Java Socket programming-Transferring directory through socket in Java

public class FileEvent implements Serializable {

public FileEvent() {
}

private static final long serialVersionUID = 1L;

private String destinationDirectory;
private String sourceDirectory;
private String filename;
private long fileSize;
private byte[] fileData;
private String status;
private int remainder;

public String getDestinationDirectory() {
return destinationDirectory;
}

public void setDestinationDirectory(String destinationDirectory) {
this.destinationDirectory = destinationDirectory;
}

public String getSourceDirectory() {
return sourceDirectory;
}

public void setSourceDirectory(String sourceDirectory) {
this.sourceDirectory = sourceDirectory;
}

public String getFilename() {
return filename;
}

public void setFilename(String filename) {
this.filename = filename;
}

public long getFileSize() {
return fileSize;
}

public void setFileSize(long fileSize) {
this.fileSize = fileSize;
}

public String getStatus() {
return status;
}

public void setStatus(String status) {
this.status = status;
}

public byte[] getFileData() {
return fileData;
}

public void setFileData(byte[] fileData) {
this.fileData = fileData;
}

public int getRemainder() {
return remainder;
}

public class Server {
private ServerSocket serverSocket = null;
private Socket socket = null;
private ObjectInputStream inputStream = null;
private FileEvent fileEvent;
private File dstFile = null;
private FileOutputStream fileOutputStream = null;

public Server() {

}

/**
* Accepts socket connection
*/
public void doConnect() {
try {
serverSocket = new ServerSocket(4445);
socket = serverSocket.accept();
inputStream = new ObjectInputStream(socket.getInputStream());
} catch (IOException e) {
e.printStackTrace();
}
}

/**
* Reading the FileEvent object and copying the file to disk.
*/
public void downloadFiles() {
while (socket.isConnected()) {
try {
fileEvent = (FileEvent) inputStream.readObject();
if (fileEvent.getStatus().equalsIgnoreCase("Error")) {
System.out.println("Error occurred ..with file" + fileEvent.getFilename() + "at sending end ..");

}
String outputFile = fileEvent.getDestinationDirectory() + fileEvent.getFilename();
if (!new File(fileEvent.getDestinationDirectory()).exists()) {
new File(fileEvent.getDestinationDirectory()).mkdirs();
}
dstFile = new File(outputFile);
fileOutputStream = new FileOutputStream(dstFile);
fileOutputStream.write(fileEvent.getFileData());
fileOutputStream.flush();
fileOutputStream.close();
System.out.println("Output file : " + outputFile + " is successfully saved ");
if (fileEvent.getRemainder() == 0) {
System.out.println("Whole directory is copied...So system is going to exit");
System.exit(0);
}

public class Client {
private Socket socket = null;
private boolean isConnected = false;
private ObjectOutputStream outputStream = null;
private String sourceDirectory = "E:/temp/songs";
private String destinationDirectory = "C:/tmp/downloads/";
private int fileCount = 0;
private FileEvent fileEvent = null;

public Client() {

}

public void connect() {
while (!isConnected) {
try {
socket = new Socket("localHost", 4445);
outputStream = new ObjectOutputStream(socket.getOutputStream());
isConnected = true;
} catch (IOException e) {
e.printStackTrace();
}
}
}

public void locateFiles() {
File srcDir = new File(sourceDirectory);
if (!srcDir.isDirectory()) {
System.out.println("Source directory is not valid ..Exiting the client");
System.exit(0);
}
File[] files = srcDir.listFiles();
fileCount = files.length;
if (fileCount == 0) {
System.out.println("Empty directory ..Exiting the client");
System.exit(0);
}

for (int i = 0; i < fileCount; i++) { System.out.println("Sending " + files[i].getAbsolutePath()); sendFile(files[i].getAbsolutePath(), fileCount - i - 1); System.out.println(files[i].getAbsolutePath()); } } public void sendFile(String fileName, int index) { fileEvent = new FileEvent(); fileEvent.setDestinationDirectory(destinationDirectory); fileEvent.setSourceDirectory(sourceDirectory); File file = new File(fileName); fileEvent.setFilename(file.getName()); fileEvent.setRemainder(index); DataInputStream diStream = null; try { diStream = new DataInputStream(new FileInputStream(file)); long len = (int) file.length(); byte[] fileBytes = new byte[(int) len]; int read = 0; int numRead = 0; while (read < fileBytes.length && (numRead = diStream.read(fileBytes, read, fileBytes.length - read)) >= 0) {
read = read + numRead;
}
fileEvent.setFileData(fileBytes);
fileEvent.setStatus("Success");
} catch (Exception e) {
e.printStackTrace();
fileEvent.setStatus("Error");

}

try {
outputStream.writeObject(fileEvent);
} catch (IOException e) {
e.printStackTrace();
}
}