bundles/org.simantics.structural2/src/org/simantics/structural2/Functions.java

   1 package org.simantics.structural2;
   2
   3
   4 import java.util.ArrayList;
   5 import java.util.Collection;
   6 import java.util.Collections;
   7 import java.util.HashSet;
   8 import java.util.List;
   9 import java.util.Map;
  10 import java.util.Set;
  11
  12 import org.simantics.databoard.Bindings;
  13 import org.simantics.databoard.Datatypes;
  14 import org.simantics.databoard.adapter.AdaptException;
  15 import org.simantics.databoard.binding.Binding;
  16 import org.simantics.databoard.binding.error.BindingException;
  17 import org.simantics.databoard.binding.error.DatatypeConstructionException;
  18 import org.simantics.databoard.type.Datatype;
  19 import org.simantics.databoard.util.URIStringUtils;
  20 import org.simantics.db.Issue;
  21 import org.simantics.db.ReadGraph;
  22 import org.simantics.db.Resource;
  23 import org.simantics.db.Statement;
  24 import org.simantics.db.WriteGraph;
  25 import org.simantics.db.common.issue.StandardIssue;
  26 import org.simantics.db.common.primitiverequest.IsInstanceOf;
  27 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
  28 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
  29 import org.simantics.db.common.request.ObjectsWithType;
  30 import org.simantics.db.common.request.PossibleIndexRoot;
  31 import org.simantics.db.common.request.PossibleObjectWithType;
  32 import org.simantics.db.common.request.ResourceRead;
  33 import org.simantics.db.common.request.TernaryRead;
  34 import org.simantics.db.common.uri.UnescapedChildMapOfResource;
  35 import org.simantics.db.exception.DatabaseException;
  36 import org.simantics.db.layer0.function.All;
  37 import org.simantics.db.layer0.function.StandardChildDomainChildren;
  38 import org.simantics.db.layer0.request.PropertyInfo;
  39 import org.simantics.db.layer0.request.PropertyInfoRequest;
  40 import org.simantics.db.layer0.request.VariableRead;
  41 import org.simantics.db.layer0.variable.AbstractChildVariable;
  42 import org.simantics.db.layer0.variable.AbstractPropertyVariable;
  43 import org.simantics.db.layer0.variable.LazyPropertyVariable;
  44 import org.simantics.db.layer0.variable.NodeSupport;
  45 import org.simantics.db.layer0.variable.StandardGraphChildVariable;
  46 import org.simantics.db.layer0.variable.StandardGraphPropertyVariable;
  47 import org.simantics.db.layer0.variable.ValueAccessor;
  48 import org.simantics.db.layer0.variable.ValueAccessorWithBinding;
  49 import org.simantics.db.layer0.variable.Variable;
  50 import org.simantics.db.layer0.variable.VariableMap;
  51 import org.simantics.db.layer0.variable.VariableMapImpl;
  52 import org.simantics.db.layer0.variable.VariableNode;
  53 import org.simantics.db.service.CollectionSupport;
  54 import org.simantics.issues.common.IssueUtils;
  55 import org.simantics.layer0.Layer0;
  56 import org.simantics.scl.reflection.annotations.SCLValue;
  57 import org.simantics.scl.runtime.SCLContext;
  58 import org.simantics.scl.runtime.function.Function1;
  59 import org.simantics.scl.runtime.tuple.Tuple2;
  60 import org.simantics.simulation.ontology.SimulationResource;
  61 import org.simantics.simulator.variable.NodeManager;
  62 import org.simantics.structural.stubs.StructuralResource2;
  63 import org.simantics.structural2.procedural.Component;
  64 import org.simantics.structural2.procedural.ConnectionPoint;
  65 import org.simantics.structural2.procedural.Interface;
  66 import org.simantics.structural2.procedural.SubstructureElement;
  67 import org.simantics.structural2.procedural.Terminal;
  68 import org.simantics.structural2.queries.ConnectionComponents;
  69 import org.simantics.structural2.queries.ConnectionJoinComponents;
  70 import org.simantics.structural2.queries.ConnectionPointMapOfResource;
  71 import org.simantics.structural2.queries.PossibleConnectionPointInfo;
  72 import org.simantics.structural2.scl.CompileStructuralValueRequest;
  73 import org.simantics.structural2.scl.procedural.CompileProceduralComponentTypeRequest;
  74 import org.simantics.structural2.utils.StructuralUtils.StructuralComponentClass;
  75 import org.simantics.structural2.variables.Connection;
  76 import org.simantics.structural2.variables.StandardProceduralChildVariable;
  77 import org.simantics.utils.datastructures.MapList;
  78
  79 import gnu.trove.map.hash.THashMap;
  80
  81 public class Functions {
  82
  83         @SCLValue(type="ValueAccessor")
  84         public static final ValueAccessor expressionValueAccessor = new ValueAccessorWithBinding() {
  85
  86                 public Binding getBinding() {
  87                         return Bindings.STRING;
  88                 }
  89
  90                 @Override
  91                 public void setValue(WriteGraph graph, Variable context, Object value)
  92                                 throws DatabaseException {
  93                         if(value == null) {
  94                                 if(getValue(graph, context) != null)
  95                                         clearExpression(graph, context);
  96                                 return;
  97                         }
  98
  99                         // Get all necessary data
 100                         String expression = (String)value;
 101                         Variable parent = context.getParent(graph);
 102                         if(!(parent instanceof AbstractPropertyVariable)) return;
 103                         AbstractPropertyVariable property = (AbstractPropertyVariable)parent;
 104                         Resource propertyResource = property.getRepresents(graph);
 105                         if(propertyResource == null) return;
 106                         Resource container = property.getContainerResource(graph);
 107                         if(container == null) return;
 108                         Resource predicate = property.getPossiblePredicateResource(graph);
 109                         if(predicate == null) return;
 110                         Statement stat = graph.getPossibleStatement(container, predicate);
 111                         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 112
 113                         // Write
 114                         boolean createNew = false;
 115                         if(stat.isAsserted(container))
 116                                 createNew = true;
 117                         else if(!graph.isInstanceOf(propertyResource, STR.SCLValue)) {
 118                                 graph.deny(propertyResource);
 119                                 createNew = true;
 120                         }
