Examples with MCRMetaLink org.mycore.datamodel.metadata.MCRMetaLink used on opensource projects

Example 1 with MCRMetaLink

use of org.mycore.datamodel.metadata.MCRMetaLink in project mycore by MyCoRe-Org.

the class MCRLinkTableManager method create.

/**
 * Creates all references for the given object. You should call {@link #delete(MCRObjectID)} before using this
 * method otherwise doublets could occur.
 *
 * @param obj the object to create the references
 */
public void create(MCRObject obj) {
    MCRObjectID mcrId = obj.getId();
    // set new entries
    MCRObjectMetadata meta = obj.getMetadata();
    // use Set for category collection to remove duplicates if there are any
    Collection<MCRCategoryID> categories = new HashSet<>();
    meta.stream().flatMap(MCRMetaElement::stream).forEach(inf -> {
        if (inf instanceof MCRMetaClassification) {
            String classId = ((MCRMetaClassification) inf).getClassId();
            String categId = ((MCRMetaClassification) inf).getCategId();
            categories.add(new MCRCategoryID(classId, categId));
        } else if (inf instanceof MCRMetaLinkID) {
            addReferenceLink(mcrId.toString(), ((MCRMetaLink) inf).getXLinkHref(), MCRLinkTableManager.ENTRY_TYPE_REFERENCE, "");
        } else if (inf instanceof MCRMetaDerivateLink) {
            addReferenceLink(mcrId.toString(), ((MCRMetaLink) inf).getXLinkHref(), MCRLinkTableManager.ENTRY_TYPE_DERIVATE_LINK, "");
        }
    });
    MCRCategoryID state = obj.getService().getState();
    if (state != null) {
        categories.add(state);
    }
    if (categories.size() > 0) {
        MCRCategLinkReference objectReference = new MCRCategLinkReference(mcrId);
        MCRCategLinkServiceFactory.getInstance().setLinks(objectReference, categories);
    }
    // add derivate reference
    MCRObjectStructure structure = obj.getStructure();
    for (int i = 0; i < structure.getDerivates().size(); i++) {
        MCRMetaLinkID lid = structure.getDerivates().get(i);
        addReferenceLink(obj.getId(), lid.getXLinkHrefID(), MCRLinkTableManager.ENTRY_TYPE_DERIVATE, "");
    }
    // add parent reference
    if (structure.getParentID() != null) {
        addReferenceLink(mcrId, structure.getParentID(), MCRLinkTableManager.ENTRY_TYPE_PARENT, "");
    }
}