se.kmr.scam.rdf.util
Class IMSCPUtil

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

public class IMSCPUtil

extends Object

Helper for IMS Content Packaging.

Title:

Description:

Copyright: Copyright (c) 2002

Company:

Version:

'$Revision $'

Author:

jand

Field Summary

protected static org.apache.log4j.Category

LOG Log4j-logger

Constructor Summary

IMSCPUtil()

Method Summary

static boolean	addItem(Model m, Resource parent, Resource item) Add sub-item to an IMS Container.
static Resource	createManifest(Model m, String uri, String defaultUri) Create the default structure of an IMSCP Manifest, including an anonymous default IMSCP Hierarchy.
static Resource	getContent(Model m, Resource item) Get the IMSCP.content-resource of an Item
static Resource	getDefaultOrg(Model m) Fetch the default IMSCP Organization resource
static Resource	getItemWithProperty(Model m, Resource parent, Property prop, RDFNode value) Get the sub-item (child) having the given Property-Value.
static Resource	getManifest(Model m) Fetch the IMSCP.manifest resource
static Resource	getParent(Model m, Resource res) Fetch IMS Container referencing res by RDF.li.
static boolean	hasContainer(Model m) Does the model contain an IMS Container?
static boolean	hasManifest(Model m) See if model contains an IMS.manifest
static boolean	isContainer(Model m, Resource res) Is resource a IMSCP container, i.e.
static boolean	isContainer(Resource res)
static boolean	isContainer(Statement stm)
static boolean	isContentItem(Model m, Resource res)
static boolean	isFolder(Model m, Resource res)
static boolean	isFolderLink(Model m, Resource res) Check if content-Resource is a "link" to a Folder, i.e. has a property SCAM.inModel and is an IMS Folder.
static boolean	isLink(Model m, Resource res) Check if content-Resource is a "link", i.e. has a property SCAM.inModel.
static List	listAllItems(Model m, Resource parent) List all ancestors of an IMS Container.
static List	listContainers(Model m) List all IMS Containers
static List	listItems(Model m, Resource parent) List sub-items of an IMS Container.
static List	listNonContainers(Model m) List all resources that is NOT an IMS Container
static List	listNonIMSResources(Model m) List all resources that is NOT an IMS Resource, i.e. does NOT have an RDF.type-object with IMSCP Namespace
static List	listReferences(Model m, Resource res) List IMS Items referencing res by IMSCP.content .
static void	main(String[] args)
static boolean	removeItem(Model m, Resource parent, Resource item) Remove sub-item from an IMS Container.
static boolean	removeParentRef(Model m, Resource child) Remove RDF.li parent reference.

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

IMSCPUtil

public IMSCPUtil()

Method Detail

isContainer

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

Is resource a IMSCP container, i.e. IMSCP.item?

Parameters:

m - Model

res - Resource

Returns:

false if resource not found or non-container

Throws:

RDFException

isContainer

public static boolean isContainer(Resource res)
                           throws RDFException

Throws:

RDFException

isContainer

public static boolean isContainer(Statement stm)
                           throws RDFException

Throws:

RDFException

isFolder

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

Throws:

RDFException

isContentItem

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

Throws:

RDFException

createManifest

public static Resource createManifest(Model m,
                                      String uri,
                                      String defaultUri)
                               throws RDFException

Create the default structure of an IMSCP Manifest, including an anonymous default IMSCP Hierarchy.

Parameters:

m - Model

uri - The Manifest URI

defaultUri - The default hierarchy URI

Returns:

The Manifest resource

Throws:

RDFException

To do:

Anonymous default hierarchy?

hasManifest

public static boolean hasManifest(Model m)
                           throws RDFException

See if model contains an IMS.manifest

Parameters:

m - Model

Returns:

true if so

Throws:

RDFException

getManifest

public static Resource getManifest(Model m)
                            throws RDFException

Fetch the IMSCP.manifest resource

Parameters:

m - Model

Returns:

IMSCP.manifest or null if not found

Throws:

RDFException

getDefaultOrg

public static Resource getDefaultOrg(Model m)
                              throws RDFException

Fetch the default IMSCP Organization resource

Parameters:

m - Model

Returns:

IMSCP Container or null if not found

Throws:

RDFException

getParent

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

Fetch IMS Container referencing res by RDF.li.

