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.apache.log4j.Logger;
  20 import org.simantics.db.ReadGraph;
  21 import org.simantics.db.Resource;
  22 import org.simantics.db.Statement;
  23 import org.simantics.db.WriteGraph;
  24 import org.simantics.db.exception.DatabaseException;
  25 import org.simantics.layer0.Layer0;
  26 import org.simantics.objmap.exceptions.MappingException;
  27 import org.simantics.objmap.graph.annotations.factories.CompoundRelatedGetSetValueRuleFactory;
  28
  29 /**
  30  *
  31  * @author Marko Luukkainen
  32  */
  33 public class CompoundValueAccessor implements IDomainAccessor<Resource,Object> {
  34
  35     static Logger LOGGER = Logger.getLogger("org.simantics.objmap");
  36
  37         Resource objRelation;
  38         Resource objType;
  39         Resource valRelation;
  40
  41         public CompoundValueAccessor(Resource objRelation, Resource objType, Resource valRelation) {
  42                 this.objRelation = objRelation;
  43                 this.objType = objType;
  44                 this.valRelation = valRelation;
  45         }
  46
  47         @Override
  48         public Object get(ReadGraph g, Resource element) throws MappingException {
  49                 try {
  50                         Layer0 l0 = Layer0.getInstance(g);
  51                     LOGGER.info("        CompoundValueAccessor.get");
  52                     Collection<Statement> coll = g.getStatements(element, objRelation);
  53                     Map<String,Object> map = new HashMap<String, Object>();
  54                     for (Statement c : coll) {
  55                         String name = g.getRelatedValue(c.getObject(), l0.HasName);
  56                         if (!map.containsKey(name) || !c.isAsserted(element))
  57                                 map.put(name, g.getRelatedValue(c.getObject(), valRelation));
  58                     }
  59                         return map;
  60                 } catch (DatabaseException e) {
  61                         throw new MappingException(e);
  62                 }
  63         }
  64
  65         @Override
  66         public boolean set(WriteGraph g, Resource element, Object v)
  67                         throws MappingException {
  68                 try {
  69                         Layer0 l0 = Layer0.getInstance(g);
  70                     LOGGER.info("        CompoundValueAccessor.set");
  71                     @SuppressWarnings("unchecked")
  72                     Map<String,Object> values = (Map<String, Object>)v;
  73
  74                     Collection<Statement> coll = g.getStatements(element, objRelation);
  75                     Map<String,Statement> stmMap = new HashMap<String, Statement>();
  76                     Map<String,Object> valueMap = new HashMap<String, Object>();
  77                     for (Statement c : coll) {
  78                         String name = g.getRelatedValue(c.getObject(), l0.HasName);
  79                         if (!stmMap.containsKey(name) || !c.isAsserted(element)) {
  80                                 stmMap.put(name, c);
  81                                 valueMap.put(name, g.getRelatedValue(c.getObject(), valRelation));
  82                         }
  83                     }
  84                     boolean changed = false;
  85                     for (String key : values.keySet()) {
  86                         Object value = values.get(key);
  87                         if (value.equals(valueMap.get(key)))
  88                                 continue;
  89                         changed = true;
  90                         Statement stm = stmMap.get(key);
  91                         if (stm == null || stm.isAsserted(element)) {
  92                                 Resource obj = g.newResource();
  93                                 g.claim(obj, l0.InstanceOf, objType);
  94                                 g.claimLiteral(obj, l0.HasName, key);
  95                                 g.claim(element, objRelation, obj);
  96                                 stm = getStatement(g, element, objRelation, obj);
  97                         }
  98
  99                         Statement valueStatement = g.getPossibleStatement(stm.getObject(), valRelation);
 100                         Resource valueType = CompoundRelatedGetSetValueRuleFactory.dataTypeOfClass(g, value.getClass());
 101                                 if(valueStatement == null) {
 102
 103                                         Resource valueResource = g.newResource();
 104                                         g.claim(valueResource, Layer0.getInstance(g).InstanceOf, null,  valueType);
 105                                         g.claim(stm.getObject(), valRelation, valueResource);
 106                                         g.claimValue(valueResource, value);
 107                                 } else {
 108
 109
 110                                         if (!valueStatement.isAsserted(stm.getObject()))
 111                                                 g.claimValue(valueStatement.getObject(), value);
 112                                         else {
 113                                                 Resource valueResource = g.newResource();
 114                                                 g.claim(valueResource, Layer0.getInstance(g).InstanceOf, null,
 115                                                                 valueType);
 116                                                 g.claim(stm.getObject(), valRelation, valueResource);
 117                                                 g.claimValue(valueResource, value);
 118                                         }
 119                                 }
 120                     }
 121                     return changed;
 122
 123                 } catch (DatabaseException e) {
 124                         throw new MappingException(e);
 125                 }
 126
 127         }
 128
 129         private Statement getStatement(ReadGraph g, Resource s, Resource p, Resource o) throws DatabaseException{
 130                 for (Statement stm : g.getStatements(s, p)) {
 131                         if (stm.getObject().equals(o))
 132                                 return stm;
 133                 }
 134                 return null;
 135         }
 136
 137         private boolean equals(Object o1, Object o2) {
 138                 if (o1 instanceof boolean[])
 139                         Arrays.equals((boolean[])o1,(boolean[])o2);
 140                 if (o1 instanceof int[])
 141                         Arrays.equals((int[])o1,(int[])o2);
 142                 if (o1 instanceof float[])
 143                         Arrays.equals((float[])o1,(float[])o2);
 144                 if (o1 instanceof double[])
 145                         Arrays.equals((double[])o1,(double[])o2);
 146                 if (o1 instanceof byte[])
 147                         Arrays.equals((byte[])o1,(byte[])o2);
 148                 return o1.equals(o2);
 149
 150         }
 151
 152 }