bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/contribution/IssueContextDropAction.java

   1 package org.simantics.issues.ui.contribution;
   2
   3 import java.util.List;
   4
   5 import org.simantics.db.ReadGraph;
   6 import org.simantics.db.Resource;
   7 import org.simantics.db.Session;
   8 import org.simantics.db.WriteGraph;
   9 import org.simantics.db.common.request.WriteRequest;
  10 import org.simantics.db.exception.DatabaseException;
  11 import org.simantics.db.layer0.SelectionHints;
  12 import org.simantics.db.layer0.adapter.DropActionFactory;
  13 import org.simantics.issues.ontology.IssueResource;
  14 import org.simantics.modeling.PropertyVariables;
  15 import org.simantics.utils.datastructures.Callback;
  16 import org.simantics.utils.ui.ErrorLogger;
  17 import org.simantics.utils.ui.ISelectionUtils;
  18
  19 /**
  20  * @author Tuukka Lehtonen
  21  */
  22 public class IssueContextDropAction implements DropActionFactory {
  23
  24     @Override
  25     public Runnable create(ReadGraph g, Object target, Object source, int operation) throws DatabaseException {
  26         //System.out.println("DROP: " + source + " -> " + target);
  27
  28         final Resource issue= ISelectionUtils.getSinglePossibleKey(target, SelectionHints.KEY_MAIN, Resource.class);
  29         if (issue == null)
  30             return null;
  31
  32         final List<PropertyVariables> vars = ISelectionUtils.getPossibleKeys(source, SelectionHints.KEY_MAIN, PropertyVariables.class);
  33         if (!vars.isEmpty()) {
  34             //System.out.println("TODO: add property container to context");
  35         } else {
  36             List<Resource> ctx = ISelectionUtils.getPossibleKeys(source, SelectionHints.KEY_MAIN, Resource.class);
  37             if (!ctx.isEmpty())
  38                 addToIssueContext(g.getSession(), issue, ctx);
  39         }
  40
  41         return null;
  42     }
  43
  44     private void addToIssueContext(Session session, final Resource issue, final List<Resource> contexts) {
  45         session.asyncRequest(new WriteRequest() {
  46             @Override
  47             public void perform(WriteGraph graph) throws DatabaseException {
  48                 final IssueResource ISSUE = IssueResource.getInstance(graph);
  49                 for (Resource ctx : contexts) {
  50                     graph.claim(issue, ISSUE.Issue_HasContext, ISSUE.Issue_HasContext, ctx);
  51                 }
  52             }
  53         }, e -> {
  54             if (e != null)
  55                 ErrorLogger.defaultLogError(e);
  56         });
  57     }
  58
  59 }