gerrit.simantics Code Review - simantics/platform.git/blob

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2012 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.modeling.typicals;\r
  13 \r
  14 import gnu.trove.map.hash.THashMap;\r
  15 import gnu.trove.set.hash.THashSet;\r
  16 \r
  17 import java.awt.geom.Point2D;\r
  18 import java.util.ArrayList;\r
  19 import java.util.Collection;\r
  20 import java.util.Collections;\r
  21 import java.util.Date;\r
  22 import java.util.HashMap;\r
  23 import java.util.HashSet;\r
  24 import java.util.Iterator;\r
  25 import java.util.List;\r
  26 import java.util.Map;\r
  27 import java.util.Set;\r
  28 \r
  29 import org.eclipse.core.runtime.IProgressMonitor;\r
  30 import org.simantics.Logger;\r
  31 import org.simantics.Simantics;\r
  32 import org.simantics.databoard.Bindings;\r
  33 import org.simantics.db.ReadGraph;\r
  34 import org.simantics.db.Resource;\r
  35 import org.simantics.db.Statement;\r
  36 import org.simantics.db.WriteGraph;\r
  37 import org.simantics.db.common.CommentMetadata;\r
  38 import org.simantics.db.common.NamedResource;\r
  39 import org.simantics.db.common.primitiverequest.Adapter;\r
  40 import org.simantics.db.common.procedure.adapter.TransientCacheListener;\r
  41 import org.simantics.db.common.request.ObjectsWithType;\r
  42 import org.simantics.db.common.request.PossibleIndexRoot;\r
  43 import org.simantics.db.common.request.WriteRequest;\r
  44 import org.simantics.db.common.uri.UnescapedChildMapOfResource;\r
  45 import org.simantics.db.common.utils.CommonDBUtils;\r
  46 import org.simantics.db.common.utils.NameUtils;\r
  47 import org.simantics.db.exception.DatabaseException;\r
  48 import org.simantics.db.layer0.adapter.Instances;\r
  49 import org.simantics.db.layer0.request.ActiveModels;\r
  50 import org.simantics.db.layer0.util.RemoverUtil;\r
  51 import org.simantics.diagram.content.ConnectionUtil;\r
  52 import org.simantics.diagram.handler.CopyPasteStrategy;\r
  53 import org.simantics.diagram.handler.ElementObjectAssortment;\r
  54 import org.simantics.diagram.handler.PasteOperation;\r
  55 import org.simantics.diagram.handler.Paster;\r
  56 import org.simantics.diagram.stubs.DiagramResource;\r
  57 import org.simantics.diagram.synchronization.CollectingModificationQueue;\r
  58 import org.simantics.diagram.synchronization.CopyAdvisor;\r
  59 import org.simantics.diagram.synchronization.SynchronizationHints;\r
  60 import org.simantics.diagram.synchronization.graph.GraphSynchronizationContext;\r
  61 import org.simantics.diagram.ui.DiagramModelHints;\r
  62 import org.simantics.document.DocumentResource;\r
  63 import org.simantics.g2d.canvas.ICanvasContext;\r
  64 import org.simantics.g2d.diagram.DiagramClass;\r
  65 import org.simantics.g2d.diagram.IDiagram;\r
  66 import org.simantics.g2d.diagram.impl.Diagram;\r
  67 import org.simantics.layer0.Layer0;\r
  68 import org.simantics.modeling.ModelingResources;\r
  69 import org.simantics.modeling.ModelingUtils;\r
  70 import org.simantics.modeling.mapping.ModelingSynchronizationHints;\r
  71 import org.simantics.modeling.typicals.rules.AuxKeys;\r
  72 import org.simantics.modeling.typicals.rules.FlagRule;\r
  73 import org.simantics.modeling.typicals.rules.InstanceOfRule;\r
  74 import org.simantics.modeling.typicals.rules.LabelRule;\r
  75 import org.simantics.modeling.typicals.rules.MonitorRule;\r
  76 import org.simantics.modeling.typicals.rules.NameRule;\r
  77 import org.simantics.modeling.typicals.rules.ProfileMonitorRule;\r
  78 import org.simantics.modeling.typicals.rules.SVGElementRule;\r
  79 import org.simantics.modeling.typicals.rules.TransformRule;\r
  80 import org.simantics.scenegraph.g2d.events.command.Commands;\r
  81 import org.simantics.scl.runtime.function.Function4;\r
  82 import org.simantics.structural.stubs.StructuralResource2;\r
  83 import org.simantics.utils.datastructures.MapSet;\r
  84 import org.simantics.utils.strings.AlphanumComparator;\r
  85 import org.simantics.utils.strings.EString;\r
  86 import org.simantics.utils.ui.ErrorLogger;\r
  87 \r
  88 /**\r
  89  * A write request that synchronizes typical master templates and their\r
  90  * instances as specified.\r
  91  * \r
  92  * <p>\r
  93  * Use {@link #SyncTypicalTemplatesToInstances(Resource[], MapSet)} to\r
  94  * synchronize all instances of specified templates. Use\r
  95  * {@link #syncSingleInstance(Resource)} to synchronize a single typical\r
  96  * instance with its master template.\r
  97  * \r
  98  * @author Tuukka Lehtonen\r
  99  * \r
 100  * @see ReadTypicalInfo\r
 101  * @see TypicalInfo\r
 102  * @see TypicalSynchronizationMetadata\r
 103  */\r
 104 public class SyncTypicalTemplatesToInstances extends WriteRequest {\r
 105 \r
 106     /**\r
 107      * A constant used as the second argument to\r
 108      * {@link #SyncTemplates(Resource[], MapSet)} for stating that all specified\r
 109      * templates should be fully synchronized to their instances.\r
 110      * \r
 111      * This is useful for forcing complete synchronization and unit testing. \r
 112      */\r
 113     public static final EmptyMapSet ALL = EmptyMapSet.INSTANCE;\r
 114 \r
 115     public static class EmptyMapSet extends MapSet<Resource, Resource> {\r
 116 \r
 117         public static final EmptyMapSet INSTANCE = new EmptyMapSet();\r
 118 \r
 119         public EmptyMapSet() {\r
 120             this.sets = Collections.emptyMap();\r
 121         }\r
 122 \r
 123         @Override\r
 124         protected Set<Resource> getOrCreateSet(Resource key) {\r
 125             throw new UnsupportedOperationException("immutable constant instance");\r
 126         }\r
 127 \r
 128     };\r
 129 \r
 130     protected static final boolean           DEBUG = false;\r
 131 \r
 132     // Input\r
 133 \r
 134     final private IProgressMonitor monitor;\r
 135     /**\r
 136      * Typical diagram rules to apply\r
 137      */\r
 138     protected Set<Resource>                                     selectedRules;\r
 139     \r
 140     /**\r
 141      * Typical diagram templates to synchronize with their instances.\r
 142      */\r
 143     protected Resource[]                     templates;\r
 144 \r
 145     /**\r
 146      * Typical diagram instances to synchronize with their templates.\r
 147      */\r
 148     protected Resource[]                     instances;\r
 149 \r
 150     /**\r
 151      * For each template diagram in {@link #templates}, shall contain a set of\r
 152      * elements that have changed and should be synchronized into the instance\r
 153      * diagrams. Provided as an argument by the client. Allows optimizing\r
 154      * real-time synchronization by not processing everything all the time.\r
 155      * \r
 156      * If the value is {@link #ALL}, all elements of the template shall be fully\r
 157      * synchronized.\r
 158      */\r
 159     protected MapSet<Resource, Resource>     changedElementsByDiagram;\r
 160 \r
 161     // Temporary data\r
 162 \r
 163     protected Layer0                         L0;\r
 164     protected StructuralResource2            STR;\r
 165     protected DiagramResource                DIA;\r
 166     protected ModelingResources              MOD;\r
 167 \r
 168     /**\r
 169      * Needed for using {@link Paster} in\r
 170      * {@link #addMissingElements(WriteGraph, TypicalInfo, Resource, Resource, Set)}\r
 171      */\r
