ShellBasedUnixGroupsMapping (Alluxio Core - Common Utilities 294 API)

java.lang.Object
- alluxio.security.group.provider.ShellBasedUnixGroupsMapping

All Implemented Interfaces:

GroupMappingService
```
public final class ShellBasedUnixGroupsMapping
extends java.lang.Object
implements GroupMappingService
```
A simple shell-based implementation of GroupMappingService that exec's the groups shell command to fetch the group memberships of a given user.

- Nested Class Summary
  - Nested classes/interfaces inherited from interface alluxio.security.group.GroupMappingService
    GroupMappingService.Factory
- Constructor Summary
  
  Constructors
  Constructor Description
  
  ShellBasedUnixGroupsMapping()
  Constructs a new ShellBasedUnixGroupsMapping.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  java.util.List<java.lang.String> getGroups(java.lang.String user)
  Returns list of groups for a user.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ShellBasedUnixGroupsMapping
```
public ShellBasedUnixGroupsMapping()
```
    Constructs a new ShellBasedUnixGroupsMapping.
- Method Detail
  - getGroups
```
public java.util.List<java.lang.String> getGroups(java.lang.String user)
                                           throws java.io.IOException
```
    Returns list of groups for a user.
    
    Specified by:
    
    getGroups in interface GroupMappingService
    
    Parameters:
    
    user - get groups for this user
    
    Returns:
    
    list of groups for a given user
    
    Throws:
    
    java.io.IOException