bundles/org.simantics/src/org/simantics/SimanticsPlatform.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics;
  13
  14 import static org.simantics.db.common.utils.Transaction.commit;
  15 import static org.simantics.db.common.utils.Transaction.endTransaction;
  16 import static org.simantics.db.common.utils.Transaction.readGraph;
  17 import static org.simantics.db.common.utils.Transaction.startTransaction;
  18 import static org.simantics.db.common.utils.Transaction.writeGraph;
  19
  20 import java.io.File;
  21 import java.io.IOException;
  22 import java.util.ArrayList;
  23 import java.util.Collection;
  24 import java.util.HashMap;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Map.Entry;
  28 import java.util.Properties;
  29 import java.util.Set;
  30 import java.util.TreeMap;
  31 import java.util.UUID;
  32
  33 import org.eclipse.core.runtime.ILog;
  34 import org.eclipse.core.runtime.IProduct;
  35 import org.eclipse.core.runtime.IProgressMonitor;
  36 import org.eclipse.core.runtime.IStatus;
  37 import org.eclipse.core.runtime.NullProgressMonitor;
  38 import org.eclipse.core.runtime.Platform;
  39 import org.eclipse.core.runtime.Status;
  40 import org.eclipse.core.runtime.SubMonitor;
  41 import org.eclipse.osgi.service.resolver.BundleDescription;
  42 import org.simantics.databoard.Bindings;
  43 import org.simantics.databoard.Databoard;
  44 import org.simantics.datatypes.literal.Font;
  45 import org.simantics.datatypes.literal.RGB;
  46 import org.simantics.db.Driver;
  47 import org.simantics.db.Driver.Management;
  48 import org.simantics.db.Manager;
  49 import org.simantics.db.ReadGraph;
  50 import org.simantics.db.Resource;
  51 import org.simantics.db.Session;
  52 import org.simantics.db.SessionModel;
  53 import org.simantics.db.UndoContext;
  54 import org.simantics.db.VirtualGraph;
  55 import org.simantics.db.WriteGraph;
  56 import org.simantics.db.common.request.ObjectsWithType;
  57 import org.simantics.db.common.request.Queries;
  58 import org.simantics.db.common.request.WriteRequest;
  59 import org.simantics.db.common.request.WriteResultRequest;
  60 import org.simantics.db.common.utils.Transaction;
  61 import org.simantics.db.exception.ClusterSetExistException;
  62 import org.simantics.db.exception.DatabaseException;
  63 import org.simantics.db.exception.ResourceNotFoundException;
  64 import org.simantics.db.indexing.DatabaseIndexing;
  65 import org.simantics.db.layer0.genericrelation.DependenciesRelation;
  66 import org.simantics.db.layer0.util.SimanticsClipboardImpl;
  67 import org.simantics.db.layer0.util.SimanticsKeys;
  68 import org.simantics.db.layer0.util.TGTransferableGraphSource;
  69 import org.simantics.db.layer0.variable.VariableRepository;
  70 import org.simantics.db.management.SessionContext;
  71 import org.simantics.db.request.Read;
  72 import org.simantics.db.service.LifecycleSupport.LifecycleListener;
  73 import org.simantics.db.service.LifecycleSupport.LifecycleState;
  74 import org.simantics.db.service.QueryControl;
  75 import org.simantics.db.service.UndoRedoSupport;
  76 import org.simantics.db.service.VirtualGraphSupport;
  77 import org.simantics.db.service.XSupport;
  78 import org.simantics.graph.db.GraphDependencyAnalyzer;
  79 import org.simantics.graph.db.GraphDependencyAnalyzer.IU;
  80 import org.simantics.graph.db.GraphDependencyAnalyzer.IdentityNode;
  81 import org.simantics.graph.db.IImportAdvisor;
  82 import org.simantics.graph.db.TransferableGraphs;
  83 import org.simantics.graph.diff.Diff;
  84 import org.simantics.graph.diff.TransferableGraphDelta1;
  85 import org.simantics.internal.Activator;
  86 import org.simantics.internal.startup.StartupExtensions;
  87 import org.simantics.layer0.Layer0;
  88 import org.simantics.operation.Layer0X;
  89 import org.simantics.project.IProject;
  90 import org.simantics.project.ProjectFeatures;
  91 import org.simantics.project.ProjectKeys;
  92 import org.simantics.project.Projects;
  93 import org.simantics.project.exception.ProjectException;
  94 import org.simantics.project.features.registry.GroupReference;
  95 import org.simantics.project.management.DatabaseManagement;
  96 import org.simantics.project.management.GraphBundle;
  97 import org.simantics.project.management.GraphBundleEx;
  98 import org.simantics.project.management.GraphBundleRef;
  99 import org.simantics.project.management.PlatformUtil;
 100 import org.simantics.project.management.ServerManager;
 101 import org.simantics.project.management.ServerManagerFactory;
 102 import org.simantics.project.management.WorkspaceUtil;
 103 import org.simantics.utils.FileUtils;
 104 import org.simantics.utils.datastructures.Pair;
 105 import org.simantics.utils.logging.TimeLogger;
 106 import org.slf4j.Logger;
 107 import org.slf4j.LoggerFactory;
 108
 109 /**
 110  * SimanticsPlatform performs procedures required in order to get simantics
 111  * workbench into operational state. This consists of the following steps:
 112  * <ul>
 113  *     <li> Asserting there is Database
 114  *     </li>
 115  *     <li> Starting Database process
 116  *     </li>
 117  *     <li> Opening a session to Database process
 118  *     </li>
 119  *     <li> Asserting required ontologies or other transferable graphs are installed in the database
 120  *     </li>
 121  *     <li> Asserting required project is installed in the database
 122  *     </li>
 123  *     <li> Asserting Simantics Features are installed in the database
 124  *     </li>
 125  *     <li> Asserting Simantics Features are installed to the project
 126  *     </li>
 127  *     <li> Shutdown: Save Session, Close session, Kill Database process
 128  *     </li>
 129  * </ul>
 130  *
 131  * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
 132  */
 133 public class SimanticsPlatform implements LifecycleListener {
 134
 135     private static final Logger LOGGER = LoggerFactory.getLogger(SimanticsPlatform.class);
 136
 137     /**
 138      * The policy is relevant when developing Simantics from Eclipse IDE.
