1 package org.simantics.event.view.handler;
5 import org.eclipse.jface.action.Action;
6 import org.eclipse.jface.resource.ImageDescriptor;
7 import org.simantics.Simantics;
8 import org.simantics.db.Resource;
9 import org.simantics.db.Session;
10 import org.simantics.db.VirtualGraph;
11 import org.simantics.db.WriteGraph;
12 import org.simantics.db.common.request.WriteRequest;
13 import org.simantics.db.exception.DatabaseException;
14 import org.simantics.db.service.VirtualGraphSupport;
15 import org.simantics.utils.datastructures.Callback;
16 import org.simantics.utils.ui.ErrorLogger;
19 * @author Tuukka Lehtonen
21 public class DenyAction extends Action {
23 private final String virtualGraphId;
24 private final List<Resource> subjects;
25 private final String relationURI;
30 * @param virtualGraphId
32 * @param tag <code>true</code> to add tag, <code>false</code> to remove tag
35 public DenyAction(String label, ImageDescriptor image, String virtualGraphId, String relationURI, List<Resource> subjects) {
38 this.virtualGraphId = virtualGraphId;
39 this.subjects = subjects;
40 this.relationURI = relationURI;
45 Session session = Simantics.peekSession();
46 if (session != null) {
47 VirtualGraph vg = virtualGraphId == null ? null :
48 session.getService(VirtualGraphSupport.class).getWorkspacePersistent(virtualGraphId);
49 session.asyncRequest(new WriteRequest(vg) {
51 public void perform(WriteGraph graph) throws DatabaseException {
52 Resource relation = graph.getResource(relationURI);
53 for (Resource subject : subjects)
54 graph.deny(subject, relation);
56 }, new Callback<DatabaseException>() {
58 public void run(DatabaseException parameter) {
59 if (parameter != null)
60 ErrorLogger.defaultLogError(parameter);