bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/monitor/ResolveMonitorVariable.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012 Association for Decentralized Information Management in\r
   3  * 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.modeling.ui.diagram.monitor;\r
  13 \r
  14 import org.simantics.common.format.Formatter;\r
  15 import org.simantics.databoard.Bindings;\r
  16 import org.simantics.datatypes.literal.DecimalFormatFormatter;\r
  17 import org.simantics.db.ReadGraph;\r
  18 import org.simantics.db.Resource;\r
  19 import org.simantics.db.common.request.BinaryRead;\r
  20 import org.simantics.db.exception.DatabaseException;\r
  21 import org.simantics.db.layer0.exception.VariableException;\r
  22 import org.simantics.db.layer0.variable.RVI;\r
  23 import org.simantics.db.layer0.variable.Variable;\r
  24 import org.simantics.db.layer0.variable.Variables;\r
  25 import org.simantics.diagram.stubs.DiagramResource;\r
  26 import org.simantics.operation.Layer0X;\r
  27 \r
  28 /**\r
  29  * @author Tuukka Lehtonen\r
  30  */\r
  31 public class ResolveMonitorVariable extends BinaryRead<Resource, Resource, MonitorVariable> {\r
  32 \r
  33     public ResolveMonitorVariable(Resource runtimeDiagram, Resource monitorElement) {\r
  34         super(runtimeDiagram, monitorElement);\r
  35     }\r
  36 \r
  37     @Override\r
  38     public MonitorVariable perform(ReadGraph graph) throws DatabaseException {\r
  39         Boolean external = null;\r
  40         DiagramResource DIA = DiagramResource.getInstance(graph);\r
  41 \r
  42         Resource monitorComponent = graph.getPossibleObject(parameter2, DIA.HasMonitorComponent);\r
  43         if (monitorComponent == null)\r
  44             return null;\r
  45 \r
  46         String suffix = graph.getPossibleRelatedValue(parameter2, DIA.HasMonitorSuffix, Bindings.STRING);\r
  47         if (suffix == null)\r
  48             return null;\r
  49 \r
  50         String diagramVariable = graph.getPossibleRelatedValue(parameter, DIA.RuntimeDiagram_HasVariable);\r
  51         if (diagramVariable == null)\r
  52             return null;\r
  53 \r
  54         Variable var = Variables.getPossibleVariable(graph, diagramVariable);\r
  55         if (var == null)\r
  56             return null;\r
  57 \r
  58         Variable component = var.browsePossible(graph, monitorComponent);\r
  59         if (component == null) {\r
  60             // The monitored component is not in this diagram.\r
  61             component = Variables.getPossibleVariable(graph, monitorComponent);\r
  62             if (component == null)\r
  63                 return null;\r
  64 \r
  65             String componentRVI = Variables.getPossibleRVI(graph, component);\r
  66             if (componentRVI == null)\r
  67                 return null;\r
  68 \r
  69             Resource realization = Variables.getRealization(graph, var);\r
  70             String diagramRealizationURI = graph.getPossibleURI(realization);\r
  71             if (diagramRealizationURI == null)\r
  72                 return null;\r
  73 \r
  74             String componentURI = diagramRealizationURI + componentRVI;\r
  75             var = Variables.getPossibleVariable(graph, componentURI);\r
  76             if (var == null)\r
  77                 return null;\r
  78 \r
  79             external = Boolean.TRUE;\r
  80         } else {\r
  81             var = component;\r
  82         }\r
  83 \r
  84         var = var.browsePossible(graph, suffix);\r
  85         if (var == null)\r
  86             return null;\r
  87 \r
  88         Formatter formatter = graph.getPossibleRelatedAdapter(parameter2, DIA.HasFormatter, Formatter.class);\r
  89         if (formatter == null)\r
  90             formatter = new DecimalFormatFormatter();\r
  91 \r
  92         Layer0X L0X = Layer0X.getInstance(graph);\r
  93         String _expression = graph.getPossibleRelatedAdapter(parameter2, L0X.HasExpression, String.class);\r
  94         if(_expression == null) _expression  = "value";\r
  95 \r
  96         RVI rvi = null;\r
  97         try {\r
  98             rvi = Variables.getRVI2(graph, var);\r
  99         } catch (VariableException e) {\r
 100             // No RVI, which is fine for contents that do not originate from the model configuration.\r
 101         }\r
 102 \r
 103         return new MonitorVariable(monitorComponent, formatter, _expression, var, rvi, external);\r
 104     }\r
 105 \r
 106 }