Concurrent edit experience is cumbersome about disklrucache HOT 2 OPEN

HashMap<String, ReentrantLock> mDiskCacheEditLocks = new HashMap<String, ReentrantLock>();

final ReentrantLock lock = getLockForDiskCacheEdit(key);
lock.lock();
try {
    DiskLruCache.Editor editor = mDiskCache.edit(key);
    // blah
    editor.commit();
} catch (IOException e) {
    e.printStackTrace();
} finally {
    lock.unlock();
}

private ReentrantLock getLockForDiskCacheEdit(String key) {
    synchronized (mDiskCacheEditLocks) {
        ReentrantLock lock = mDiskCacheEditLocks.get(key);
        if (null == lock) {
            lock = new ReentrantLock();
            mDiskCacheEditLocks.put(key, lock);
        }
        return lock;
    }
}