Examples with CPItem org.olat.ims.cp.objects.CPItem used on opensource projects

Example 1 with CPItem

use of org.olat.ims.cp.objects.CPItem in project OpenOLAT by OpenOLAT.

the class CPCore method addElementAfter.

/**
 * adds an element to the cp. Adds it after the item with identifier "id"
 *
 * @param newElement
 * @param id
 * @return
 */
public boolean addElementAfter(DefaultElement newElement, String id) {
    DefaultElement beforeElement = rootNode.getElementByIdentifier(id);
    if (beforeElement == null)
        return false;
    if (beforeElement instanceof CPItem) {
        // beforeElement is a <item>
        // ==> newElement has to be an <item>
        CPItem beforeItem = (CPItem) beforeElement;
        DefaultElement parent = beforeItem.getParentElement();
        if (!(newElement instanceof CPItem)) {
            throw new OLATRuntimeException(CPOrganizations.class, "only <item> element allowed", new Exception());
        }
        if (parent instanceof CPItem) {
            CPItem p = (CPItem) parent;
            p.addItemAt((CPItem) newElement, beforeItem.getPosition() + 1);
        } else if (parent instanceof CPOrganization) {
            CPOrganization o = (CPOrganization) parent;
            o.addItemAt((CPItem) newElement, beforeItem.getPosition() + 1);
        } else {
            throw new OLATRuntimeException(CPOrganizations.class, "you cannot add an <item> element to a " + parent.getName() + " element", new Exception());
        }
    }
    return true;
}

Example 2 with CPItem

use of org.olat.ims.cp.objects.CPItem in project OpenOLAT by OpenOLAT.

the class CPCore method removeElement.

/**
 * removes an element with identifier "identifier" from the manifest
 *
 * @param identifier the identifier if the element to remove
 * @param booleanFlag indicates whether to remove linked resources as well...!
 *          (needed for moving elements)
 */
public void removeElement(String identifier, boolean resourceFlag) {
    DefaultElement el = rootNode.getElementByIdentifier(identifier);
    if (el != null) {
        if (el instanceof CPItem) {
            // element is CPItem
            CPItem item = (CPItem) el;
            // first remove resources
            if (resourceFlag) {
                // Delete children (depth first search)
                removeChildElements(item, resourceFlag);
                // remove referenced resource
                CPResource res = (CPResource) rootNode.getElementByIdentifier(item.getIdentifierRef());
                if (res != null && referencesCount(res) == 1) {
                    res.removeFromManifest();
                }
            }
            // then remove item
            item.removeFromManifest();
        } else if (el instanceof CPOrganization) {
            // element is organization
            CPOrganization org = (CPOrganization) el;
            org.removeFromManifest(resourceFlag);
        } else if (el instanceof CPMetadata) {
            // element is <metadata>
            CPMetadata md = (CPMetadata) el;
            md.removeFromManifest();
        }
    } else {
        throw new OLATRuntimeException(CPOrganizations.class, "couldn't remove element with id \"" + identifier + "\"! Element not found in manifest ", new Exception());
    }
}

Example 3 with CPItem

use of org.olat.ims.cp.objects.CPItem in project OpenOLAT by OpenOLAT.

the class CPCore method referencesCount.

/**
 * Checks how many item-elements link to the given resource element.
 *
 * @param resource
 * @return
 */
protected int referencesCount(CPResource resource) {
    int linkCount = 0;
    Vector<CPItem> items = new Vector<CPItem>();
    for (Iterator<CPOrganization> it = rootNode.getOrganizations().getOrganizationIterator(); it.hasNext(); ) {
        CPOrganization org = it.next();
        items.addAll(org.getAllItems());
    }
    for (CPItem item : items) {
        if (item.getIdentifierRef().equals(resource.getIdentifier()))
            linkCount++;
    }
    Vector<CPDependency> dependencies = rootNode.getResources().getAllDependencies();
    for (CPDependency dependency : dependencies) {
        if (dependency.getIdentifierRef().equals(resource.getIdentifier()))
            linkCount++;
    }
    return linkCount;
}

Example 4 with CPItem

use of org.olat.ims.cp.objects.CPItem in project OpenOLAT by OpenOLAT.

the class CPCore method getPageByItemID.

/**
 * Gets the linked page for the <item> element with given id if no resource
 * (page) is referenced, null is returned
 *
 * @param id
 * @return
 */
public String getPageByItemID(String id) {
    DefaultElement ele = getElementByIdentifier(id);
    if (ele instanceof CPItem) {
        CPItem item = (CPItem) ele;
        if (item.getIdentifierRef() == null || item.getIdentifierRef().equals("")) {
            return null;
        }
        DefaultElement resElement = getElementByIdentifier(item.getIdentifierRef());
        if (resElement instanceof CPResource) {
            CPResource res = (CPResource) resElement;
            return res.getFullHref();
        } else {
            Logger log = Logger.getLogger(this.getClass().getName());
            log.info("method: getPageByItemID(" + id + ") :  invalid manifest.. identifierred of <item> must point to a <resource>-element");
            return null;
        }
    } else {
        return null;
    }
}

Example 5 with CPItem

use of org.olat.ims.cp.objects.CPItem in project OpenOLAT by OpenOLAT.

the class CPCore method _findReferencesToRes.

/**
 * searches recursively for <item>-elements with identifierRef "id" in the
 * children-collection of the item "item"
 *
 * @param item
 * @param id
 * @return
 */
private CPItem _findReferencesToRes(CPItem item, String id) {
    if (item.getIdentifierRef().equals(id))
        return item;
    for (Iterator<CPItem> itO = item.getItems().iterator(); itO.hasNext(); ) {
        CPItem it = itO.next();
        CPItem found = _findReferencesToRes(it, id);
        if (found != null)
            return found;
    }
    return null;
}