 121             Layer0 L0 = Layer0.getInstance(graph);
 122                         if(createNew) {
 123                                 propertyResource = graph.newResource();
 124                                 graph.claim(container, predicate, propertyResource);
 125                                 graph.claim(propertyResource, L0.InstanceOf, STR.SCLValue);
 126                         }
 127                         graph.claimLiteral(propertyResource, L0.SCLValue_expression, expression, Bindings.STRING);
 128                 }
 129
 130                 private void clearExpression(WriteGraph graph, Variable context) throws DatabaseException {
 131                         Variable parent = context.getParent(graph);
 132                         if(!(parent instanceof AbstractPropertyVariable)) return;
 133                         AbstractPropertyVariable property = (AbstractPropertyVariable)parent;
 134                         Resource container = property.getContainerResource(graph);
 135                         if(container == null) return;
 136                         Resource predicate = property.getPossiblePredicateResource(graph);
 137                         if(predicate == null) return;
 138                         graph.deny(container, predicate);
 139                 }
 140
 141                 @Override
 142                 public Object getValue(ReadGraph graph, Variable context)
 143                                 throws DatabaseException {
 144                         Variable parent = context.getParent(graph);
 145                         if(!(parent instanceof AbstractPropertyVariable))
 146                                 return null;
 147                         AbstractPropertyVariable property = (AbstractPropertyVariable)parent;
 148                         Resource propertyResource = property.getPossibleRepresents(graph);
 149                         if(propertyResource == null) return null;
 150                         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 151                         if(!graph.isInstanceOf(propertyResource, STR.SCLValue))
 152                                 return null;
 153             Layer0 L0 = Layer0.getInstance(graph);
 154                         return graph.getPossibleRelatedValue(propertyResource, L0.SCLValue_expression);
 155                 }
 156
 157         };
 158
 159         @SCLValue(type="ValueAccessor")
 160         public static final ValueAccessor connectionValueAccessor = new ValueAccessor() {
 161
 162                 @Override
 163                 public void setValue(WriteGraph graph, Variable context, Object value) throws DatabaseException {
 164                         throw new UnsupportedOperationException();
 165                 }
 166
 167                 public void setValue(WriteGraph graph, Variable context, Object value, Binding binding) throws DatabaseException {
 168                         throw new UnsupportedOperationException();
 169                 }
 170
 171                 public Object getValue(ReadGraph graph, Variable context, Binding binding) throws DatabaseException {
 172             try {
 173                 Object value = getValue(graph, context);
 174                 Binding srcBinding = Bindings.OBJECT.getContentBinding(value);
 175                                 return Bindings.adapt(value, srcBinding, binding);
 176                         } catch (AdaptException e) {
 177                                 throw new DatabaseException(e);
 178                         } catch (BindingException e) {
 179                                 throw new DatabaseException(e);
 180                         }
 181                 }
 182
 183                 @Override
 184                 public Object getValue(ReadGraph graph, Variable context) throws DatabaseException {
 185                         StandardGraphPropertyVariable variable = (StandardGraphPropertyVariable)context;
 186                         return new ConnectionImpl(context.getParent(graph), variable.property.predicate);
 187                 }
 188
 189                 @Override
 190                 public Datatype getDatatype(ReadGraph graph, Variable context) throws DatabaseException {
 191                         try {
 192                                 return Datatypes.getDatatype(Connection.class);
 193                         } catch (DatatypeConstructionException e) {
 194                                 throw new DatabaseException(e);
 195                         }
 196                 }
 197
 198         };
 199
 200
 201         @SCLValue(type = "VariableMap")
 202         public static VariableMap structuralChildDomainProperties = new VariableMapImpl() {
 203
 204                 public Variable getPossibleConnectionPointFromContext(ReadGraph graph, Variable variable, Resource context, String name) throws DatabaseException {
 205
 206                         Map<String, PropertyInfo> connectionPoints = graph.syncRequest(new ConnectionPointMapOfResource(graph, context), TransientCacheAsyncListener.<Map<String,PropertyInfo>>instance());
 207                         PropertyInfo cp = connectionPoints.get(name);
 208                         if(cp == null) return null;
 209                         else return new StandardGraphPropertyVariable(graph, variable, cp.predicate);
 210
 211                 }
 212
 213                 public Map<String, Variable> collectConnectionPointsFromContext(ReadGraph graph, StructuralResource2 STR, Variable variable, Resource context, Map<String, Variable> map, boolean needSynchronized) throws DatabaseException {
 214
 215                         if(graph.isImmutable(context)) {
 216
 217                                 Map<String, PropertyInfo> cps = graph.syncRequest(new ConnectionPointMapOfResource(graph, context), TransientCacheAsyncListener.<Map<String,PropertyInfo>>instance());
 218                                 if(cps.size() == 0) return map;
 219
 220                                 if(map == null) map = new THashMap<String,Variable>(cps.size());
 221
 222                                 for(Map.Entry<String, PropertyInfo> entry : cps.entrySet()) {
 223                                         String name = entry.getKey();
 224                                         PropertyInfo cp = entry.getValue();
 225                                         if(needSynchronized && !graph.isInstanceOf(cp.predicate, STR.SynchronizedConnectionRelation)) continue;
 226                                         map.put(name, new StandardGraphPropertyVariable(graph, variable, cp.predicate));
 227                                 }
 228
 229                                 return map;
