大家幫忙看看這個多線程有問題沒

整個流程是這樣的，循環從一個文件中讀取數據，每讀6萬條後就要暫停，啓動三個線程(每次僅允許三個線程同時處理)來處理這6萬條數據，處理結束後，再繼續讀。。。循環這樣直到文件中數據全部處理完。大家幫忙看看，有什麼問題沒，例如處理流程、併發。。。等方面，多謝！

public class CopyOfTest {
	public static void main(String[] args) {
		Producer p = new Producer();
		while(p.producer() > 0){
			p.cunsumer();
		}
	}
}

class Producer {
	private Lock lock = new ReentrantLock();
	private Condition notEmpty = lock.newCondition();
	private Condition notFull = lock.newCondition();
	private List<List<String>> dataList = null;
	private BufferedReader  reader;
	private static ExecutorService executor = Executors.newFixedThreadPool(3);
	
	public Producer() {
		try {
			reader = new BufferedReader(new InputStreamReader(new FileInputStream(new File("D:/11.txt")), "GBK"));
			dataList = new ArrayList<List<String>>();
		} catch (UnsupportedEncodingException e1) {
			e1.printStackTrace();
		} catch (FileNotFoundException e1) {
			e1.printStackTrace();
		}
	}
	
	public int producer() {
		String text = "";
		List<String> tmp = new ArrayList<String>();
		int count = 0;
		lock.lock();
		try {
			try {
				System.out.println("+++++++++++");
				if (dataList.size() == 0) {
					notEmpty.signalAll();
				}
				if (dataList.size() == 3) {
					try {
						notFull.await();
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
				while ((text = reader.readLine()) != null) {
					count++;
					System.out.println(count + "+++" + text);
					tmp.add(text);
					if (count % 20000 == 0) {
						dataList.add(tmp);
						tmp = new ArrayList<String>();
					}
					if (dataList.size() == 3) {
						break;
					}
				}
				if (count % 60000 != 0) {
					dataList.add(tmp);
				}
				tmp = null;
			} catch (IOException e1) {
				e1.printStackTrace();
			}
			if (dataList.size() < 1) {
				executor.shutdown();
			}
			return dataList.size();
		} finally {
			lock.unlock();
		}
	}
	
	public void cunsumer() {
		lock.lock();
		int len = dataList.size();
		Future<?>[] futureArr = new Future<?>[len];
		try {
			if (dataList.size() == 0) {
				try {
					notEmpty.await();
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
			if (dataList.size() == 3) {
				notFull.signalAll();
			}
			for (int i = 0; i < len; i++) {
				futureArr[i] = executor.submit(new SingleThread12(dataList.get(i)));
			}
			boolean flag = true;
			while (flag) {
				for (Future<?> f : futureArr) {
					flag = flag && f.isDone();
				}
				flag = !flag;
			}
			dataList = new ArrayList<List<String>>();
		} finally {
			lock.unlock();
		}
	}
}