 139      * It is applied when the ontology in the database of a workspace doesn't match
 140      * a newer ontology in the Eclipse workspace.
 141      */
 142     public static enum OntologyRecoveryPolicy { ThrowError, Merge, ReinstallDatabase }
 143
 144     /**
 145      * This policy dictates how the Simantics platform startup should react if
 146      * the started workspace is not set up properly. The alternatives are to
 147      * just throw an error and fail or to attempt all possible measures to fix
 148      * the encountered problems.
 149      */
 150     public static enum RecoveryPolicy { ThrowError, FixError }
 151
 152     /** Singleton instance, started in SimanticsWorkbenchAdvisor */
 153     public static final SimanticsPlatform INSTANCE = new SimanticsPlatform();
 154
 155     /** Set to true when the Simantics Platform is in good-and-go condition */
 156     public boolean running;
 157
 158     /** Database Session */
 159     public Session session;
 160     private Management databasebManagement;
 161
 162     /** Database session context */
 163     public SessionContext sessionContext;
 164
 165     /** Project identifier in Database */
 166     public String projectURI;
 167
 168     /** Project name */
 169     public String projectName;
 170
 171     /** Project resource */
 172     public Resource projectResource;
 173
 174     /** Session specific bindings */
 175     public SimanticsBindings simanticsBindings;
 176     public SimanticsBindings simanticsBindings2;
 177
 178     public Thread mainThread;
 179
 180     /**
 181      * The {@link IProject} activated by
 182      * {@link #startUp(IProgressMonitor, RecoveryPolicy, OntologyRecoveryPolicy, ServerAddress, PlatformUserAgent)}
 183      */
 184     private IProject project;
 185
 186     protected ILog log;
 187
 188     /**
 189      * Create a new simantics plaform manager in uninitialized state and
 190      * with default policies. <p>
 191      */
 192     public SimanticsPlatform() {
 193         log = Platform.getLog(Activator.getBundleContext().getBundle());
 194         mainThread = Thread.currentThread();
 195     }
 196
 197     public String getApplicationClientId() {
 198         IProduct product = Platform.getProduct();
 199         if(product == null) return "noProduct";//UUID.randomUUID().toString();
 200         String application = product.getApplication();
 201         return application != null ? application : UUID.randomUUID().toString();
 202     }
 203
 204     private Session setupDatabase(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, PlatformUserAgent userAgent) throws PlatformException {
 205         if (progressMonitor == null)
 206             progressMonitor = new NullProgressMonitor();
 207         File dbLocation = Platform.getLocation().append("db").toFile();
 208         ServerManager serverManager;
 209         try {
 210             serverManager = ServerManagerFactory.create(databaseDriverId, dbLocation.getAbsolutePath());
 211         } catch (DatabaseException | IOException e) {
 212             throw new PlatformException("Failed to initialize Server Manager", e);
 213         }
 214         progressMonitor.beginTask("Setting up Simantics Database", 100);
 215         progressMonitor.setTaskName("Asserting Database is installed.");
 216         String msg = "Failed to initialize Simantics database.";
 217         try {
 218             // Create database
 219             log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Creating database at " + dbLocation));
 220             progressMonitor.setTaskName("Creating database at " + dbLocation);
 221             databasebManagement = serverManager.getManagement(dbLocation);
 222             databasebManagement.create();
 223             // Create layer0.
