@Override
public void removeCollection(Context context, Community community, Collection collection)
throws SQLException, AuthorizeException, IOException {
// Check authorisation
authorizeService.authorizeAction(context, community, Constants.REMOVE);
community.removeCollection(collection);
ArrayList<String> removedIdentifiers = collectionService.getIdentifiers(context, collection);
String removedHandle = collection.getHandle();
UUID removedId = collection.getID();
collection.removeCommunity(community);
if (CollectionUtils.isEmpty(collection.getCommunities())) {
collectionService.delete(context, collection);
}
log.info(
LogManager.getHeader(
context,
"remove_collection",
"community_id=" + community.getID() + ",collection_id=" + collection.getID()));
// Remove any mappings
context.addEvent(
new Event(
Event.REMOVE,
Constants.COMMUNITY,
community.getID(),
Constants.COLLECTION,
removedId,
removedHandle,
removedIdentifiers));
}
@Override
public void removeSubcommunity(
Context context, Community parentCommunity, Community childCommunity)
throws SQLException, AuthorizeException, IOException {
// Check authorisation
authorizeService.authorizeAction(context, parentCommunity, Constants.REMOVE);
ArrayList<String> removedIdentifiers = getIdentifiers(context, childCommunity);
String removedHandle = childCommunity.getHandle();
UUID removedId = childCommunity.getID();
parentCommunity.removeSubCommunity(childCommunity);
childCommunity.getParentCommunities().remove(parentCommunity);
if (CollectionUtils.isEmpty(childCommunity.getParentCommunities())) {
rawDelete(context, childCommunity);
}
log.info(
LogManager.getHeader(
context,
"remove_subcommunity",
"parent_comm_id="
+ parentCommunity.getID()
+ ",child_comm_id="
+ childCommunity.getID()));
context.addEvent(
new Event(
Event.REMOVE,
Constants.COMMUNITY,
parentCommunity.getID(),
Constants.COMMUNITY,
removedId,
removedHandle,
removedIdentifiers));
}
@Override
public void addSubcommunity(Context context, Community parentCommunity, Community childCommunity)
throws SQLException, AuthorizeException {
// Check authorisation
authorizeService.authorizeAction(context, parentCommunity, Constants.ADD);
log.info(
LogManager.getHeader(
context,
"add_subcommunity",
"parent_comm_id="
+ parentCommunity.getID()
+ ",child_comm_id="
+ childCommunity.getID()));
if (!parentCommunity.getSubcommunities().contains(childCommunity)) {
parentCommunity.addSubCommunity(childCommunity);
childCommunity.addParentCommunity(parentCommunity);
}
context.addEvent(
new Event(
Event.ADD,
Constants.COMMUNITY,
parentCommunity.getID(),
Constants.COMMUNITY,
childCommunity.getID(),
parentCommunity.getHandle(),
getIdentifiers(context, parentCommunity)));
}
@Override
public void addCollection(Context context, Community community, Collection collection)
throws SQLException, AuthorizeException {
// Check authorisation
authorizeService.authorizeAction(context, community, Constants.ADD);
log.info(
LogManager.getHeader(
context,
"add_collection",
"community_id=" + community.getID() + ",collection_id=" + collection.getID()));
if (!community.getCollections().contains(collection)) {
community.addCollection(collection);
collection.addCommunity(community);
}
context.addEvent(
new Event(
Event.ADD,
Constants.COMMUNITY,
community.getID(),
Constants.COLLECTION,
collection.getID(),
community.getHandle(),
getIdentifiers(context, community)));
}
@Override
public void update(Context context, Community community) throws SQLException, AuthorizeException {
// Check authorisation
canEdit(context, community);
log.info(
LogManager.getHeader(context, "update_community", "community_id=" + community.getID()));
communityDAO.save(context, community);
if (community.isModified()) {
context.addEvent(
new Event(
Event.MODIFY,
Constants.COMMUNITY,
community.getID(),
null,
getIdentifiers(context, community)));
community.setModified();
}
if (community.isMetadataModified()) {
context.addEvent(
new Event(
Event.MODIFY_METADATA,
Constants.COMMUNITY,
community.getID(),
community.getDetails(),
getIdentifiers(context, community)));
community.clearModified();
}
community.clearDetails();
}
/**
* Internal method to remove the community and all its children from the database, and perform any
* pre/post-cleanup
*
* @throws SQLException
* @throws AuthorizeException
* @throws IOException
*/
protected void rawDelete(Context context, Community community)
throws SQLException, AuthorizeException, IOException {
log.info(
LogManager.getHeader(context, "delete_community", "community_id=" + community.getID()));
context.addEvent(
new Event(
Event.DELETE,
Constants.COMMUNITY,
community.getID(),
community.getHandle(),
getIdentifiers(context, community)));
// Remove collections
Iterator<Collection> collections = community.getCollections().iterator();
while (collections.hasNext()) {
Collection collection = collections.next();
collections.remove();
removeCollection(context, community, collection);
}
// delete subcommunities
Iterator<Community> subCommunities = community.getSubcommunities().iterator();
while (subCommunities.hasNext()) {
Community subComm = subCommunities.next();
subCommunities.remove();
delete(context, subComm);
}
// Remove the logo
setLogo(context, community, null);
// Remove all authorization policies
authorizeService.removeAllPolicies(context, community);
// Remove any Handle
handleService.unbindHandle(context, community);
deleteMetadata(context, community);
Group g = community.getAdministrators();
// Delete community row
communityDAO.delete(context, community);
// Remove administrators group - must happen after deleting community
