gerrit.simantics Code Review - simantics/sysdyn.git/blob

   1 /*******************************************************************************\r
   2  * Copyright (c) 2010, 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.sysdyn.ui.properties.widgets.modules;\r
  13 \r
  14 import org.simantics.databoard.Bindings;\r
  15 import org.simantics.db.ReadGraph;\r
  16 import org.simantics.db.Resource;\r
  17 import org.simantics.db.WriteGraph;\r
  18 import org.simantics.db.common.request.WriteRequest;\r
  19 import org.simantics.db.exception.DatabaseException;\r
  20 import org.simantics.db.request.Read;\r
  21 import org.simantics.layer0.Layer0;\r
  22 import org.simantics.sysdyn.SysdynResource;\r
  23 import org.simantics.ui.SimanticsUI;\r
  24 \r
  25 public class ReferenceRow {\r
  26 \r
  27     Resource variable, module, dependency;\r
  28     String name;\r
  29 \r
  30     public ReferenceRow(Resource module, Resource dependency, Resource variable) {\r
  31         this.module = module;\r
  32         this.variable = variable;\r
  33         this.dependency = dependency;\r
  34     }\r
  35 \r
  36 \r
  37     public Resource getModule() {\r
  38         return this.module;\r
  39     }\r
  40 \r
  41     public Resource getVariable() {\r
  42         return this.variable;\r
  43     }\r
  44 \r
  45     public Resource getDependency() {\r
  46         return this.dependency;\r
  47     }\r
  48 \r
  49     public String getName() {\r
  50         String name = null;\r
  51         try {\r
  52             name = SimanticsUI.getSession().syncRequest(new Read<String>() {\r
  53 \r
  54                 @Override\r
  55                 public String perform(ReadGraph graph) throws DatabaseException {\r
  56                     return (String)graph.getRelatedValue(getVariable(), Layer0.getInstance(graph).HasName);\r
  57                 }\r
  58             });\r
  59         } catch (DatabaseException e) {\r
  60             e.printStackTrace();\r
  61         }\r
  62         return name;\r
  63     }\r
  64 \r
  65     public String getValue() {\r
  66         if(dependency == null) return "";\r
  67 \r
  68         String value = null;\r
  69         try {\r
  70             value = SimanticsUI.getSession().syncRequest(new Read<String>() {\r
  71 \r
  72                 @Override\r
  73                 public String perform(ReadGraph graph) throws DatabaseException {\r
  74                     Layer0 l0 = Layer0.getInstance(graph);\r
  75                     SysdynResource sr = SysdynResource.getInstance(graph);\r
  76                     Resource valueResource = graph.getPossibleObject(dependency, sr.Variable_HasTail);\r
  77                     if(!graph.isInstanceOf(valueResource, sr.Variable))\r
  78                         valueResource = graph.getPossibleObject(dependency, sr.Variable_HasHead);\r
  79                     \r
  80                     if(graph.isInstanceOf(valueResource, sr.Shadow))\r
  81                         valueResource = graph.getPossibleObject(valueResource, sr.Shadow_original);\r
  82                     \r
  83                     if(valueResource == null || !graph.isInstanceOf(valueResource, sr.Variable))\r
  84                         return "";\r
  85                     \r
  86                     return (String)graph.getRelatedValue(valueResource, l0.HasName, Bindings.STRING);\r
  87                 }\r
  88             });\r
  89         } catch (DatabaseException e) {\r
  90             e.printStackTrace();\r
  91         }\r
  92         return value;\r
  93     }\r
  94 \r
  95     public void setRefersTo(final Resource dependency) {\r
  96         if(dependency != null && dependency.equals(this.dependency)) return;\r
  97         SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
  98             @Override\r
  99             public void perform(WriteGraph graph) throws DatabaseException {\r
 100                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 101                 if(getDependency() != null && graph.hasStatement(getDependency(), sr.Dependency_refersTo))\r
 102                     graph.deny(getDependency(), sr.Dependency_refersTo);\r
 103                 if(dependency != null && graph.hasStatement(dependency, sr.Dependency_refersTo))\r
 104                         graph.deny(dependency, sr.Dependency_refersTo);\r
 105                 setDependency(null);\r
 106                 if(dependency != null) {\r
 107                     setDependency(dependency);\r
 108                     graph.claim(getDependency(), SysdynResource.getInstance(graph).Dependency_refersTo, getVariable());\r
 109                 }\r
 110             }\r
 111         });\r
 112     }\r
 113 \r
 114     private void setDependency(Resource dependency) {\r
 115         this.dependency = dependency;\r
 116     }\r
 117 }\r
 118 \r