// @Transactional(TransactionPropagationType.REQUIRED)
// @TransactionAttribute(TransactionAttributeType.REQUIRED)
public void updateTextContentItem(ContentItemI item, String content) {
ContentItem _item = item.getDelegate();
if (renderingPipeline.renderEditor(_item, currentUser).equals(content)) {
log.error("!!!!!!!!!!!!!!!!! renderingPipeline fails");
return;
// throw new TextContentNotChangedException("Could not create TextContentUpdate for an
// unchanged text content");
}
StoringService storingPipeline = (StoringService) Component.getInstance("storingPipeline");
TextContent tc = new TextContent(_item);
tc.setXmlString(storingPipeline.processHtmlSource(_item.getResource(), content));
tc = storingPipeline.processTextContent(_item.getResource(), tc);
entityManager.persist(tc);
// TODO: check whether content has changed and create version
// TODO: maybe we can check this even before the pipeline runs?
UpdateTextContentService utcs =
(UpdateTextContentService) Component.getInstance("updateTextContentService");
if (content != null) {
utcs.updateTextContent(_item, tc);
}
_item.setTextContent(tc);
Events.instance().raiseEvent(KiWiEvents.ACTIVITY_EDITCONTENTITEM, currentUser, _item);
Events.instance().raiseTransactionSuccessEvent(KiWiEvents.CONTENT_UPDATED, _item);
}
public List<ReferencesNode> getIncoming() {
if (incoming == null) {
incoming = new ArrayList<ReferencesNode>();
// get incoming triples up to limit
Collection<KiWiTriple> incomingTriples;
try {
incomingTriples = currentContentItem.getResource().listIncoming(null, limit);
} catch (NamespaceResolvingException e) {
e.printStackTrace();
incomingTriples = Collections.emptySet();
}
incomingCount = incomingTriples.size();
Map<KiWiResource, List<KiWiTriple>> groupings = calculateGrouping(incomingTriples);
for (KiWiResource prop : groupings.keySet()) {
// create new node for property
ReferencesNode node = new ReferencesNode(prop);
incoming.add(node);
// add all objects reachable by this property to the children of the node
for (KiWiTriple t : groupings.get(prop)) {
ReferencesNode child = new ReferencesNode((KiWiResource) t.getSubject());
if (t.isInferred()) {
child.setInferred(true);
}
child.setTripleId(t.getId());
node.getChildren().add(child);
}
}
}
return incoming;
}
// @TransactionAttribute(TransactionAttributeType.REQUIRED)
@Override
public ContentItem saveContentItem(@Update ContentItem item) {
// TODO: this should rather be solved declaratively by an appropriate modification of @RDF
item.getResource().setLabel(null, item.getTitle());
item.setModified(new Date());
// TODO: this method should raise an event to invalidate all caches that are
// currently holding an instance of this content item
if (item.getId() == null) {
log.debug("Persisting new ContentItem #0 ", item);
kiwiEntityManager.persist(item);
} else if (!entityManager.contains(item)) {
log.info("Merging ContentItem #0 ", item.getId());
item = entityManager.merge(item);
} else {
log.debug("Do nothing with ContentItem #0 ", item.getId());
}
// if there is multimedia data in this content item, extract it...