 224             return serverManager.createDatabase(dbLocation);
 225         } catch (DatabaseException e) {
 226             throw new PlatformException(msg, e);
 227         } catch (Throwable e) {
 228             throw new PlatformException(msg, e);
 229         } finally {
 230             progressMonitor.worked(20);
 231         }
 232     }
 233
 234     public void synchronizeOntologies(IProgressMonitor progressMonitor, OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize) throws PlatformException {
 235
 236         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 237
 238         final DatabaseManagement mgmt = new DatabaseManagement();
 239
 240         PlatformUtil.compileAllDynamicOntologies();
 241
 242         progressMonitor.setTaskName("Asserting all ontologies are installed");
 243         final Map<GraphBundleRef, GraphBundleEx> platformTGs = new HashMap<GraphBundleRef, GraphBundleEx>();
 244         try {
 245
 246             // Get a list of bundles installed into the database
 247             progressMonitor.subTask("find installed bundles from database");
 248             Map<GraphBundleRef, GraphBundleEx> installedTGs = new HashMap<GraphBundleRef, GraphBundleEx>();
 249             for (GraphBundle b : session.syncRequest( mgmt.GraphBundleQuery )) {
 250                 installedTGs.put(GraphBundleRef.of(b), GraphBundleEx.extend(b));
 251             }
 252
 253             if(!requireSynchronize && installedTGs.size() > 1 && !Platform.inDevelopmentMode()) return;
 254 //            if(installedTGs.size() > 1) return;
 255
 256             // Get a list of all bundles in the platform (Bundle Context)
 257             List<GraphBundle> tgs = new ArrayList<GraphBundle>();
 258             progressMonitor.subTask("load all transferable graphs from platform");
 259             PlatformUtil.getAllGraphs(tgs);
 260             progressMonitor.subTask("extend bundles to compile versions");
 261             for (GraphBundle b : tgs) {
 262                 GraphBundleEx gbe = GraphBundleEx.extend(b);
 263                 gbe.build();
 264                 platformTGs.put(GraphBundleRef.of(b), gbe);
 265             }
 266
 267             // Compile a list of TGs that need to be installed or reinstalled in the database
 268             progressMonitor.subTask("check bundle reinstallation demand");
 269             List<GraphBundleEx> installTGs = new ArrayList<GraphBundleEx>();
 270             // Create list of TGs to update, <newTg, oldTg>
 271             Map<GraphBundleEx,GraphBundleEx> reinstallTGs = new TreeMap<GraphBundleEx,GraphBundleEx>();
 272             for (Entry<GraphBundleRef, GraphBundleEx> e : platformTGs.entrySet()) {
 273                 GraphBundleRef key = e.getKey();
 274                 GraphBundleEx platformBundle = e.getValue();
 275                 GraphBundleEx existingBundle = installedTGs.get(key);
 276
 277 //                System.out.println("GraphBundleRef key=" + key.toString());
 278
 279                 if (existingBundle == null) {
 280                     // Bundle did not exist in the database, put it into list of bundles to install
 281                     installTGs.add(platformBundle);
 282                 }
 283                 else {
 284                     // Bundle exists in the database
 285                     boolean platformBundleIsNewer = existingBundle.getVersion().compareTo(platformBundle.getVersion())<0;
 286                     if (!platformBundleIsNewer)
 287                         continue;
 288                     // Check hash of transferable graph to know whether to update or not.
 289                     if (platformBundle.getHashcode() == existingBundle.getHashcode())
 290                         continue;
 291                     //System.out.println("Ontology hashcodes do not match: platform bundle="
 292                     //        + platformBundle.getVersionedId() + ", hash=" + platformBundle.getHashcode()
 293                     //        + "; existing bundle=" + existingBundle.getVersionedId() + ", hash=" + existingBundle.getHashcode());
 294                     reinstallTGs.put(platformBundle, existingBundle);
 295                 }
 296             }
 297             // INSTALL
 298             // Database is missing graphs
 299             if (!installTGs.isEmpty() || !reinstallTGs.isEmpty()) {
 300                 session.getService(XSupport.class).setServiceMode(true, true);
 301
 302                 // Throw error
 303                 if (ontologyPolicy == OntologyRecoveryPolicy.ThrowError) {
 304                     StringBuilder sb = new StringBuilder("The following graphs are not installed in the database: ");
 305                     if (!installTGs.isEmpty()) {
 306                         int i = 0;
 307                         for (GraphBundleEx e : installTGs) {
 308                             if (i>0) sb.append(", ");
 309                             i++;
 310                             sb.append(e.toString());
 311                         }
 312                         sb.append(" is missing from the database.\n");
 313                     }
 314                     if (!reinstallTGs.isEmpty()) {
 315                         int i = 0;
 316                         for (Entry<GraphBundleEx, GraphBundleEx> e : reinstallTGs.entrySet()) {
 317                             if (i>0) sb.append(", ");
 318                             i++;
 319                             sb.append(e.getKey().toString());
 320                         }
 321                         sb.append(" Database/Platform Bundle version mismatch.\n");
 322                     }
 323                     sb.append("Hint: Use -fixErrors to install the graphs.");
 324                     throw new PlatformException(sb.toString());
 325                 }
 326                 // Reinstall database
 327                 if (ontologyPolicy == OntologyRecoveryPolicy.ReinstallDatabase) {
 328                     log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Reinstalling the database."));
 329                     // TODO Install DB
 330                     // Stop Session
 331                     // Kill Process
 332                     // Delete Database
 333                     // Create Database
 334                     // Start Database
 335                     // Open Session
 336                     // Install TGs
 337                     throw new PlatformException("Reinstalling Database, NOT IMPLEMENTED");
 338                 }
 339
 340                 if (ontologyPolicy == OntologyRecoveryPolicy.Merge) {
 341                     progressMonitor.subTask("Merging ontology changes");
 342                     // Sort missing TGs into install order
 343                     GraphDependencyAnalyzer<GraphBundle> analyzer = new GraphDependencyAnalyzer<GraphBundle>();
 344                     for(GraphBundle tg : installTGs) analyzer.addGraph(tg, tg.getGraph());
 345                     for(GraphBundle tg : reinstallTGs.keySet()) analyzer.addGraph(tg, tg.getGraph());
 346                     if(!analyzer.analyzeDependency()) {
 347                         Collection<Pair<GraphBundle, GraphBundle>> problems = analyzer.getConflicts();
 348                         StringBuilder sb = new StringBuilder();
 349                         for (Pair<GraphBundle, GraphBundle> problem : problems) {
 350                             sb.append("Conflict with "+problem.first+" and "+problem.second+".\n");
 351                         }
 352                         throw new PlatformException(sb.toString());
 353                     }
 354                     else if(!session.syncRequest( analyzer.queryExternalDependenciesSatisfied )) {
 355                         Collection<IdentityNode> unsatisfiedDependencies = analyzer.getUnsatisfiedDependencies();
 356                         StringBuilder sb = new StringBuilder();
 357                         for (IdentityNode dep: unsatisfiedDependencies) {
 358                             sb.append("Unsatisfied Dependency "+dep+". Required by\n");
 359                             for(IU iu : GraphDependencyAnalyzer.toCollection(dep.getRequires())) {
 360                                 sb.append("    " + ((GraphBundle)iu.getId()).getId() + "\n");
 361                             }
 362                         }
 363                         throw new PlatformException(sb.toString());
 364                     }
 365
 366                     List<GraphBundle> sortedBundles = analyzer.getSortedGraphs();
 367                     if(!sortedBundles.isEmpty()) {
 368
 369                         session.syncRequest(new WriteRequest() {
 370                             @Override
 371                             public void perform(WriteGraph graph) throws DatabaseException {
 372                                 try {
 373                                     graph.newClusterSet(graph.getRootLibrary());
 374                                 } catch (ClusterSetExistException e) {
 375                                     // Cluster set exist already, no problem.
