org.apache.hadoop.security

类 JniBasedUnixGroupsMapping

java.lang.Object

org.apache.hadoop.security.JniBasedUnixGroupsMapping

直接已知子类:

JniBasedUnixGroupsNetgroupMapping

public class JniBasedUnixGroupsMapping
extends Object

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

构造器概要

构造器

构造器和说明
JniBasedUnixGroupsMapping()

方法概要

方法

限定符和类型	方法和说明
void	cacheGroupsAdd(List<String> groups) Caches the group user information
void	cacheGroupsRefresh() Refresh the cache of groups and user mapping
List<String>	getGroups(String user) Get all various group memberships of a given user.

从类继承的方法 java.lang.Object

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

构造器详细资料

JniBasedUnixGroupsMapping

public JniBasedUnixGroupsMapping()

方法详细资料

getGroups

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

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

参数:

user - User's name

返回:

group memberships of user

抛出:

IOException

cacheGroupsRefresh

public void cacheGroupsRefresh()
                        throws IOException

Refresh the cache of groups and user mapping

抛出:

IOException

cacheGroupsAdd

public void cacheGroupsAdd(List<String> groups)
                    throws IOException

Caches the group user information

参数:

groups - list of groups to add to cache

抛出:

IOException