 172     protected GraphSynchronizationContext    syncCtx;\r
 173 \r
 174     /**\r
 175      * For collecting commit metadata during the processing of this request.\r
 176      */\r
 177     protected TypicalSynchronizationMetadata metadata;\r
 178 \r
 179     /**\r
 180      * Necessary for using {@link CopyPasteStrategy} and {@link PasteOperation}\r
 181      * for now. Will be removed in the future once IDiagram is removed from\r
 182      * PasteOperation.\r
 183      */\r
 184     protected IDiagram                       temporaryDiagram;\r
 185 \r
 186     protected ConnectionUtil                 cu;\r
 187 \r
 188     /**\r
 189      * Maps source -> target connection route nodes, i.e. connectors and\r
 190      * interior route nodes (route lines). Inverse mapping of {@link #t2s}.\r
 191      */\r
 192     protected Map<Resource, Resource>        s2t;\r
 193 \r
 194     /**\r
 195      * Maps target -> source connection route nodes, i.e. connectors and\r
 196      * interior route nodes (route lines). Inverse mapping of {@link #s2t}.\r
 197      */\r
 198     protected Map<Resource, Resource>        t2s;\r
 199 \r
 200     /**\r
 201      * An auxiliary resource map for extracting the correspondences between\r
 202      * originals and copied resource when diagram contents are copied from\r
 203      * template to instance.\r
 204      */\r
 205     protected Map<Object, Object>            copyMap;\r
 206 \r
 207     final private Map<Resource, List<String>> messageLogs = new HashMap<Resource, List<String>>();\r
 208     \r
 209     public List<Resource> logs = new ArrayList<Resource>();\r
 210 \r
 211         private boolean writeLog;\r
 212 \r
 213     /**\r
 214      * @param templates typical diagram templates to completely synchronize with\r
 215      *        their instances\r
 216      */\r
 217     public SyncTypicalTemplatesToInstances(Set<Resource> selectedRules, Resource... templates) {\r
 218         this(selectedRules, templates, null, ALL, null);\r
 219     }\r
 220 \r
 221     /**\r
 222      * @param templates typical diagram templates to partially synchronize with\r
 223      *        their instances\r
 224      * @param changedElementsByDiagram see {@link #changedElementsByDiagram}\r
 225      */\r
 226     public SyncTypicalTemplatesToInstances(Set<Resource> selectedRules, Resource[] templates, MapSet<Resource, Resource> changedElementsByDiagram) {\r
 227         this(selectedRules, templates, null, changedElementsByDiagram, null);\r
 228     }\r
 229 \r
 230     /**\r
 231      * Return a write request that completely synchronizes the specified\r
 232      * instance diagram with its template.\r
 233      * \r
 234      * @param instance\r
 235      * @return\r
 236      */\r
 237     public static SyncTypicalTemplatesToInstances syncSingleInstance(Set<Resource> selectedRules, Resource instance) {\r
 238         return new SyncTypicalTemplatesToInstances(selectedRules, null, new Resource[] { instance }, ALL, null);\r
 239     }\r
 240 \r
 241     /**\r
 242      * @param templates typical diagram templates to synchronize with their instances\r
 243      * @param instances typical diagram instances to synchronize with their templates\r
 244      * @param changedElementsByDiagram see {@link #changedElementsByDiagram}\r
 245      */\r
 246     private SyncTypicalTemplatesToInstances(Set<Resource> selectedRules, Resource[] templates, Resource[] instances, MapSet<Resource, Resource> changedElementsByDiagram, IProgressMonitor monitor) {\r
 247         this.selectedRules = selectedRules;\r
 248         this.templates = templates;\r
 249         this.instances = instances;\r
 250         this.changedElementsByDiagram = changedElementsByDiagram;\r
 251         this.monitor = monitor;\r
 252     }\r
 253 \r
 254     public SyncTypicalTemplatesToInstances logging(boolean writeLog) {\r
 255         this.writeLog = writeLog;\r
 256         return this;\r
 257     }\r
 258 \r
 259     private Resource getDiagramNameResource(ReadGraph graph, Resource diagram) throws DatabaseException {\r
 260         Resource composite = graph.getPossibleObject(diagram, MOD.DiagramToComposite);\r
 261         if(composite != null) return composite;\r
 262         else return diagram;\r
 263     }\r
 264     \r
 265     private Resource getElementNameResource(ReadGraph graph, Resource element) throws DatabaseException {\r
 266         Resource corr = ModelingUtils.getPossibleElementCorrespondendence(graph, element);\r
 267         if(corr != null) return corr;\r
 268         else return element;\r
 269     }\r
 270     \r
 271     private List<String> getLog(ReadGraph graph, Resource diagram) throws DatabaseException {\r
 272         Resource indexRoot = graph.syncRequest(new PossibleIndexRoot(diagram));\r
 273         if(indexRoot == null) throw new DatabaseException("FATAL: Diagram is not under any index root.");\r
 274         List<String> log = messageLogs.get(indexRoot);\r
 275         if(log == null) {\r
 276                 log = new ArrayList<String>();\r
 277                 messageLogs.put(indexRoot, log);\r
 278         }\r
 279         return log;\r
 280     }\r
 281     \r
 282     private String elementName(ReadGraph graph, Resource element) throws DatabaseException {\r
 283         \r
 284         StringBuilder b = new StringBuilder();\r
 285         b.append(safeNameAndType(graph, element));\r
 286 \r
 287         int spaces = 60-b.length();\r
 288                 for(int i=0;i<spaces;i++) b.append(" ");\r
 289 \r
 290         Resource corr = ModelingUtils.getPossibleElementCorrespondendence(graph, element);\r
 291         if(corr != null) {\r
 292                 b.append(safeNameAndType(graph, corr));\r
 293         } else {\r
 294                 b.append("-");\r
 295         }\r
 296         \r
 297         return b.toString();\r
 298         \r
 299     }\r
 300 \r
 301     @Override\r
 302     public void perform(WriteGraph graph) throws DatabaseException {\r
 303         this.L0 = Layer0.getInstance(graph);\r
 304         this.STR = StructuralResource2.getInstance(graph);\r
 305         this.DIA = DiagramResource.getInstance(graph);\r
 306         this.MOD = ModelingResources.getInstance(graph);\r
 307 \r
 308         this.syncCtx = GraphSynchronizationContext.getWriteInstance( graph, new CollectingModificationQueue() );\r
 309         this.syncCtx.set(ModelingSynchronizationHints.MODELING_RESOURCE, ModelingResources.getInstance(graph));\r
 310 \r
 311         this.metadata = new TypicalSynchronizationMetadata();\r
 312         this.metadata.synchronizedTypicals = new ArrayList<Resource>();\r
 313 \r
 314         this.temporaryDiagram = Diagram.spawnNew(DiagramClass.DEFAULT);\r
 315         this.temporaryDiagram.setHint(SynchronizationHints.CONTEXT, syncCtx);\r
 316 \r
 317         this.cu = new ConnectionUtil(graph);\r
 318 \r
 319         if (templates != null) {\r
 320             // Look for typical template instances from the currently active models only.\r
 321             Collection<Resource> activeModels = graph.syncRequest(new ActiveModels(Simantics.getProjectResource()));\r
 322             if (!activeModels.isEmpty()) {\r
 323                 for (Resource template : templates) {\r
 324                     syncTemplate(graph, template, activeModels);\r
 325                 }\r
 326             }\r
 327         }\r
 328         if (instances != null) {\r