 376                                 }
 377                                 graph.setClusterSet4NewResource(graph.getRootLibrary());
 378                                 graph.flushCluster();
 379                             }
 380                         });
 381
 382                         boolean mergedOntologies = false;
 383
 384                         // Install TGs
 385                         for(final GraphBundle tg : sortedBundles) {
 386
 387                                 final IImportAdvisor advisor = new OntologyImportAdvisor(tg, mgmt);
 388                                 final GraphBundle oldTG = reinstallTGs.get(tg);
 389
 390                                 if (oldTG==null) {
 391
 392                                         boolean createImmutable = tg.getImmutable();
 393                                 session.getService(XSupport.class).setServiceMode(true, createImmutable);
 394
 395                                         // Install TG
 396                                         log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Installing "+tg.toString()+" - "+tg.getName()));
 397                                         TransferableGraphs.importGraph1(session, new TGTransferableGraphSource(tg.getGraph()), advisor, null);
 398                                 } else {
 399                                         // Merge TG
 400                                         startTransaction(session, false);
 401                                         TransferableGraphDelta1 delta = new Diff(oldTG.getGraph(), tg.getGraph()).diff();
 402                                         final long[] oldResources = oldTG.getResourceArray();
 403                                         boolean changes = TransferableGraphs.hasChanges(readGraph(), oldResources, delta);
 404                                         endTransaction();
 405                                         if (!changes) {
 406                                             //log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Nothing to merge for "+tg.toString()));
 407                                             continue;
 408                                         }
 409
 410                                 log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Merging new version of "+tg.toString()));
 411
 412                                         startTransaction(session, true);
 413
 414                                         //delta.print();
 415                                         try {
 416
 417
 418                                                 long[] resourceArray = TransferableGraphs.applyDelta(writeGraph(), oldResources, delta);
 419                                                 tg.setResourceArray(resourceArray);
 420                                                 mgmt.setGraphBundleEntry(tg);
 421                                                 commit();
 422                                                 mergedOntologies = true;
 423                                         } catch (Throwable t) {
 424                                                 throw new PlatformException(t);
 425                                         } finally {
 426                                                 endTransaction();
 427                                         }
 428                                 }
 429                         }
 430
 431                         session.syncRequest(new WriteRequest() {
 432                             @Override
 433                             public void perform(WriteGraph graph) throws DatabaseException {
 434                                 graph.setClusterSet4NewResource(graph.getRootLibrary());
 435                                 graph.flushCluster();
 436                             }
 437                         });
 438
 439                         if (mergedOntologies)
 440                             DatabaseIndexing.deleteAllIndexes();
 441                     }
 442
 443                     TimeLogger.log("Ontologies synchronized.");
 444
 445                 }
 446                 session.getService(XSupport.class).setServiceMode(false, false);
 447             }
 448             progressMonitor.worked(20);
 449         } catch (IOException e) {
 450             throw new PlatformException(e);
 451         } catch (DatabaseException e) {
 452             throw new PlatformException(e);
 453         }
 454
 455     }
 456
 457     public boolean assertConfiguration(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy) throws PlatformException {
 458
 459         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 460
 461         File workspaceLocation = Platform.getLocation().toFile();
 462
 463         boolean installProject = false;
 464         progressMonitor.setTaskName("Asserting simantics.cfg is installed");
 465         try {
 466             File propertyFile = new File(workspaceLocation, "simantics.cfg");
 467             Properties properties;
 468             try {
 469                 properties = WorkspaceUtil.readProperties(propertyFile);
 470             } catch (IOException e) {
 471                 if (workspacePolicy == RecoveryPolicy.ThrowError) throw new PlatformException("Could not load "+propertyFile);
 472
 473                 // Create a project and write Property file
 474                 properties = new Properties();
 475                 properties.setProperty("project_uri", "http://Projects/Development%20Project");
 476                 properties.setProperty("project_name", "Development Project");
 477                 WorkspaceUtil.writeProperties(propertyFile, properties);
 478                 installProject |= true;
 479             }
 480             projectURI = properties.getProperty("project_uri");
 481             projectName = properties.getProperty("project_name");
 482             progressMonitor.worked(10);
 483         } catch (IOException e) {
 484             throw new PlatformException(e);
 485         }
 486
 487         return installProject;
 488
 489     }
 490
 491     public boolean assertProject(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, boolean installProject) throws PlatformException {
 492
 493         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 494
 495         final DatabaseManagement mgmt = new DatabaseManagement();
 496
 497         progressMonitor.setTaskName("Asserting project resource exists in the database");
 498         try {
 499             projectResource = session.syncRequest( Queries.resource( projectURI ) );
 500         } catch (ResourceNotFoundException nfe) {
 501             // Project was not found
 502             if (workspacePolicy == RecoveryPolicy.ThrowError)
 503                 throw new PlatformException("Project Resource "+projectURI+" is not found in the database.");
 504             // Create empty project with no features
 505             try {
 506                 Transaction.startTransaction(session, true);
 507                 try {
 508                     // The project needs to be created mutable.
