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

Example 21 with MCRMetaLinkID

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

the class MCRMODSMetadataShareAgent method distributeMetadata.

/* (non-Javadoc)
     * @see org.mycore.datamodel.metadata.share.MCRMetadataShareAgent#inheritMetadata(org.mycore.datamodel.metadata.MCRObject)
     */
@Override
public void distributeMetadata(MCRObject holder) throws MCRPersistenceException, MCRAccessException {
    MCRMODSWrapper holderWrapper = new MCRMODSWrapper(holder);
    List<MCRMetaLinkID> children = holder.getStructure().getChildren();
    if (!children.isEmpty()) {
        LOGGER.info("Update inherited metadata");
        for (MCRMetaLinkID childIdRef : children) {
            MCRObjectID childId = childIdRef.getXLinkHrefID();
            if (MCRMODSWrapper.isSupported(childId)) {
                LOGGER.info("Update: {}", childIdRef);
                MCRObject child = MCRMetadataManager.retrieveMCRObject(childId);
                MCRMODSWrapper childWrapper = new MCRMODSWrapper(child);
                inheritToChild(holderWrapper, childWrapper);
                LOGGER.info("Saving: {}", childIdRef);
                try {
                    MCRMetadataManager.update(child);
                } catch (MCRPersistenceException | MCRAccessException e) {
                    throw new MCRPersistenceException("Error while updating inherited metadata", e);
                }
            }
        }
    }
    Collection<String> recipientIds = MCRLinkTableManager.instance().getSourceOf(holder.getId(), MCRLinkTableManager.ENTRY_TYPE_REFERENCE);
    for (String rId : recipientIds) {
        MCRObjectID recipientId = MCRObjectID.getInstance(rId);
        if (MCRMODSWrapper.isSupported(recipientId)) {
            LOGGER.info("distribute metadata to {}", rId);
            MCRObject recipient = MCRMetadataManager.retrieveMCRObject(recipientId);
            MCRMODSWrapper recipientWrapper = new MCRMODSWrapper(recipient);
            for (Element relatedItem : recipientWrapper.getLinkedRelatedItems()) {
                String holderId = relatedItem.getAttributeValue("href", MCRConstants.XLINK_NAMESPACE);
                if (holder.getId().toString().equals(holderId)) {
                    @SuppressWarnings("unchecked") Filter<Content> sharedMetadata = (Filter<Content>) Filters.element("part", MCRConstants.MODS_NAMESPACE).negate();
                    relatedItem.removeContent(sharedMetadata);
                    relatedItem.addContent(holderWrapper.getMODS().cloneContent());
                    LOGGER.info("Saving: {}", recipientId);
                    try {
                        MCRMetadataManager.update(recipient);
                    } catch (MCRPersistenceException | MCRAccessException e) {
                        throw new MCRPersistenceException("Error while updating shared metadata", e);
                    }
                }
            }
        }
    }
}

Example 22 with MCRMetaLinkID

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

the class MCRRestAPIObjectsHelper method listDerivates.

/**
 * returns a list of derivate objects
 * @param info - the injected Jersey URIInfo object
 *
 * @param mcrObjID - the MyCoRe Object ID
 * @param format - the output format ('xml'|'json')
 * @param sort - the sort criteria
 *
 * @return a Jersey response object
 * @throws MCRRestAPIException
 *
 * @see org.mycore.restapi.v1.MCRRestAPIObjects#listDerivates(UriInfo, HttpServletRequest, String, String, String)
 */
public static Response listDerivates(UriInfo info, HttpServletRequest request, String mcrObjID, String format, String sort) throws MCRRestAPIException {
    List<MCRRestAPIError> errors = new ArrayList<>();
    MCRRestAPISortObject sortObj = null;
    try {
        sortObj = createSortObject(sort);
    } catch (MCRRestAPIException rae) {
        errors.addAll(rae.getErrors());
    }
    if (format.equals(MCRRestAPIObjects.FORMAT_JSON) || format.equals(MCRRestAPIObjects.FORMAT_XML)) {
    // ok
    } else {
        errors.add(new MCRRestAPIError(MCRRestAPIError.CODE_WRONG_PARAMETER, "The Parameter format is wrong.", "Allowed values for format are 'json' or 'xml'."));
    }
    if (errors.size() > 0) {
        throw new MCRRestAPIException(Status.BAD_REQUEST, errors);
    }
    // Parameters are checked - continue to retrieve data
    List<MCRObjectIDDate> objIdDates = retrieveMCRObject(mcrObjID).getStructure().getDerivates().stream().map(MCRMetaLinkID::getXLinkHrefID).filter(MCRMetadataManager::exists).map(id -> new MCRObjectIDDate() {

        long lastModified;