if (item.getMediaContent() != null) {
MultimediaService ms = (MultimediaService) Component.getInstance("multimediaService");
ms.extractMetadata(item);
}
return item;
}
// @Transactional(TransactionPropagationType.REQUIRED)
// @TransactionAttribute(TransactionAttributeType.REQUIRED)
@Override
public ContentItem createTextContentItem(String content) {
ContentItem item = createContentItem();
StoringService storingPipeline = (StoringService) Component.getInstance("storingPipeline");
TextContent tc = new TextContent(item);
tc.setXmlString(storingPipeline.processHtmlSource(item.getResource(), content));
tc = storingPipeline.processTextContent(item.getResource(), tc);
entityManager.persist(tc);
UpdateTextContentService utcs =
(UpdateTextContentService) Component.getInstance("updateTextContentService");
if (content != null) {
utcs.updateTextContent(item, tc);
}
item.setTextContent(tc);
Events.instance().raiseEvent(KiWiEvents.ACTIVITY_EDITCONTENTITEM, currentUser, item);
Events.instance().raiseTransactionSuccessEvent(KiWiEvents.CONTENT_UPDATED, item);
return item;
}
public void writeTo(
ContentItem st,
Class<?> type,
Type genericType,
Annotation[] annotations,
MediaType mediaType,
MultivaluedMap<String, Object> httpHeaders,
java.io.OutputStream entityStream)
throws IOException, WebApplicationException {
TripleStore tripleStore = (TripleStore) Component.getInstance("tripleStore");
log.info("Titel in Writer" + st.getTitle());
if (tripleStore == null) {
log.info("Triplestore not initialized");
}
tripleStore.exportData(entityStream, st.getResource(), KiWiDataFormat.RDFXML);
}
// @Transactional
// @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
public void importEntry(
final SyndFeed feed,
final SyndEntry entry,
final Set<KiWiUriResource> types,
final Set<ContentItem> tags,
User user,
final Collection<ContentItem> output) {
if (user == null && entry.getAuthor() != null && !"".equals(entry.getAuthor())) {
if (userService.userExists(entry.getAuthor())) {
user = userService.getUserByLogin(entry.getAuthor());
} else {
// user = userService.createUser(entry.getAuthor());
/* In my opinion, it is not ok to create a user entity
* without asking the person if he/she wants to be
* created and persisted in the KiWi dataset.
* Thus I'm changing the user to 'anonymous',
* if he/she is'nt registered with the same nick that
* is given in the rss entry.
*/
user = userService.getUserByLogin("anonymous");
kiwiEntityManager.persist(user);
}
}
log.debug("feed entry: #0 (#1)", entry.getTitle(), entry.getUri());
// create a new content item and copy all data from the feed entry
ContentItem item;
if (entry.getLink() != null) {
item = contentItemService.createExternContentItem(entry.getLink());
} else if (entry.getUri() != null) {
try {
// try parsing URI; if it is not valid,
URI uri = new URI(entry.getUri());
item = contentItemService.createExternContentItem(entry.getUri());
} catch (URISyntaxException e) {
item = contentItemService.createExternContentItem(feed.getLink() + "#" + entry.getUri());
}
} else {
item = contentItemService.createContentItem();
}
contentItemService.updateTitle(item, entry.getTitle());
if (feed.getLanguage() != null) item.setLanguage(new Locale(feed.getLanguage()));
if (entry.getPublishedDate() != null) {
item.setCreated(entry.getPublishedDate());
item.setModified(entry.getPublishedDate());
}
if (entry.getUpdatedDate() != null) {
if (entry.getPublishedDate() == null) {
item.setCreated(entry.getUpdatedDate());
}
item.setModified(entry.getUpdatedDate());
}
item.setAuthor(user);
// read feed content and set it as item's text content
List<SyndContent> contents = entry.getContents();
if (contents.size() == 1) {
log.debug("using RSS content section provided by item");
contentItemService.updateTextContentItem(item, "<p>" + contents.get(0).getValue() + "</p>");
} else if (contents.size() > 1) {
log.warn("feed entry contained more than one content section");
contentItemService.updateTextContentItem(item, "<p>" + contents.get(0).getValue() + "</p>");
} else if (contents.size() == 0) {
if (entry.getDescription() != null && entry.getDescription().getValue() != null) {
log.debug("using RSS description as no content section was available");
contentItemService.updateTextContentItem(
item, "<p>" + entry.getDescription().getValue() + "</p>");
}
}
// save before tagging
contentItemService.saveContentItem(item);
// read feed categories and use them as tags
for (SyndCategory cat : (List<SyndCategory>) entry.getCategories()) {
