org.apache.hadoop.nfs.nfs3

Class IdUserGroup

java.lang.Object

org.apache.hadoop.nfs.nfs3.IdUserGroup

public class IdUserGroup
extends Object

Map id to user name or group name. It does update every 15 minutes. Only a single instance of this class is expected to be on the server.

Constructor Summary

Constructors

Constructor and Description
IdUserGroup(org.apache.hadoop.conf.Configuration conf)

Method Summary

Methods

Modifier and Type	Method and Description
int	getGid(String group)
int	getGidAllowingUnknown(String group)
String	getGroupName(int gid, String unknown)
long	getTimeout()
int	getUid(String user)
int	getUidAllowingUnknown(String user)
String	getUserName(int uid, String unknown)
static void	updateMapInternal(com.google.common.collect.BiMap<Integer,String> map, String mapName, String command, String regex, Map<Integer,Integer> staticMapping) Get the whole list of users and groups and save them in the maps.
void	updateMaps()

Methods inherited from class java.lang.Object

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

Constructor Detail

IdUserGroup

public IdUserGroup(org.apache.hadoop.conf.Configuration conf)
            throws IOException

Throws:

IOException

Method Detail

getTimeout

public long getTimeout()

updateMapInternal

public static void updateMapInternal(com.google.common.collect.BiMap<Integer,String> map,
                     String mapName,
                     String command,
                     String regex,
                     Map<Integer,Integer> staticMapping)
                              throws IOException

Get the whole list of users and groups and save them in the maps.

Throws:

IOException

updateMaps

public void updateMaps()
                throws IOException

Throws:

IOException

getUid

public int getUid(String user)
           throws IOException

Throws:

IOException

getGid

public int getGid(String group)
           throws IOException

Throws:

IOException

getUserName

public String getUserName(int uid,
                 String unknown)

getGroupName

public String getGroupName(int gid,
                  String unknown)

getUidAllowingUnknown

public int getUidAllowingUnknown(String user)

getGidAllowingUnknown

public int getGidAllowingUnknown(String group)