How to use

getPermission

method

in

alluxio.security.authorization.AccessControlList

@Override
public AclActions getPermission(String user, List<String> groups) {
 return mAcl.getPermission(user, groups);
}

/**
 * Checks whether the user has the permission to perform the action.
 *
 * 1. If the user is the owner, then the owner entry determines the permission;
 * 2. Else if the user matches the name of one of the named user entries, this entry determines
 *    the permission;
 * 3. Else if one of the groups is the owning group and the owning group entry contains the
 *    requested permission, the permission is granted;
 * 4. Else if one of the groups matches the name of one of the named group entries and this entry
 *    contains the requested permission, the permission is granted;
 * 5. Else if one of the groups is the owning group or matches the name of one of the named group
 *    entries, but neither the owning group entry nor any of the matching named group entries
 *    contains the requested permission, the permission is denied;
 * 6. Otherwise, the other entry determines the permission.
 *
 * @param user the user
 * @param groups the groups the user belongs to
 * @param action the action
 * @return whether user has the permission to perform the action
 */
public boolean checkPermission(String user, List<String> groups, AclAction action) {
 return getPermission(user, groups).contains(action);
}

private void assertMode(Mode.Bits expected, AccessControlList acl, String user,
  List<String> groups) {
 Assert.assertEquals(expected, acl.getPermission(user, groups).toModeBits());
}