 230
 231                         } else {
 232
 233                                 Collection<Resource> predicates = graph.getPredicates(context);
 234
 235                                 for(Resource predicate : predicates) {
 236
 237                                         PropertyInfo info = graph.isImmutable(predicate) ?
 238                                                         graph.syncRequest(new PossibleConnectionPointInfo(predicate), TransientCacheAsyncListener.<PropertyInfo>instance()) :
 239                                                                 graph.syncRequest(new PossibleConnectionPointInfo(predicate));
 240
 241                                         if(info != null) {
 242                                                 if(map == null) map = new THashMap<String,Variable>(4);
 243                                                 if(needSynchronized && !graph.isInstanceOf(predicate, STR.SynchronizedConnectionRelation)) continue;
 244                                                 map.put(info.name, new StandardGraphPropertyVariable(graph, variable, predicate));
 245                                         }
 246
 247                                 }
 248
 249                                 return map;
 250
 251                         }
 252
 253                 }
 254
 255                 @Override
 256                 public Variable getVariable(ReadGraph graph, Variable context, String name) throws DatabaseException {
 257                 final StandardGraphChildVariable variable = (StandardGraphChildVariable)context;
 258                 Variable cp = getPossibleConnectionPointFromContext(graph, variable, variable.resource, name);
 259                 if(cp != null) return cp;
 260             return All.getStandardChildDomainPropertyVariable(graph, context, name);
 261                 }
 262
 263                 @Override
 264                 public Map<String, Variable> getVariables(ReadGraph graph, Variable context, Map<String, Variable> map) throws DatabaseException {
 265                 StandardGraphChildVariable variable = (StandardGraphChildVariable)context;
 266                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
 267                 map = collectConnectionPointsFromContext(graph, STR, variable, variable.resource, map, false);
 268             return All.getStandardChildDomainPropertyVariables(graph, context, map);
 269                 }
 270
 271                 public Map<String,Variable> getVariables(ReadGraph graph, Variable context, String classification, Map<String,Variable> map) throws DatabaseException {
 272                         if (StructuralResource2.URIs.SynchronizedRelation.equals(classification)) {
 273                                 return All.getStandardChildDomainPropertyVariables(graph, context, classification, map);
 274                         } else if (StructuralResource2.URIs.SynchronizedConnectionRelation.equals(classification)) {
 275                         StandardGraphChildVariable variable = (StandardGraphChildVariable)context;
 276                         return collectConnectionPointsFromContext(graph, StructuralResource2.getInstance(graph), variable, variable.resource, map, true);
 277                         } else if(StructuralResource2.URIs.ConnectionRelation.equals(classification)) {
 278                         StandardGraphChildVariable variable = (StandardGraphChildVariable)context;
 279                         return collectConnectionPointsFromContext(graph, StructuralResource2.getInstance(graph), variable, variable.resource, map, false);
 280                         }
 281                         return super.getVariables(graph, context, classification, map);
 282                 }
 283
 284         };
 285
 286         static class StructuralRunContext extends ResourceRead<Resource> {
 287
 288                 public StructuralRunContext(Resource resource) {
 289                         super(resource);
 290                 }
 291
 292                 @Override
 293                 public Resource perform(ReadGraph graph) throws DatabaseException {
 294
 295                         Layer0 L0 = Layer0.getInstance(graph);
 296                         SimulationResource SIMU = SimulationResource.getInstance(graph);
 297                         Resource model = graph.sync(new PossibleIndexRoot(resource));
 298                         if(graph.isInstanceOf(model, L0.RVIContext)) {
 299                                 return model;
 300                         }
 301                         Resource configuration = graph.getPossibleObject(model, SIMU.HasConfiguration);
 302                         if(configuration != null) {
 303                                 if(graph.isInstanceOf(configuration, L0.RVIContext)) {
 304                                         return configuration;
 305                                 }
 306                         }
 307
 308                         return null;
 309
 310                 }
 311
 312         }
 313
 314         private static class SubstructureRequest extends VariableRead<List<SubstructureElement>> {
 315             public SubstructureRequest(Variable context) {
 316             super(context);
 317         }
 318
 319         @Override
 320         public List<SubstructureElement> perform(ReadGraph graph) {
 321             try {
 322                 Resource type = variable.getPossibleType(graph);
 323                 if(type == null)
 324                     return null;
 325                 return CompileProceduralComponentTypeRequest.compileAndEvaluate(graph, type, variable);
 326             } catch (Throwable t) {
 327                 t.printStackTrace();
 328                 return null;
 329             }
 330         }
 331         }
 332
 333     public static List<SubstructureElement> getProceduralDesc(ReadGraph graph, final Variable context) throws DatabaseException {
 334         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 335         final Resource type = context.getPossibleType(graph);
 336         if(type != null) {
 337             if(graph.isInstanceOf(type, STR.ProceduralComponentType)) {
 338                 return graph.syncRequest(new SubstructureRequest(context));
 339             }
 340         }
 341         return null;
 342     }
 343
 344          public static Map<String,Variable> getProcedural(ReadGraph graph, Variable context, List<SubstructureElement> elements, Map<String,Variable> map) throws DatabaseException {
 345
 346          if(map == null) map = new THashMap<String,Variable>();