if (g != null) {
groupService.delete(context, g);
}
}
@Override
public void updateLastModified(Context context, Community community) {
// Also fire a modified event since the community HAS been modified
context.addEvent(
new Event(
Event.MODIFY,
Constants.COMMUNITY,
community.getID(),
null,
getIdentifiers(context, community)));
}
@Override
public Bitstream setLogo(Context context, Community community, InputStream is)
throws AuthorizeException, IOException, SQLException {
// Check authorisation
// authorized to remove the logo when DELETE rights
// authorized when canEdit
if (!((is == null)
&& authorizeService.authorizeActionBoolean(context, community, Constants.DELETE))) {
canEdit(context, community);
}
// First, delete any existing logo
Bitstream oldLogo = community.getLogo();
if (oldLogo != null) {
log.info(LogManager.getHeader(context, "remove_logo", "community_id=" + community.getID()));
community.setLogo(null);
bitstreamService.delete(context, oldLogo);
}
if (is != null) {
Bitstream newLogo = bitstreamService.create(context, is);
community.setLogo(newLogo);
// now create policy for logo bitstream
// to match our READ policy
List<ResourcePolicy> policies =
authorizeService.getPoliciesActionFilter(context, community, Constants.READ);
authorizeService.addPolicies(context, policies, newLogo);
log.info(
LogManager.getHeader(
context,
"set_logo",
"community_id=" + community.getID() + "logo_bitstream_id=" + newLogo.getID()));
}
return community.getLogo();
}
@Override
public void delete(Context context, Community community)
throws SQLException, AuthorizeException, IOException {
// Check authorisation
// FIXME: If this was a subcommunity, it is first removed from it's
// parent.
// This means the parentCommunity == null
// But since this is also the case for top-level communities, we would
// give everyone rights to remove the top-level communities.
// The same problem occurs in removing the logo
if (!authorizeService.authorizeActionBoolean(
context, getParentObject(context, community), Constants.REMOVE)) {
authorizeService.authorizeAction(context, community, Constants.DELETE);
}
ArrayList<String> removedIdentifiers = getIdentifiers(context, community);
String removedHandle = community.getHandle();
UUID removedId = community.getID();
// If not a top-level community, have parent remove me; this
// will call rawDelete() before removing the linkage
Community parent = (Community) getParentObject(context, community);
if (parent != null) {
// remove the subcommunities first
Iterator<Community> subcommunities = community.getSubcommunities().iterator();
while (subcommunities.hasNext()) {
Community subCommunity = subcommunities.next();
subcommunities.remove();
delete(context, subCommunity);
}
// now let the parent remove the community
removeSubcommunity(context, parent, community);
return;
}
rawDelete(context, community);
context.addEvent(
new Event(
Event.REMOVE,
Constants.SITE,
siteService.findSite(context).getID(),
Constants.COMMUNITY,
removedId,
removedHandle,
removedIdentifiers));
}
@Override
public Group createAdministrators(Context context, Community community)
throws SQLException, AuthorizeException {
// Check authorisation - Must be an Admin to create more Admins
AuthorizeUtil.authorizeManageAdminGroup(context, community);
Group admins = community.getAdministrators();
if (admins == null) {
// turn off authorization so that Community Admins can create Sub-Community Admins
context.turnOffAuthorisationSystem();
admins = groupService.create(context);
context.restoreAuthSystemState();
admins.setName(context, "COMMUNITY_" + community.getID() + "_ADMIN");
groupService.update(context, admins);
}
authorizeService.addPolicy(context, community, Constants.ADMIN, admins);
// register this as the admin group
community.setAdmins(admins);
return admins;
}
@Override
public Community create(Community parent, Context context, String handle)
throws SQLException, AuthorizeException {
if (!(authorizeService.isAdmin(context)
|| (parent != null
&& authorizeService.authorizeActionBoolean(context, parent, Constants.ADD)))) {
throw new AuthorizeException("Only administrators can create communities");
}
Community newCommunity = communityDAO.create(context, new Community());
try {
if (handle == null) {
handleService.createHandle(context, newCommunity);
} else {
handleService.createHandle(context, newCommunity, handle);
}
} catch (IllegalStateException ie) {
// If an IllegalStateException is thrown, then an existing object is already using this handle
throw ie;
}
if (parent != null) {
parent.addSubCommunity(newCommunity);
newCommunity.addParentCommunity(parent);
}
// create the default authorization policy for communities
// of 'anonymous' READ
Group anonymousGroup = groupService.findByName(context, Group.ANONYMOUS);
authorizeService.createResourcePolicy(
context, newCommunity, anonymousGroup, null, Constants.READ, null);
communityDAO.save(context, newCommunity);
context.addEvent(
new Event(
Event.CREATE,
Constants.COMMUNITY,
newCommunity.getID(),
newCommunity.getHandle(),
getIdentifiers(context, newCommunity)));
// if creating a top-level Community, simulate an ADD event at the Site.
if (parent == null) {
context.addEvent(
new Event(
Event.ADD,
Constants.SITE,
siteService.findSite(context).getID(),
Constants.COMMUNITY,
newCommunity.getID(),
newCommunity.getHandle(),
getIdentifiers(context, newCommunity)));
}
log.info(
LogManager.getHeader(context, "create_community", "community_id=" + newCommunity.getID())
+ ",handle="
+ newCommunity.getHandle());
return newCommunity;
}