 329             for (Resource instance : instances) {\r
 330                 syncInstance(graph, instance);\r
 331             }\r
 332         }\r
 333 \r
 334         if (writeLog) {\r
 335             for(Map.Entry<Resource, List<String>> entry : messageLogs.entrySet()) {\r
 336 \r
 337                 Resource indexRoot = entry.getKey();\r
 338                 List<String> messageLog = entry.getValue();\r
 339 \r
 340                 Layer0 L0 = Layer0.getInstance(graph);\r
 341                 DocumentResource DOC = DocumentResource.getInstance(graph);\r
 342 \r
 343                 Collection<Resource> libs = graph.syncRequest(new ObjectsWithType(indexRoot, L0.ConsistsOf, DOC.DocumentLibrary));\r
 344                 if(libs.isEmpty()) continue;\r
 345 \r
 346                 List<NamedResource> nrs = new ArrayList<NamedResource>();\r
 347                 for(Resource lib : libs) nrs.add(new NamedResource(NameUtils.getSafeName(graph, lib), lib));\r
 348                 Collections.sort(nrs, AlphanumComparator.CASE_INSENSITIVE_COMPARATOR);\r
 349                 Resource library = nrs.iterator().next().getResource();\r
 350 \r
 351                 CommonDBUtils.selectClusterSet(graph, library);\r
 352 \r
 353                 String text = "--- Created: " + new Date().toString() + " ---\n";\r
 354                 text += EString.implode(messageLog);\r
 355 \r
 356                 Resource log = graph.newResource();\r
 357                 graph.claim(log, L0.InstanceOf, null, DOC.PlainTextDocument);\r
 358                 graph.claimLiteral(log, L0.HasName, L0.String, "Typical Sync " + new Date().toString());\r
 359                 graph.claim(library, L0.ConsistsOf, L0.PartOf, log);\r
 360                 graph.claimLiteral(log, DOC.PlainTextDocument_text, L0.String, text);\r
 361                 logs.add(log);\r
 362 \r
 363             }\r
 364         }\r
 365 \r
 366         if (!metadata.getTypicals().isEmpty()) {\r
 367             graph.addMetadata(metadata);\r
 368 \r
 369             // Add comment to change set.\r
 370             CommentMetadata cm = graph.getMetadata(CommentMetadata.class);\r
 371             graph.addMetadata( cm.add("Synchronized " + metadata.getTypicals().size() + " typical diagram instances (" + metadata.getTypicals() + ") with their templates.") );\r
 372         }\r
 373 \r
 374         temporaryDiagram = null;\r
 375         syncCtx = null;\r
 376     }\r
 377 \r
 378     private Collection<Resource> findInstances(ReadGraph graph, Resource ofType, Collection<Resource> indexRoots) throws DatabaseException {\r
 379         Instances index = graph.adapt(ofType, Instances.class);\r
 380         Set<Resource> instances = new HashSet<>();\r
 381         for (Resource indexRoot : indexRoots)\r
 382             instances.addAll( index.find(graph, indexRoot) );\r
 383         return instances;\r
 384     }\r
 385 \r
 386     private void syncTemplate(WriteGraph graph, Resource template, Collection<Resource> indexRoots) throws DatabaseException {\r
 387         Resource templateType = graph.getPossibleType(template, DIA.Diagram);\r
 388         if (templateType == null)\r
 389             return;\r
 390 \r
 391         Collection<Resource> instances = findInstances(graph, templateType, indexRoots);\r
 392         // Do not include the template itself as it is also an instance of templateType\r
 393         instances.remove(template);\r
 394         if (instances.isEmpty())\r
 395             return;\r
 396 \r
 397         Set<Resource> templateElements = new THashSet<Resource>( graph.syncRequest(\r
 398                 new ObjectsWithType(template, L0.ConsistsOf, DIA.Element) ) );\r
 399 \r
 400         try {\r
 401             for (Resource instance : instances) {\r
 402                 this.temporaryDiagram.setHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE, instance);\r
 403                 syncInstance(graph, template, instance, templateElements);\r
 404             }\r
 405         } catch (Exception e) {\r
 406                 Logger.defaultLogError(e);\r
 407                 e.printStackTrace();\r
 408         } finally {\r
 409             this.temporaryDiagram.removeHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE);\r
 410         }\r
 411     }\r
 412 \r
 413     private void syncInstance(WriteGraph graph, Resource instance) throws DatabaseException {\r
 414         Resource template = graph.getPossibleObject(instance, MOD.HasDiagramSource);\r
 415         if (template == null)\r
 416             return;\r
 417 \r
 418         Set<Resource> templateElements = new THashSet<Resource>( graph.syncRequest(\r
 419                 new ObjectsWithType(template, L0.ConsistsOf, DIA.Element) ) );\r
 420 \r
 421         try {\r
 422             this.temporaryDiagram.setHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE, instance);\r
 423             syncInstance(graph, template, instance, templateElements);\r
 424         } finally {\r
 425             this.temporaryDiagram.removeHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE);\r
 426         }\r
 427     }\r
 428     \r
 429     private Resource findInstanceCounterpart(ReadGraph graph, Resource instanceDiagram, Resource templateElement) throws DatabaseException {\r
 430         Map<String,Resource> children = graph.syncRequest(new UnescapedChildMapOfResource(instanceDiagram));\r
 431         for(Resource child : children.values()) {\r
 432                 if(graph.hasStatement(child, MOD.HasElementSource, templateElement)) return child;\r
 433         }\r
 434         return null;\r
 435     }\r
 436     \r
 437     private boolean isSynchronizedConnector(ReadGraph graph, Resource templateConnection, Resource instanceConnector) throws DatabaseException {\r
 438         DiagramResource DIA = DiagramResource.getInstance(graph);\r
 439         Resource instanceConnection = graph.getPossibleObject(instanceConnector, DIA.IsConnectorOf);\r
 440         return graph.hasStatement(instanceConnection, MOD.HasElementSource, templateConnection);\r
 441     }\r
 442 \r
 443     /**\r
 444      * Perform the following synchronization steps for the instance diagram:\r
 445      * <ol>\r
 446      * <li>remove such templatized elements from the instance diagram whose\r
 447      * template counterpart no longer exists</li>\r
 448      * <li>add elements to the instance diagram that are only in the template</li>\r
 449      * <li>synchronize elements of the instance diagram that have been deemed\r
 450      * changed</li>\r
 451      * </ol>\r
 452      * \r
 453      * @param graph database write access\r
 454      * @param template the synchronization source diagram\r
 455      * @param instance the synchronization target diagram\r
 456      * @param currentTemplateElements the set of all elements currently in the\r
 457      *        template diagram\r
 458      * @throws DatabaseException if anything goes wrong\r
 459      */\r
 460     private void syncInstance(WriteGraph graph, Resource template, Resource instance, Set<Resource> currentTemplateElements) throws DatabaseException {\r
 461 \r
 462         List<String> messageLog = getLog(graph, instance);\r
 463         \r
 464         messageLog.add("Synchronization of changed typical template: " + SyncTypicalTemplatesToInstances.safeNameAndType(graph, getDiagramNameResource(graph, template)));\r
 465         messageLog.add("----\n\ttypical instance: " + safeNameAndType(graph, getDiagramNameResource(graph, instance)));\r
