bundles/org.simantics.document.server/src/org/simantics/document/server/Functions.java

   1 package org.simantics.document.server;
   2
   3 import java.io.PrintWriter;
   4 import java.io.StringWriter;
   5 import java.util.ArrayList;
   6 import java.util.Collection;
   7 import java.util.Collections;
   8 import java.util.HashMap;
   9 import java.util.List;
  10 import java.util.Map;
  11 import java.util.TreeMap;
  12
  13 import org.simantics.Simantics;
  14 import org.simantics.databoard.Bindings;
  15 import org.simantics.databoard.Datatypes;
  16 import org.simantics.databoard.binding.Binding;
  17 import org.simantics.databoard.type.Datatype;
  18 import org.simantics.db.AsyncReadGraph;
  19 import org.simantics.db.DirectStatements;
  20 import org.simantics.db.ReadGraph;
  21 import org.simantics.db.RequestProcessor;
  22 import org.simantics.db.Resource;
  23 import org.simantics.db.Session;
  24 import org.simantics.db.Statement;
  25 import org.simantics.db.WriteGraph;
  26 import org.simantics.db.common.primitiverequest.Adapter;
  27 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
  28 import org.simantics.db.common.request.UnaryRead;
  29 import org.simantics.db.common.request.UniqueRead;
  30 import org.simantics.db.common.request.WriteResultRequest;
  31 import org.simantics.db.common.utils.Logger;
  32 import org.simantics.db.common.utils.NameUtils;
  33 import org.simantics.db.exception.DatabaseException;
  34 import org.simantics.db.layer0.function.All;
  35 import org.simantics.db.layer0.request.ProjectModels;
  36 import org.simantics.db.layer0.request.PropertyInfo;
  37 import org.simantics.db.layer0.request.PropertyInfoRequest;
  38 import org.simantics.db.layer0.request.VariableProperty;
  39 import org.simantics.db.layer0.request.VariableRead;
  40 import org.simantics.db.layer0.request.VariableValueWithBinding;
  41 import org.simantics.db.layer0.scl.SCLDatabaseException;
  42 import org.simantics.db.layer0.variable.ConstantPropertyVariable;
  43 import org.simantics.db.layer0.variable.ProxyChildVariable;
  44 import org.simantics.db.layer0.variable.ProxySessionRequest;
  45 import org.simantics.db.layer0.variable.ProxyVariables;
  46 import org.simantics.db.layer0.variable.StandardAssertedGraphPropertyVariable;
  47 import org.simantics.db.layer0.variable.StandardGraphChildVariable;
  48 import org.simantics.db.layer0.variable.StandardGraphPropertyVariable;
  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.Variables;
  53 import org.simantics.db.procedure.AsyncProcedure;
  54 import org.simantics.db.service.DirectQuerySupport;
  55 import org.simantics.document.base.ontology.DocumentationResource;
  56 import org.simantics.document.server.bean.Command;
  57 import org.simantics.document.server.bean.DataDefinition;
  58 import org.simantics.document.server.handler.AbstractEventHandler;
  59 import org.simantics.document.server.handler.AbstractResponseHandler;
  60 import org.simantics.document.server.handler.EventHandler;
  61 import org.simantics.document.server.io.CommandContext;
  62 import org.simantics.document.server.io.CommandContextImpl;
  63 import org.simantics.document.server.io.CommandContextMutable;
  64 import org.simantics.document.server.io.CommandResult;
  65 import org.simantics.document.server.io.IConsole;
  66 import org.simantics.document.server.request.NodeRequest;
  67 import org.simantics.document.server.request.ServerSCLHandlerValueRequest;
  68 import org.simantics.document.server.request.ServerSCLValueRequest;
  69 import org.simantics.document.server.serverResponse.ServerResponse;
  70 import org.simantics.document.server.serverResponse.SuccessResponse;
  71 import org.simantics.modeling.ModelingResources;
  72 import org.simantics.modeling.scl.SCLRealm;
  73 import org.simantics.modeling.scl.SCLSessionManager;
  74 import org.simantics.modeling.services.CaseInsensitiveComponentFunctionNamingStrategy;
  75 import org.simantics.modeling.services.ComponentNamingStrategy;
  76 import org.simantics.operation.Layer0X;
  77 import org.simantics.project.IProject;
  78 import org.simantics.scl.compiler.module.repository.ImportFailureException;
  79 import org.simantics.scl.compiler.types.TCon;
  80 import org.simantics.scl.compiler.types.Type;
  81 import org.simantics.scl.compiler.types.Types;
  82 import org.simantics.scl.reflection.annotations.SCLValue;
  83 import org.simantics.scl.runtime.SCLContext;
  84 import org.simantics.scl.runtime.function.Function;
  85 import org.simantics.scl.runtime.function.Function1;
  86 import org.simantics.scl.runtime.function.FunctionImpl1;
  87 import org.simantics.scl.runtime.function.FunctionImpl4;
  88 import org.simantics.scl.runtime.reporting.SCLReportingHandler;
  89 import org.simantics.scl.runtime.tuple.Tuple;
  90 import org.simantics.scl.runtime.tuple.Tuple0;
  91 import org.simantics.scl.runtime.tuple.Tuple2;
  92 import org.simantics.scl.runtime.tuple.Tuple3;
  93 import org.simantics.scl.runtime.tuple.Tuple4;
  94 import org.simantics.scl.runtime.tuple.Tuple5;
  95 import org.simantics.simulation.experiment.IExperiment;
  96 import org.simantics.simulation.ontology.SimulationResource;
  97 import org.simantics.simulation.project.IExperimentManager;
  98 import org.simantics.structural2.variables.Connection;
  99 import org.simantics.structural2.variables.StandardProceduralChildVariable;
 100 import org.simantics.structural2.variables.VariableConnectionPointDescriptor;
 101 import org.slf4j.LoggerFactory;
 102
 103 import gnu.trove.map.hash.THashMap;
 104
 105 public class Functions {
 106
 107     private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(Functions.class);
 108
 109     private static class PrimitivePropertyStatementsProcedure implements AsyncProcedure<DirectStatements> {
 110
 111         public DirectStatements result;
 112
 113         @Override
 114         public void execute(AsyncReadGraph graph, DirectStatements result) {
 115             this.result = result;
 116         }
 117
 118         @Override
 119         public void exception(AsyncReadGraph graph, Throwable throwable) {
 120         }
 121
 122     }
 123
 124     @SCLValue(type = "VariableMap")
 125     public static VariableMap primitiveProperties = new VariableMapImpl() {
 126         private void storePropertyValueAndExceptions(ReadGraph graph, Variable parent, String name, Variable property, Map<String, Variable> map) {
 127                 try {
 128                         Object value = property.getValue(graph);
 129                                 map.put(name, new ConstantPropertyVariable(parent, name, value, null));
 130                 } catch (DatabaseException e) {
 131                         Variable propertyExceptions = map.get(NodeRequest.PROPERTY_VALUE_EXCEPTIONS);
 132                         Map<String, Exception> exceptionMap;
 133                         if (propertyExceptions == null) {
 134                                 exceptionMap = new TreeMap<String, Exception>();
 135                                 propertyExceptions = new ConstantPropertyVariable(parent, NodeRequest.PROPERTY_VALUE_EXCEPTIONS, exceptionMap, null);
 136                                 map.put(NodeRequest.PROPERTY_VALUE_EXCEPTIONS, propertyExceptions);
 137                         } else {
 138                                 try {
 139                                                 exceptionMap = propertyExceptions.getValue(graph);
 140                                         } catch (DatabaseException e1) {
 141                                                 Logger.defaultLogError(e1);
 142                                                 return;
 143                                         }
 144                         }
 145                         String label = name;
 146                         try {
 147                                 label = property.getLabel(graph);
 148                         } catch (DatabaseException e2) {
 149
 150                         }
 151                         exceptionMap.put(label, e);
 152                 }
 153         }
 154
 155         @Override
 156         public Variable getVariable(ReadGraph graph, Variable context, String name) throws DatabaseException {
 157             return All.getStandardPropertyDomainPropertyVariableFromValue(graph, context, name);
 158         }
 159
 160         @Override
 161         public Map<String, Variable> getVariables(final ReadGraph graph, Variable context, Map<String, Variable> map) throws DatabaseException {
