/** {@inheritDoc} */
public List getCollections(ContentCollection collection) {
ContentHostingHandler chh = collection.getContentHandler();
if (chh != null) {
return chh.getCollections(collection);
} else {
List allCollections = storage.getCollections(collection); // the real collections
// Find any virtual *resources* which are really *collections*
List l = storage.getResources(collection);
for (java.util.Iterator i = l.iterator(); i.hasNext(); ) {
ContentResource o = (ContentResource) i.next();
ContentResource cr = getResource(o.getId());
if (cr != null) {
ResourceProperties p = cr.getProperties();
if (p != null
&& p.getProperty(CHH_BEAN_NAME) != null
&& p.getProperty(CHH_BEAN_NAME).length() > 0) {
allCollections.add(
getVirtualChild(
cr.getId() + Entity.SEPARATOR, cr, true)); // this one is a virtual collection!
}
}
}
return allCollections;
}
}
/**
* {@inheritDoc}
*
* @throws ServerOverloadException
*/
public InputStream streamResourceBody(ContentResource resource) throws ServerOverloadException {
ContentHostingHandler chh = resource.getContentHandler();
if (chh != null) {
return chh.streamResourceBody(resource);
} else {
return storage.streamResourceBody(resource);
}
}
/** {@inheritDoc} */
public void removeResource(ContentResourceEdit edit) {
ContentHostingHandler chh = edit.getContentHandler();
if (chh != null) {
chh.removeResource(edit);
} else {
storage.removeResource(edit);
}
}
/** {@inheritDoc} */
public void removeCollection(ContentCollectionEdit edit) {
ContentHostingHandler chh = edit.getContentHandler();
if (chh != null) {
chh.removeCollection(edit);
} else {
storage.removeCollection(edit);
}
}
/** {@inheritDoc} */
public void commitResource(ContentResourceEdit edit) throws ServerOverloadException {
ContentHostingHandler chh = edit.getContentHandler();
if (chh != null) {
chh.commit(edit);
} else {
storage.commitResource(edit);
}
}
/** {@inheritDoc} */
public void commitDeleteResource(ContentResourceEdit edit, String uuid) {
ContentHostingHandler chh = edit.getContentHandler();
if (chh != null) {
chh.commitDeleted(edit, uuid);
} else {
storage.commitDeleteResource(edit, uuid);
}
}
/* (non-Javadoc)
* @see org.sakaiproject.content.api.ContentHostingHandlerResolver#getMemberResourceIds(java.lang.String)
*/
public Collection<String> getMemberResourceIds(String collectionId) {
ContentEntity ce = getVirtualChild(collectionId, getRealParent(collectionId), false);
if (ce != null) {
ContentHostingHandler chh = ce.getContentHandler();
if (chh != null) {
return chh.getMemberResourceIds(ce);
}
}
return storage.getMemberResourceIds(collectionId);
}
public int getMemberCount(String id) {
ContentEntity ce = getVirtualChild(id, getRealParent(id), false);
if (ce != null) {
ContentHostingHandler chh = ce.getContentHandler();
if (chh != null) {
return chh.getMemberCount(ce);
}
}
return storage.getMemberCount(id);
}
/** {@inheritDoc} */
public ContentResourceEdit putResource(String id) {
ContentEntity ce = getVirtualChild(id, getRealParent(id), false);
if (ce != null) {
ContentHostingHandler chh = ce.getContentHandler();
if (chh != null) {
ContentResourceEdit cre = chh.getContentResourceEdit(id);
cre.setVirtualContentEntity(
getVirtualChild(id, getRealParent(id), false).getVirtualContentEntity());
return cre;
}
}
return storage.putResource(id);
}
/** {@inheritDoc} */
public ContentCollectionEdit editCollection(String id) {
ContentEntity ce = getVirtualChild(id, getRealParent(id), false);
if (ce != null) {
ContentHostingHandler chh = ce.getContentHandler();
if (chh != null) {
ContentCollectionEdit cce = chh.getContentCollectionEdit(id);
cce.setVirtualContentEntity(
getVirtualChild(id, getRealParent(id), false).getVirtualContentEntity());
return cce;
}
}
return storage.editCollection(id);
}
/** {@inheritDoc} */
public List getFlatResources(String id) {
List l = storage.getFlatResources(id);
if (l != null) {
return l;
}
ContentEntity ce = getVirtualChild(id, getRealParent(id), true);
if (ce != null) {
ContentHostingHandler chh = ce.getContentHandler();
if (chh != null) {
return chh.getFlatResources(ce);
}
}
return null;
}
/** {@inheritDoc} */
public boolean checkCollection(String id) {
if (storage.checkCollection(id)) {
return true;
}
ContentEntity ce = getVirtualChild(id, getRealParent(id), true);
if (ce != null) {
if (id.equals(ce.getId())) {
if (ce instanceof ContentCollection) {
return true;
}
}
}
return false;
}
/**
* Find the closest real ancestor to the requested id, this recurses into itself
*
* @param id
* @return the closest ancestor or null if not found (bit unlikely)
*/
public ContentEntity getRealParent(String id) {
ContentEntity ce = storage.getCollection(id);
if (ce == null) {
try {
ce = storage.getResource(id);
} catch (TypeException e) {
log.debug("Type Exception ", e);
}
}
if (ce == null) {
if (id.equals(Entity.SEPARATOR)) {
// If the entity is the root and we didint get anything, there is nothing we can do
// no root, no content, no point in trying to get annother one
log.fatal("Unable to get Root node of the repository");
throw new AssertionError("Unable to Get Root repository " + Entity.SEPARATOR);
}
int lastSlash = id.lastIndexOf(Entity.SEPARATOR, id.length() - 2);
if (lastSlash > 0) {
String parentId = id.substring(0, lastSlash + 1 /* [email protected] wanted a "- 1" here */);
ce = getRealParent(parentId);
}
}
return ce;
}
/** {@inheritDoc} */
public ContentCollection getCollection(String id) {
ContentCollection cc = storage.getCollection(id);
if (cc != null) {
return cc;
}
ContentEntity rp = getRealParent(id);
if (rp == null) {
return null;
}
ContentEntity ce = getVirtualChild(id, rp, true);
if (ce instanceof ContentCollection) {
return (ContentCollection) ce;
}
return null;
}
/** {@inheritDoc} */
public ContentResource getResource(String id) {
ContentResource cc = null;
try {
cc = storage.getResource(id);
} catch (TypeException e) {
log.debug("Type Exception ", e);
}
if (cc != null) {
return cc;
}
ContentEntity ce = getVirtualChild(id, getRealParent(id), true);
if (ce instanceof ContentResource) {
return (ContentResource) ce;
}
return null;
}
/** {@inheritDoc} */
public List getResources(ContentCollection collection) {
ContentHostingHandler chh = collection.getContentHandler();
if (chh != null) {
return chh.getResources(collection);
} else {
List l = storage.getResources(collection);
for (java.util.Iterator i = l.iterator(); i.hasNext(); ) {
ContentResource o = (ContentResource) i.next();
ContentResource cr = getResource(o.getId());
if (cr != null) {
ResourceProperties p = cr.getProperties();
if (p != null
&& p.getProperty(CHH_BEAN_NAME) != null
&& p.getProperty(CHH_BEAN_NAME).length() > 0)
i.remove(); // this one is a virtual collection!
}
}
return l;
}
}