 466 \r
 467         CommonDBUtils.selectClusterSet(graph, instance);\r
 468         \r
 469         // Form instance element <-> template element bijection\r
 470         TypicalInfoBean typicalInfoBean = graph.syncRequest(\r
 471                 new ReadTypicalInfo(instance),\r
 472                 TransientCacheListener.<TypicalInfoBean> instance());\r
 473         // Must be able to modify the typicalInfo structure,\r
 474         // therefore clone the query result.\r
 475         typicalInfoBean = (TypicalInfoBean) typicalInfoBean.clone();\r
 476         typicalInfoBean.templateElements = currentTemplateElements;\r
 477         typicalInfoBean.auxiliary = new HashMap<Object, Object>(1);\r
 478 \r
 479         TypicalInfo info = new TypicalInfo();\r
 480         info.monitor = monitor;\r
 481         info.messageLog = messageLog;\r
 482         info.bean = typicalInfoBean;\r
 483         \r
 484         // Resolve naming function for this typical instance.\r
 485         Resource compositeInstance = graph.getPossibleObject(instance, MOD.DiagramToComposite);\r
 486         if (compositeInstance != null) {\r
 487                 Function4<ReadGraph, Resource, Resource, String, String> namingFunction = TypicalUtil.getTypicalNamingFunction(graph, compositeInstance);\r
 488             if (namingFunction != null)\r
 489                 typicalInfoBean.auxiliary.put(AuxKeys.KEY_TYPICAL_NAMING_FUNCTION, namingFunction);\r
 490         }\r
 491 \r
 492         int dSizeAbs = Math.abs(typicalInfoBean.instanceElements.size() - currentTemplateElements.size());\r
 493 \r
 494         if(DEBUG)\r
 495                 System.out.println("typical <-> template mapping: " + typicalInfoBean.instanceToTemplate);\r
 496 \r
 497         // Find elements to be removed from instance by looking for all\r
 498         // instance elements that do not have a MOD.HasElementSource\r
 499         // relation but have a MOD.IsTemplatized tag.\r
 500         Set<Resource> instanceElementsRemovedFromTemplate = findInstanceElementsRemovedFromTemplate(\r
 501                 graph, info, new THashSet<Resource>(dSizeAbs));\r
 502 \r
 503         // Find elements in template that do not yet exist in the instance\r
 504         Set<Resource> templateElementsAddedToTemplate = findTemplateElementsMissingFromInstance(\r
 505                 graph, currentTemplateElements, info,\r
 506                 new THashSet<Resource>(dSizeAbs));\r
 507 \r
 508         Set<Resource> changedTemplateElements = changedElementsByDiagram.removeValues(template);\r
 509 \r
 510         if(DEBUG)\r
 511                 System.out.println("ADDED: " + templateElementsAddedToTemplate.size() + ", REMOVED: " + instanceElementsRemovedFromTemplate.size() + ", CHANGED: " + changedTemplateElements.size());\r
 512         \r
 513         // Validate\r
 514         for(Resource templateElement : graph.getObjects(template, L0.ConsistsOf)) {\r
 515                 if(graph.isInstanceOf(templateElement, DIA.RouteGraphConnection)) {\r
 516                         for(Resource connector : graph.getObjects(templateElement, DIA.HasConnector)) {\r
 517                                 for(Statement elementStm : graph.getStatements(connector, STR.Connects)) {\r
 518                                         Resource otherElement = elementStm.getObject(); \r
 519                                         if(!otherElement.equals(templateElement)) {\r
 520                                 Resource counterPartElement = findInstanceCounterpart(graph, instance, otherElement);\r
 521                                 if(counterPartElement != null) {\r
 522                                                 Resource diagramConnectionPoint = graph.getInverse(elementStm.getPredicate());\r
 523                                                 Resource connectionPoint = graph.getPossibleObject(diagramConnectionPoint, MOD.DiagramConnectionRelationToConnectionRelation);\r
 524                                                 if(connectionPoint != null) {\r
 525                                                         Statement stm = graph.getPossibleStatement(counterPartElement, diagramConnectionPoint);\r
 526                                         if(stm != null) {\r
 527                                                 if(graph.isInstanceOf(connectionPoint, L0.FunctionalRelation)) {\r
 528                                                         if(!isSynchronizedConnector(graph, templateElement, stm.getObject())) {\r
 529                                                                 messageLog.add("\t\tABORTED: tried to connect to an already connected terminal " + NameUtils.getSafeName(graph, counterPartElement) + " " + NameUtils.getSafeName(graph, connectionPoint));\r
 530                                                                 return;\r
 531                                                         }\r
 532                                                 }\r
 533                                                 }\r
 534                                                 }\r
 535                                 }\r
 536                                         }\r
 537                                 }\r
 538                         }\r
 539                 }\r
 540         }\r
 541         \r
 542         // Perform changes\r
 543         boolean changed = false;\r
 544         changed |= removeElements(graph, info, instanceElementsRemovedFromTemplate);\r
 545         changed |= addMissingElements(graph, info, template, instance, templateElementsAddedToTemplate);\r
 546         changed |= synchronizeChangedElements(graph, info, template, instance, changedTemplateElements, templateElementsAddedToTemplate, changedElementsByDiagram == ALL);\r
 547 \r
 548         if (changed)\r
 549             metadata.addTypical(instance);\r
 550     }\r
 551 \r
 552     /**\r
 553      * Add elements from template that do not yet exist in the instance.\r
 554      * \r
 555      * @param graph\r
 556      * @param template\r
 557      * @param instance\r
 558      * @param elementsAddedToTemplate\r
 559      * @return <code>true</code> if changes were made to the instance\r
 560      * @throws DatabaseException\r
 561      */\r
 562     private boolean addMissingElements(WriteGraph graph, TypicalInfo typicalInfo, Resource template,\r
 563             Resource instance, Set<Resource> elementsAddedToTemplate)\r
 564                     throws DatabaseException {\r
 565         if (elementsAddedToTemplate.isEmpty())\r
 566             return false;\r
 567 \r
 568         CopyAdvisor copyAdvisor = graph.syncRequest(new Adapter<CopyAdvisor>(instance, CopyAdvisor.class));\r
 569         this.temporaryDiagram.setHint(SynchronizationHints.COPY_ADVISOR, copyAdvisor);\r
 570 \r
 571         ElementObjectAssortment assortment = new ElementObjectAssortment(graph, elementsAddedToTemplate);\r
 572         if (copyMap == null)\r
 573             copyMap = new THashMap<Object, Object>();\r
 574         else\r
 575             copyMap.clear();\r
 576 \r
 577         if (DEBUG)\r
 578             System.out.println("ADD MISSING ELEMENTS: " + assortment);\r
 579 \r
 580         // initialCopyMap argument is needed for copying just connections\r
 581         // when their end-points are not copied at the same time.\r
 582 \r
 583         PasteOperation pasteOp = new PasteOperation(Commands.COPY,\r