 509                     session.getService(XSupport.class).setServiceMode(true, false);
 510
 511                     ArrayList<String> empty = new ArrayList<String>();
 512                     projectResource = mgmt.createProject(projectName, empty);
 513                     installProject |= true;
 514
 515                     session.getService(XSupport.class).setServiceMode(false, false);
 516                     Transaction.commit();
 517                 } finally {
 518                     Transaction.endTransaction();
 519                 }
 520                 //session.getService( LifecycleSupport.class ).save();
 521             } catch (DatabaseException e) {
 522                 throw new PlatformException("Failed to create "+projectURI, e);
 523             }
 524         } catch (DatabaseException e) {
 525             throw new PlatformException("Failed to create "+projectURI, e);
 526         }
 527         progressMonitor.worked(10);
 528
 529         return installProject;
 530
 531     }
 532
 533     public void updateInstalledGroups(IProgressMonitor progressMonitor, boolean installProject) throws PlatformException {
 534
 535         if (installProject)
 536         {
 537             // Attach all feature groups available in platform to created project
 538             progressMonitor.setTaskName("Install all features");
 539             Set<GroupReference> publishedFeatureGroups = ProjectFeatures.getInstallGroupsOfPublishedFeatures();
 540             Collection<GroupReference> groupsWithoutVersion = GroupReference.stripVersions(publishedFeatureGroups);
 541
 542     //        final List<String> Platform_Features = new ArrayList<String>();
 543     //
 544     //        // Convert graph instances
 545     //        Collection<TransferableGraph1> platformGraphs = new ArrayList<TransferableGraph1>();
 546     //        for (GraphBundleEx e : platformTGs.values()) platformGraphs.add( e.getGraph() );
 547     //        IGraph graph = Graphs.createGraph(platformGraphs);
 548     //
 549     //        Res    PublishedProjectFeatures = UriUtils.uriToPath( ProjectResource.URIs.PublishedProjectFeatures );
 550     //        Path   HasFeature = UriUtils.uriToPath( ProjectResource.URIs.HasFeature );
 551     //        for(Res feature : graph.getObjects(PublishedProjectFeatures, HasFeature)) {
 552     //            System.out.println("Installing Project Feature: "+feature.toString());
 553     //            Platform_Features.add( feature.toString() );
 554     //        }
 555
 556             try {
 557                 Transaction.startTransaction(session, true);
 558                 try {
 559     //                for (String feature : Platform_Features) {
 560     //                    try {
 561     //                        getResource(feature);
 562     //                    } catch(ResourceNotFoundException e) {
 563     //                        System.out.println(feature+" not found");
 564     //                    }
 565     //                    mgmt.installFeature(projectResource, feature);
 566     //                }
 567                     Projects.setProjectInstalledGroups(writeGraph(), projectResource, groupsWithoutVersion);
 568                     Transaction.commit();
 569                 } finally {
 570                     Transaction.endTransaction();
 571                 }
 572                 //session.getService( LifecycleSupport.class ).save();
 573             } catch(DatabaseException ae) {
 574                 throw new PlatformException("Failed to install features", ae);
 575             }
 576             progressMonitor.worked(10);
 577         }
 578
 579     }
 580
 581     public void assertSessionModel(IProgressMonitor progressMonitor) throws PlatformException {
 582
 583         Properties properties = session.getService(Properties.class);
 584         final String clientId = properties.getProperty("clientId");
 585
 586         try {
 587
 588             // Currently this needs to be done before data becomes available
 589             VirtualGraphSupport support = session.getService(VirtualGraphSupport.class);
 590             VirtualGraph activations = support.getWorkspacePersistent("activations");
 591
 592             Resource sessionModel = session.syncRequest(new Read<Resource>() {
 593
 594                 @Override
 595                 public Resource perform(ReadGraph graph) throws DatabaseException {
 596
 597                     Layer0X L0X = Layer0X.getInstance(graph);
 598                     for(Resource sessionModel : graph.syncRequest(new ObjectsWithType(graph.getRootLibrary(), L0X.HasSession, L0X.Session))) {
 599                         String id = graph.getPossibleRelatedValue(sessionModel, L0X.Session_HasClientId);
 600                         if(id != null && id.equals(clientId)) return sessionModel;
 601                     }
 602                     return null;
 603
 604                 }
 605
 606             });
 607
 608             if(sessionModel == null) {
 609
 610                 sessionModel = session.syncRequest(new WriteResultRequest<Resource>(activations) {
 611
 612                     @Override
 613                     public Resource perform(WriteGraph graph) throws DatabaseException {
 614                         Layer0 L0 = Layer0.getInstance(graph);
 615                         Layer0X L0X = Layer0X.getInstance(graph);
 616                         Resource session = graph.newResource();
 617                         graph.claim(session, L0.InstanceOf, null, L0X.Session);
 618                         graph.claim(session, L0X.Session_HasUser, null, graph.getResource("http://Users/AdminUser"));
 619                         graph.addLiteral(session, L0X.Session_HasClientId, L0X.Session_HasClientId_Inverse, clientId, Bindings.STRING);
 620                         graph.claim(graph.getRootLibrary(), L0X.HasSession, session);
 621                         return session;
 622                     }
 623                 });
 624
 625             }
 626
 627             session.registerService(SessionModel.class, new PlatformSessionModel(sessionModel));
 628         } catch (DatabaseException e) {
 629             throw new PlatformException(e);
 630         }
 631
 632     }
 633
 634     static class PlatformSessionModel implements SessionModel {
 635         private final Resource sessionModel;
 636
 637         public PlatformSessionModel(Resource model) {
 638             this.sessionModel = model;
 639         }
 640
 641         @Override
 642         public Resource getResource() {
 643             return sessionModel;
 644         }
 645     }
 646
 647     public void resetDatabase(IProgressMonitor monitor) throws PlatformException {
 648         File dbLocation = Platform.getLocation().append("db").toFile();
 649         if(!dbLocation.exists()) return;
 650         try { // Load driver
 651             Driver driver = Manager.getDriver("procore");
 652             Management management = driver.getManagement(dbLocation.getAbsolutePath(), null);
 653             management.delete();
 654         } catch (DatabaseException e) {
 655             throw new PlatformException("Failed to remove database at " + dbLocation.getAbsolutePath(), e);
 656         }
 657         // We have created extra files to database folder which have to be deleted also.
