bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/annotations/factories/RelatedGetSetValueRuleFactory.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2013 Association for Decentralized Information Management in
   3  * 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.objmap.graph.annotations.factories;
  13
  14 import java.lang.annotation.Annotation;
  15 import java.lang.reflect.Method;
  16
  17 import org.simantics.databoard.Bindings;
  18 import org.simantics.databoard.binding.Binding;
  19 import org.simantics.databoard.binding.error.BindingConstructionException;
  20 import org.simantics.databoard.binding.reflection.BindingRequest;
  21 import org.simantics.db.ReadGraph;
  22 import org.simantics.db.Resource;
  23 import org.simantics.db.exception.DatabaseException;
  24 import org.simantics.layer0.Layer0;
  25 import org.simantics.objmap.bidirectional.IBidirectionalMappingRule;
  26 import org.simantics.objmap.graph.annotations.RelatedGetValue;
  27 import org.simantics.objmap.graph.annotations.RelatedSetValue;
  28 import org.simantics.objmap.graph.rules.ValueRule;
  29 import org.simantics.objmap.graph.rules.adapters.IdentityAdapter;
  30 import org.simantics.objmap.graph.rules.adapters.ValueAdapter;
  31 import org.simantics.objmap.graph.rules.domain.RelatedValueAccessor;
  32 import org.simantics.objmap.graph.rules.factory.IGetSetRuleFactory;
  33 import org.simantics.objmap.graph.rules.range.AdaptedRangeAccessor;
  34 import org.simantics.objmap.graph.rules.range.GetSetValueAccessor;
  35 import org.simantics.objmap.graph.rules.range.IRangeAccessor;
  36
  37 /**
  38  * Rule factory for mapped value using Getter/Setter-methods.
  39  *
  40  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
  41  *
  42  */
  43 public class RelatedGetSetValueRuleFactory<Range> implements IGetSetRuleFactory<Resource,Range> {
  44
  45         @Override
  46         public IBidirectionalMappingRule<Resource, Range> create(ReadGraph g, Annotation annotation,
  47                         Method getter, Method setter)
  48                         throws DatabaseException {
  49                 RelatedGetValue getterAnn = (RelatedGetValue)annotation;
  50
  51                 Class<? extends ValueAdapter> adapterClass = getterAnn.adapter();
  52                  IRangeAccessor<Range,Object> rangeAccessor = new GetSetValueAccessor<Range,Object>(getter, setter);
  53         Resource valueType;
  54         Binding valueBinding = null;
  55         if (adapterClass == IdentityAdapter.class) {
  56             try {
  57                 valueBinding = Bindings.getBinding(BindingRequest.create(getter));
  58             } catch (BindingConstructionException e) {
  59                 return null;
  60             }
  61             valueType = DataTypeUtils.dataTypeOfDatatype(g, valueBinding.type());
  62         } else {
  63                 try{
  64                          ValueAdapter adapter = adapterClass.newInstance();
  65                  rangeAccessor = new AdaptedRangeAccessor<Range>(rangeAccessor, adapter);
  66                  valueType = adapter.rangeTypeToDomainType(g, getter.getReturnType());
  67              } catch (InstantiationException e) {
  68                  throw new RuntimeException(e);
  69              } catch (IllegalAccessException e) {
  70                  throw new RuntimeException(e);
  71              }
  72         }
  73                 return new ValueRule<Resource,Range>(new RelatedValueAccessor(g.getResource(getterAnn.value()), valueType, valueBinding),
  74                                         rangeAccessor);
  75         }
  76
  77         @Override
  78         public boolean isSetter(Annotation getterAnnotation, Annotation annotation) {
  79                 RelatedGetValue getterAnn = (RelatedGetValue)getterAnnotation;
  80                 RelatedSetValue setterAnn = (RelatedSetValue)annotation;
  81                 return getterAnn.value().equals(setterAnn.value());
  82         }
  83
  84         public static Resource dataTypeOfClass(ReadGraph g, Class<?> clazz) {
  85         Layer0 b = Layer0.getInstance(g);
  86         if(clazz.equals(Double.class) || clazz.equals(double.class))
  87             return b.Double;
  88         else if(clazz.equals(String.class))
  89             return b.String;
  90         else if(clazz.equals(Integer.class) || clazz.equals(int.class))
  91             return b.Integer;
  92         else if(clazz.equals(Float.class) || clazz.equals(float.class))
  93             return b.Float;
  94         else if(clazz.equals(Boolean.class) || clazz.equals(boolean.class))
  95             return b.Boolean;
  96         else if(clazz.equals(Long.class) || clazz.equals(long.class))
  97             return b.Long;
  98         else if(clazz.equals(Byte.class) || clazz.equals(byte.class))
  99             return b.Byte;
 100
 101         else if(clazz.equals(double[].class))
 102             return b.DoubleArray;
 103         else if(clazz.equals(int[].class))
 104             return b.IntegerArray;
 105         else if(clazz.equals(byte[].class))
 106             return b.ByteArray;
 107         else if(clazz.equals(float[].class))
 108             return b.FloatArray;
 109         else if(clazz.equals(boolean[].class))
 110             return b.BooleanArray;
 111         else if(clazz.equals(String[].class))
 112             return b.StringArray;
 113         else if(clazz.equals(long[].class))
 114             return b.LongArray;
 115         else {
 116                 System.out.println("Couldn't find a data type for " + clazz);
 117             return null;
 118         }
 119     }
 120
 121 }