 347
 348          MapList<String,org.simantics.structural2.procedural.Connection> conns = new MapList<String,org.simantics.structural2.procedural.Connection>();
 349          for(SubstructureElement sub : elements) {
 350              if(sub instanceof org.simantics.structural2.procedural.Connection) {
 351                  org.simantics.structural2.procedural.Connection conn = (org.simantics.structural2.procedural.Connection)sub;
 352                  for(ConnectionPoint cp : conn.connectionPoints) {
 353                      if(cp instanceof Terminal) {
 354                          Terminal t = (Terminal)cp;
 355                          conns.add(t.component, conn);
 356                      }
 357                  }
 358              }
 359          }
 360
 361          Map<String,Component> proceduralChildren = new THashMap<String, Component>();
 362          for(SubstructureElement sub : elements) {
 363              if(sub instanceof Component) {
 364                  Component comp = (Component)sub;
 365                  proceduralChildren.put(comp.name, comp);
 366              }
 367          }
 368
 369          Collection<Object> nodeChildren = All.getPossibleNodeChildren(graph, (AbstractChildVariable)context);
 370          Set<String> used = new HashSet<String>(nodeChildren.size());
 371          for(Object nodeChild : nodeChildren) {
 372              @SuppressWarnings("rawtypes")
 373              NodeSupport support = ((AbstractChildVariable)context).node.support;
 374              @SuppressWarnings("rawtypes")
 375              NodeManager manager = support.manager;
 376              @SuppressWarnings("unchecked")
 377              String name = manager.getName(nodeChild);
 378              used.add(name);
 379              Component proceduralChild = proceduralChildren.get(name);
 380              if(proceduralChild != null) {
 381                  map.put(proceduralChild.name, new StandardProceduralChildVariable(graph, context, new VariableNode(support, nodeChild), proceduralChild.name, proceduralChild.type, proceduralChild.properties, conns.getValues(proceduralChild.name)));
 382              }
 383          }
 384
 385          for(Map.Entry<String, Component> entry : proceduralChildren.entrySet()) {
 386              String name = entry.getKey();
 387              if(used.contains(name)) continue;
 388              Component proceduralChild = entry.getValue();
 389              map.put(proceduralChild.name, new StandardProceduralChildVariable(graph, context, null, proceduralChild.name, proceduralChild.type, proceduralChild.properties, conns.getValues(proceduralChild.name)));
 390          }
 391
 392          return map;
 393
 394      }
 395
 396          private static class ProceduralSubstructureRequest extends VariableRead<Map<String,Variable>> {
 397
 398              public ProceduralSubstructureRequest(Variable variable) {
 399                  super(variable);
 400              }
 401
 402              @Override
 403              public Map<String, Variable> perform(ReadGraph graph)
 404                      throws DatabaseException {
 405                  List<SubstructureElement> elements = getProceduralDesc(graph, variable);
 406                  if(elements != null)
 407                      return getProcedural(graph, variable, elements, null);
 408                  else
 409                      return null;
 410              }
 411          }
 412
 413         public static class StructuralTypeOverrideMap extends ResourceRead<Map<Resource,Resource>> {
 414
 415                 protected StructuralTypeOverrideMap(Resource composite) {
 416                         super(composite);
 417                 }
 418
 419                 @Override
 420                 public Map<Resource, Resource> perform(ReadGraph graph) throws DatabaseException {
 421
 422                         Layer0 L0 = Layer0.getInstance(graph);
 423
 424                         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 425
 426                         CollectionSupport cs = graph.getService(CollectionSupport.class);
 427
 428                         Map<Resource,Resource> result = null;
 429
 430                         for(Resource override : graph.getObjects(resource, STR.HasTypeOverride)) {
 431                                 Resource original = graph.getSingleObject(override, STR.TypeOverride_HasOriginalType);
 432                                 Resource replacement = graph.getSingleObject(override, STR.TypeOverride_HasReplacementType);
 433                                 if(result == null) result = cs.createMap(Resource.class);
 434                                 result.put(original, replacement);
 435                         }
 436
 437                         if(result == null) return Collections.emptyMap();
 438
 439                         return result;
 440
 441                 }
 442
 443         }
 444
 445         public static class StructuralOverrideData {
 446                 @Override
 447                 public int hashCode() {
 448                         final int prime = 31;
 449                         int result = 1;
 450                         result = prime * result + ((actualRepresents == null) ? 0 : actualRepresents.hashCode());
 451                         result = prime * result + ((actualType == null) ? 0 : actualType.hashCode());
 452                         result = prime * result + ((overrideType == null) ? 0 : overrideType.hashCode());
 453                         return result;
 454                 }
 455                 @Override
 456                 public boolean equals(Object obj) {
 457                         if (this == obj)
 458                                 return true;
 459                         if (obj == null)
 460                                 return false;
 461                         if (getClass() != obj.getClass())
 462                                 return false;
 463                         StructuralOverrideData other = (StructuralOverrideData) obj;
 464                         if (actualRepresents == null) {
 465                                 if (other.actualRepresents != null)
 466                                         return false;
 467                         } else if (!actualRepresents.equals(other.actualRepresents))
 468                                 return false;
 469                         if (actualType == null) {
 470                                 if (other.actualType != null)
 471                                         return false;
 472                         } else if (!actualType.equals(other.actualType))