 162
 163             if(map == null) map = new HashMap<String,Variable>();
 164
 165             Variable parent = context.getParent(graph);
 166
 167             DocumentationResource DOC = DocumentationResource.getInstance(graph);
 168
 169             if(parent instanceof StandardProceduralChildVariable) {
 170
 171                 StandardProceduralChildVariable procedural = (StandardProceduralChildVariable)parent;
 172                 for(Variable property : procedural.getProperties(graph/*, DocumentationResource.URIs.Document_AttributeRelation*/)) {
 173                     if(property instanceof StandardAssertedGraphPropertyVariable) {
 174                         StandardAssertedGraphPropertyVariable ass = (StandardAssertedGraphPropertyVariable)property;
 175                         if("dataDefinitions".equals(ass.property.name) || "commands".equals(ass.property.name)  || "pollingFunction".equals(ass.property.name)) {
 176                                 storePropertyValueAndExceptions(graph, parent, ass.property.name, property, map);
 177                         }
 178                         continue;
 179                     }
 180                     Resource predicate = property.getPossiblePredicateResource(graph);
 181                     if(predicate != null) {
 182                         PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(predicate));
 183                         if(info.hasClassification(DocumentationResource.URIs.Document_AttributeRelation)) {
 184                                 Variable prop = parent.getProperty(graph, predicate);
 185                             storePropertyValueAndExceptions(graph, parent, info.name, prop, map);
 186                         }
 187                     }
 188                 }
 189
 190             } else {
 191
 192                 Resource parentRes = parent.getRepresents(graph);
 193                 {
 194                         Variable prop = new StandardGraphPropertyVariable(graph, parent, DOC.Properties_commands);
 195                         storePropertyValueAndExceptions(graph, parent, "commands", prop, map);
 196                 }
 197
 198                 if (graph.getPossibleObject(parentRes, DOC.Properties_dataDefinitions) != null) {
 199                         Variable prop = new StandardGraphPropertyVariable(graph, parent, DOC.Properties_dataDefinitions);
 200                         storePropertyValueAndExceptions(graph, parent, "dataDefinitions", prop, map);
 201                 }
 202
 203                 DirectQuerySupport dqs = graph.getService(DirectQuerySupport.class);
 204                 PrimitivePropertyStatementsProcedure foo = new PrimitivePropertyStatementsProcedure();
 205
 206                 dqs.forEachDirectPersistentStatement(graph, parentRes, foo);
 207
 208                 for(Statement stm : foo.result) {
 209                     Resource predicate = stm.getPredicate();
 210                     PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(predicate));
 211
 212                     if(info.isHasProperty && info.hasClassification(DocumentationResource.URIs.Document_AttributeRelation)) {
 213                         Variable prop = new StandardGraphPropertyVariable(graph, parent, predicate);
 214                         storePropertyValueAndExceptions(graph, parent, info.name, prop, map);
 215                     } else {
 216                         Resource definition = graph.getPossibleObject(predicate, DOC.Document_definesAttributeRelation);
 217                         if(definition != null) {
 218                                 PropertyInfo info2 = graph.syncRequest(new PropertyInfoRequest(definition));
 219                                 Variable prop = new StandardGraphPropertyVariable(graph, parent, definition);
 220                             map.put(info2.name, new PrimitiveValueVariable(parent, info2.name, prop));
 221                         }
 222                     }
 223                 }
 224             }
 225             return map;
 226
 227         }
 228
 229     };
 230
 231     @SCLValue(type = "VariableMap")
 232     public static VariableMap inputSpaceChildren = new VariableMapImpl() {
 233
 234         private Variable getProxy(ReadGraph graph, Variable context) throws DatabaseException {
 235             Variable root = Variables.getRootVariable(graph);
 236             return new DocumentProxyChildVariable(context, context, root, ProxyChildVariable.CONTEXT_BEGIN);
 237         }
 238
 239         @Override
 240         public Variable getVariable(ReadGraph graph, Variable context, String name) throws DatabaseException {
 241
 242             if(ProxyChildVariable.CONTEXT_BEGIN.equals(name)) return getProxy(graph, context);
 243             return All.standardChildDomainChildren.getVariable(graph, context, name);
 244
 245         }
 246
 247         @Override
 248         public Map<String, Variable> getVariables(ReadGraph graph, Variable context, Map<String, Variable> map) throws DatabaseException {
 249
 250             map = All.standardChildDomainChildren.getVariables(graph, context, map);
 251             if(map == null) map = new THashMap<String,Variable>();
 252             map.put(ProxyChildVariable.CONTEXT_BEGIN, getProxy(graph, context));
 253             return map;
 254
 255         }
 256
 257     };
 258
 259     static class DocumentProxyChildVariable extends ProxyChildVariable {
 260
 261         public DocumentProxyChildVariable(Variable base, Variable parent, Variable other, String name) {
 262             super(base, parent, other, name);
 263         }
 264
 265         @Override
 266         public Variable create(Variable base, Variable parent, Variable other, String name) {
 267             return new DocumentProxyChildVariable(base, parent, other, name);
 268         }
 269
 270         public Variable getPossibleChild(ReadGraph graph, String name) throws DatabaseException {
 271
 272                 if(CONTEXT_END.equals(name)) {
 273                 if(other instanceof ProxyChildVariable) {
 274                         // The context is also a proxy - let it do the job
 275                     return super.getPossibleChild(graph, name);
 276                 } else {
 277                         return new RootVariable(this, base.getRepresents(graph));
 278                 }
 279                 }
 280
 281             return super.getPossibleChild(graph, name);
 282
 283         }
 284
 285         public Collection<Variable> getChildren(ReadGraph graph) throws DatabaseException {
 286
 287             Collection<Variable> result = super.getChildren(graph);
 288             if(!(base instanceof ProxyChildVariable)) {
 289                 result.add(new RootVariable(this, base.getRepresents(graph)));
 290             }
 291             return result;
 292
 293         }
 294
 295     }
 296
 297     static class RootVariable extends StandardGraphChildVariable {
 298
 299         public RootVariable(DocumentProxyChildVariable parent, Resource resource) {
 300             super(parent, null, resource);
 301         }
 302
 303         @Override
 304         public String getName(ReadGraph graph) throws DatabaseException {
 305             return ProxyChildVariable.CONTEXT_END;
 306         }
 307
 308         @SuppressWarnings("deprecation")
 309         @Override
 310         public Variable getNameVariable(ReadGraph graph) throws DatabaseException {
 311             return new ConstantPropertyVariable(this, Variables.NAME, ProxyChildVariable.CONTEXT_END, Bindings.STRING);
 312         }
 313
 314     }
 315
 316     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
 317     public static Variable input(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
 318         Variable session = graph.syncRequest(new ProxySessionRequest(context));
 319         DocumentationResource DOC = DocumentationResource.getInstance(graph);
 320         String uri = session.getPossiblePropertyValue(graph, DOC.Session_inputURI);
 321         if(uri == null) {
 322                 // TODO HAXX - Please fix this
 323                 // we have no URI so this probably means that someone has inserted a non-session
 324                 // into the proxy variable => return that instead
 325                 return session;
 326         }
 327         return Variables.getVariable(graph, uri);
 328     }
 329
