bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/SeverityFolderRule.java

   1 package org.simantics.issues.ui;
   2
   3 import java.util.Collection;
   4 import java.util.Collections;
   5 import java.util.Set;
   6
   7 import org.simantics.browsing.ui.model.children.ChildRule;
   8 import org.simantics.db.ReadGraph;
   9 import org.simantics.db.Resource;
  10 import org.simantics.db.exception.DatabaseException;
  11 import org.simantics.db.layer0.variable.Variable;
  12 import org.simantics.issues.common.IssuesOfSeverity;
  13 import org.simantics.issues.ui.ontology.IssueUIResource;
  14
  15 public class SeverityFolderRule implements ChildRule {
  16
  17         final Resource rule;
  18
  19         public SeverityFolderRule(Resource rule) {
  20                 this.rule = rule;
  21         }
  22
  23     @Override
  24     public boolean isCompatible(Class<?> contentType) {
  25         return contentType.equals(Resource.class);
  26     }
  27
  28     @Override
  29     public Collection<?> getChildren(ReadGraph graph, Object parent) throws DatabaseException {
  30
  31         IssueUIResource UI = IssueUIResource.getInstance(graph);
  32         Resource project = (Resource)parent;
  33         Resource severity = graph.getSingleObject(rule, UI.IssueBrowseContext_SeverityFolderRule_HasSeverity);
  34         Set<Variable> issues = graph.syncRequest(new IssuesOfSeverity(project, severity));
  35         if(!issues.isEmpty()) return Collections.singleton(project);
  36         else return Collections.emptyList();
  37
  38     }
  39
  40     @Override
  41     public Collection<?> getParents(ReadGraph graph, Object child)
  42             throws DatabaseException {
  43         return Collections.singleton(child);
  44     }
  45
  46
  47 }