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

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