 330     public static Variable stateVariable(ReadGraph graph, Variable self) throws DatabaseException {
 331         Variable session = graph.syncRequest(new ProxySessionRequest(self));
 332         if (session == null)
 333                 throw new DatabaseException("No state for " + self.getURI(graph));
 334         return session.getPossibleChild(graph, "__scl__");
 335     }
 336
 337     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
 338     public static Variable state(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
 339         Variable session = graph.syncRequest(new ProxySessionRequest(context));
 340         if (session == null)
 341             throw new DatabaseException("No state for " + context.getURI(graph));
 342         return session.getPossibleChild(graph, "__scl__");
 343     }
 344
 345     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
 346     public static Variable icstate(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
 347         Variable session = graph.syncRequest(new ProxySessionRequest(context));
 348         return session.getPossibleChild(graph, "__icstate__");
 349     }
 350
 351     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
 352     public static Variable session(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
 353         return graph.syncRequest(new ProxySessionRequest(context));
 354     }
 355
 356     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
 357     public static Variable experiment(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
 358         // Try if experiment (run) has been used as the input
 359         Variable var = input(graph, converter, context);
 360         SimulationResource SR = SimulationResource.getInstance(graph);
 361         while(var != null && !graph.isInstanceOf(var.getRepresents(graph), SR.Run)) {
 362             var = var.getParent(graph);
 363         }
 364
 365         if(var != null) {
 366             IExperiment exp = getExperiment(graph, var);
 367             if(exp == null)
 368                 return null;
 369         }
 370
 371         return var;
 372     }
 373
 374     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
 375     public static Variable model(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
 376         Variable var = input(graph, converter, context);
 377         ModelingResources MOD = ModelingResources.getInstance(graph);
 378         while(var != null && !graph.isInstanceOf(var.getRepresents(graph), MOD.StructuralModel)) {
 379             var = var.getParent(graph);
 380         }
 381
 382         return var;
 383     }
 384
 385     private static Collection<Variable> getBroadcasted(ReadGraph graph, Variable target) throws DatabaseException {
 386
 387         ArrayList<Variable> result = new ArrayList<Variable>();
 388
 389         DocumentationResource DOC = DocumentationResource.getInstance(graph);
 390
 391         Variable broadcasted = target.getPossibleProperty(graph, DOC.Relations_broadcasted);
 392         if(broadcasted != null) result.add(broadcasted);
 393
 394         for(Variable child : DocumentServerUtils.getChildrenInOrdinalOrder(graph, target)) {
 395                 result.addAll(getBroadcasted(graph, child));
 396         }
 397
 398         return result;
 399
 400     }
 401
 402     private static List<Command> getCommands(ReadGraph graph, Collection<Variable> commandVariables, String trigger, CommandContext constants, boolean broadcast) throws DatabaseException {
 403
 404         if(commandVariables.isEmpty()) return Collections.emptyList();
 405
 406         String t = trigger;
 407         TreeMap<Integer, List<Command>> sequences = new TreeMap<Integer, List<Command>>();
 408
 409         DocumentationResource DOC = DocumentationResource.getInstance(graph);
 410
 411         int count = 0;
 412         for (Variable c : commandVariables) {
 413
 414             if(trigger == null)
 415                 t = c.getName(graph);
 416
 417             Connection conn = c.getValue(graph);
 418             Variable targetConnectionPoint = DocumentServerUtils.getPossibleCommandTriggerConnectionPoint(graph, c, conn);
 419             if (targetConnectionPoint != null) {
 420                 Variable target = targetConnectionPoint.getParent(graph);
 421                 if (target != null) {
 422
 423                     Boolean enabled = target.getPossiblePropertyValue(graph, DOC.Properties_exists, Bindings.BOOLEAN);
 424                     if(enabled != null && !enabled) continue;
 425
 426                     Integer ordinal;
 427                     if (broadcast) {
 428                         ordinal = ++count;
 429                     } else {
 430                         ordinal = 1;
 431                             try {
 432                                 String o = c.getPossiblePropertyValue(graph, "ordinal");
 433                                 if(o != null)
 434                                     ordinal = Integer.parseInt(o);
 435                             } catch (NumberFormatException e) {}
 436                     }
 437
 438                     String constantKey = target.getPossiblePropertyValue(graph, "constantKey");
 439                     String constantValue = target.getPossiblePropertyValue(graph, "constantValue");
 440
 441                     CommandContextMutable newConstants = (CommandContextMutable)constants;
 442                     if(constantKey != null && constantValue != null) {
 443                         if(!constantKey.isEmpty()) {
 444                                 newConstants = new CommandContextImpl().merge(constants);
 445                                 newConstants.putString(constantKey, constantValue);
 446                         }
 447                     }
 448
 449                     String requiredKey = target.getPossiblePropertyValue(graph, "requiredKey");
 450                     if(requiredKey != null && !requiredKey.isEmpty()) {
 451                         if (newConstants == constants) {
 452                                 newConstants = new CommandContextImpl().merge(constants);
 453                         }
 454                                 newConstants.putRow(CommandContext.REQUIRED_KEYS, Collections.<Object>singletonList(requiredKey));
 455                     }
 456
 457                     String forbiddenKey = target.getPossiblePropertyValue(graph, "forbiddenKey");
 458                     if(forbiddenKey != null && !forbiddenKey.isEmpty()) {
 459                         if (newConstants == constants) {
 460                                 newConstants = new CommandContextImpl().merge(constants);
 461                         }
 462                                 newConstants.putRow(CommandContext.FORBIDDEN_KEYS, Collections.<Object>singletonList(forbiddenKey));
 463                     }
 464
 465                     if(DOC.Relations_broadcast.equals(targetConnectionPoint.getPredicateResource(graph))) {
 466
 467                         // This is a broadcast terminal of a container
 468                         List<Command> broadcastCommands = getCommands(graph, getBroadcasted(graph, target), t, newConstants, true);
 469                         sequences.put(ordinal, broadcastCommands);
 470
 471                     } else {
 472
 473                         Command command = new Command(DocumentServerUtils.getId(graph, target), t,
 474                                         targetConnectionPoint.getName(graph), newConstants);
 475                         sequences.put(ordinal, Collections.singletonList(command));
 476
 477                     }
 478
 479                 }
 480             }
 481         }
 482
 483         List<Command> commands = new ArrayList<Command>();
 484         for (List<Command> commandList : sequences.values()) {
 485                 for (Command command : commandList) {
 486                         commands.add(command);
 487                 }
 488         }
 489
 490         return commands;
 491     }
 492
 493     /**
 494      * Commands
 495      *
 496      * @param graph
 497      * @param variable
 498      * @return
 499      * @throws DatabaseException
 500      */
 501     public static List<Command> commandList(ReadGraph graph, Variable variable) throws DatabaseException {
 502         return getCommands(graph, DocumentServerUtils.getTriggerCommands(graph, variable.getParent(graph)), null, new CommandContextImpl(), false);
 503     }
 504
 505     /**
 506      * Data definitions