        {
            try {
                lastModified = MCRXMLMetadataManager.instance().getLastModified(id);
            } catch (IOException e) {
                lastModified = 0;
                LOGGER.error("Exception while getting last modified of {}", id, e);
            }
        }

        @Override
        public String getId() {
            return id.toString();
        }

        @Override
        public Date getLastModified() {
            return new Date(lastModified);
        }
    }).sorted(new MCRRestAPISortObjectComparator(sortObj)::compare).collect(Collectors.toList());
    String authHeader = MCRJSONWebTokenUtil.createJWTAuthorizationHeader(MCRJSONWebTokenUtil.retrieveAuthenticationToken(request));
    // output as XML
    if (MCRRestAPIObjects.FORMAT_XML.equals(format)) {
        Element eDerObjects = new Element("derobjects");
        Document docOut = new Document(eDerObjects);
        eDerObjects.setAttribute("numFound", Integer.toString(objIdDates.size()));
        for (MCRObjectIDDate oid : objIdDates) {
            Element eDerObject = new Element("derobject");
            eDerObject.setAttribute("ID", oid.getId());
            MCRDerivate der = MCRMetadataManager.retrieveMCRDerivate(MCRObjectID.getInstance(oid.getId()));
            String mcrID = der.getDerivate().getMetaLink().getXLinkHref();
            eDerObject.setAttribute("metadata", mcrID);
            if (der.getLabel() != null) {
                eDerObject.setAttribute("label", der.getLabel());
            }
            eDerObject.setAttribute("lastModified", SDF_UTC.format(oid.getLastModified()));
            eDerObject.setAttribute("href", info.getAbsolutePathBuilder().path(oid.getId()).build().toString());
            eDerObjects.addContent(eDerObject);
        }
        try {
            StringWriter sw = new StringWriter();
            XMLOutputter xout = new XMLOutputter(Format.getPrettyFormat());
            xout.output(docOut, sw);
            return Response.ok(sw.toString()).type("application/xml; charset=UTF-8").header(HEADER_NAME_AUTHORIZATION, authHeader).build();
        } catch (IOException e) {
            throw new MCRRestAPIException(Response.Status.INTERNAL_SERVER_ERROR, new MCRRestAPIError(MCRRestAPIError.CODE_INTERNAL_ERROR, GENERAL_ERROR_MSG, e.getMessage()));
        }
    }
    // output as JSON
    if (MCRRestAPIObjects.FORMAT_JSON.equals(format)) {
        StringWriter sw = new StringWriter();
        try {
            JsonWriter writer = new JsonWriter(sw);
            writer.setIndent("    ");
            writer.beginObject();
            writer.name("numFound").value(objIdDates.size());
            writer.name("mycoreobjects");
            writer.beginArray();
            for (MCRObjectIDDate oid : objIdDates) {
                writer.beginObject();
                writer.name("ID").value(oid.getId());
                MCRDerivate der = MCRMetadataManager.retrieveMCRDerivate(MCRObjectID.getInstance(oid.getId()));
                String mcrID = der.getDerivate().getMetaLink().getXLinkHref();
                writer.name("metadata").value(mcrID);
                if (der.getLabel() != null) {
                    writer.name("label").value(der.getLabel());
                }
                writer.name("lastModified").value(SDF_UTC.format(oid.getLastModified()));
                writer.name("href").value(info.getAbsolutePathBuilder().path(oid.getId()).build().toString());
                writer.endObject();
            }
            writer.endArray();
            writer.endObject();
            writer.close();
            return Response.ok(sw.toString()).type("application/json; charset=UTF-8").header(HEADER_NAME_AUTHORIZATION, authHeader).build();
        } catch (IOException e) {
            throw new MCRRestAPIException(Response.Status.INTERNAL_SERVER_ERROR, new MCRRestAPIError(MCRRestAPIError.CODE_INTERNAL_ERROR, GENERAL_ERROR_MSG, e.getMessage()));
        }
    }
    throw new MCRRestAPIException(Response.Status.INTERNAL_SERVER_ERROR, new MCRRestAPIError(MCRRestAPIError.CODE_INTERNAL_ERROR, "Unexepected program flow termination.", "Please contact a developer!"));
}