se.kmr.scam.rdf.util
Class ACLUtil

java.lang.Object
  se.kmr.scam.rdf.util.ACLUtil

public class ACLUtil

extends Object

Access Control List helper.

Title:

Description:

Copyright: Copyright (c) 2002

Company:

Version:

$Revision $

Author:

jand

Field Summary

protected static org.apache.log4j.Category

LOG Log4j-logger

Constructor Summary

ACLUtil()

Method Summary

static void	addPermission(Model m, Resource res, RDFNode principal, Property perm) Add a permission for a principal.
static void	copyACL(Model sourceModel, Resource source, Model destModel, Resource dest) Copy the ACL-entries from one component to another.
static Resource	createACL(Model m, Resource res) Create a new ACL.acl of res or reuse existing one.
static Resource	getACL(Model m, Resource res) Get the ACL.acl resource of res.
static boolean	hasACL(Model m, Resource res) Check if res has an ACL.acl resource.
static boolean	hasOwner(Model m, Resource res) Check if resource has an ACL.owner.
static boolean	hasPermission(Model m, Resource res, Collection principals, Property perm) Check permission for a collection of principals.
static boolean	hasPermission(Model m, Resource res, RDFNode principal, Property perm) Check permission for principal on a resource.
static boolean	isOwner(Model m, Resource res, RDFNode principal) Check if principal is the ACL.owner.
static List	listPermissions(Model m, Resource res) List all permissions.
static List	listPermissions(Model m, Resource res, RDFNode principal) List all permissions for a specific principal.
static List	listPrincipals(Model m, Resource res) List all principals.
static List	listPrincipals(Model m, Resource res, Property perm) List all principals with a specific permission.
static void	main(String[] args)
static void	removePermission(Model m, Resource res) Remove all permissions for all principals.
static void	removePermission(Model m, Resource res, RDFNode principal) Remove all permissions for a specific principal.
static void	removePermission(Model m, Resource res, RDFNode principal, Property perm) Remove permission for a specific principal.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static org.apache.log4j.Category LOG

Log4j-logger

Constructor Detail

ACLUtil

public ACLUtil()

Method Detail

createACL

public static Resource createACL(Model m,
                                 Resource res)
                          throws RDFException

Create a new ACL.acl of res or reuse existing one.

Parameters:

m - Model

res - Resource

Returns:

the ACL.acl resource

Throws:

RDFException

getACL

public static Resource getACL(Model m,
                              Resource res)
                       throws RDFException

Get the ACL.acl resource of res.

Parameters:

m - Model

res - Resource

Returns:

the ACL.acl resource or null if not found.

Throws:

RDFException

hasACL

public static boolean hasACL(Model m,
                             Resource res)
                      throws RDFException

Check if res has an ACL.acl resource.

Parameters:

m - Model

res - Resource

Returns:

true if exists

Throws:

RDFException

hasPermission

public static boolean hasPermission(Model m,
                                    Resource res,
                                    RDFNode principal,
                                    Property perm)
                             throws RDFException

Check permission for principal on a resource. A principal has all permissions if she is the ACL.owner.

Parameters:

m - Model

res - Resource

principal - Principal

perm - Permission

Returns:

true if principal has this permission

Throws:

RDFException

hasPermission

public static boolean hasPermission(Model m,
                                    Resource res,
                                    Collection principals,
                                    Property perm)
                             throws RDFException

Check permission for a collection of principals. A principal has all permissions if she is the ACL.owner.

Parameters:

m - Model

res - Resource

principals - Collection of principals (RDFNodes)

perm - Permission

Returns:

true if ANY principal has this permission

Throws:

RDFException

To do:

Unnecessary lookup of ACL.acl resource!

hasOwner

public static boolean hasOwner(Model m,
                               Resource res)
                        throws RDFException

Check if resource has an ACL.owner.

Parameters:

m - Model

res - Resource

Returns:

true if principal is owner

Throws:

RDFException

isOwner

public static boolean isOwner(Model m,
                              Resource res,
                              RDFNode principal)
                       throws RDFException

Check if principal is the ACL.owner.

Parameters:

m - Model

res - Resource

principal - Principal

Returns:

true if principal is owner

Throws:

RDFException

listPermissions

public static List listPermissions(Model m,
                                   Resource res)
                            throws RDFException

List all permissions. Statement predicate is the permission, object is the principal.

Parameters:

m - Model

res - Resource

Returns:

Collection of Statements

Throws:

RDFException

listPermissions

public static List listPermissions(Model m,
                                   Resource res,
                                   RDFNode principal)
                            throws RDFException

List all permissions for a specific principal.

Parameters:

m - Model

res - Resource

principal - Principal

Returns:

Collection of Property

Throws:

RDFException

listPrincipals

public static List listPrincipals(Model m,
                                  Resource res)
                           throws RDFException

List all principals.

Parameters:

m - Model

res - Resource

Returns:

Collection of RDFNodes

Throws:

RDFException

listPrincipals

public static List listPrincipals(Model m,
                                  Resource res,
                                  Property perm)
                           throws RDFException

List all principals with a specific permission.

Parameters:

m - Model

res - Resource

perm - Permission

Returns:

Collection of RDFNodes

Throws:

RDFException

addPermission

public static void addPermission(Model m,
                                 Resource res,
                                 RDFNode principal,
                                 Property perm)
                          throws RDFException

Add a permission for a principal. Creates a new ACL.acl resource if necessary.

Parameters:

m - Model

res - Resource

principal - Principal

perm - Permission

Throws:

RDFException

removePermission

public static void removePermission(Model m,
                                    Resource res)
                             throws RDFException

Remove all permissions for all principals.

Parameters:

m - Model

res - Resource

Throws:

RDFException

removePermission

public static void removePermission(Model m,
                                    Resource res,
                                    RDFNode principal)
                             throws RDFException

Remove all permissions for a specific principal.

Parameters:

m - Model

res - Resource

principal - Principal

Throws:

RDFException

removePermission

public static void removePermission(Model m,
                                    Resource res,
                                    RDFNode principal,
                                    Property perm)
                             throws RDFException

Remove permission for a specific principal.

Parameters:

m - Model

res - Resource

principal - Principal

perm - Premission

Throws:

RDFException

copyACL

public static void copyACL(Model sourceModel,
                           Resource source,
                           Model destModel,
                           Resource dest)
                    throws RDFException

Copy the ACL-entries from one component to another.

Parameters:

sourceModel - Source Model

source - Source Component

destModel - Destination Model

dest - Destination Model

Throws:

RDFException

main

public static void main(String[] args)