 658         // This is an awful idea! Do not create extra files to database folder!
 659         Throwable t = null;
 660         for (int i=0; i<10; ++i) {
 661             try {
 662                 FileUtils.deleteAll(dbLocation);
 663                 t = null;
 664                 break;
 665             } catch (IOException e) {
 666                 // Assuming this has been thrown because delete file/folder failed.
 667                 t = e;
 668             }
 669             try {
 670                 Thread.sleep(200);
 671             } catch (InterruptedException e) {
 672                 // Ignoring interrupted exception.
 673             }
 674         }
 675         if (null != t)
 676             throw new PlatformException("Failed to remove database folder at " + dbLocation.getAbsolutePath(), t);
 677     }
 678     public void resetWorkspace(IProgressMonitor monitor, ArrayList<String> fileFilter) throws PlatformException, IllegalStateException, IOException {
 679         File file = Platform.getLocation().toFile();
 680         if (null != fileFilter)
 681             FileUtils.deleteAllWithFilter(file , fileFilter);
 682         resetDatabase(monitor);
 683     }
 684
 685     /**
 686      * Start-up the platform. The procedure consists of 8 steps. Once everything
 687      * is up and running, all fields are set property.
 688      * <p>
 689      *
 690      * If workspacePolicy is FixErrors, there is an attempt to fix unexpected
 691      * errors. It includes installing database files, installing ontologies, and
 692      * installing project features.
 693      * <p>
 694      *
 695      * In SWB this is handled in SimanticsWorkbenchAdvisor#openWindows().
 696      * <p>
 697      *
 698      * If remote server is given, simantics plaform takes connection there
 699      * instead of local server at "db/".
 700      *
 701      * @param workspacePolicy action to take on workspace/database related
 702      *        errors
 703      * @param ontologyPolicy action to take on ontology mismatch
 704      * @param progressMonitor optional progress monitor
 705      * @param userAgent interface for resorting to user feedback during platform
 706      *        startup or <code>null</code> to resort to default measures
 707      * @throws PlatformException
 708      */
 709     public SessionContext startUp(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy,
 710             OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize, PlatformUserAgent userAgent)
 711     throws PlatformException
 712     {
 713
 714         assert(!running);
 715         TimeLogger.log("Beginning of SimanticsPlatform.startUp");
 716
 717         LOGGER.info("Beginning of SimanticsPlatform.startUp");
 718
 719         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 720
 721         // For debugging on what kind of platform automatic tests are running in
 722         // case there are problems.
 723         if ("true".equals(System.getProperty("org.simantics.dumpBundleState")))
 724             dumpPlatformBundleState();
 725
 726         // 0. Consult all startup extensions before doing anything with the workspace.
