bundles/org.simantics.selectionview/src/org/simantics/selectionview/AbstractTabContribution.java

   1 package org.simantics.selectionview;
   2
   3 import java.lang.reflect.Array;
   4 import java.util.Collection;
   5 import java.util.Objects;
   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.utils.Functions;
  11 import org.simantics.db.exception.DatabaseException;
  12 import org.simantics.layer0.Layer0;
  13
  14 public abstract class AbstractTabContribution<T> implements TabContribution<T> {
  15
  16     protected final Resource configuration;
  17     protected final String uri;
  18
  19     public AbstractTabContribution(ReadGraph graph, Resource configuration) throws DatabaseException {
  20         this.configuration = Objects.requireNonNull(configuration);
  21         this.uri = graph.getURI(configuration);
  22     }
  23
  24     @Override
  25     public boolean accept(ReadGraph graph, Object input) throws DatabaseException {
  26         SelectionViewResources SEL = SelectionViewResources.getInstance(graph);
  27         // Lets see if multi or single support
  28         Boolean multi = graph.getRelatedValue2(configuration, SEL.TabContribution_Multi, Bindings.BOOLEAN);
  29         if (input instanceof Collection<?>) {
  30             Collection<?> inputs = (Collection<?>) input;
  31             if (inputs.isEmpty())
  32                 return false;
  33             if (inputs.size() > 1 && !multi)
  34                 return false;
  35         } else if (input.getClass().isArray()) {
  36             int arrayLength = Array.getLength(input);
  37             if (arrayLength == 0)
  38                 return false;
  39             if (arrayLength > 1 && !multi)
  40                 return false;
  41         }
  42         // HasTest seems to be deprecated but lets support it just for fun
  43         for(Resource r : graph.getObjects(configuration, SEL.TabContribution_HasTest)) {
  44             Boolean pass = Functions.exec(graph, r, graph, input);
  45             if(!pass)
  46                 return false;
  47         }
  48         return true;
  49     }
  50
  51     public abstract void getContributors(ReadGraph graph, T input, Integer priority, String label, Collection<ComparableTabContributor> result) throws DatabaseException;
  52
  53     @Override
  54     public final void contribute(ReadGraph graph, T input, Collection<ComparableTabContributor> result) throws DatabaseException {
  55         Layer0 L0 = Layer0.getInstance(graph);
  56         SelectionViewResources SEL = SelectionViewResources.getInstance(graph);
  57
  58         Integer priority = graph.getPossibleRelatedValue(configuration, SEL.TabContribution_HasPriority, Bindings.INTEGER);
  59         String label = graph.getPossibleRelatedValue(configuration, L0.HasLabel);
  60
  61         getContributors(graph, input, priority, label, result);
  62     }
  63
  64     @Override
  65     public String toString() {
  66         return getClass().getSimpleName() + "[" + uri + "]";
  67     }
  68 }