bundles/org.simantics.event/src/org/simantics/event/view/handler/TagAction.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.event.ontology.EventResource;
  16
  17 /**
  18  * @author Tuukka Lehtonen
  19  */
  20 public class TagAction extends Action {
  21
  22     private final String virtualGraphId;
  23     private final String tagURI;
  24     private final boolean tag;
  25     protected final List<Resource> resources;
  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 TagAction(String label, ImageDescriptor image, String virtualGraphId, String tagURI, boolean tag, List<Resource> input) {
  36         super(label, image);
  37
  38         this.virtualGraphId = virtualGraphId;
  39         this.tagURI = tagURI;
  40         this.tag = tag;
  41         this.resources = input;
  42     }
  43
  44     @Override
  45     public void run() {
  46         Session session = Simantics.peekSession();
  47         if (session == null) return;
  48
  49         final VirtualGraph vg = virtualGraphId == null ? null :
  50             session.getService(VirtualGraphSupport.class).getWorkspacePersistent(virtualGraphId);
  51         session.asyncRequest(new WriteRequest(vg) {
  52             @Override
  53             public void perform(WriteGraph graph) throws DatabaseException {
  54                 // Write tags
  55                 Resource tr = graph.getResource(tagURI);
  56                 for (Resource r : resources) {
  57                     if (tag)
  58                         graph.claim(r, tr, tr, r);
  59                     else
  60                         graph.deny(r, tr, r);
  61                 }
  62
  63                 // Set milestone labels for all events of the event log
  64                 if (tagURI.equals(EventResource.URIs.Milestone)) {
  65                     CorrectMilestoneLabelsAction.correctMilestoneLabels(graph, vg, resources);
  66                 }
  67
  68                 // Perform any extra writes desired
  69                 postTagWrite(graph);
  70             }
  71         });
  72
  73     }
  74
  75     public void postTagWrite(WriteGraph graph) throws DatabaseException {
  76     }
  77
  78 }