 473                                 return false;
 474                         if (overrideType == null) {
 475                                 if (other.overrideType != null)
 476                                         return false;
 477                         } else if (!overrideType.equals(other.overrideType))
 478                                 return false;
 479                         return true;
 480                 }
 481                 Resource actualRepresents;
 482                 Resource actualType;
 483                 Resource overrideType;
 484                 public StructuralOverrideData(Resource actualRepresents, Resource actualType, Resource overrideType) {
 485                         this.actualRepresents = actualRepresents;
 486                         this.actualType = actualType;
 487                         this.overrideType = overrideType;
 488                 }
 489
 490                 public static StructuralOverrideData compute(ReadGraph graph, Variable context) throws DatabaseException {
 491                         return graph.syncRequest(new StructuralOverrideDataRequest(context));
 492                 }
 493
 494                 public Resource type() {
 495                         if(overrideType != null)
 496                                 return overrideType;
 497                         return actualType;
 498                 }
 499
 500                 public Resource represents() {
 501                         return actualRepresents;
 502                 }
 503
 504         }
 505
 506     private static class StructuralOverrideDataWalkRequest
 507             extends TernaryRead<Variable, Resource, Resource, StructuralOverrideData> {
 508
 509         public StructuralOverrideDataWalkRequest(Variable component, Resource actualRepresents, Resource actualType) {
 510             super(component, actualRepresents, actualType);
 511         }
 512
 513         @Override
 514         public StructuralOverrideData perform(ReadGraph graph) throws DatabaseException {
 515             Variable component = parameter;
 516             Resource actualRepresents = parameter2;
 517             Resource actualType = parameter3;
 518 //            System.err.println(component.getURI(graph));
 519             Resource represents = component.getPossibleRepresents(graph);
 520             if (represents != null) {
 521                 Layer0 L0 = Layer0.getInstance(graph);
 522                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
 523                 Resource container = graph
 524                         .syncRequest(new PossibleObjectWithType(represents, L0.PartOf, STR.Composite));
 525                 if (container != null) {
 526                     Map<Resource, Resource> overrides = graph.syncRequest(new StructuralTypeOverrideMap(container), TransientCacheListener.instance());
 527                     Resource override = overrides.get(actualType);
 528                     if (override != null) {
 529                         return new StructuralOverrideData(actualRepresents, actualType, override);
 530                     }
 531                 }
 532             }
 533             Variable parent = component.getParent(graph);
 534             if (parent == null)
 535                 return new StructuralOverrideData(actualRepresents, actualType, null);
 536             else
 537                 return graph.syncRequest(new StructuralOverrideDataWalkRequest(parent, represents, actualType), TransientCacheListener.instance());
 538         }
 539
 540     }
 541
 542         public static class StructuralOverrideDataRequest extends VariableRead<StructuralOverrideData> {
 543
 544                 public StructuralOverrideDataRequest(Variable component) {
 545                         super(component);
 546                 }
 547
 548                 @Override
 549                 public StructuralOverrideData perform(ReadGraph graph) throws DatabaseException {
 550
 551                 Resource represents = variable.getPossibleRepresents(graph);
 552                 if(represents == null) {
 553                         String uri = variable.getPossiblePropertyValue(graph, "typeURI");
 554                         if(uri != null) {
 555                                 Resource actualType = graph.syncRequest(new org.simantics.db.common.primitiverequest.Resource(uri), TransientCacheAsyncListener.<Resource>instance());
 556                                 if (graph.syncRequest(new IsInstanceOf(actualType, StructuralResource2.getInstance(graph).ReplaceableDefinedComponentType), TransientCacheListener.instance()) ) {
 557                                     return graph.syncRequest(new StructuralOverrideDataWalkRequest(variable, null, actualType), TransientCacheListener.instance());
 558                                 } else {
 559                                     // can not have replaceable type
 560                                     return null;
 561                                 }
 562                         }
 563                         throw new DatabaseException("No type for " + variable.getURI(graph));
 564                 } else {
 565                         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 566                     Resource possibleType = graph.getPossibleType(represents, STR.Component);
 567                     if (possibleType == null) {
 568                         possibleType = graph.getPossibleType(represents, Layer0.getInstance(graph).Entity);
 569                         if (possibleType == null)
 570                                 return null;
 571                     }
 572                     if (graph.syncRequest(new IsInstanceOf(possibleType, STR.ReplaceableDefinedComponentType), TransientCacheListener.instance()) ) {
 573                         return graph.syncRequest(new StructuralOverrideDataWalkRequest(variable, represents, possibleType), TransientCacheListener.instance());
 574                     } else {
 575                         return null;
 576                     }
 577                 }
 578
 579                 }
 580
 581         }
 582
 583
 584     private static class StructureTypeAndChildMapRequest extends ResourceRead<Tuple2> {
 585
 586         protected StructureTypeAndChildMapRequest(Resource resource) {
 587             super(resource);
 588         }
 589
 590         @Override
 591         public Tuple2 perform(ReadGraph graph) throws DatabaseException {
 592             StructuralComponentClass clazz = StructuralComponentClass.get(graph, resource);