 507      *
 508      * @param graph
 509      * @param variable
 510      * @return
 511      * @throws DatabaseException
 512      */
 513     public static List<DataDefinition> dataDefinitions(ReadGraph graph, Variable variable) throws DatabaseException {
 514         DocumentationResource DOC = DocumentationResource.getInstance(graph);
 515         ArrayList<DataDefinition> dataDefinitions = new ArrayList<DataDefinition>();
 516         // Find data definition connections
 517         for (Variable dataDefinitionRelation : DocumentServerUtils.getDataDefinitions(graph, variable.getParent(graph))) {
 518             Connection dataDefinitionConnection = dataDefinitionRelation.getValue(graph);
 519             // Find data the other end of definition connection
 520             Collection<Variable> dataDefinitionProviders = DocumentServerUtils.getPossibleOtherConnectionPoints(graph,
 521                     dataDefinitionRelation, dataDefinitionConnection);
 522             if (dataDefinitionProviders != null) {
 523
 524                 for(Variable dataDefinitionProvider : dataDefinitionProviders) {
 525
 526                     Variable dataDefinition = dataDefinitionProvider.getParent(graph);
 527                     if (dataDefinition != null) {
 528                         // Found other end. Is should contain ONE data
 529 // definition connection to the actual data
 530                         Collection<Variable> dataCollection = DocumentServerUtils.getDataRelations(graph, dataDefinition);
 531                         if (dataCollection.size() == 1) {
 532                             Variable dataRelation = dataCollection.iterator().next();
 533                             Connection dataConnection = dataRelation.getValue(graph);
 534                             // Find data the other end of definition connection
 535                             Variable dataConnectionPoint = DocumentServerUtils.getPossibleOtherConnectionPoint(graph,
 536                                     dataRelation, dataConnection);
 537                             if (dataConnectionPoint != null) {
 538                                 Variable data = dataConnectionPoint.getParent(graph);
 539                                 Resource type = dataDefinition.getPossibleType(graph, DOC.Components_Component);
 540
 541                                 if (graph.isInheritedFrom(type, DOC.Components_DefVar)) {
 542
 543                                         String sourceProperty = dataDefinition.getPropertyValue(graph, DOC.Properties_source,
 544                                                 Bindings.STRING);
 545                                         String targetProperty = dataDefinition.getPropertyValue(graph, DOC.Properties_target,
 546                                                 Bindings.STRING);
 547
 548                                         dataDefinitions.add(new DataDefinition(DocumentServerUtils.getId(graph, data),
 549                                                         sourceProperty, targetProperty));
 550
 551                                 } else if (graph.isInheritedFrom(type, DOC.Components_DefVars)) {
 552
 553                                         List<String> sourcesProperty = toList(dataDefinition.getPropertyValue(graph, DOC.Properties_sources), String.class);
 554                                         List<String> targetsProperty = toList(dataDefinition.getPropertyValue(graph, DOC.Properties_targets), String.class);
 555
 556                                         for (int i = 0; i < Math.min(sourcesProperty.size(), targetsProperty.size()); i++) {
 557                                                 dataDefinitions.add(new DataDefinition(DocumentServerUtils.getId(graph, data),
 558                                                         sourcesProperty.get(i), targetsProperty.get(i)));
 559                                         }
 560                                 }
 561                             }
 562                         }
 563                     }
 564                 }
 565             }
 566         }
 567         return dataDefinitions;
 568     }
 569
 570     @SuppressWarnings("unchecked")
 571         private static <T> List<T> toList(Object o, Class<T> c) {
 572         List<T> result = null;
 573         if (o instanceof List) {
 574                 return (List<T>)o;
 575         } else if (o instanceof Object[]) {
 576                 result = new ArrayList<T>(((Object[])o).length);
 577                 for (T item : (T[])o) {
 578                         result.add(item);
 579                 }
 580                 return result;
 581         } else {
 582                 return Collections.<T>emptyList();
 583         }
 584     }
 585
 586     @Deprecated
 587     public static AbstractEventHandler emptyOnClick(ReadGraph graph) throws DatabaseException {
 588         return new EventHandler() {
 589             @Override
 590             public ServerResponse handle(ReadGraph graph, CommandContext parameters) throws DatabaseException {
 591                 return null;
 592             }
 593         };
 594     }
 595
 596     @Deprecated
 597     public static AbstractEventHandler writeEventHandler(ReadGraph graph, final Variable variable, final Function fn) {
 598
 599         final Session session = graph.getSession();
 600
 601         return new AbstractEventHandler() {
 602
 603                         @Override
 604                         public CommandResult handle(final CommandContext parameters) {
 605
 606                 final SCLReportingHandler printer = (SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
 607
 608                 try {
 609
 610                                         String result = session.sync(new WriteResultRequest<String>() {
 611
 612                                             @Override
 613                                             public String perform(WriteGraph graph) throws DatabaseException {
 614                                                 SCLContext sclContext = SCLContext.getCurrent();
 615                                                 Object oldGraph = sclContext.put("graph", graph);
 616                                                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 617                                                 try {
 618                                                     Function1<String,String> pf = new FunctionImpl1<String,String>() {
 619                                                         @Override
 620                                                         public String apply(String key) {
 621                                                             return parameters.getString(key);
 622                                                         }
 623                                                     };
 624                                                     Object response = (String)fn.apply(variable, pf);
 625                                                     if(response instanceof String) {
 626                                                         return (String)response;
 627                                                     }
 628                                                     return null;
 629                                                 } finally {
 630                                                         sclContext.put("graph", oldGraph);
 631                                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
 632                                                 }
 633
 634                                             }
 635
 636                                         });
 637
 638                         return new SuccessResponse(result);
 639
 640                                 } catch (Throwable e) {
 641                                         Logger.defaultLogError(e);
 642                                         return new org.simantics.document.server.serverResponse.Error(e.getMessage());
 643                                 }
 644
 645                         }
 646
 647         };
 648     }
 649
 650     @Deprecated
 651     public static AbstractEventHandler readEventHandler(ReadGraph graph, final Variable variable, final Function fn) {
 652
 653         final Session session = graph.getSession();
 654
 655         return new AbstractEventHandler() {
 656
 657                         @Override
