bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/browsecontexts/ContributedBrowseContexts.java

   1 package org.simantics.browsing.ui.model.browsecontexts;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.Collections;
   6
   7 import org.simantics.databoard.Bindings;
   8 import org.simantics.db.ReadGraph;
   9 import org.simantics.db.Resource;
  10 import org.simantics.db.common.request.TernaryRead;
  11 import org.simantics.db.exception.DatabaseException;
  12 import org.simantics.db.layer0.adapter.Instances;
  13 import org.simantics.utils.datastructures.Arrays;
  14 import org.simantics.viewpoint.ontology.ViewpointResource;
  15
  16 public class ContributedBrowseContexts extends TernaryRead<Resource,Resource,String,Collection<Resource>> {
  17
  18     public ContributedBrowseContexts(Resource indexRoot, Resource context, String uiContext) {
  19         super(indexRoot, context, uiContext);
  20     }
  21
  22     @Override
  23     public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {
  24         ViewpointResource VP = ViewpointResource.getInstance(graph);
  25         Instances query = graph.adapt(VP.BrowseContextContribution, Instances.class);
  26         Collection<Resource> result = new ArrayList<>();
  27         for(Resource contribution : query.find(graph, parameter)) {
  28             Collection<Resource> acceptedTypes = graph.getObjects(contribution, VP.BrowseContextContribution_HasType);
  29             Collection<Resource> allTypes = graph.getTypes(parameter2);
  30             if(Collections.disjoint(acceptedTypes, allTypes))
  31                 continue;
  32
  33             Resource context = graph.getPossibleObject(contribution, VP.BrowseContextContribution_HasBrowseContext);
  34             if(context == null)
  35                 continue;
  36
  37             String[] allowedContexts = graph.getPossibleRelatedValue(contribution, VP.BrowseContextContribution_allowedUIContexts, Bindings.STRING_ARRAY);
  38             if(allowedContexts != null && !Arrays.contains(allowedContexts, parameter3))
  39                 continue;
  40
  41             result.add(context);
  42         }
  43         return result;
  44     }
  45
  46 }