 593             if (StructuralComponentClass.DEFINED.equals(clazz)) {
 594                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
 595                 Resource def = graph.getSingleObject(resource, STR.IsDefinedBy);
 596                 Map<String, Resource> children = graph.syncRequest(new UnescapedChildMapOfResource(def), TransientCacheListener.instance());
 597                 return new Tuple2(clazz, children);
 598             }
 599             return new Tuple2(clazz, null);
 600         }
 601
 602     }
 603
 604         @SCLValue(type = "VariableMap")
 605         public static VariableMap structuralChildDomainChildren = new VariableMapImpl() {
 606
 607                 @Override
 608                 public Variable getVariable(ReadGraph graph, Variable context, String name) throws DatabaseException {
 609                         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 610                         Resource type = context.getPossibleType(graph, STR.Component);
 611                         if(type == null) return null;
 612
 613                         Tuple2 result = graph.syncRequest(new StructureTypeAndChildMapRequest(type), TransientCacheListener.instance());
 614                         StructuralComponentClass clazz = (StructuralComponentClass) result.c0;
 615
 616                         if(StructuralComponentClass.PROCEDURAL.equals(clazz)) {
 617                     Map<String,Variable> map = graph.syncRequest(new ProceduralSubstructureRequest(context),
 618                         TransientCacheListener.<Map<String,Variable>>instance());
 619                     if(map != null) return map.get(name);
 620                     return null;
 621                         } else if (StructuralComponentClass.DEFINED.equals(clazz)) {
 622                             Map<String, Resource> children = (Map<String, Resource>) result.c1;
 623                 Resource child = children.get(name);
 624                 if(child == null) return null;
 625                 return StandardChildDomainChildren.getStandardChildDomainChildVariable(graph, context, child, name);
 626                         } else {
 627                                 Resource represents = context.getPossibleRepresents(graph);
 628                                 if(represents == null) return null;
 629                 Map<String, Resource> children = graph.syncRequest(new UnescapedChildMapOfResource(represents), TransientCacheListener.instance());
 630                 Resource child = children.get(name);
 631                 return StandardChildDomainChildren.getStandardChildDomainChildVariable(graph, context, child, name);
 632                         }
 633
 634                 }
 635
 636                 @Override
 637                 public Map<String, Variable> getVariables(ReadGraph graph, Variable context, Map<String, Variable> map) throws DatabaseException {
 638                         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 639                         Resource type = context.getPossibleType(graph, STR.Component);
 640                         if(type == null) return null;
 641
 642                         StructuralComponentClass clazz = StructuralComponentClass.get(graph, type);
 643                         if(StructuralComponentClass.PROCEDURAL.equals(clazz)) {
 644                 Map<String,Variable> mapPrime = graph.syncRequest(new ProceduralSubstructureRequest(context),
 645                                 TransientCacheListener.<Map<String,Variable>>instance());
 646                 if(mapPrime != null) {
 647                         if(map != null) {
 648                                 map.putAll(mapPrime);
 649                                 return map;
 650                         }
 651                         else
 652                                 return mapPrime;
 653                 }
 654                 return map;
 655                         } else if (StructuralComponentClass.DEFINED.equals(clazz)) {
 656                                 Resource def = graph.getSingleObject(type, STR.IsDefinedBy);
 657                 Map<String, Resource> children = graph.syncRequest(new UnescapedChildMapOfResource(def), TransientCacheListener.instance());
 658                 return StandardChildDomainChildren.getStandardChildDomainChildVariables(graph, context, children, map);
 659                         } else {
 660                                 Resource represents = context.getPossibleRepresents(graph);
 661                                 if(represents == null) return null;
 662                 Map<String, Resource> children = graph.syncRequest(new UnescapedChildMapOfResource(represents));
 663                 return StandardChildDomainChildren.getStandardChildDomainChildVariables(graph, context, children, map);
 664                         }
 665
 666                 }
 667
 668         };
 669
 670         @SCLValue(type = "VariableMap")
 671         public static VariableMap structuralRunDomainChildren = new VariableMapImpl() {
 672
 673                 @Override
 674                 public Variable getVariable(ReadGraph graph, Variable context, String name) throws DatabaseException {
 675                         Resource ctx = graph.syncRequest(new StructuralRunContext(context.getRepresents(graph)));
 676                         if(ctx == null) return null;
 677                     Map<String, Resource> children = graph.syncRequest(new UnescapedChildMapOfResource(ctx));
 678                         Resource child = children.get(name);
 679             return StandardChildDomainChildren.getStandardChildDomainChildVariable(graph, context, child, name);
 680                 }
 681
 682                 @Override
 683                 public Map<String, Variable> getVariables(ReadGraph graph, Variable context, Map<String, Variable> map) throws DatabaseException {
 684                         Resource ctx = graph.syncRequest(new StructuralRunContext(context.getRepresents(graph)));
 685                         if(ctx == null) return map;
 686                     Map<String, Resource> children = graph.syncRequest(new UnescapedChildMapOfResource(ctx));
 687                     return StandardChildDomainChildren.getStandardChildDomainChildVariables(graph, context, children, map);
 688                 }
 689
 690         };
 691
 692         @SCLValue(type = "ReadGraph -> [Resource] -> [Resource]")
 693     public static List<Resource> connectionExtension(ReadGraph graph, List<Resource> rs) throws DatabaseException {