 658                         public CommandResult handle(final CommandContext parameters) {
 659
 660                 final SCLReportingHandler printer = (SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
 661
 662                 try {
 663
 664                                         String result = session.sync(new UniqueRead<String>() {
 665
 666                                             @Override
 667                                             public String perform(ReadGraph graph) throws DatabaseException {
 668                                                 SCLContext sclContext = SCLContext.getCurrent();
 669                                                 Object oldGraph = sclContext.put("graph", graph);
 670                                                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 671                                                 try {
 672                                                     Function1<String,String> pf = new FunctionImpl1<String,String>() {
 673                                                         @Override
 674                                                         public String apply(String key) {
 675                                                             return parameters.getString(key);
 676                                                         }
 677                                                     };
 678                                                     Object response = (String)fn.apply(variable, pf);
 679                                                     if(response instanceof String) {
 680                                                         return (String)response;
 681                                                     }
 682                                                     return null;
 683                                                 } finally {
 684                                                         sclContext.put("graph", oldGraph);
 685                                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
 686                                                 }
 687
 688                                             }
 689
 690                                         });
 691
 692                         return new SuccessResponse(result);
 693
 694                                 } catch (Throwable e) {
 695                                         Logger.defaultLogError(e);
 696                                         return new org.simantics.document.server.serverResponse.Error(e.getMessage());
 697                                 }
 698
 699                         }
 700
 701         };
 702     }
 703
 704     @Deprecated
 705     public static AbstractEventHandler readEventHandler2(ReadGraph graph, final Function fn) {
 706
 707         final Session session = graph.getSession();
 708
 709         return new AbstractEventHandler() {
 710
 711                         @Override
 712                         public CommandResult handle(final CommandContext parameters) {
 713
 714                 final SCLReportingHandler printer = (SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
 715
 716                 try {
 717
 718                         CommandResult result = session.sync(new UniqueRead<CommandResult>() {
 719
 720                                             @Override
 721                                             public CommandResult perform(ReadGraph graph) throws DatabaseException {
 722                                                 SCLContext sclContext = SCLContext.getCurrent();
 723                                                 Object oldGraph = sclContext.put("graph", graph);
 724                                                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 725                                                 try {
 726                                                     Object response = fn.apply(parameters);
 727                                                     if(response instanceof CommandResult) {
 728                                                         return (CommandResult)response;
 729                                                     }
 730                                                     return null;
 731                                                 } finally {
 732                                                         sclContext.put("graph", oldGraph);
 733                                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
 734                                                 }
 735
 736                                             }
 737
 738                                         });
 739
 740                         return result;
 741
 742                                 } catch (Throwable e) {
 743                                         Logger.defaultLogError(e);
 744                                         return new org.simantics.document.server.serverResponse.Error(e.getMessage());
 745                                 }
 746
 747                         }
 748
 749         };
 750     }
 751
 752     public static AbstractEventHandler responseHandler(ReadGraph graph, Variable self, String function) throws DatabaseException {
 753
 754         Variable anyFunction = self.browse(graph, ".#" + function);
 755         if(anyFunction == null) return null;
 756
 757         final List<TCon> effects = ServerSCLHandlerValueRequest.getEffects(graph, anyFunction);
 758
 759         Function1<CommandContext, CommandResult> fn = anyFunction.getValue(graph);
 760         //String expression = anyFunction.getPropertyValue(graph, "expression");
 761
 762         final Session session = graph.getSession();
 763
 764         return new AbstractResponseHandler(fn) {
 765
 766                 private String formatError(RequestProcessor proc, Throwable t) {
 767
 768                         try {
 769
 770                                         return proc.syncRequest(new UniqueRead<String>() {
 771
 772                                                 @Override
 773                                                 public String perform(ReadGraph graph) throws DatabaseException {
 774                                                         Variable proxy = ProxyVariables.proxyVariableRoot(graph, anyFunction);
 775                                                         String uri2 = proxy.getURI(graph);
 776                                                         String uri = self.getParent(graph).getURI(graph);
 777
 778                                                         String path = uri.substring(uri2.length());
 779
 780                                                         String expr = anyFunction.getPossiblePropertyValue(graph, "expression");
 781                                                         StringBuilder message = new StringBuilder();
 782                                                         message.append("Handler execution failed\n");
 783                                                         message.append(" handler=" + path + "\n");
 784                                                         message.append(" expression=" + expr + "\n");
 785                                                         message.append(" message=" + t.getMessage() + "\n");
 786
 787                                                         StringWriter sw = new StringWriter();
 788                                                         t.printStackTrace(new PrintWriter(sw));
 789                                                         message.append(" stack trace=" + sw);
 790
 791                                                         return message.toString();
 792                                                 }
 793
 794                                         });
 795
 796                                 } catch (DatabaseException e) {
 797
 798                                         return e.getMessage();
 799
 800                                 }
 801
 802                 }
 803
 804                         @Override
 805                         public CommandResult handle(final CommandContext parameters) {
 806
 807                                 IConsole console = parameters.getValue("__console__");
 808                                 SCLReportingHandler printer = (console != null) ? new ConsoleSCLReportingHandler(console)
 809                                                 : (SCLReportingHandler) SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
