bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/schema/DynamicSimpleLinkType.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012, 2013 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.objmap.graph.schema;\r
  13 \r
  14 import java.lang.reflect.InvocationTargetException;\r
  15 import java.lang.reflect.Method;\r
  16 import java.util.ArrayList;\r
  17 \r
  18 import org.simantics.db.ReadGraph;\r
  19 import org.simantics.db.Resource;\r
  20 import org.simantics.db.WriteGraph;\r
  21 import org.simantics.db.common.utils.NameUtils;\r
  22 import org.simantics.db.exception.DatabaseException;\r
  23 import org.simantics.layer0.Layer0;\r
  24 import org.simantics.objmap.bidirectional.IBidirectionalMappingRule;\r
  25 import org.simantics.objmap.exceptions.MappingException;\r
  26 import org.simantics.objmap.graph.annotations.GetType;\r
  27 import org.simantics.objmap.graph.annotations.SetType;\r
  28 \r
  29 public class DynamicSimpleLinkType<Range> extends SimpleLinkType<Range>{\r
  30 \r
  31         protected Method typeGetter;\r
  32         protected Method typeSetter;\r
  33         \r
  34         public DynamicSimpleLinkType(Resource domainType, Class<?> rangeType, ArrayList<IBidirectionalMappingRule<Resource, Range>> rules) {\r
  35                 super(domainType, rangeType, rules);\r
  36                 findTypeGetter(rangeType);\r
  37         }\r
  38 \r
  39         public DynamicSimpleLinkType(Resource domainType, Class<?> rangeType) {\r
  40                 super(domainType, rangeType);\r
  41                 findTypeGetter(rangeType);\r
  42         }\r
  43         \r
  44         private void findTypeGetter(Class<?> clazz) {\r
  45                 for (Method m : clazz.getDeclaredMethods()) {\r
  46                          m.setAccessible(true);\r
  47                          GetType t = m.getAnnotation(GetType.class);\r
  48                          if (t != null) {\r
  49                                  typeGetter = m;\r
  50                          }\r
  51                          SetType t2 = m.getAnnotation(SetType.class);\r
  52                          if (t2 != null) {\r
  53                                  typeSetter = m;\r
  54                          }\r
  55                 }\r
  56                 if (typeGetter == null || typeSetter == null) {\r
  57                         Class<?> superClazz = clazz.getSuperclass();\r
  58                         if (superClazz != Object.class)\r
  59                                 findTypeGetter(superClazz);\r
  60                         if (typeGetter == null || typeSetter == null) {\r
  61                                 throw new RuntimeException("Cannot find dynamic type methods for class " + clazz.getSimpleName());      \r
  62                         }\r
  63                 }\r
  64                 \r
  65                         \r
  66         }\r
  67         \r
  68         @Override\r
  69     public Resource createDomainElement(WriteGraph g, Range rangeElement)\r
  70             throws MappingException {\r
  71         try {\r
  72                 String typeUri = (String)typeGetter.invoke(rangeElement, (Object[]) null);\r
  73             if(LOGGER.isInfoEnabled())\r
  74                 LOGGER.info("SimpleLinkType.createDomainElement " +\r
  75                         rangeElement.toString()\r
  76                 );\r
  77             Resource actualDomainType = g.getResource(typeUri);\r
  78             Resource result = g.newResource();\r
  79             //g.claim(result, Layer0.getInstance(g).InstanceOf, null, domainType);\r
  80             g.claim(result, Layer0.getInstance(g).InstanceOf, null, actualDomainType);\r
  81             return result;\r
  82         } catch(DatabaseException e) {\r
  83             throw new MappingException(e);\r
  84         } catch (IllegalArgumentException e) {\r
  85                  throw new MappingException(e);\r
  86                 } catch (IllegalAccessException e) {\r
  87                          throw new MappingException(e);\r
  88                 } catch (InvocationTargetException e) {\r
  89                          throw new MappingException(e.getCause());\r
  90                 }\r
  91     }\r
  92         \r
  93          @SuppressWarnings("unchecked")\r
  94         @Override\r
  95             public Range createRangeElement(ReadGraph g, Resource domainElement)\r
  96                     throws MappingException {\r
  97                 try {\r
  98                     if(LOGGER.isInfoEnabled())\r
  99                         try { \r
 100                             LOGGER.info("SimpleLinkType.createRangeElement " +\r
 101                                         NameUtils.getSafeName(g, domainElement)\r
 102                                     );\r
 103                         } catch(DatabaseException e) {\r
 104                             throw new MappingException(e);\r
 105                         }\r
 106                    Range r =  (Range)rangeType.newInstance();\r
 107                    Resource type = g.getSingleType(domainElement, domainType);\r
 108                    String uri = g.getURI(type);\r
 109                    typeSetter.invoke(r, uri);\r
 110                    return r;\r
 111                 } catch (InstantiationException e) {\r
 112                     throw new MappingException(e);\r
 113                 } catch (IllegalAccessException e) {\r
 114                     throw new MappingException(e);\r
 115                 } catch (DatabaseException e) {\r
 116                         throw new MappingException(e);\r
 117                         } catch (IllegalArgumentException e) {\r
 118                                 throw new MappingException(e);\r
 119                         } catch (InvocationTargetException e) {\r
 120                                 throw new MappingException(e.getCause());\r
 121                         } \r
 122             }\r
 123 \r
 124 }\r