 694
 695         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 696         HashSet<Resource> extension = new HashSet<Resource>(8);
 697         for(Resource r : rs) {
 698                 if(graph.isInstanceOf(r, STR.Connection)) {
 699                         extension.addAll(graph.syncRequest(new ConnectionComponents(r), TransientCacheListener.<Collection<Resource>>instance()));
 700                 }
 701                 if(graph.isInstanceOf(r, STR.ConnectionJoin)) {
 702                         extension.addAll(graph.syncRequest(new ConnectionJoinComponents(r), TransientCacheListener.<Collection<Resource>>instance()));
 703                 }
 704         }
 705
 706         HashSet<Resource> components = new HashSet<Resource>(8);
 707         for(Resource r : extension) {
 708                 components.addAll(graph.sync(new ObjectsWithType(r, STR.Connects, STR.Component)));
 709         }
 710
 711         if(!extension.isEmpty()) {
 712                 ArrayList<Resource> result = new ArrayList<Resource>(rs.size() + extension.size());
 713                 result.addAll(rs);
 714                 result.addAll(extension);
 715                 result.addAll(components);
 716                 rs = result;
 717         }
 718
 719         return rs;
 720
 721     }
 722
 723         @SCLValue(type = "ReadGraph -> Resource -> [Issue]")
 724     public static List<Issue> connectionValidator(ReadGraph graph, Resource component) throws DatabaseException {
 725
 726                 if(!graph.hasStatement(component)) return Collections.emptyList();
 727
 728                 ArrayList<Issue> result = new ArrayList<Issue>();
 729
 730                 Layer0 L0 = Layer0.getInstance(graph);
 731                 StructuralResource2 sr = StructuralResource2.getInstance(graph);
 732
 733                 Resource type = graph.getSingleType(component, sr.Component);
 734
 735                 Set<Resource> requiredConnections = new HashSet<Resource>();
 736                 for(Resource connectionRelation : graph.sync(new ObjectsWithType(type, L0.ConsistsOf, sr.ConnectionRelation))) {
 737                         Boolean required = graph.getPossibleRelatedValue(connectionRelation, sr.ConnectionRelation_connectionRequired, Bindings.BOOLEAN);
 738                         if(required != null && required)
 739                                 requiredConnections.add(connectionRelation);
 740                 }
 741
 742                 Set<Resource> connections = new HashSet<Resource>();
 743
 744                 for(Statement stm : graph.getStatements(component, sr.IsConnectedTo)) {
 745                         connections.add(stm.getPredicate());
 746                         connections.addAll(graph.getSuperrelations(stm.getPredicate()));
 747                 }
 748
 749                 for(Resource req : requiredConnections) {
 750                         if(!connections.contains(req)) {
 751                                 result.add(new StandardIssue(sr.ConnectionValidationConstraint_ErrorIssue, component, req));
 752                         }
 753                 }
 754
 755                 return result;
 756
 757     }
 758
 759     @SCLValue(type = "ReadGraph -> Resource -> Variable -> String")
 760     public static String connectionIssueDescription(ReadGraph graph, Resource converter, Variable property) throws DatabaseException {
 761         List<Resource> contexts = IssueUtils.getContextsForProperty(graph, property);
 762         String attributeName = graph.getRelatedValue(contexts.get(1), Layer0.getInstance(graph).HasName);
 763         return "'" + attributeName + "' should be connected.";
 764     }
 765
 766     public static class InterfacePathMap extends VariableRead<GraphMap<Map<String,InterfaceResolution>>> {
 767
 768                 public InterfacePathMap(Variable context) {
 769                         super(context);
 770                 }
 771
 772                 @Override
 773                 public GraphMap<Map<String,InterfaceResolution>> perform(ReadGraph graph) throws DatabaseException {
 774
 775                         return new GraphMap<Map<String,InterfaceResolution>>() {
 776
 777                                 @Override
 778                                 Map<String, InterfaceResolution> get(ReadGraph graph, String key) throws DatabaseException {
 779
 780                                         Variable child = variable.getChild(graph, key);
 781
 782                                         Map<String,InterfaceResolution> childMap = new THashMap<String,InterfaceResolution>();
 783                                         Collection<InterfaceResolution> paths = computeInterfacePaths(graph, child);//child.getPossiblePropertyValue(graph, "proceduralConnectionPointPath");
 784                                         if(paths != null) {
 785                                                 for(InterfaceResolution r : paths) {
 786                                                         childMap.put(r.interfaceName, r);
 787                                                 }
 788                                         }
 789                                         return childMap;
 790
 791                                 }
 792
 793                         };
 794
 795                 }
 796
 797     }
 798
 799     public static String resolveInterfacePath(ReadGraph graph, Variable context, String component, Resource relation) throws DatabaseException {
 800
 801         GraphMap<Map<String,InterfaceResolution>> map = graph.syncRequest(new InterfacePathMap(context), TransientCacheListener.<GraphMap<Map<String,InterfaceResolution>>>instance());
 802         Map<String,InterfaceResolution> childMap = map.get(graph, component);
 803         if(childMap == null) return "";
 804
 805         PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(relation), TransientCacheListener.<PropertyInfo>instance());
 806
 807         InterfaceResolution match = childMap.get(info.name);
 808         if(match != null) {
 809                 String comp = URIStringUtils.escape(component);
 810                 Variable newContext = context.getChild(graph, component);
 811                 return "/" + comp + resolveInterfacePath(graph, newContext, match.componentName, match.connectionPoint);
 812         } else {
 813                 return "/" + URIStringUtils.escape(component) + "#" + URIStringUtils.escape(info.name);
 814         }
 815
 816     }
 817
 818     public static class InterfaceResolution {
 819
 820         public Resource interfaceConnectionPoint;