 810
 811                 try {
 812
 813                         Object result = null;
 814                         if(effects.contains(Types.WRITE_GRAPH)) {
 815
 816                                 result = session.syncRequest(new WriteResultRequest<Object>() {
 817
 818                                                         @Override
 819                                                         public Object perform(WriteGraph graph)
 820                                                                         throws DatabaseException {
 821                                                 SCLContext sclContext = SCLContext.getCurrent();
 822                                                 Object oldGraph = sclContext.put("graph", graph);
 823                                                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 824                                                 try {
 825                                                         return fn.apply(parameters);
 826                                                 } finally {
 827                                                         sclContext.put("graph", oldGraph);
 828                                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
 829                                                 }
 830
 831                                                         }
 832                                 });
 833
 834                         } else if(effects.contains(Types.READ_GRAPH)) {
 835
 836                                 result = session.sync(new UniqueRead<Object>() {
 837
 838                                         @Override
 839                                         public Object perform(ReadGraph graph) throws DatabaseException {
 840
 841                                                 SCLContext sclContext = SCLContext.getCurrent();
 842                                                 Object oldGraph = sclContext.put("graph", graph);
 843                                                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 844
 845                                                 try {
 846                                                         return fn.apply(parameters);
 847                                                 } finally {
 848                                                         sclContext.put("graph", oldGraph);
 849                                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
 850                                                 }
 851
 852                                         }
 853                                 });
 854
 855                         } else {
 856
 857                                                 SCLContext sclContext = SCLContext.getCurrent();
 858                                                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 859                                                 try {
 860                                                         result = fn.apply(parameters);
 861                                                 } finally {
 862                                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
 863                                                 }
 864
 865                         }
 866
 867                         if (result instanceof org.simantics.document.server.serverResponse.Error) {
 868                                 return (CommandResult)result;
 869                         }
 870
 871                         if (result instanceof CommandResult) {
 872                                 return (CommandResult)result;
 873                         } else {
 874                                 CommandContextMutable assignments = new CommandContextImpl();
 875                                 assignments.putValue("result", result);
 876                                 return new ServerResponse(200, "", assignments);
 877                         }
 878
 879                                 } catch (Throwable e) {
 880                                         return new org.simantics.document.server.serverResponse.Error(formatError(Simantics.getSession(), e));
 881                                 }
 882
 883                         }
 884
 885         };
 886     }
 887
 888     @Deprecated
 889     public static AbstractEventHandler writeEventHandler2(ReadGraph graph, final Function fn) {
 890
 891         final Session session = graph.getSession();
 892
 893         return new AbstractEventHandler() {
 894
 895                         @Override
 896                         public CommandResult handle(final CommandContext parameters) {
 897
 898                 final SCLReportingHandler printer = (SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
 899
 900                 try {
 901
 902                         CommandResult result = session.syncRequest(new WriteResultRequest<CommandResult>() {
 903
 904                                             @Override
 905                                             public CommandResult perform(WriteGraph graph) throws DatabaseException {
 906                                                 SCLContext sclContext = SCLContext.getCurrent();
 907                                                 Object oldGraph = sclContext.put("graph", graph);
 908                                                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 909                                                 try {
 910                                                     Object response = fn.apply(parameters);
 911                                                     if(response instanceof CommandResult) {
 912                                                         return (CommandResult)response;
 913                                                     }
 914                                                     return null;
 915                                                 } finally {
 916                                                         sclContext.put("graph", oldGraph);
 917                                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
 918                                                 }
 919
 920                                             }
 921
 922                                         });
 923
 924                         return result;
 925
 926                                 } catch (Throwable e) {
 927                                         Logger.defaultLogError(e);
 928                                         return new org.simantics.document.server.serverResponse.Error(e.getMessage());
 929                                 }
 930
 931                         }
 932
 933         };
 934     }
 935
 936
 937     @Deprecated
 938     public static AbstractEventHandler eventHandler2(ReadGraph graph, final Function fn) {
 939
 940         return new AbstractEventHandler() {
 941
 942                         @Override
 943                         public CommandResult handle(final CommandContext parameters) {
 944
 945                 final SCLReportingHandler printer = (SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
 946
 947                 try {
 948
 949                         SCLContext sclContext = SCLContext.getCurrent();
 950                         Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 951                         try {
 952                                 Object response = fn.apply(parameters);
 953                                 if(response instanceof CommandResult) {
 954                                         return (CommandResult)response;
 955                                 }
 956                                 return null;
 957                         } finally {
 958                                 sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
 959                         }
 960
 961                                 } catch (Throwable e) {
 962                                         Logger.defaultLogError(e);
 963                                         return new org.simantics.document.server.serverResponse.Error(e.getMessage());
 964                                 }
 965
 966                         }
 967
 968         };
 969     }
 970
 971     @Deprecated
 972     public static AbstractEventHandler eventHandler(ReadGraph graph, final Function fn) {
 973
 974         return new AbstractEventHandler() {
 975
 976                         @Override
