发送然后在同一个套接字中接收文件？ 【JAVA]

Question

我的客户端服务器配置需要执行以下操作：

1. 客户端将视频发送到服务器。
2. 服务器接收视频并进行转换。
3. 服务器将转换后的视频发送给客户端。
4. 客户端收到转换后的视频。

我知道如何传输文件并进行转换，因此前两步已完成。但后来我需要发回视频。天真的方法，这将使服务器看起来像这样：

//Receive file
File copy = new File("copypath");
byte[] bytearray = new byte[10000000];
InputStream is = socket.getInputStream();
FileOutputStream fos = new FileOutputStream(copy);
BufferedOutputStream bos = new BufferedOutputStream(fos);
int bytesRead = is.read(bytearray, 0, bytearray.length);
int currentTot = bytesRead;
do {
    bytesRead = is.read(bytearray, currentTot,
            (bytearray.length - currentTot));
    if (bytesRead >= 0)
        currentTot += bytesRead;
} while (bytesRead > -1);
bos.write(bytearray, 0, currentTot);

//Convert file
File converted = convert(copy);

//Send file back:
bytearray = new byte[(int) converted.length()];
FileInputStream fin = new FileInputStream(converted);
BufferedInputStream bin = new BufferedInputStream(fin);
bin.read(bytearray, 0, bytearray.length);   
OutputStream os = socket.getOutputStream();
os.write(bytearray, 0, bytearray.length);

客户端代码为：

OutputStream os = socket.getOutputStream();
//System.out.println("Sending file...");
os.write(bytearray, 0, bytearray.length);
os.flush();

//  System.out.println("File transfer complete");

//Y recibe
File copy = new File(convertedName);
bytearray = new byte[10000000];
InputStream is = socket.getInputStream();
FileOutputStream fos = new FileOutputStream(copy);
BufferedOutputStream bos = new BufferedOutputStream(fos);
int bytesRead = is.read(bytearray,0,bytearray.length);
int currentTot = bytesRead;
do{
bytesRead =
is.read(bytearray,currentTot,(bytearray.length-currentTot));
if(bytesRead >= 0)currentTot+=bytesRead;
} while(bytesRead > -1);
bos.write(bytearray,0,currentTot);

......没有用。关于如何进行的任何提示？