org.apache.oozie.service
Class GroupsService

java.lang.Object
  org.apache.oozie.service.GroupsService

All Implemented Interfaces:

Service

public class GroupsService
extends Object
implements Service

The GroupsService class delegates to the Hadoop's org.apache.hadoop.security.Groups to retrieve the groups a user belongs to.

Field Summary

static String

CONF_PREFIX

Fields inherited from interface org.apache.oozie.service.Service

DEFAULT_LOCK_TIMEOUT, lockTimeout, USE_XCOMMAND

Constructor Summary

GroupsService()

Method Summary

void	destroy() Destroys the service.
List<String>	getGroups(String user) Returns the list of groups a user belongs to.
Class<? extends Service>	getInterface() Returns the service interface.
void	init(Services services) Initializes the service.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CONF_PREFIX

public static final String CONF_PREFIX

See Also:

Constant Field Values

Constructor Detail

GroupsService

public GroupsService()

Method Detail

getInterface

public Class<? extends Service> getInterface()

Returns the service interface.

Specified by:

getInterface in interface Service

Returns:

GroupService

init

public void init(Services services)

Initializes the service.

Specified by:

init in interface Service

Parameters:

services - services singleton initializing the service.

destroy

public void destroy()

Destroys the service.

Specified by:

destroy in interface Service

getGroups

public List<String> getGroups(String user)
                       throws IOException

Returns the list of groups a user belongs to.

Parameters:

user - user name.

Returns:

the groups the given user belongs to.

Throws:

IOException - thrown if there was an error retrieving the groups of the user.