org.apache.hadoop.security
Class JniBasedUnixGroupsMapping

java.lang.Object
  extended by org.apache.hadoop.security.JniBasedUnixGroupsMapping
All Implemented Interfaces:
GroupMappingServiceProvider

public class JniBasedUnixGroupsMapping
extends Object
implements GroupMappingServiceProvider

A JNI-based implementation of GroupMappingServiceProvider that invokes libC calls to get the group memberships of a given user.


Constructor Summary
JniBasedUnixGroupsMapping()
           
 
Method Summary
 List<String> getGroups(String user)
          Get all various group memberships of a given user.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JniBasedUnixGroupsMapping

public JniBasedUnixGroupsMapping()
Method Detail

getGroups

public List<String> getGroups(String user)
                       throws IOException
Description copied from interface: GroupMappingServiceProvider
Get all various group memberships of a given user. Returns EMPTY list in case of non-existing user

Specified by:
getGroups in interface GroupMappingServiceProvider
Parameters:
user - User's name
Returns:
group memberships of user
Throws:
IOException


Copyright © 2009 The Apache Software Foundation