 584                 (ICanvasContext) null, template, instance, temporaryDiagram,\r
 585                 assortment, false, new Point2D.Double(0, 0),\r
 586                 typicalInfo.bean.templateToInstance, copyMap)\r
 587         .options(PasteOperation.ForceCopyReferences.INSTANCE);\r
 588 \r
 589         new Paster(graph.getSession(), pasteOp).perform(graph);\r
 590 \r
 591         boolean changed = false;\r
 592 \r
 593         if(!elementsAddedToTemplate.isEmpty())\r
 594                 typicalInfo.messageLog.add("\tadded elements");\r
 595         \r
 596         for (Resource addedElement : elementsAddedToTemplate) {\r
 597             Resource copyElement = (Resource) copyMap.get(addedElement);\r
 598             if (copyElement != null) {\r
 599                 graph.claim(copyElement, MOD.IsTemplatized, MOD.IsTemplatized, copyElement);\r
 600                 graph.claim(copyElement, MOD.HasElementSource, MOD.ElementHasInstance, addedElement);\r
 601 \r
 602                 typicalInfo.bean.instanceElements.add(copyElement);\r
 603                 typicalInfo.bean.instanceToTemplate.put(copyElement, addedElement);\r
 604                 typicalInfo.bean.templateToInstance.put(addedElement, copyElement);\r
 605 \r
 606                 typicalInfo.messageLog.add("\t\t" + safeNameAndType(graph, copyElement));\r
 607 \r
 608                 changed = true;\r
 609             }\r
 610         }\r
 611 \r
 612         ModelingResources MOD = ModelingResources.getInstance(graph);\r
 613         Resource instanceComposite = graph.getPossibleObject(instance, MOD.DiagramToComposite);\r
 614         List<Resource> instanceComponents = new ArrayList<Resource>(elementsAddedToTemplate.size());\r
 615 \r
 616         // Post-process added elements after typicalInfo has been updated and\r
 617         // template mapping statements are in place.\r
 618         for (Resource addedElement : elementsAddedToTemplate) {\r
 619             Resource copyElement = (Resource) copyMap.get(addedElement);\r
 620             if (copyElement != null) {\r
 621                 postProcessAddedElement(graph, addedElement, copyElement, typicalInfo);\r
 622 \r
 623                 if (instanceComponents != null) {\r
 624                     // Gather all instance typical components for applying naming\r
 625                     // strategy on them.\r
 626                     Resource component = graph.getPossibleObject(copyElement, MOD.ElementToComponent);\r
 627                     if (component != null)\r
 628                         instanceComponents.add(component);\r
 629                 }\r
 630             }\r
 631         }\r
 632 \r
 633         if (instanceComposite != null)\r
 634             TypicalUtil.applySelectedModuleNames(graph, instanceComposite, instanceComponents);\r
 635 \r
 636         return changed;\r
 637     }\r
 638 \r
 639     private void postProcessAddedElement(WriteGraph graph,\r
 640             Resource addedTemplateElement, Resource addedInstanceElement,\r
 641             TypicalInfo typicalInfo) throws DatabaseException {\r
 642         if (graph.isInstanceOf(addedInstanceElement, DIA.Monitor)) {\r
 643             postProcessAddedMonitor(graph, addedTemplateElement, addedInstanceElement, typicalInfo);\r
 644         }\r
 645     }\r
 646 \r
 647     private void postProcessAddedMonitor(WriteGraph graph,\r
 648             Resource addedTemplateMonitor, Resource addedInstanceMonitor,\r
 649             TypicalInfo typicalInfo) throws DatabaseException {\r
 650         Resource monitor = addedInstanceMonitor;\r
 651         Resource monitoredComponent = graph.getPossibleObject(monitor, DIA.HasMonitorComponent);\r
 652         if (monitoredComponent != null) {\r
 653             Resource monitoredTemplateElement = graph.getPossibleObject(monitoredComponent, MOD.ComponentToElement);\r
 654             if (monitoredTemplateElement != null) {\r
 655                 Resource monitoredInstanceElement = typicalInfo.bean.templateToInstance.get(monitoredTemplateElement);\r
 656                 if (monitoredInstanceElement != null) {\r
 657                     Resource monitoredInstanceComponent = graph.getPossibleObject(monitoredInstanceElement, MOD.ElementToComponent);\r
 658                     if (monitoredInstanceComponent != null) {\r
 659                         // Ok, the monitor refers to a component within the\r
 660                         // template composite. Change it to refer to the\r
 661                         // instance composite.\r
 662                         graph.deny(monitor, DIA.HasMonitorComponent);\r
 663                         graph.claim(monitor, DIA.HasMonitorComponent, monitoredInstanceComponent);\r
 664                     }\r
 665                 }\r
 666             }\r
 667         }\r
 668     }\r
 669 \r
 670     private boolean removeElements(WriteGraph graph, TypicalInfo typicalInfo, Set<Resource> elementsRemovedFromTemplate) throws DatabaseException {\r
 671         if (elementsRemovedFromTemplate.isEmpty())\r
 672             return false;\r
 673 \r
 674         // Remove mapped elements from instance that are removed from the template.\r
 675         boolean changed = false;\r
 676         \r
 677         if(!elementsRemovedFromTemplate.isEmpty())\r
 678                 typicalInfo.messageLog.add("\tremoved elements");\r
 679         \r
 680         for (Resource removedElement : elementsRemovedFromTemplate) {\r
 681                 typicalInfo.messageLog.add("\t\t" + safeNameAndType(graph, removedElement));\r
 682 \r
 683             RemoverUtil.remove(graph, removedElement);\r
 684 \r
 685             typicalInfo.bean.instanceElements.remove(removedElement);\r
 686             Resource template = typicalInfo.bean.instanceToTemplate.remove(removedElement);\r
 687             if (template != null)\r
 688                 typicalInfo.bean.templateToInstance.remove(template);\r
 689 \r
 690             changed = true;\r
 691         }\r
 692         return changed;\r
 693     }\r
 694 \r
 695     private Set<Resource> findTemplateElementsMissingFromInstance(\r
 696             WriteGraph graph, Collection<Resource> currentTemplateElements,\r
 697             TypicalInfo typicalInfo, THashSet<Resource> result)\r
 698                   throws DatabaseException {\r
 699         for (Resource templateElement : currentTemplateElements) {\r
 700             Resource instanceElement = typicalInfo.bean.templateToInstance.get(templateElement);\r
 701             if (instanceElement == null) {\r
 702                 if(DEBUG)\r
 703                         System.out.println("No instance correspondence for template element " + NameUtils.getSafeName(graph, templateElement, true) + " => add");\r
 704                 result.add(templateElement);\r
 705             }\r
 706         }\r
 707         return result;\r
 708     }\r
 709 \r
 710     public Set<Resource> findInstanceElementsRemovedFromTemplate(\r
 711             ReadGraph graph, TypicalInfo typicalInfo,\r
 712             THashSet<Resource> result) throws DatabaseException {\r
 713         for (Resource instanceElement : typicalInfo.bean.instanceElements) {\r
 714             if (!typicalInfo.bean.instanceToTemplate.containsKey(instanceElement)) {\r
 715                 if (typicalInfo.bean.isTemplatized.contains(instanceElement)) {\r
 716                         if(DEBUG)\r
