TableAuthManager.java 文件源码

/**
 * Updates the internal permissions cache for a single table, splitting
 * the permissions listed into separate caches for users and groups to optimize
 * group lookups.
 *
 * @param table
 * @param tablePerms
 */
private void updateTableCache(TableName table,
                              ListMultimap<String,TablePermission> tablePerms) {
  PermissionCache<TablePermission> newTablePerms = new PermissionCache<TablePermission>();

  for (Map.Entry<String,TablePermission> entry : tablePerms.entries()) {
    if (AuthUtil.isGroupPrincipal(entry.getKey())) {
      newTablePerms.putGroup(AuthUtil.getGroupName(entry.getKey()), entry.getValue());
    } else {
      newTablePerms.putUser(entry.getKey(), entry.getValue());
    }
  }

  tableCache.put(table, newTablePerms);
  mtime.incrementAndGet();
}