bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/rules/domain/CompoundValueAccessor.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2013 Association for Decentralized Information Management
   3  * in 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.rules.domain;
  13
  14 import java.util.Arrays;
  15 import java.util.Collection;
  16 import java.util.HashMap;
  17 import java.util.Map;
  18
  19 import org.simantics.db.ReadGraph;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.Statement;
  22 import org.simantics.db.WriteGraph;
  23 import org.simantics.db.exception.DatabaseException;
  24 import org.simantics.layer0.Layer0;
  25 import org.simantics.objmap.exceptions.MappingException;
  26 import org.simantics.objmap.graph.annotations.factories.CompoundRelatedGetSetValueRuleFactory;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 /**
  31  *
  32  * @author Marko Luukkainen
  33  */
  34 public class CompoundValueAccessor implements IDomainAccessor<Resource,Object> {
  35
  36     static final Logger LOGGER = LoggerFactory.getLogger(CompoundValueAccessor.class);
  37
  38         Resource objRelation;
  39         Resource objType;
  40         Resource valRelation;
  41
  42         public CompoundValueAccessor(Resource objRelation, Resource objType, Resource valRelation) {
  43                 this.objRelation = objRelation;
  44                 this.objType = objType;
  45                 this.valRelation = valRelation;
  46         }
  47
  48         @Override
  49         public Object get(ReadGraph g, Resource element) throws MappingException {
  50                 try {
  51                         Layer0 l0 = Layer0.getInstance(g);
  52                     LOGGER.info("        CompoundValueAccessor.get");
  53                     Collection<Statement> coll = g.getStatements(element, objRelation);
  54                     Map<String,Object> map = new HashMap<String, Object>();
  55                     for (Statement c : coll) {
  56                         String name = g.getRelatedValue(c.getObject(), l0.HasName);
  57                         if (!map.containsKey(name) || !c.isAsserted(element))
  58                                 map.put(name, g.getRelatedValue(c.getObject(), valRelation));
  59                     }
  60                         return map;
  61                 } catch (DatabaseException e) {
  62                         throw new MappingException(e);
  63                 }
  64         }
  65
  66         @Override
  67         public boolean set(WriteGraph g, Resource element, Object v)
  68                         throws MappingException {
  69                 try {
  70                         Layer0 l0 = Layer0.getInstance(g);
  71                     LOGGER.info("        CompoundValueAccessor.set");
  72                     @SuppressWarnings("unchecked")
  73                     Map<String,Object> values = (Map<String, Object>)v;
  74
  75                     Collection<Statement> coll = g.getStatements(element, objRelation);
  76                     Map<String,Statement> stmMap = new HashMap<String, Statement>();
  77                     Map<String,Object> valueMap = new HashMap<String, Object>();
  78                     for (Statement c : coll) {
  79                         String name = g.getRelatedValue(c.getObject(), l0.HasName);
  80                         if (!stmMap.containsKey(name) || !c.isAsserted(element)) {
  81                                 stmMap.put(name, c);
  82                                 valueMap.put(name, g.getRelatedValue(c.getObject(), valRelation));
  83                         }
  84                     }
  85                     boolean changed = false;
  86                     for (String key : values.keySet()) {
  87                         Object value = values.get(key);
  88                         if (value.equals(valueMap.get(key)))
  89                                 continue;
  90                         changed = true;
  91                         Statement stm = stmMap.get(key);
  92                         if (stm == null || stm.isAsserted(element)) {
  93                                 Resource obj = g.newResource();
  94                                 g.claim(obj, l0.InstanceOf, objType);
  95                                 g.claimLiteral(obj, l0.HasName, key);
  96                                 g.claim(element, objRelation, obj);
  97                                 stm = getStatement(g, element, objRelation, obj);
  98                         }
  99
 100                         Statement valueStatement = g.getPossibleStatement(stm.getObject(), valRelation);
 101                         Resource valueType = CompoundRelatedGetSetValueRuleFactory.dataTypeOfClass(g, value.getClass());
 102                                 if(valueStatement == null) {
 103
 104                                         Resource valueResource = g.newResource();
 105                                         g.claim(valueResource, Layer0.getInstance(g).InstanceOf, null,  valueType);
 106                                         g.claim(stm.getObject(), valRelation, valueResource);
 107                                         g.claimValue(valueResource, value);
 108                                 } else {
 109
 110
 111                                         if (!valueStatement.isAsserted(stm.getObject()))
 112                                                 g.claimValue(valueStatement.getObject(), value);
 113                                         else {
 114                                                 Resource valueResource = g.newResource();
 115                                                 g.claim(valueResource, Layer0.getInstance(g).InstanceOf, null,
 116                                                                 valueType);
 117                                                 g.claim(stm.getObject(), valRelation, valueResource);
 118                                                 g.claimValue(valueResource, value);
 119                                         }
 120                                 }
 121                     }
 122                     return changed;
 123
 124                 } catch (DatabaseException e) {
 125                         throw new MappingException(e);
 126                 }
 127
 128         }
 129
 130         private Statement getStatement(ReadGraph g, Resource s, Resource p, Resource o) throws DatabaseException{
 131                 for (Statement stm : g.getStatements(s, p)) {
 132                         if (stm.getObject().equals(o))
 133                                 return stm;
 134                 }
 135                 return null;
 136         }
 137
 138         private boolean equals(Object o1, Object o2) {
 139                 if (o1 instanceof boolean[])
 140                         Arrays.equals((boolean[])o1,(boolean[])o2);
 141                 if (o1 instanceof int[])
 142                         Arrays.equals((int[])o1,(int[])o2);
 143                 if (o1 instanceof float[])
 144                         Arrays.equals((float[])o1,(float[])o2);
 145                 if (o1 instanceof double[])
 146                         Arrays.equals((double[])o1,(double[])o2);
 147                 if (o1 instanceof byte[])
 148                         Arrays.equals((byte[])o1,(byte[])o2);
 149                 return o1.equals(o2);
 150
 151         }
 152
 153 }