`/* * * Copyright (C) 2006 Enterprise Distributed Technologies Ltd * * www.enterprisedt.com */ import java.io.InputStream; import java.io.OutputStream; import java.io.File; import com.enterprisedt.net.ftp.FileTransferClient; import com.enterprisedt.util.debug.Level; import com.enterprisedt.util.debug.Logger; public class TransferUsingStreams { public static void main(String[] args) { // we want remote host, user name and password if (args.length < 3) { System.out .println("Usage: run remote-host username password"); System.exit(1); } // extract command-line arguments String host = args[0]; String username = args[1]; String password = args[2]; // set up logger so that we get some output Logger log = Logger.getLogger(TransferUsingStreams.class); Logger.setLevel(Level.INFO); FileTransferClient ftp = null; try { // create client log.info("Creating FTP client"); ftp = new FileTransferClient(); // set remote host ftp.setRemoteHost(host); ftp.setUserName(username); ftp.setPassword(password); // connect to the server log.info("Connecting to server " + host); ftp.connect(); log.info("Connected and logged in to server " + host); // byte array transfers String s1 = "Hello world"; log.info("Putting s1"); OutputStream out = ftp.uploadStream("Hello.txt"); try { out.write(s1.getBytes()); } finally { out.close(); // MUST be closed to complete the transfer } log.info("Retrieving as s2"); StringBuffer s2 = new StringBuffer(); InputStream in = ftp.downloadStream("Hello.txt"); try { int ch = 0; while ((ch = in.read()) >= 0) { s2.append((char)ch); } } finally { in.close(); // MUST be closed to complete the transfer } log.info("s1 == s2: " + s1.equals(s2.toString())); ftp.deleteFile("Hello.txt"); // Shut down client log.info("Quitting client"); ftp.disconnect(); log.info("Example complete"); } catch (Exception e) { e.printStackTrace(); } } }`