 727         StartupExtensions.consultStartupExtensions();
 728         TimeLogger.log("Consulted platform pre-startup extensions");
 729
 730         // 0.1. Clear all temporary files
 731         Simantics.clearTemporaryDirectory();
 732         TimeLogger.log("Cleared temporary directory");
 733
 734         // 0.2 Clear VariableRepository.repository static map which holds references to SessionImplDb
 735         VariableRepository.clear();
 736
 737         // 1. Assert there is a database at <workspace>/db
 738         session = setupDatabase(databaseDriverId, progressMonitor, workspacePolicy, userAgent);
 739         TimeLogger.log("Database setup complete");
 740
 741         // 1.1
 742         XSupport support = session.getService(XSupport.class);
 743         if (support.rolledback()) {
 744             try {
 745                 DatabaseIndexing.deleteAllIndexes();
 746             } catch (IOException e) {
 747                 throw new PlatformException(e);
 748             }
 749         }
 750
 751         // 2. Assert all graphs, and correct versions, are installed to the database
 752         synchronizeOntologies(progressMonitor, ontologyPolicy, requireSynchronize);
 753         TimeLogger.log("Synchronized ontologies");
 754
 755         // 4. Assert simantics.cfg exists
 756         boolean installProject = assertConfiguration(progressMonitor,workspacePolicy);
 757
 758         // 5. Assert Project Resource is installed in the database
 759         installProject = assertProject(progressMonitor, workspacePolicy, installProject);
 760
 761         // 6. Install all features into project, if in debug mode
 762         updateInstalledGroups(progressMonitor, installProject);
 763         TimeLogger.log("Installed all features into project");
 764
 765         // 7. Assert L0.Session in database for this session
 766         assertSessionModel(progressMonitor);
 767
 768         session.getService(XSupport.class).setServiceMode(false, false);
 769
 770         try {
 771             session.sync(new WriteRequest() {
 772
 773                 @Override
 774                 public void perform(WriteGraph graph) throws DatabaseException {
 775                     QueryControl qc = graph.getService(QueryControl.class);
 776                     qc.flush(graph);
 777                 }
 778
 779             });
 780             TimeLogger.log("Flushed queries");
 781         } catch (DatabaseException e) {
 782             LOGGER.error("Flushing queries failed.", e);
 783         }
 784         boolean loadProject = true;
 785         try {
 786
 787                 sessionContext = SimanticsPlatform.INSTANCE.createSessionContext(true);
 788                 // This must be before setSessionContext since some listeners might query this
 789             sessionContext.setHint(SimanticsKeys.KEY_PROJECT, SimanticsPlatform.INSTANCE.projectResource);
 790
 791             Simantics.setSessionContext(sessionContext);
 792
 793             // 1. Put ResourceBinding that throws an exception to General Bindings
 794             simanticsBindings = new SimanticsBindings( null );
 795             Bindings.classBindingFactory.addFactory( simanticsBindings );
 796
 797
 798             // 2. Create session-specific second Binding context (Databoard) and
 799             //    put that to Session as a service
 800             Session session = sessionContext.getSession();
 801             Databoard sessionDataboard = new Databoard();
 802             session.registerService(Databoard.class, sessionDataboard);
 803             simanticsBindings2 = new SimanticsBindings( session );
 804             sessionDataboard.classBindingFactory.addFactory( simanticsBindings2 );
 805
 806             // Register datatype bindings
 807             Bindings.defaultBindingFactory.getRepository().put(RGB.Integer.BINDING.type(), RGB.Integer.BINDING);
 808             Bindings.defaultBindingFactory.getRepository().put(Font.BINDING.type(), Font.BINDING);
 809
 810             if(loadProject) {
 811
 812                 TimeLogger.log("Load projects");
 813                 project = Projects.loadProject(sessionContext.getSession(), SimanticsPlatform.INSTANCE.projectResource);
 814
 815                 sessionContext.setHint(ProjectKeys.KEY_PROJECT, project);
 816                 TimeLogger.log("Loading projects complete");
 817
 818                 project.activate();
 819                 TimeLogger.log("Project activated");
 820             }
 821
 822         } catch (DatabaseException e) {
 823             LOGGER.error("Platform startup failed.", e);
 824             throw new PlatformException(e);
 825         } catch (ProjectException e) {
 826             boolean hasStackTrace = e.getStackTrace().length > 0;
 827             if (!hasStackTrace)
 828                 throw new PlatformException(e.getMessage(), hasStackTrace);
 829             throw new PlatformException(e, hasStackTrace);
 830         }
 831
 832         running = true;
 833
 834         return sessionContext;
 835
 836     }
 837
 838     public SessionContext createSessionContext(boolean init) throws PlatformException {
 839         try {
 840             // Construct and initialize SessionContext from Session.
 841             SessionContext sessionContext = SessionContext.create(session, init);
 842             if (init)
 843                 sessionContext.registerServices();
 844             return sessionContext;
 845         } catch (DatabaseException e) {
 846             throw new PlatformException(e);
 847         }
 848     }
 849
 850 //    private static File getIgnorePrerequisitesFile(URL workspaceUrl) {
 851 //        if (workspaceUrl == null)
 852 //            return null;
 853 //        return new File(workspaceUrl.getPath(), ".ignorePrerequisites");
 854 //    }
 855 //
 856 //    private void ensurePrerequisites(IProgressMonitor progressMonitor, PlatformUserAgent userAgent) throws PlatformException {
 857 //        Location loc = Platform.getInstanceLocation();
 858 //        File ignorePrerequisites = getIgnorePrerequisitesFile(loc.getURL());
 859 //        if (loc.isSet() && ignorePrerequisites != null) {
 860 //            if (ignorePrerequisites.exists() || ignorePrerequisites.isFile())
 861 //                return;
 862 //        }
 863 //
 864 //        try {
 865 //            ServerEnvironment.ensureServerDependenciesMet();
 866 //        } catch (ExecutionEnvironmentException e) {
 867 //            // Not installed properly, ask user whether to try installation.
 868 //            try {
 869 //                StringBuilder msg = new StringBuilder();
 870 //                msg.append("Your system seems to be missing the following prerequisites for running this application:\n\n");
 871 //                for (Product product : e.requiredProducts)
 872 //                    msg.append("\t" + product.getDescription() + "\n");
 873 //                msg.append("\nYou can either install the missing components now or ignore and attempt to start the application without them. Ignore Always will ignore this question for this workspace.");
 874 //                msg.append("\n\nSelecting Cancel will close the application.");
 875 //
 876 //                int selection = 0;
 877 //                if (userAgent != null) {
 878 //                    selection = userAgent.showPrompt("Missing Prerequisites", msg.toString(), new String[] {
 879 //                        "Install Pre-requisites",
 880 //                        "Ignore Now",
 881 //                        "Ignore Always",
 882 //                        "Cancel"
 883 //                    }, selection);
 884 //                }
 885 //                boolean tryInstall = false;
 886 //                switch (selection) {
 887 //                    case 0:
 888 //                        tryInstall = true;
 889 //                        break;
 890 //                    case 2:
 891 //                        ignorePrerequisites.createNewFile();
 892 //                    case 1:
 893 //                        break;
 894 //                    case 3:
 895 //                    case -1:
 896 //                        throw new CancelStartupException();
 897 //                }
 898 //
 899 //                if (tryInstall) {
 900 //                    // Try to install it and check for success afterwards.
