public void showFolders(OutputStream output) {
        throw new UnsupportedOperationException();
        // try {
        // output.write(ZkPathUtil.toString(this).getBytes());
        // } catch (final IOException e) {
        // e.printStackTrace();
        // }
    }
Counts number of children for the given path.

@param path
@return number of children or 0 if path does not exist.
shared/common/src/main/java/com/alibaba/otter/shared/common/utils/zookeeper/ZkClientx.java