 821         public String interfaceName;
 822         public String componentName;
 823         public Resource connectionPoint;
 824
 825         public InterfaceResolution(Resource interfaceConnectionPoint, String interfaceName, String componentName, Resource connectionPoint) {
 826                 this.interfaceConnectionPoint = interfaceConnectionPoint;
 827                 this.interfaceName = interfaceName;
 828                 this.componentName = componentName;
 829                 this.connectionPoint = connectionPoint;
 830         }
 831
 832     }
 833
 834     public static Collection<InterfaceResolution> computeInterfacePaths(ReadGraph graph, Variable variable) throws DatabaseException {
 835
 836                 StructuralResource2 STR = StructuralResource2.getInstance(graph);
 837                 Resource type = variable.getPossibleType(graph);
 838                 if(type != null) {
 839                         if(graph.isInstanceOf(type, STR.ProceduralComponentType)) {
 840                                 ArrayList<InterfaceResolution> result = new ArrayList<InterfaceResolution>();
 841                                 List<SubstructureElement> elements = getProceduralDesc(graph, variable);
 842                                 if(elements != null) {
 843                                         for(SubstructureElement e : elements) {
 844                                                 if(e instanceof org.simantics.structural2.procedural.Connection) {
 845                                                         org.simantics.structural2.procedural.Connection conn = (org.simantics.structural2.procedural.Connection)e;
 846                                                         Interface inf = null;
 847                                                         for(ConnectionPoint cp : conn.connectionPoints) {
 848                                                                 if(cp instanceof Interface) {
 849                                                                         if(inf != null) throw new DatabaseException("Multiple interfaces referenced in procedural connection.");
 850                                                                         inf = (Interface)cp;
 851                                                                 }
 852                                                         }
 853                                                         if(inf != null && conn.connectionPoints.size() > 1) {
 854                                                                 Layer0 L0 = Layer0.getInstance(graph);
 855                                                                 String cpName = URIStringUtils.escape( graph.<String>getRelatedValue(inf.relation, L0.HasName, Bindings.STRING) );
 856                                                                 for(ConnectionPoint cp : conn.connectionPoints) {
 857                                                                         if(cp == inf) continue;
 858                                                                         Terminal t = (Terminal)cp;
 859                                                                         result.add(new InterfaceResolution(inf.relation, cpName, t.component, t.relation));
 860                                                                 }
 861                                                         }
 862                                                 }
 863                                         }
 864                                 }
 865
 866                                 return result;
 867
 868                         }
 869
 870                         final Collection<InterfaceResolution> interfaces = graph.syncRequest(new DefinedUCInterfaceMap(type), TransientCacheListener.instance());
 871                         if(interfaces != null) return interfaces;
 872
 873                 }
 874
 875                 return BUILTIN_STRUCTURAL_CPS;
 876
 877     }
 878
 879     static class InterfacePathRequest extends VariableRead<Collection<InterfaceResolution>> {
 880
 881                 public InterfacePathRequest(Variable variable) {
 882                         super(variable);
 883                 }
 884
 885                 @Override
 886                 public Collection<InterfaceResolution> perform(ReadGraph graph) throws DatabaseException {
 887                         return computeInterfacePaths(graph, variable);
 888                 }
 889
 890     }
 891
 892     public static final Collection<InterfaceResolution> BUILTIN_STRUCTURAL_CPS = new ArrayList<InterfaceResolution>();
 893
 894         @SCLValue(type = "ReadGraph -> Resource -> Variable -> a")
 895     public static Object computeExpression(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
 896         return CompileStructuralValueRequest.compileAndEvaluate(graph, context);
 897     }
 898
 899     public static Object computeExpressionInContext(ReadGraph graph, Variable context, final String expression) throws DatabaseException {
 900         SCLContext sclContext = SCLContext.getCurrent();
 901         Object oldGraph = sclContext.get("graph");
 902         try {
 903             Function1<Object,Object> exp = graph.syncRequest(new CompileStructuralValueRequest(graph, context) {
 904                 protected String getExpressionText(ReadGraph graph) throws DatabaseException {
 905                     return expression;
 906                 }
 907             },
 908             TransientCacheListener.instance());
 909             sclContext.put("graph", graph);
 910             return exp.apply(context);
 911         } catch (DatabaseException e) {
 912             throw (DatabaseException)e;
 913         } catch (Throwable t) {
 914             throw new DatabaseException(t);
 915         } finally {
 916             sclContext.put("graph", oldGraph);
 917         }
 918     }
 919
 920         static abstract class InterfacePathProperty extends LazyPropertyVariable {
 921
 922                 public InterfacePathProperty(Variable parent) {
 923                         super(parent, "proceduralConnectionPointPath", Bindings.STRING_ARRAY);
 924                 }
 925
 926                 @Override
 927                 public <T> T getValue(ReadGraph graph, Binding binding) throws DatabaseException {
 928                         return getValue(graph);
 929                 }
 930
 931         }
 932
 933         static abstract class GraphMap<Value> {
 934
 935                 abstract Value get(ReadGraph graph, String key) throws DatabaseException;
 936
 937         }
 938
 939 }