alluxio.security.group

Interface GroupMappingService

All Known Implementing Classes:

CachedGroupMapping, IdentityUserGroupsMapping, ShellBasedUnixGroupsMapping

@PublicApi
public interface GroupMappingService

Interface for Alluxio user-to-groups mapping. GroupMappingService allows for server to get the various group memberships of a given user via the getGroups(String) call, thus ensuring a consistent user-to-groups mapping and protects against mapping inconsistencies between servers and clients in an Alluxio cluster.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	GroupMappingService.Factory Factory for creating a new instance.

Method Summary

Modifier and Type	Method and Description
List<String>	getGroups(String user) Gets all various group memberships of a given user.

Method Detail

getGroups

List<String> getGroups(String user)
                throws IOException

Gets all various group memberships of a given user. Returns EMPTY list in case of non-existing user.

Parameters:

user - user's name

Returns:

group memberships of user

Throws:

IOException