private String getTokenPath(DelegationTokenIdentifier tokenIdentifier) {
    try {
      return rootNode + NODE_TOKENS + "/"
          + TokenStoreDelegationTokenSecretManager.encodeWritable(tokenIdentifier);
    } catch (IOException ex) {
      throw new TokenStoreException("Failed to encode token identifier", ex);
    }
  }
Parse comma separated list of ACL entries to secure generated nodes, e.g.
<code>sasl:hive/host1@MY.DOMAIN:cdrwa,sasl:hive/host2@MY.DOMAIN:cdrwa</code>
@param aclString
@return ACL list
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/security/ZooKeeperTokenStore.java