Parameters:

m - Model

res - Resource (child)

Returns:

IMS Container (parent) of res

Throws:

RDFException

getItemWithProperty

public static Resource getItemWithProperty(Model m,
                                           Resource parent,
                                           Property prop,
                                           RDFNode value)
                                    throws RDFException

Get the sub-item (child) having the given Property-Value. If multiple items applies the first will be returned.

Parameters:

m - Model

parent - Parent Item

prop - Property to look for

value - Value of that property

Returns:

Item or null if not found

Throws:

RDFException

getContent

public static Resource getContent(Model m,
                                  Resource item)
                           throws RDFException

Get the IMSCP.content-resource of an Item

Parameters:

m - Model

item - Item

Returns:

content-Resource or null if not found

Throws:

RDFException

isFolderLink

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

Check if content-Resource is a "link" to a Folder, i.e. has a property SCAM.inModel and is an IMS Folder.

Parameters:

m - Model

res - content-Resource

Returns:

true if Folder-link

Throws:

RDFException

isLink

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

Check if content-Resource is a "link", i.e. has a property SCAM.inModel.

Parameters:

m - Model

res - content-Resource

Returns:

true if link

Throws:

RDFException

hasContainer

public static boolean hasContainer(Model m)
                            throws RDFException

Does the model contain an IMS Container?

Parameters:

m - Model

Returns:

true if so.

Throws:

RDFException

addItem

public static boolean addItem(Model m,
                              Resource parent,
                              Resource item)
                       throws RDFException

Add sub-item to an IMS Container.
Note: Parent must be an IMS Container.
Note: Verify that item is an IMS Container!

Parameters:

m - Model

parent - Parent IMS Container

item - New item.

Returns:

true if item could be added.

Throws:

RDFException - if parent/item is NOT IMS Containers

removeItem

public static boolean removeItem(Model m,
                                 Resource parent,
                                 Resource item)
                          throws RDFException

Remove sub-item from an IMS Container.

Parameters:

m - Model

parent - Parent IMS Container

item - New item.

Returns:

true if item could be removed.

Throws:

RDFException - if parent is NOT an IMS Container

listItems

public static List listItems(Model m,
                             Resource parent)
                      throws RDFException

List sub-items of an IMS Container.

Parameters:

m - Model

parent - IMS Container

Returns:

Collection of Resources

Throws:

RDFException

listAllItems

public static List listAllItems(Model m,
                                Resource parent)
                         throws RDFException

List all ancestors of an IMS Container. Recursive.

Parameters:

m - Model

parent - IMS Container

Returns:

Collection of Resources

Throws:

RDFException

listContainers

public static List listContainers(Model m)
                           throws RDFException

List all IMS Containers

Parameters:

m - Model

Returns:

Collection of Resources

Throws:

RDFException

listNonContainers

public static List listNonContainers(Model m)
                              throws RDFException

List all resources that is NOT an IMS Container

Parameters:

m - Model

Returns:

Collection of Resources

Throws:

RDFException

listNonIMSResources

public static List listNonIMSResources(Model m)
                                throws RDFException

List all resources that is NOT an IMS Resource, i.e. does NOT have an RDF.type-object with IMSCP Namespace

Parameters:

m - Model

Returns:

Collection of Resources

Throws:

RDFException

To do:

is this OK?

listReferences

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

List IMS Items referencing res by IMSCP.content .

Parameters:

m - Model

res - Resource

Returns:

Collection of Resources

Throws:

RDFException - Description of the Exception

removeParentRef

public static boolean removeParentRef(Model m,
                                      Resource child)
                               throws RDFException

Remove RDF.li parent reference.

Parameters:

m - Model

child - Remove reference to this Item

Returns:

true if removed

Throws:

RDFException

main

public static void main(String[] args)