org.apache.clerezza.rdf.core.access.security

Class TcAccessController

java.lang.Object

org.apache.clerezza.rdf.core.access.security.TcAccessController

public abstract class TcAccessController
extends Object

Controls the permissions needed to access a triple collection provided by TcManager. Clients with a ConfigureTcAcessPermission can set the permissions required to access a TripleCollection. These permissions are stored persistently in an MGraph named urn:x-localinstance:/graph-access.graph Clients should get an instance from TcManager.getTcAccessController()

Author:

reto

Field Summary

Fields

Modifier and Type	Field and Description
static UriRef	first The first item in the subject RDF list.
static UriRef	rdfNil
static UriRef	rest The rest of the subject RDF list after the first item.

Constructor Summary

Constructors

Constructor and Description
TcAccessController()

Method Summary

Methods

Modifier and Type	Method and Description
void	checkReadPermission(UriRef tripleCollectionUri)
void	checkReadWritePermission(UriRef tripleCollectionUri)
Collection<Permission>	getRequiredReadPermissions(UriRef tripleCollectionUri) Get the set of permissions required for read access to the triple-collection, the set may be empty meaning that the default TCPermission is required.
Collection<Permission>	getRequiredReadWritePermissions(UriRef tripleCollectionUri) Get the set of permissions required for read-write access to the triple-collection, the set may be empty meaning that the default TCPermission is required.
protected abstract TcManager	getTcManager() Note that this will only be invoked once
void	setRequiredReadPermissions(UriRef tripleCollectionUri, Collection<Permission> permissions) Set the set of permissions required for read access to a triple-collection, if the set is non-empty the default TCPermisson is no longer required.
void	setRequiredReadPermissionStrings(UriRef tripleCollectionUri, Collection<String> permissionDescriptions) Set the set of permissions required for read access to a triple-collection, if the set is non-empty the default TCPermisson is no longer required.
void	setRequiredReadWritePermissions(UriRef tripleCollectionUri, Collection<Permission> permissions) Set the set of permissions required for read-write access to a triple-collection, if the set is non-empty the default TCPermisson is no longer required.
void	setRequiredReadWritePermissionStrings(UriRef tripleCollectionUri, Collection<String> permissionDescriptions) Set the set of permissions required for read-write access to a triple-collection, if the set is non-empty the default TCPermisson is no longer required.

Methods inherited from class java.lang.Object

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

Field Detail

first

public static final UriRef first

The first item in the subject RDF list.

rest

public static final UriRef rest

The rest of the subject RDF list after the first item.

rdfNil

public static final UriRef rdfNil

Constructor Detail

TcAccessController

public TcAccessController()

Parameters:

tcManager - the tcManager used to locate urn:x-localinstance:/graph-access.graph

Method Detail

checkReadPermission

public void checkReadPermission(UriRef tripleCollectionUri)

checkReadWritePermission

public void checkReadWritePermission(UriRef tripleCollectionUri)

setRequiredReadPermissionStrings

public void setRequiredReadPermissionStrings(UriRef tripleCollectionUri,
                                    Collection<String> permissionDescriptions)

Set the set of permissions required for read access to a triple-collection, if the set is non-empty the default TCPermisson is no longer required.

Parameters:

tripleCollectionUri -

permissionDescriptions -

setRequiredReadPermissions

public void setRequiredReadPermissions(UriRef tripleCollectionUri,
                              Collection<Permission> permissions)

Set the set of permissions required for read access to a triple-collection, if the set is non-empty the default TCPermisson is no longer required.

Parameters:

tripleCollectionUri -

permissionDescriptions -

setRequiredReadWritePermissionStrings

public void setRequiredReadWritePermissionStrings(UriRef tripleCollectionUri,
                                         Collection<String> permissionDescriptions)

Set the set of permissions required for read-write access to a triple-collection, if the set is non-empty the default TCPermisson is no longer required.

Parameters:

tripleCollectionUri -

permissionDescriptions -

setRequiredReadWritePermissions

public void setRequiredReadWritePermissions(UriRef tripleCollectionUri,
                                   Collection<Permission> permissions)

Set the set of permissions required for read-write access to a triple-collection, if the set is non-empty the default TCPermisson is no longer required.

Parameters:

tripleCollectionUri -

permissionDescriptions -

getRequiredReadPermissions

public Collection<Permission> getRequiredReadPermissions(UriRef tripleCollectionUri)

Get the set of permissions required for read access to the triple-collection, the set may be empty meaning that the default TCPermission is required.

Parameters:

tripleCollectionUri -

Returns:

the collection of permissions

getRequiredReadWritePermissions

public Collection<Permission> getRequiredReadWritePermissions(UriRef tripleCollectionUri)

Get the set of permissions required for read-write access to the triple-collection, the set may be empty meaning that the default TCPermission is required.

Parameters:

tripleCollectionUri -

Returns:

the collection of permissions

getTcManager

protected abstract TcManager getTcManager()

Note that this will only be invoked once

Returns: