bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/ElementParameterRequest.java

   1 package org.simantics.diagram.adapter;
   2
   3 import java.util.HashMap;
   4 import java.util.Map;
   5
   6 import org.simantics.db.ReadGraph;
   7 import org.simantics.db.Resource;
   8 import org.simantics.db.common.request.ResourceRead;
   9 import org.simantics.db.exception.DatabaseException;
  10 import org.simantics.db.layer0.variable.Variable;
  11 import org.simantics.db.layer0.variable.Variables;
  12 import org.simantics.diagram.stubs.DiagramResource;
  13
  14 class ElementParameterRequest extends ResourceRead<Map<String,Object>> {
  15
  16         protected ElementParameterRequest(Resource resource) {
  17                 super(resource);
  18         }
  19
  20         @Override
  21         public Map<String, Object> perform(ReadGraph graph) throws DatabaseException {
  22                 Variable var = Variables.getPossibleVariable(graph, resource);
  23                 if(var == null) return null;
  24                 Map<String,Object> result = null;
  25                 for(Variable property : var.getProperties(graph, DiagramResource.URIs.DefinedElement_Parameter)) {
  26                         Object value = property.getPossibleValue(graph);
  27                         if(value != null) {
  28                                 if(result == null) result = new HashMap<>();
  29                                 result.put(property.getName(graph), value);
  30                         }
  31                 }
  32                 return result;
  33         }
  34
  35 }