(int) method is invoked when any bytes is written to the server side.
A sample code is like this:

 // Begin, this class implements the FtpObserver interface
 class Sample implements FtpObserver
 {

     // Skip constructors and many things for simple

     public void download()
     {
         try 
         {
             // Pass this object which implements FtpObserver interface to the method
             ftpbean.getBinaryFile("remotefile", "localfile", this);
         } catch(Exception e)
         {
             System.out.println("Exception!!!");
         }
     }

     public void byteRead(int bytes)
     {
         System.out.println(bytes + " new bytes are read.");
     }
 
     public void byteWrite(int bytes)
     {
         System.out.println(bytes + " new bytes are written to server.");
     }
 }
 

Method Summary

Modifier and Type	Method and Description
boolean	byteRead(int bytes) This method is called every time new bytes are read in downloading process.
boolean	byteWrite(int bytes) This method is called every time new bytes is written to the ftp server in uploading process.

Method Detail

byteRead

boolean byteRead(int bytes)

This method is called every time new bytes are read in downloading process.

Parameters:

bytes - The number of new bytes read from the server.

Returns:

true if the process should continue reading, false indicates cancel and the process should stop

byteWrite

boolean byteWrite(int bytes)

This method is called every time new bytes is written to the ftp server in uploading process.

Parameters:

bytes - The number of new bytes write to the server.