bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/PossibleActiveVariableFromVariable.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.layer0.request;
  13
  14 import org.simantics.db.ReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.common.request.UnaryRead;
  17 import org.simantics.db.exception.DatabaseException;
  18 import org.simantics.db.layer0.variable.Variable;
  19 import org.simantics.db.layer0.variable.Variables;
  20 import org.simantics.layer0.Layer0;
  21 import org.simantics.simulation.ontology.SimulationResource;
  22
  23 public class PossibleActiveVariableFromVariable extends UnaryRead<Variable, Variable> {
  24
  25     public PossibleActiveVariableFromVariable(Variable configurationVariable) {
  26         super(configurationVariable);
  27     }
  28
  29     @Override
  30     public Variable perform(ReadGraph graph) throws DatabaseException {
  31
  32         Layer0 b = Layer0.getInstance(graph);
  33         SimulationResource SIMU = SimulationResource.getInstance(graph);
  34         Resource result = null;
  35
  36         Resource model = Variables.getModel(graph, parameter);
  37         if (model == null)
  38             return null;
  39
  40         for(Resource config : graph.getObjects(model, b.ConsistsOf)) {
  41             if(graph.isInstanceOf(config, SIMU.Experiment)) {
  42                 for(Resource run : graph.getObjects(config, b.ConsistsOf)) {
  43                     if(graph.isInstanceOf(run, SIMU.Run)) {
  44                         if(graph.hasStatement(run, SIMU.IsActive)) {
  45                             if(result != null) return null;
  46                             result = run;
  47                         }
  48                     }
  49                 }
  50             }
  51         }
  52
  53         if(result == null) return null;
  54
  55         return Variables.switchPossibleContext(graph, parameter, result);
  56
  57     }
  58
  59 }