 717                                 System.out.println("Templatized typical instance element " + NameUtils.getSafeName(graph, instanceElement, true) + " has no correspondence in template => remove");\r
 718                     result.add(instanceElement);\r
 719                 }\r
 720             }\r
 721         }\r
 722         return result;\r
 723     }\r
 724 \r
 725     /**\r
 726      * Synchronize basic visual aspects of changed elements. For all elements,\r
 727      * transform and label are synchronized. Otherwise synchronization is\r
 728      * type-specific for connections, flags, monitors and svg elements.\r
 729      * \r
 730      * @param graph\r
 731      * @param typicalInfo\r
 732      * @param template\r
 733      * @param instance\r
 734      * @param changedTemplateElements\r
 735      * @param addedElements\r
 736      *            elements that have been added and thus need not be\r
 737      *            synchronized\r
 738      * @param synchronizeAllElements\r
 739      * @return\r
 740      * @throws DatabaseException\r
 741      */\r
 742     private boolean synchronizeChangedElements(WriteGraph graph,\r
 743             TypicalInfo typicalInfo, Resource template, Resource instance,\r
 744             Collection<Resource> changedTemplateElements,\r
 745             Set<Resource> addedElements,\r
 746             boolean synchronizeAllElements) throws DatabaseException {\r
 747 \r
 748         if (synchronizeAllElements) {\r
 749             // For unit testing purposes.\r
 750             changedTemplateElements = graph.syncRequest(new ObjectsWithType(template, L0.ConsistsOf, DIA.Element));\r
 751         }\r
 752 \r
 753         if (changedTemplateElements.isEmpty())\r
 754             return false;\r
 755 \r
 756         boolean changed = false;\r
 757 \r
 758         typicalInfo.messageLog.add("\telement change analysis");\r
 759         int analysisLogPosition = typicalInfo.messageLog.size();\r
 760 \r
 761         for (Resource changedTemplateElement : changedTemplateElements) {\r
 762             // Skip synchronization of elements that were just added and are\r
 763             // thus already synchronized.\r
 764             if (addedElements.contains(changedTemplateElement))\r
 765                 continue;\r
 766 \r
 767             Resource instanceElement = typicalInfo.bean.templateToInstance.get(changedTemplateElement);\r
 768             if (instanceElement == null) {\r
 769                 // There's an earlier problem in the sync process if this happens.\r
 770                 typicalInfo.messageLog.add("SKIPPING SYNC OF CHANGED TEMPLATE ELEMENT DUE TO MISSING INSTANCE: " + safeNameAndType(graph, getElementNameResource(graph, changedTemplateElement)));\r
 771                 continue;\r
 772             }\r
 773             \r
 774             typicalInfo.messageLog.add("\t\t" + elementName(graph, changedTemplateElement));\r
 775             int currentLogSize = typicalInfo.messageLog.size();\r
 776 \r
 777             changed |= InstanceOfRule.INSTANCE.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 778             changed |= NameRule.INSTANCE.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 779             changed |= TransformRule.INSTANCE.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 780             changed |= LabelRule.INSTANCE.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 781 \r
 782             Collection<Resource> types = graph.getTypes(changedTemplateElement);\r
 783             if (types.contains(DIA.RouteGraphConnection)) {\r
 784                 changed |= synchronizeConnection(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 785             } else if (types.contains(DIA.Flag)) {\r
 786                 changed |= FlagRule.INSTANCE.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 787             } else if (types.contains(DIA.Monitor)) {\r
 788                 changed |= MonitorRule.INSTANCE.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 789             } else if (types.contains(DIA.SVGElement)) {\r
 790                 changed |= SVGElementRule.INSTANCE.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 791             }\r
 792 \r
 793             changed |= ProfileMonitorRule.INSTANCE.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 794             \r
 795             for (Resource rule : graph.getObjects(changedTemplateElement, MOD.HasTypicalSynchronizationRule)) {\r
 796                 if(selectedRules != null && !selectedRules.contains(rule)) continue;\r
 797                 ITypicalSynchronizationRule r = graph.getPossibleAdapter(rule, ITypicalSynchronizationRule.class);\r
 798                 if (r != null)\r
 799                     changed |= r.synchronize(graph, changedTemplateElement, instanceElement, typicalInfo);\r
 800             }\r
 801             \r
 802             // Show element only if something has happened\r
 803             if(currentLogSize == typicalInfo.messageLog.size())\r
 804                 typicalInfo.messageLog.remove(typicalInfo.messageLog.size()-1);\r
 805             \r
 806         }\r
 807 \r
 808         if (s2t != null)\r
 809             s2t.clear();\r
 810         if (t2s != null)\r
 811             t2s.clear();\r
 812 \r
 813         // Show analysis header only if something has happened\r
 814         if(analysisLogPosition == typicalInfo.messageLog.size())\r
 815                 typicalInfo.messageLog.remove(typicalInfo.messageLog.size()-1);\r
 816 \r
 817         return changed;\r
 818     }\r
 819 \r
 820     /**\r
 821      * Synchronizes two route graph connection topologies if and only if the\r
 822      * destination connection is not attached to any node elements besides\r
 823      * the ones that exist in the source. This means that connections that\r
 824      * have instance-specific connections to non-template nodes are ignored\r
 825      * here.\r
 826      * \r
 827      * @param graph\r
 828      * @param sourceConnection\r
 829      * @param targetConnection\r
 830      * @param typicalInfo\r
 831      * @return <code>true</code> if changes were made \r
 832      * @throws DatabaseException\r
 833      */\r
 834     private boolean synchronizeConnection(WriteGraph graph, Resource sourceConnection, Resource targetConnection, TypicalInfo typicalInfo)\r
 835             throws DatabaseException {\r
 836 \r
 837         if(DEBUG)\r
 838                 System.out.println("connection " + NameUtils.getSafeName(graph, sourceConnection, true) + " to target connection " + NameUtils.getSafeName(graph, targetConnection, true));\r
 839 \r
 840         boolean changed = false;\r
 841 \r
 842         // Initialize utilities and data maps\r
 843         s2t = newOrClear(s2t);\r
 844         t2s = newOrClear(t2s);\r
 845 \r
 846         if (cu == null)\r
 847             cu = new ConnectionUtil(graph);\r
 848 \r
 849         // 0.1. find mappings between source and target connection connectors\r
 850         Collection<Resource> targetConnectors = graph.getObjects(targetConnection, DIA.HasConnector);\r
 851         for (Resource targetConnector : targetConnectors) {\r
 852             Statement toNode = cu.getConnectedComponentStatement(targetConnection, targetConnector);\r
 853             if (toNode == null) {\r
 854                 // Corrupted target connection!\r