ContentItem _cat;
if (!taggingService.hasTag(item, cat.getName())) {
if (cat.getTaxonomyUri() != null) {
_cat = contentItemService.getContentItemByUri(cat.getTaxonomyUri());
if (_cat == null) {
_cat = contentItemService.createExternContentItem(cat.getTaxonomyUri());
contentItemService.updateTitle(_cat, cat.getName());
_cat.setAuthor(user);
contentItemService.saveContentItem(_cat);
}
taggingService.createTagging(cat.getName(), item, _cat, user);
} else {
_cat = contentItemService.getContentItemByTitle(cat.getName());
if (_cat == null) {
_cat = contentItemService.createContentItem();
contentItemService.updateTitle(_cat, cat.getName());
_cat.setAuthor(user);
contentItemService.saveContentItem(_cat);
}
taggingService.createTagging(cat.getName(), item, _cat, user);
}
}
}
// scan for Twitter-style hash tags in title (e.g. #kiwiknows, see KIWI-622)
Matcher m_hashtag = p_hashtag.matcher(entry.getTitle());
while (m_hashtag.find()) {
String tag_label = m_hashtag.group(1);
if (!taggingService.hasTag(item, tag_label)) {
ContentItem tag = contentItemService.getContentItemByTitle(tag_label);
if (tag == null) {
tag = contentItemService.createContentItem();
contentItemService.updateTitle(tag, tag_label);
tag.setAuthor(user);
contentItemService.saveContentItem(tag);
}
taggingService.createTagging(tag_label, item, tag, user);
}
}
// check for geo information
GeoRSSModule geoRSSModule = GeoRSSUtils.getGeoRSS(entry);
if (geoRSSModule != null && geoRSSModule.getPosition() != null) {
POI poi = kiwiEntityManager.createFacade(item, POI.class);
poi.setLatitude(geoRSSModule.getPosition().getLatitude());
poi.setLongitude(geoRSSModule.getPosition().getLongitude());
kiwiEntityManager.persist(poi);
}
// check for media information
MediaEntryModule mediaModule = (MediaEntryModule) entry.getModule(MediaModule.URI);
if (mediaModule != null) {
MediaContent[] media = mediaModule.getMediaContents();
if (media.length > 0) {
MediaContent m = media[0];
if (m.getReference() instanceof UrlReference) {
URL url = ((UrlReference) m.getReference()).getUrl();
String type = m.getType();
String name = url.getFile();
if (name.lastIndexOf("/") > 0) {
name = name.substring(name.lastIndexOf("/") + 1);
}
log.debug("importing media data from URL #0", url.toString());
try {
InputStream is = url.openStream();
ByteArrayOutputStream bout = new ByteArrayOutputStream();
int c;
while ((c = is.read()) != -1) {
bout.write(c);
}
byte[] data = bout.toByteArray();
contentItemService.updateMediaContentItem(item, data, type, name);
is.close();
bout.close();
} catch (IOException ex) {
log.error("error importing media content from RSS stream");
}
} else {
log.info("RSS importer can only import media with URL references");
}
} else {
log.warn("media module found without content");
}
Category[] cats = mediaModule.getMetadata().getCategories();
for (Category cat : cats) {
ContentItem _cat;
String label = cat.getLabel() != null ? cat.getLabel() : cat.getValue();
if (!taggingService.hasTag(item, label)) {
if (cat.getScheme() != null) {
_cat = contentItemService.getContentItemByUri(cat.getScheme() + cat.getValue());
if (_cat == null) {
_cat = contentItemService.createExternContentItem(cat.getScheme() + cat.getValue());
contentItemService.updateTitle(_cat, label);
_cat.setAuthor(user);
contentItemService.saveContentItem(_cat);
}
taggingService.createTagging(label, item, _cat, user);
} else {
_cat = contentItemService.getContentItemByTitle(label);
if (_cat == null) {
_cat = contentItemService.createContentItem();
contentItemService.updateTitle(_cat, label);
_cat.setAuthor(user);
contentItemService.saveContentItem(_cat);
}
taggingService.createTagging(label, item, _cat, user);
}
}
}
}
// add parameter categories as tags
for (ContentItem tag : tags) {
if (!taggingService.hasTag(item, tag.getTitle())) {
taggingService.createTagging(tag.getTitle(), item, tag, user);
}
}
// add parameter types as types
for (KiWiUriResource type : types) {
item.addType(type);
}
// add kiwi:FeedPost type
item.addType(tripleStore.createUriResource(Constants.NS_KIWI_CORE + "FeedPost"));
/* the flush is necessary, because CIs or tags will
* otherwise be created multiple times when they
* appear more than once in one RSS feed */
entityManager.flush();
log.debug("imported content item '#0' with URI '#1'", item.getTitle(), item.getResource());
}
private String getCIUri(ContentItem ci) {
return ((KiWiUriResource) ci.getResource()).getUri();
}