bundles/org.simantics.event/src/org/simantics/event/view/handler/DenyAction.java

   1 package org.simantics.event.view.handler;
   2
   3 import java.util.List;
   4
   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.ui.ErrorLogger;
  16
  17 /**
  18  * @author Tuukka Lehtonen
  19  */
  20 public class DenyAction extends Action {
  21
  22     private final String virtualGraphId;
  23     private final List<Resource> subjects;
  24     private final String relationURI;
  25
  26     /**
  27      * @param label
  28      * @param image
  29      * @param virtualGraphId
  30      * @param tagURI
  31      * @param tag <code>true</code> to add tag, <code>false</code> to remove tag
  32      * @param input
  33      */
  34     public DenyAction(String label, ImageDescriptor image, String virtualGraphId, String relationURI, List<Resource> subjects) {
  35         super(label, image);
  36
  37         this.virtualGraphId = virtualGraphId;
  38         this.subjects = subjects;
  39         this.relationURI = relationURI;
  40     }
  41
  42     @Override
  43     public void run() {
  44         Session session = Simantics.peekSession();
  45         if (session != null) {
  46             VirtualGraph vg = virtualGraphId == null ? null :
  47                 session.getService(VirtualGraphSupport.class).getWorkspacePersistent(virtualGraphId);
  48             session.asyncRequest(new WriteRequest(vg) {
  49                 @Override
  50                 public void perform(WriteGraph graph) throws DatabaseException {
  51                     Resource relation = graph.getResource(relationURI);
  52                     for (Resource subject : subjects)
  53                         graph.deny(subject, relation);
  54                 }
  55             }, e -> {
  56                 if (e != null)
  57                     ErrorLogger.defaultLogError(e);
  58             });
  59         }
  60     }
  61
  62 }