 977                         public CommandResult handle(final CommandContext parameters) {
 978
 979                 final SCLReportingHandler printer = (SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
 980
 981                 try {
 982
 983                         String result = "";
 984
 985                                 SCLContext sclContext = SCLContext.getCurrent();
 986                                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
 987                                 try {
 988                                     Function1<String,String> pf = new FunctionImpl1<String,String>() {
 989                                         @Override
 990                                         public String apply(String key) {
 991                                             return parameters.getString(key);
 992                                         }
 993                                     };
 994                                     Object response = (String)fn.apply(pf);
 995                                     if(response instanceof String) {
 996                                         result = (String)response;
 997                                     }
 998                                 } finally {
 999                                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
1000                                 }
1001
1002                         return new SuccessResponse(result);
1003
1004                                 } catch (Throwable e) {
1005                                         Logger.defaultLogError(e);
1006                                         return new org.simantics.document.server.serverResponse.Error(e.getMessage());
1007                                 }
1008
1009                         }
1010
1011         };
1012     }
1013
1014     @SCLValue(type = "ReadGraph -> Resource -> Variable -> a")
1015     public static Object sclValue(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
1016         return ServerSCLValueRequest.compileAndEvaluate(graph, context);
1017     }
1018
1019     @SCLValue(type = "ReadGraph -> Resource -> Variable -> a")
1020     public static Object sclHandlerValue(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
1021         return ServerSCLHandlerValueRequest.compileAndEvaluate(graph, context);
1022     }
1023
1024     @SCLValue(type = "ReadGraph -> Resource -> Resource -> ComponentNamingStrategy")
1025     public static ComponentNamingStrategy componentNamingStrategy(ReadGraph graph, Resource converter, Resource context) throws DatabaseException {
1026         return createComponentNamingStrategy(graph);
1027     }
1028
1029     public static CaseInsensitiveComponentFunctionNamingStrategy createComponentNamingStrategy(ReadGraph graph) throws DatabaseException {
1030         Layer0X L0X = Layer0X.getInstance(graph);
1031         @SuppressWarnings({ "unchecked", "rawtypes" })
1032         final Function dependencies = graph.syncRequest(new Adapter(L0X.DependencyResources, Function.class), TransientCacheListener.<Function>instance());
1033         @SuppressWarnings("rawtypes")
1034         Function moduleNameFunction = new FunctionImpl4<ReadGraph, Resource, String, Integer, List<Map<String, Object>>>() {
1035             @Override
1036             public Object apply(ReadGraph p0, Resource p1, String p2) {
1037                 return apply(p0, p1, p2);
1038             }
1039             @SuppressWarnings("unchecked")
1040             @Override
1041             public List<Map<String, Object>> apply(ReadGraph graph, Resource model, String search, Integer maxResults) {
1042                 return (List<Map<String, Object>>)dependencies.apply(graph, model, search, maxResults);
1043             }
1044         };
1045         return new CaseInsensitiveComponentFunctionNamingStrategy("%s%02d", moduleNameFunction);
1046     }
1047
1048     public static IExperiment getExperiment(ReadGraph graph, Variable variable) throws DatabaseException {
1049         if (variable == null)
1050             return null;
1051
1052         SimulationResource SIMU = SimulationResource.getInstance(graph);
1053
1054         Variable var = variable;
1055         Resource represents = var.getRepresents(graph);
1056         Resource activeRun = null;
1057         if (represents != null && graph.isInstanceOf(represents, SIMU.Run)) {
1058             activeRun = represents;
1059         }
1060
1061         IProject project = Simantics.peekProject();
1062         if (activeRun != null && project != null) {
1063             IExperimentManager expMan = project.getHint(IExperimentManager.KEY_EXPERIMENT_MANAGER);
1064             if (expMan != null)
1065                 return expMan.getExperiment(NameUtils.getSafeName(graph, activeRun));
1066         }
1067
1068         return null;
1069     }
1070
1071     public static CommandContextMutable putTuple(CommandContextMutable context, String key, Object tuple) {
1072         List<Object> list = new ArrayList<Object>();
1073         if (tuple instanceof Tuple) {
1074                 Collections.addAll(list, ((Tuple)tuple).toArray());
1075         } else {
1076                 list.add(tuple);
1077         }
1078         context.putRow(key, list);
1079         return context;
1080     }
1081
1082     public static List<Object> getTuples(CommandContext context, String key) {
1083         List<List<Object>> rows = context.getRows(key);
1084         List<Object> tuples = new ArrayList<Object>();
1085         if (rows != null) {
1086                 for (List<Object> row : rows) {
1087                         switch (row.size()) {
1088                         case 0: tuples.add(Tuple0.INSTANCE); break;
1089                         case 1: tuples.add(row.get(1)); break;
1090                         case 2: tuples.add(new Tuple2(row.get(0), row.get(1))); break;
1091                         case 3: tuples.add(new Tuple3(row.get(0), row.get(1), row.get(2))); break;
1092                         case 4: tuples.add(new Tuple4(row.get(0), row.get(1), row.get(2), row.get(3))); break;
1093                         case 5: tuples.add(new Tuple5(row.get(0), row.get(1), row.get(2), row.get(3), row.get(4))); break;
1094                         }
1095                 }
1096         }
1097         return tuples;
1098     }
1099
1100     public static String printContext(CommandContext context) {
1101         return context.toString();
1102     }
1103
1104     @SCLValue(type = "AbstractEventHandler")
1105     public static AbstractEventHandler emptyEvent = new AbstractEventHandler() {
1106
1107                 @Override
1108                 public CommandResult handle(CommandContext context) {
1109                         return null;
1110                 }
1111
1112     };
1113
1114     public static String sclStateKey(ReadGraph graph, Variable base, Variable self, String ref) throws DatabaseException {
1115
1116         String baseURI = base.getURI(graph);
1117
1118         String selfURI = self.getURI(graph);
1119
1120         String prefix = selfURI.substring(0, selfURI.indexOf(ProxyChildVariable.CONTEXT_BEGIN));
1121         String suffix = selfURI.substring(selfURI.lastIndexOf(ProxyChildVariable.CONTEXT_END) + ProxyChildVariable.CONTEXT_END.length());
1122         String stripped = prefix + suffix;
1123
1124         String relative = Variables.getRelativeRVI(baseURI, stripped);
1125
1126         return Variables.getRVI(relative, ref);
1127
1128     }
1129
1130     public static Variable sclStateVariable(ReadGraph graph, Variable base, Variable self, String ref) throws DatabaseException {
1131
1132         String id = sclStateKey(graph, base, self, ref);
1133
1134         Variable sclVar = base.getPossibleChild(graph, "__scl__");
1135         if(sclVar == null) return null;
1136
1137         return sclVar.getPossibleProperty(graph, id);
1138
1139     }
1140
1141     public static Object sclStateValueOrDefault(ReadGraph graph, Variable base, Variable self, String ref, Object defaultValue) throws DatabaseException {
1142
1143         Variable stateVariable = sclStateVariable(graph, base, self, ref);
1144         if (stateVariable != null) {
1145
1146                 return stateVariable.getValue(graph);
1147
1148         } else {
1149
1150                 String id = sclStateKey(graph, base, self, ref);
1151
1152                 SCLRealm realm = SCLSessionManager.getOrCreateSCLRealm(base.getURI(graph) + "/__scl__");
1153                 realm.getConnection().setVariable(id, getSCLType(defaultValue), defaultValue);