 855                 ErrorLogger.defaultLogError("Encountered corrupted typical template connection " + NameUtils.getSafeName(graph, targetConnection, true) + " with a stray DIA.Connector instance " + NameUtils.getSafeName(graph, targetConnector, true), new Exception("trace"));\r
 856                 return false;\r
 857             }\r
 858 \r
 859             // Check that the target connections does not connect to\r
 860             // non-templatized elements before syncing.\r
 861             if (!graph.hasStatement(toNode.getObject(), MOD.IsTemplatized))\r
 862                 return false;\r
 863 \r
 864             //Resource templateNode = typicalInfo.instanceToTemplate.get(toNode.getObject());\r
 865             Resource templateNode = graph.getPossibleObject(toNode.getObject(), MOD.HasElementSource);\r
 866             if (templateNode != null) {\r
 867                 Resource isConnectedTo = graph.getPossibleInverse(toNode.getPredicate());\r
 868                 if (isConnectedTo != null) {\r
 869                     Resource templateConnector = graph.getPossibleObject(templateNode, isConnectedTo);\r
 870                     if (templateConnector != null) {\r
 871                         Resource connectionOfTemplateConnector = ConnectionUtil.tryGetConnection(graph, templateConnector);\r
 872                         if (sourceConnection.equals(connectionOfTemplateConnector)) {\r
 873                             s2t.put(templateConnector, targetConnector);\r
 874                             t2s.put(targetConnector, templateConnector);\r
 875 \r
 876                             if (DEBUG)\r
 877                                 System.out.println("Mapping connector "\r
 878                                         + NameUtils.getSafeName(graph, templateConnector, true)\r
 879                                         + " to " + NameUtils.getSafeName(graph, targetConnector, true));\r
 880                         }\r
 881                     }\r
 882                 }\r
 883             }\r
 884         }\r
 885 \r
 886         // 0.2. find mapping between source and target route lines\r
 887         Collection<Resource> sourceInteriorRouteNodes = graph.getObjects(sourceConnection, DIA.HasInteriorRouteNode);\r
 888         Collection<Resource> targetInteriorRouteNodes = graph.getObjects(targetConnection, DIA.HasInteriorRouteNode);\r
 889         Map<Resource, Paster.RouteLine> sourceToRouteLine = new THashMap<Resource, Paster.RouteLine>();\r
 890         Map<Resource, Paster.RouteLine> targetToRouteLine = new THashMap<Resource, Paster.RouteLine>();\r
 891 \r
 892         for (Resource source : sourceInteriorRouteNodes)\r
 893             sourceToRouteLine.put(source, Paster.readRouteLine(graph, source));\r
 894         for (Resource target : targetInteriorRouteNodes)\r
 895             targetToRouteLine.put(target, Paster.readRouteLine(graph, target));\r
 896 \r
 897         nextSourceLine:\r
 898             for (Iterator<Map.Entry<Resource, Paster.RouteLine>> sourceIt = sourceToRouteLine.entrySet().iterator(); !targetToRouteLine.isEmpty() && sourceIt.hasNext();) {\r
 899                 Map.Entry<Resource, Paster.RouteLine> sourceEntry = sourceIt.next();\r
 900                 Paster.RouteLine sourceLine = sourceEntry.getValue();\r
 901                 for (Iterator<Map.Entry<Resource, Paster.RouteLine>> targetIt = targetToRouteLine.entrySet().iterator(); targetIt.hasNext();) {\r
 902                     Map.Entry<Resource, Paster.RouteLine> targetEntry = targetIt.next();\r
 903                     if (sourceLine.equals(targetEntry.getValue())) {\r
 904                         s2t.put(sourceEntry.getKey(), targetEntry.getKey());\r
 905                         t2s.put(targetEntry.getKey(), sourceEntry.getKey());\r
 906                         sourceIt.remove();\r
 907                         targetIt.remove();\r
 908 \r
 909                         if (DEBUG)\r
 910                             System.out.println("Mapping routeline "\r
 911                                     + NameUtils.getSafeName(graph, sourceEntry.getKey(), true)\r
 912                                     + " - " + sourceEntry.getValue()\r
 913                                     + " to " + NameUtils.getSafeName(graph, targetEntry.getKey(), true)\r
 914                                     + " - " + targetEntry.getValue());\r
 915 \r
 916                         continue nextSourceLine;\r
 917                     }\r
 918                 }\r
 919             }\r
 920 \r
 921         if (DEBUG) {\r
 922             System.out.println("Take 1: Source to target route nodes map : " + s2t);\r
 923             System.out.println("Take 1: Target to source route nodes map : " + t2s);\r
 924         }\r
 925 \r
 926         // 1.1 remove excess connectors\r
 927         for (Resource targetConnector : targetConnectors) {\r
 928             if (!t2s.containsKey(targetConnector)) {\r
 929                 typicalInfo.messageLog.add("\t\t\tremove excess connector from target connection: " + NameUtils.getSafeName(graph, targetConnector));\r
 930                 cu.removeConnectionPart(targetConnector);\r
 931                 changed = true;\r
 932             }\r
 933         }\r
 934 \r
 935         // 1.2 add missing connectors to target\r
 936         Collection<Resource> sourceConnectors = graph.getObjects(sourceConnection, DIA.HasConnector);\r
 937         for (Resource sourceConnector : sourceConnectors) {\r
 938             if (!s2t.containsKey(sourceConnector)) {\r
 939                 Statement sourceIsConnectorOf = graph.getSingleStatement(sourceConnector, DIA.IsConnectorOf);\r
 940                 Statement connects = cu.getConnectedComponentStatement(sourceConnection, sourceConnector);\r
 941                 if (connects == null) {\r
 942                     // TODO: serious error!\r
 943                     throw new DatabaseException("ERROR: connector is astray, i.e. not connected to a node element: " + safeNameAndType(graph, sourceConnector));\r
 944                 }\r
 945                 Resource connectsInstanceElement = typicalInfo.bean.templateToInstance.get(connects.getObject());\r
 946                 if (connectsInstanceElement == null) {\r
 947                     // TODO: serious error!\r
 948                     throw new DatabaseException("ERROR: could not find instance element to which template element " + safeNameAndType(graph, connects.getObject()) + " is connected to");\r
 949                 }\r
 950                 Resource hasConnector = graph.getInverse(sourceIsConnectorOf.getPredicate());\r
 951 \r
 952                 Resource newTargetConnector = cu.newConnector(targetConnection, hasConnector);\r
 953                 graph.claim(newTargetConnector, connects.getPredicate(), connectsInstanceElement);\r
 954                 changed = true;\r
 955 \r
 956                 s2t.put(sourceConnector, newTargetConnector);\r
 957                 t2s.put(newTargetConnector, sourceConnector);\r
 958 \r
 959                 typicalInfo.messageLog.add("\t\t\tadd new connector to target connection: " + NameUtils.getSafeName(graph, newTargetConnector) + " to map to source connector " + NameUtils.getSafeName(graph, sourceConnector));\r
 960             }\r
 961         }\r
 962 \r
 963         // 2. sync route lines and their connectivity:\r
 964         // 2.1. assign correspondences in target for each source route line\r
 965         //      by reusing excess routelines in target and by creating new\r
