public static void init(Configuration conf, ServiceAuthorizationManager authManager) {
    // set service-level authorization security policy
    System.setProperty("hadoop.policy.file", "hbase-policy.xml");
    if (conf.getBoolean(ServiceAuthorizationManager.SERVICE_AUTHORIZATION_CONFIG, false)) {
      authManager.refresh(conf, new HBasePolicyProvider());
      ProxyUsers.refreshSuperUserGroupsConfiguration(conf);
    }
  }
Implementation of secure Hadoop policy provider for mapping protocol interfaces to
hbase-policy.xml entries.
hbase-server/src/main/java/org/apache/hadoop/hbase/security/HBasePolicyProvider.java