bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/SCLTest.java

   1 package org.simantics.modeling.adapters;
   2
   3 import org.simantics.browsing.ui.model.tests.Test;
   4 import org.simantics.db.ReadGraph;
   5 import org.simantics.db.Resource;
   6 import org.simantics.db.exception.DatabaseException;
   7 import org.simantics.db.layer0.variable.Variable;
   8 import org.simantics.db.layer0.variable.Variables;
   9 import org.simantics.modeling.ModelingResources;
  10 import org.simantics.scl.runtime.SCLContext;
  11 import org.simantics.scl.runtime.function.Function1;
  12
  13 public class SCLTest implements Test {
  14
  15     private Resource rule;
  16
  17     public SCLTest(ReadGraph graph, Resource rule) {
  18         this.rule = rule;
  19     }
  20
  21     @Override
  22     public boolean isCompatible(Class<?> contentType) {
  23         return contentType.equals(Resource.class) || contentType.equals(Variable.class);
  24     }
  25
  26     @Override
  27     public boolean test(ReadGraph graph, Object content) throws DatabaseException {
  28
  29         ModelingResources MOD = ModelingResources.getInstance(graph);
  30
  31         Variable ruleVariable = Variables.getVariable(graph, rule);
  32         Function1<Object,Boolean> test = ruleVariable.getPossiblePropertyValue(graph, MOD.SCLTest_test);
  33         if(test == null) return false;
  34
  35         SCLContext sclContext = SCLContext.getCurrent();
  36         Object oldGraph = sclContext.get("graph");
  37         try {
  38             sclContext.put("graph", graph);
  39             Object value = test.apply((Resource)content);
  40             return (Boolean)value;
  41         } catch (Throwable t) {
  42                 throw new DatabaseException(t);
  43         } finally {
  44             sclContext.put("graph", oldGraph);
  45         }
  46
  47     }
  48
  49 }