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

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