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.datastructures.Callback;
  16 import org.simantics.utils.ui.ErrorLogger;
  17
  18 /**
  19  * @author Tuukka Lehtonen
  20  */
  21 public class DenyAction extends Action {
  22
  23     private final String virtualGraphId;
  24     private final List<Resource> subjects;
  25     private final String relationURI;
  26
  27     /**
  28      * @param label
  29      * @param image
  30      * @param virtualGraphId
  31      * @param tagURI
  32      * @param tag <code>true</code> to add tag, <code>false</code> to remove tag
  33      * @param input
  34      */
  35     public DenyAction(String label, ImageDescriptor image, String virtualGraphId, String relationURI, List<Resource> subjects) {
  36         super(label, image);
  37
  38         this.virtualGraphId = virtualGraphId;
  39         this.subjects = subjects;
  40         this.relationURI = relationURI;
  41     }
  42
  43     @Override
  44     public void run() {
  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) {
  50                 @Override
  51                 public void perform(WriteGraph graph) throws DatabaseException {
  52                     Resource relation = graph.getResource(relationURI);
  53                     for (Resource subject : subjects)
  54                         graph.deny(subject, relation);
  55                 }
  56             }, new Callback<DatabaseException>() {
  57                 @Override
  58                 public void run(DatabaseException parameter) {
  59                     if (parameter != null)
  60                         ErrorLogger.defaultLogError(parameter);
  61                 }
  62             });
  63         }
  64     }
  65
  66 }