 966         //      route lines.\r
 967 \r
 968         Resource[] targetRouteLines = targetToRouteLine.keySet().toArray(Resource.NONE);\r
 969         int targetRouteLine = targetRouteLines.length - 1;\r
 970 \r
 971         for (Iterator<Map.Entry<Resource, Paster.RouteLine>> sourceIt = sourceToRouteLine.entrySet().iterator(); sourceIt.hasNext();) {\r
 972             Map.Entry<Resource, Paster.RouteLine> sourceEntry = sourceIt.next();\r
 973             Resource source = sourceEntry.getKey();\r
 974             Paster.RouteLine sourceLine = sourceEntry.getValue();\r
 975 \r
 976             typicalInfo.messageLog.add("\t\t\tassign an instance-side routeline complement for " + NameUtils.getSafeName(graph, source, true) + " - " + sourceLine);\r
 977 \r
 978             // Assign target route line for source\r
 979             Resource target = null;\r
 980             if (targetRouteLine < 0) {\r
 981                 // by creating new route lines\r
 982                 target = cu.newRouteLine(targetConnection, sourceLine.getPosition(), sourceLine.isHorizontal());\r
 983                 typicalInfo.messageLog.add("\t\t\tcreate new route line " + NameUtils.getSafeName(graph, target));\r
 984                 changed = true;\r
 985             } else {\r
 986                 // by reusing existing route line\r
 987                 target = targetRouteLines[targetRouteLine--];\r
 988                 copyRouteLine(graph, source, target);\r
 989                 cu.disconnectFromAllRouteNodes(target);\r
 990                 typicalInfo.messageLog.add("\t\t\treused existing route line " + NameUtils.getSafeName(graph, target));\r
 991                 changed = true;\r
 992             }\r
 993             s2t.put(source, target);\r
 994             t2s.put(target, source);\r
 995 \r
 996             typicalInfo.messageLog.add("\t\t\tmapped source route line " + NameUtils.getSafeName(graph, source) + " to target route line " + NameUtils.getSafeName(graph, target));\r
 997         }\r
 998 \r
 999         if (targetRouteLine >= 0) {\r
1000                 typicalInfo.messageLog.add("\t\t\tremove excess route lines (" + (targetRouteLine + 1) + ") from target connection");\r
1001             for (; targetRouteLine >= 0; targetRouteLine--) {\r
1002                 typicalInfo.messageLog.add("\t\t\t\tremove excess route line: " + NameUtils.getSafeName(graph, targetRouteLines[targetRouteLine], true));\r
1003                 cu.removeConnectionPart(targetRouteLines[targetRouteLine]);\r
1004             }\r
1005         }\r
1006 \r
1007         if (DEBUG) {\r
1008             System.out.println("Take 2: Source to target route nodes map : " + s2t);\r
1009             System.out.println("Take 2: Target to source route nodes map : " + t2s);\r
1010         }\r
1011 \r
1012         // 2.2. Synchronize target connection topology (DIA.AreConnected)\r
1013         changed |= connectRouteNodes(graph, typicalInfo, sourceInteriorRouteNodes);\r
1014         changed |= connectRouteNodes(graph, typicalInfo, sourceConnectors);\r
1015 \r
1016         // 3. remove excess routelines & connectors from target connection\r
1017         changed |= cu.removeExtraInteriorRouteNodes(targetConnection) > 0;\r
1018         changed |= cu.removeUnusedConnectors(targetConnection) > 0;\r
1019 \r
1020         return changed;\r
1021     }\r
1022 \r
1023     private boolean connectRouteNodes(WriteGraph graph, TypicalInfo typicalInfo, Collection<Resource> sourceRouteNodes) throws DatabaseException {\r
1024         boolean changed = false;\r
1025         for (Resource src : sourceRouteNodes) {\r
1026             Resource dst = s2t.get(src);\r
1027             if (dst == null) {\r
1028                 throw new DatabaseException("TARGET ROUTE NODE == NULL FOR SRC: " + NameUtils.getSafeName(graph, src));\r
1029             }\r
1030 \r
1031             Collection<Resource> connectedToSrcs = graph.getObjects(src, DIA.AreConnected);\r
1032             Collection<Resource> connectedToDsts = graph.getObjects(dst, DIA.AreConnected);\r
1033 \r
1034             // Remove excess statements\r
1035             for (Resource connectedToDst : connectedToDsts) {\r
1036                 Resource connectedToSrc = t2s.get(connectedToDst);\r
1037                 if (connectedToSrc == null) {\r
1038                     throw new DatabaseException("CONNECTED TO SRC == NULL FOR DST: " + NameUtils.getSafeName(graph, connectedToDst));\r
1039                 }\r
1040                 if (connectedToSrc == null || !graph.hasStatement(src, DIA.AreConnected, connectedToSrc)) {\r
1041                     graph.deny(dst, DIA.AreConnected, DIA.AreConnected, connectedToDst);\r
1042                     changed = true;\r
1043                     typicalInfo.messageLog.add("\t\t\tdisconnected route nodes (" + NameUtils.getSafeName(graph, dst) + ", " + NameUtils.getSafeName(graph, connectedToDst) + ")");\r
1044                 }\r
1045             }\r
1046 \r
1047             // Add necessary statements\r
1048             for (Resource connectedToSrc : connectedToSrcs) {\r
1049                 Resource connectedToDst = s2t.get(connectedToSrc);\r
1050                 if (connectedToDst == null) {\r
1051                     throw new DatabaseException("CONNECTED TO DST == NULL FOR SRC: " + NameUtils.getSafeName(graph, connectedToSrc));\r
1052                 }\r
1053                 if (!graph.hasStatement(dst, DIA.AreConnected, connectedToDst)) {\r
1054                     graph.claim(dst, DIA.AreConnected, DIA.AreConnected, connectedToDst);\r
1055                     changed = true;\r
1056                     typicalInfo.messageLog.add("\t\t\tconnected route nodes (" + NameUtils.getSafeName(graph, dst) + ", " + NameUtils.getSafeName(graph, connectedToDst) + ")");\r
1057                 }\r
1058             }\r
1059         }\r
1060         return changed;\r
1061     }\r
1062 \r
1063     private void copyRouteLine(WriteGraph graph, Resource src, Resource tgt) throws DatabaseException {\r
1064         Double pos = graph.getPossibleRelatedValue(src, DIA.HasPosition, Bindings.DOUBLE);\r
1065         Boolean hor = graph.getPossibleRelatedValue(src, DIA.IsHorizontal, Bindings.BOOLEAN);\r
1066         if (pos == null)\r
1067             pos = 0.0;\r
1068         if (hor == null)\r
1069             hor = Boolean.TRUE;\r
1070         graph.claimLiteral(tgt, DIA.HasPosition, L0.Double, pos, Bindings.DOUBLE);\r
1071         graph.claimLiteral(tgt, DIA.IsHorizontal, L0.Boolean, hor, Bindings.BOOLEAN);\r
1072     }\r
1073 \r
1074     private static String safeNameAndType(ReadGraph graph, Resource r) throws DatabaseException {\r
1075         StringBuilder sb = new StringBuilder();\r
1076         sb.append(NameUtils.getSafeName(graph, r, true));\r
1077         sb.append(" : [");\r
1078         boolean first = true;\r
1079         for (Resource type : graph.getPrincipalTypes(r)) {\r
1080             if (!first)\r
1081                 sb.append(",");\r
1082             first = false;\r
1083             sb.append(NameUtils.getSafeName(graph, type, true));\r
1084         }\r
1085         sb.append("]");\r
1086         return sb.toString();\r
1087     }\r
1088 \r
1089     private static <K, V> Map<K, V> newOrClear(Map<K, V> current) {\r
1090         if (current == null)\r
1091             return new THashMap<K, V>();\r
1092         current.clear();\r
1093         return current;\r
1094     }\r
1095 \r
1096 }