/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS,
* <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) 2008 frentix GmbH, Switzerland<br>
* http://www.frentix.com,
* <p>
*/
package org.olat.catalog.ui;
import java.util.ArrayList;
import java.util.List;
import org.olat.basesecurity.ManagerFactory;
import org.olat.catalog.CatalogEntry;
import org.olat.catalog.CatalogManager;
import org.olat.core.gui.UserRequest;
import org.olat.core.gui.components.Component;
import org.olat.core.gui.components.tree.GenericTreeNode;
import org.olat.core.gui.components.tree.SelectionTree;
import org.olat.core.gui.components.tree.TreeEvent;
import org.olat.core.gui.components.velocity.VelocityContainer;
import org.olat.core.gui.control.Event;
import org.olat.core.gui.control.WindowControl;
import org.olat.core.gui.control.controller.BasicController;
import org.olat.repository.RepositoryEntry;
/**
* Description:<br>
* This subworkflow creates a selection tree to move a level from within the
* catalog to another level
* <P>
* Events fired by this controller:
* <UL>
* <LI>Event.DONE_EVENT</LI>
* <LI>Event.CANCELLED_EVENT</LI>
* </UL>
* <P>
* Initial Date: 04.06.2008 <br>
*
* @author Florian Gnägi, frentix GmbH
*/
public class CatalogEntryAddController extends BasicController {
private SelectionTree selectionTree;
private VelocityContainer mainVC;
private RepositoryEntry toBeAddedEntry;
/**
* Constructor
*
* @param wControl
* @param ureq
* @param toBeAddedEntry
*/
public CatalogEntryAddController(UserRequest ureq, WindowControl wControl, RepositoryEntry toBeAddedEntry) {
super(ureq, wControl);
this.toBeAddedEntry = toBeAddedEntry;
List<CatalogEntry> catEntryList = CatalogManager.getInstance().getAllCatalogNodes();
mainVC = createVelocityContainer("catMove");
selectionTree = new SelectionTree("catSelection", getTranslator());
selectionTree.addListener(this);
selectionTree.setMultiselect(false);
selectionTree.setFormButtonKey("cat.move.submit");
selectionTree.setShowCancelButton(true);
selectionTree.setTreeModel(new CatalogTreeModel(catEntryList, null, null));
mainVC.put("tree", selectionTree);
putInitialPanel(mainVC);
}
@Override
protected void doDispose() {
this.mainVC = null;
this.selectionTree = null;
}
@Override
public void event(UserRequest ureq, Component source, Event event) {
if (source == selectionTree) {
TreeEvent te = (TreeEvent) event;
if (te.getCommand().equals(TreeEvent.COMMAND_TREENODE_CLICKED)) {
GenericTreeNode node = (GenericTreeNode) selectionTree.getSelectedNode();
CatalogManager cm = CatalogManager.getInstance();
Long newParentId = Long.parseLong(node.getIdent());
CatalogEntry newParent = cm.loadCatalogEntry(newParentId);
// check first if this repo entry is already attached to this new parent
List<CatalogEntry> existingChildren = cm.getChildrenOf(newParent);
for (CatalogEntry existingChild : existingChildren) {
RepositoryEntry existingRepoEntry = existingChild.getRepositoryEntry();
if (existingRepoEntry != null && existingRepoEntry.equalsByPersistableKey(toBeAddedEntry)) {
showError("catalog.tree.add.already.exists", toBeAddedEntry.getDisplayname());
return;
}
}
CatalogEntry newEntry = cm.createCatalogEntry();
newEntry.setRepositoryEntry(toBeAddedEntry);
newEntry.setName(toBeAddedEntry.getDisplayname());
newEntry.setDescription(toBeAddedEntry.getDescription());
newEntry.setType(CatalogEntry.TYPE_LEAF);
newEntry.setOwnerGroup(ManagerFactory.getManager().createAndPersistSecurityGroup());
// save entry
cm.addCatalogEntry(newParent, newEntry);
fireEvent(ureq, Event.DONE_EVENT);
} else if (te.getCommand().equals(TreeEvent.COMMAND_CANCELLED)) {
fireEvent(ureq, Event.CANCELLED_EVENT);
}
}
}
/**
* Internal helper to get all children for a given list of parent category items
* @param parents
* @return
*/
private List<CatalogEntry> fetchChildren(List<CatalogEntry> parents) {
List<CatalogEntry> tmp = new ArrayList<CatalogEntry>();
for (CatalogEntry child : parents) {
tmp.add(child);
if (child.getType() == CatalogEntry.TYPE_NODE) {
tmp.addAll(fetchChildren((List<CatalogEntry>) CatalogManager.getInstance().getChildrenOf(child)));
}
}
return tmp;
}
/**
* Internal helper method to get list of catalog entries where current user is
* in the owner group
*
* @param ureq
* @return List of repo entries
*/
private List<CatalogEntry> getOwnedEntries(UserRequest ureq) {
if (ureq.getUserSession().getRoles().isOLATAdmin()) {
return (List<CatalogEntry>) CatalogManager.getInstance().getRootCatalogEntries();
} else {
return (List<CatalogEntry>) CatalogManager.getInstance().getCatalogEntriesOwnedBy(ureq.getIdentity());
}
}
}