运行阻塞套接字列表器

Question

我在客户端有一个套接字侦听器线程，它从服务器接收数据。目前我只是从套接字获取数据输入流并从流中读取数据。我希望修改我的侦听器线程，以便阻止对该线程的处理，直到在套接字中收到数据，而不是始终检查我的输入流。

我的套接字侦听器线程在下面给出

public void run() {
    listenFlag = true;
    try {
        //instream is a global variable
        inStream = new DataInputStream(clientSocket.getInputStream());
        while (listenFlag) {
            messageType = -1;
            if (readHeader()) {// Check for correct header
                Application.getLogger().log(Level.SEVERE, "<<< passed readHeader() ----");
                if (readType()) {// Check for valid Type
                    Application.getLogger().log(Level.SEVERE, "<<< passed readType ----");
                    readAndProcessMessage();// Read and process the correct message
                    Application.getLogger().log(Level.SEVERE, "<<< passed readAndProcessMessage ----");
                }
            } 
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
            }
        }
    } catch (InterruptedException e) {
        Application.getLogger().log(Level.SEVERE, "Interrupted socket communication - closing socket" + e.getMessage());
    } catch (InterruptedIOException e) {
        Application.getLogger().log(Level.SEVERE, "Interrupted IOException socket communication - closing socket" + e.getMessage());
    } catch (IOException ioe) {
        Application.getLogger().log(Level.SEVERE, "Socket read error : " + ioe.getMessage());
    } catch (Exception e) {
        Application.getLogger().log(Level.SEVERE, "Unknown exception on SocketListenThread:"+ e.getMessage());
    } finally {
        Application.getLogger().log(Level.SEVERE, "SocketListenThread: listenFlag : "+ listenFlag);
        Application.getLogger().log(Level.SEVERE, "Quiting SocketListnerThread Thread");
        DRISMCMStatus.socketListenerStatus = DRISMCMStatus.NOT_ALIVE;
        closeInputStream();

    }
}

//Read header called from above.
private boolean readHeader() throws Exception {
    Application.getLogger().log(Level.INFO, "Reading header..");
    DRISMCMStatus.socketListenerStatus = DRISMCMStatus.WAITING;
    int val = inStream.read();
    DRISMCMStatus.socketListenerStatus = DRISMCMStatus.RUNNING;
    Application.getLogger().log(Level.INFO, "[READ]: " + val);
    if (val == -1) {
        throw new IOException();
    }
    if ( val == SYNCCHAR) {
        return true;
    }
    return false;
}