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.

Nested Class Summary

static class

IdUserGroup.DuplicateNameOrIdException

Constructor Summary

IdUserGroup()

Method Summary

int	getGid(String group)
int	getGidAllowingUnknown(String group)
String	getGroupName(int gid, String unknown)
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) 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()
            throws IOException

Throws:

IOException

Method Detail

updateMapInternal

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