1154
1155                 return defaultValue;
1156
1157         }
1158     }
1159
1160     public static void setSclStateValue(WriteGraph graph, Variable base, Variable self, String ref, Object value) throws DatabaseException {
1161
1162         String id = sclStateKey(graph, base, self, ref);
1163
1164         SCLRealm realm = SCLSessionManager.getOrCreateSCLRealm(base.getURI(graph)+"/__scl__");
1165         realm.getConnection().setVariable(id, getSCLType(value), value);
1166         realm.refreshVariablesSync();
1167
1168     }
1169
1170     public static Object projectComponentState(ReadGraph graph, Variable self, String ref, Object defaultValue) throws DatabaseException {
1171         Resource project = Simantics.getProjectResource();
1172         Variable component = self.getParent(graph);
1173         Variable projectVariable = Variables.getVariable(graph, project);
1174         return sclStateValueOrDefault(graph, projectVariable, component, ref, defaultValue);
1175     }
1176
1177     public static void setProjectComponentState(WriteGraph graph, Variable self, String ref, Object value) throws DatabaseException {
1178         Resource project = Simantics.getProjectResource();
1179         Variable component = self.getParent(graph);
1180         Variable projectVariable = Variables.getVariable(graph, project);
1181         setSclStateValue(graph, projectVariable, component, ref, value);
1182     }
1183
1184     private static Type getSCLType(Object value) throws DatabaseException {
1185         Binding b = Bindings.getBindingUnchecked(value.getClass());
1186         Datatype t = b.type();
1187         if(Datatypes.STRING.equals(t)) return Types.STRING;
1188         if(Datatypes.DOUBLE.equals(t)) return Types.DOUBLE;
1189         throw new DatabaseException("Type not supported");
1190     }
1191
1192     public static List<Variable> documentModelContribution(ReadGraph graph, Resource doc) throws DatabaseException {
1193         Resource project = Simantics.getProjectResource();
1194         ArrayList<Variable> result = new ArrayList<Variable>();
1195         for(Resource model : graph.syncRequest(new ProjectModels(project))) {
1196                 result.add(Variables.getVariable(graph, model));
1197         }
1198         return result;
1199     }
1200
1201     public static String documentModelContributionLabel(ReadGraph graph, Variable var) throws DatabaseException {
1202         return var.getName(graph);
1203     }
1204
1205     public static Object getPropertyValueCached(ReadGraph graph, Variable variable, String name, Binding binding) throws DatabaseException {
1206         Variable property = graph.syncRequest(new VariableProperty(variable, name));
1207         return graph.syncRequest(new VariableValueWithBinding<Object>(property, binding));
1208     }
1209
1210     public static class ParentExistsRequest extends VariableRead<Boolean> {
1211
1212                 public ParentExistsRequest(Variable parent) {
1213                         super(parent);
1214                 }
1215
1216                 @Override
1217                 public Boolean perform(ReadGraph graph) throws DatabaseException {
1218
1219                         Variable existsProperty = variable.getPossibleProperty(graph, "exists");
1220                         if(existsProperty == null) return true;
1221
1222                         Boolean exists = existsProperty.getPossibleValue(graph, Bindings.BOOLEAN);
1223                         if (exists == null || !exists) return false;
1224
1225                 return graph.syncRequest(new ParentExistsRequest(variable.getParent(graph)));
1226
1227                 }
1228
1229     }
1230
1231     public static class PathExistsRequest extends VariableRead<Boolean> {
1232
1233                 public PathExistsRequest(Variable variable) {
1234                         super(variable);
1235                 }
1236
1237                 @Override
1238                 public Boolean perform(ReadGraph graph) throws DatabaseException {
1239
1240                         Variable widget = variable.getParent(graph);
1241
1242                 Boolean exists = widget.getPossiblePropertyValue(graph, "exists");
1243                         if (exists == null || !exists) return false;
1244
1245                 if (!graph.syncRequest(new ParentExistsRequest(widget.getParent(graph)))) return false;
1246
1247                 DocumentationResource DOC = DocumentationResource.getInstance(graph);
1248                 Collection <Variable> cps = widget.getProperties(graph, DocumentationResource.URIs.Relations_parentRelation);
1249                 for (Variable cp : cps) {
1250
1251                         Connection conn = cp.getValue(graph);
1252                                 Variable otherCp = DocumentServerUtils.getPossibleChildConnectionPoint(graph, cp, conn);
1253                                 if (otherCp != null) {
1254                                         Variable parentWidget = otherCp.getParent(graph);
1255                                         if (parentWidget.<Boolean>getPropertyValue(graph, "pathExists")) {
1256                                                 return true;
1257                                         }
1258                                 } else {
1259                                         Variable parentCp = graph.sync(new UnaryRead<Connection, Variable>(conn) {
1260                                     @Override
1261                                     public Variable perform(ReadGraph graph) throws DatabaseException {
1262                                         DocumentationResource DOC = DocumentationResource.getInstance(graph);
1263                                         Collection<VariableConnectionPointDescriptor> descs = parameter.getConnectionPointDescriptors(graph, null);
1264
1265                                                 for(VariableConnectionPointDescriptor desc : descs) {
1266                                                         if (DOC.Relations_partN.equals(desc.getConnectionPointResource(graph))) {
1267                                                                 return desc.getVariable(graph);
1268                                                         }
1269                                                 }
1270                                                 return null;
1271                                     }
1272                                 });
1273                                         if (parentCp != null) {
1274                                                 Variable parentWidget = parentCp.getParent(graph);
1275                                                 if (parentWidget.<Boolean>getPropertyValue(graph, "pathExists")) {
1276                                                         return true;
1277                                                 }
1278                                         }
1279                                 }
1280                         }
1281
1282                         Resource type = widget.getType(graph);
1283                         return graph.isInheritedFrom(type, DOC.Components_ParentlessComponent) ||
1284                                 (graph.isInheritedFrom(type, DOC.DocumentComponent) && cps.isEmpty());
1285                 }
1286     }
1287
1288     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Boolean")
1289     public static boolean pathExists(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
1290         return graph.syncRequest(new PathExistsRequest(context));
1291     }
1292
1293     public static String compileDocumentSCLValueExpression(ReadGraph graph, Variable context) {
1294         try {
1295             ServerSCLValueRequest.validate(graph, context);
1296             return "";
1297         } catch (Exception e) {
1298             return resolveIssueMessage(e);
1299         }
1300     }
1301
1302     private static String resolveIssueMessage(Exception e) {
1303         if (e instanceof ImportFailureException)
1304             return "";
1305         if (e.getCause() != null && e.getCause() instanceof ImportFailureException)
1306             return "";
1307         if (e instanceof SCLDatabaseException) {
1308             SCLDatabaseException ee = (SCLDatabaseException) e;
1309             return ee.getMessage();
1310         }
1311         if (LOGGER.isDebugEnabled())
1312             LOGGER.debug("", e);
1313         return e.getMessage();
1314     }
1315
1316 }