 901 //                    ServerEnvironment.tryInstallDependencies(progressMonitor);
 902 //                    ServerEnvironment.ensureServerDependenciesMet();
 903 //                }
 904 //            } catch (InstallException ie) {
 905 //                throw new PlatformException(ie);
 906 //            } catch (ExecutionEnvironmentException eee) {
 907 //                throw new PlatformException(eee);
 908 //            } catch (IOException ie) {
 909 //                throw new PlatformException(ie);
 910 //            }
 911 //        }
 912 //    }
 913
 914     /**
 915      * Shutdown Simantics Platform.
 916      *
 917      * In SWB this is handled in SimanticsWorkbenchAdvisor#disconnectFromWorkspace.
 918      *
 919      * @param progressMonitor optional progress monitor
 920      * @throws PlatformException
 921      */
 922     public void shutdown(IProgressMonitor progressMonitor) throws PlatformException
 923     {
 924         SubMonitor progress = SubMonitor.convert(progressMonitor, 100);
 925         PlatformException platformException = null;
 926         try {
 927             progress.subTask("Close Project");
 928             if (project != null) {
 929                 project.safeDispose();
 930             }
 931             progress.worked(10);
 932
 933             running = false;
 934             progress.subTask("Close Database Session");
 935             Databoard databoard = null;
 936             if (sessionContext != null) {
 937                 Session s = sessionContext.peekSession();
 938                 if (s != null) {
 939                     databoard = s.peekService(Databoard.class);
 940
 941                     progress.subTask("Flushing Index Caches");
 942                     try {
 943                         Simantics.flushIndexCaches(progress.newChild(20), s);
 944                     } catch (Throwable t) {
 945                         LOGGER.error("Failed to flush index caches.", t);
 946                     }
 947                 }
 948
 949                 progress.subTask("Close Database Session");
 950                 sessionContext.safeDispose();
 951                 sessionContext = null;
 952                 Simantics.setSessionContext(null);
 953             }
 954             if (simanticsBindings != null) {
 955                 Bindings.classBindingFactory.removeFactory( simanticsBindings );
 956                 simanticsBindings = null;
 957             }
 958             if (databoard != null) {
 959                 if (simanticsBindings2 != null) {
 960                         databoard.classBindingFactory.removeFactory( simanticsBindings2 );
 961                         simanticsBindings2 = null;
 962                 }
 963                 databoard.clear();
 964             }
 965
 966             // Make sure Simantics clipboard doesn't store unwanted session data references.
 967             Simantics.setClipboard(new SimanticsClipboardImpl());
 968
 969             progress.worked(30);
 970
 971             session = null;
 972             projectResource = null;
 973
 974             DependenciesRelation.assertFinishedTracking();
 975
 976         } catch (Exception e) {
 977             platformException = new PlatformException("Failed to shutdown Simantics Platform", e);
 978         }
 979
 980         progress.worked(10);
 981         progress.subTask("Shutting down database");
 982         try {
 983             if (null != databasebManagement)
 984                 databasebManagement.shutdown();
 985         } catch (Throwable t) {
 986             LOGGER.error("Database shutdown failed.", t);
 987         }
 988         progress.worked(10);
 989
 990         progress.subTask("Clearing Workspace Temporary Directory");
 991         try {
 992             Simantics.clearTemporaryDirectory();
 993         } catch (Throwable t) {
 994             LOGGER.error("Failed to clear the temporary directory.", t);
 995         }
 996         progress.worked(10);
 997         if (null != platformException)
 998             throw platformException;
 999     }
1000
1001     // TODO: consider removing this in the future ??
1002     @Override
1003     public void stateChanged(LifecycleState newState) {
1004         if(newState == LifecycleState.CLOSED) {
1005             if(running) {
1006                 if(Platform.isRunning()) {
1007                     mainThread.interrupt();
1008                 }
1009             }
1010         }
1011     }
1012
1013     /**
1014      * @return <code>true</code> if discard was successful, <code>false</code>
1015      *         if there was no session, {@link UndoRedoSupport} or
1016      *         {@link UndoContext} to discard through
1017      */
1018     public boolean discardSessionUndoHistory() {
1019         Session s = session;
1020         if (s != null) {
1021             UndoRedoSupport urs = s.peekService(UndoRedoSupport.class);
1022             if (urs != null) {
1023                 UndoContext uc = urs.getUndoContext(s);
1024                 if (uc != null) {
1025                     uc.clear();
1026                     return true;
1027                 }
1028             }
1029         }
1030         return false;
1031     }
1032
1033     public void reconnect(String databaseDriverId) throws Exception {
1034         // Starts database server.
1035         SimanticsPlatform.INSTANCE.startUp(databaseDriverId, null, RecoveryPolicy.ThrowError, OntologyRecoveryPolicy.ThrowError, true, null);
1036     }
1037
1038     private void dumpPlatformBundleState() {
1039         BundleDescription[] bs = Platform.getPlatformAdmin().getState().getBundles();
1040         System.out.println("Total bundles: " + bs.length);
1041         for (BundleDescription b : bs) {
1042             System.out.format("%-80s @ %s\n", b.toString(), b.getLocation());
1043         }
1044     }
1045
1046 }
1047