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