Package com.mapr.fs

Class MapRFileAce

java.lang.Object

com.mapr.fs.MapRFileAce

public class MapRFileAce
extends java.lang.Object

Access Control Expression. An ACE is defined by a combination of user, group, or role definitions. You can combine these definitions using the following syntax:

• u: Username or user ID, as they appear in /etc/passwd, of a specific user. Usage: u:[username or user ID]
• g: Group name or group ID, as they appear in /etc/group, of a specific group. Usage: g:[group name or group ID]
• r: Name of a specific role. Usage: r:[role name]. More details about roles is found at Roles
• p: Public. Specifies that this operation is available to the public without restriction. Cannot be combined with any other operator.
• !: Negation operator. Usage: ![operator].
• &: AND operation.
• |: OR operation
• (): Delimiters for subexpressions.
• "": The empty string indicates that no user has the specified permission.

An example definition is u:1001 | g:engineering, which restricts access to the user with ID 1001 or to any user belonging to engineering group. More details about syntax and examples is found in ACE

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MapRFileAce.AccessType	Access type.

Constructor Summary

Constructors

Constructor	Description
MapRFileAce(MapRFileAce.AccessType type)

Method Summary

Modifier and Type	Method	Description
MapRFileAce.AccessType	getAccessType()	Returns access type.
java.lang.String	getBooleanExpression()	Returns boolean expression.
static boolean	IsBooleanExpressionValid(java.lang.String bExprIn)	Checks whether boolean expression is valid.
void	setBooleanExpression(java.lang.String bExprIn)	Set Access Control Expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapRFileAce

public MapRFileAce(MapRFileAce.AccessType type)

Method Detail

setBooleanExpression

public void setBooleanExpression(java.lang.String bExprIn)
                          throws java.io.IOException

Set Access Control Expression.

Throws:

java.io.IOException - if boolean expression is invalid

IsBooleanExpressionValid

public static boolean IsBooleanExpressionValid(java.lang.String bExprIn)

Checks whether boolean expression is valid.

getAccessType

public MapRFileAce.AccessType getAccessType()

Returns access type.

getBooleanExpression

public java.lang.String getBooleanExpression()

Returns boolean expression.