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.nio.file.Files;
  23 import java.nio.file.Path;
  24 import java.nio.file.Paths;
  25 import java.util.ArrayList;
  26 import java.util.Collection;
  27 import java.util.HashMap;
  28 import java.util.List;
  29 import java.util.Map;
  30 import java.util.Map.Entry;
  31 import java.util.Properties;
  32 import java.util.Set;
  33 import java.util.TreeMap;
  34 import java.util.UUID;
  35
  36 import org.eclipse.core.runtime.ILog;
  37 import org.eclipse.core.runtime.IProduct;
  38 import org.eclipse.core.runtime.IProgressMonitor;
  39 import org.eclipse.core.runtime.IStatus;
  40 import org.eclipse.core.runtime.NullProgressMonitor;
  41 import org.eclipse.core.runtime.Platform;
  42 import org.eclipse.core.runtime.Status;
  43 import org.eclipse.core.runtime.SubMonitor;
  44 import org.eclipse.osgi.service.resolver.BundleDescription;
  45 import org.ini4j.Ini;
  46 import org.ini4j.InvalidFileFormatException;
  47 import org.simantics.databoard.Bindings;
  48 import org.simantics.databoard.Databoard;
  49 import org.simantics.datatypes.literal.Font;
  50 import org.simantics.datatypes.literal.RGB;
  51 import org.simantics.db.Driver;
  52 import org.simantics.db.Driver.Management;
  53 import org.simantics.db.Manager;
  54 import org.simantics.db.ReadGraph;
  55 import org.simantics.db.Resource;
  56 import org.simantics.db.Session;
  57 import org.simantics.db.SessionModel;
  58 import org.simantics.db.UndoContext;
  59 import org.simantics.db.VirtualGraph;
  60 import org.simantics.db.WriteGraph;
  61 import org.simantics.db.common.request.ObjectsWithType;
  62 import org.simantics.db.common.request.Queries;
  63 import org.simantics.db.common.request.WriteResultRequest;
  64 import org.simantics.db.common.utils.Transaction;
  65 import org.simantics.db.exception.ClusterSetExistException;
  66 import org.simantics.db.exception.DatabaseException;
  67 import org.simantics.db.exception.ResourceNotFoundException;
  68 import org.simantics.db.indexing.DatabaseIndexing;
  69 import org.simantics.db.layer0.genericrelation.DependenciesRelation;
  70 import org.simantics.db.layer0.genericrelation.IndexException;
  71 import org.simantics.db.layer0.genericrelation.IndexedRelations;
  72 import org.simantics.db.layer0.util.SimanticsClipboardImpl;
  73 import org.simantics.db.layer0.util.SimanticsKeys;
  74 import org.simantics.db.layer0.util.TGTransferableGraphSource;
  75 import org.simantics.db.layer0.variable.VariableRepository;
  76 import org.simantics.db.management.SessionContext;
  77 import org.simantics.db.request.Read;
  78 import org.simantics.db.request.Write;
  79 import org.simantics.db.service.LifecycleSupport.LifecycleListener;
  80 import org.simantics.db.service.LifecycleSupport.LifecycleState;
  81 import org.simantics.db.service.QueryControl;
  82 import org.simantics.db.service.UndoRedoSupport;
  83 import org.simantics.db.service.VirtualGraphSupport;
  84 import org.simantics.db.service.XSupport;
  85 import org.simantics.graph.db.GraphDependencyAnalyzer;
  86 import org.simantics.graph.db.GraphDependencyAnalyzer.IU;
  87 import org.simantics.graph.db.GraphDependencyAnalyzer.IdentityNode;
  88 import org.simantics.graph.db.IImportAdvisor;
  89 import org.simantics.graph.db.ImportResult;
  90 import org.simantics.graph.db.TransferableGraphs;
  91 import org.simantics.graph.diff.Diff;
  92 import org.simantics.graph.diff.TransferableGraphDelta1;
  93 import org.simantics.internal.Activator;
  94 import org.simantics.internal.startup.StartupExtensions;
  95 import org.simantics.layer0.Layer0;
  96 import org.simantics.operation.Layer0X;
  97 import org.simantics.project.IProject;
  98 import org.simantics.project.ProjectFeatures;
  99 import org.simantics.project.ProjectKeys;
 100 import org.simantics.project.Projects;
 101 import org.simantics.project.SessionDescriptor;
 102 import org.simantics.project.exception.ProjectException;
 103 import org.simantics.project.features.registry.GroupReference;
 104 import org.simantics.project.management.DatabaseManagement;
 105 import org.simantics.project.management.GraphBundle;
 106 import org.simantics.project.management.GraphBundleEx;
 107 import org.simantics.project.management.GraphBundleRef;
 108 import org.simantics.project.management.PlatformUtil;
 109 import org.simantics.project.management.ServerManager;
 110 import org.simantics.project.management.ServerManagerFactory;
 111 import org.simantics.project.management.WorkspaceUtil;
 112 import org.simantics.utils.FileUtils;
 113 import org.simantics.utils.datastructures.Pair;
 114 import org.simantics.utils.logging.TimeLogger;
 115 import org.simantics.utils.strings.EString;
 116 import org.slf4j.Logger;
 117 import org.slf4j.LoggerFactory;
 118
 119 /**
 120  * SimanticsPlatform performs procedures required in order to get simantics
 121  * workbench into operational state. This consists of the following steps:
 122  * <ul>
 123  *     <li> Asserting there is Database
 124  *     </li>
 125  *     <li> Starting Database process
 126  *     </li>
 127  *     <li> Opening a session to Database process
 128  *     </li>
 129  *     <li> Asserting required ontologies or other transferable graphs are installed in the database
 130  *     </li>
 131  *     <li> Asserting required project is installed in the database
 132  *     </li>
 133  *     <li> Asserting Simantics Features are installed in the database
 134  *     </li>
 135  *     <li> Asserting Simantics Features are installed to the project
 136  *     </li>
 137  *     <li> Shutdown: Save Session, Close session, Kill Database process
 138  *     </li>
 139  * </ul>
 140  *
 141  * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
 142  */
 143 public class SimanticsPlatform implements LifecycleListener {
 144
 145     private static final Logger LOGGER = LoggerFactory.getLogger(SimanticsPlatform.class);
 146
 147     /**
 148      * The policy is relevant when developing Simantics from Eclipse IDE.
 149      * It is applied when the ontology in the database of a workspace doesn't match
 150      * a newer ontology in the Eclipse workspace.
 151      */
 152     public static enum OntologyRecoveryPolicy { ThrowError, Merge, ReinstallDatabase }
 153
 154     /**
 155      * This policy dictates how the Simantics platform startup should react if
 156      * the started workspace is not set up properly. The alternatives are to
 157      * just throw an error and fail or to attempt all possible measures to fix
 158      * the encountered problems.
 159      */
 160     public static enum RecoveryPolicy { ThrowError, FixError }
 161
 162     /** Singleton instance, started in SimanticsWorkbenchAdvisor */
 163     public static final SimanticsPlatform INSTANCE = new SimanticsPlatform();
 164
 165     /** Set to true when the Simantics Platform is in good-and-go condition */
 166     public boolean running;
 167
 168     /** ID of the database driver that the platform is currently using */
 169     private String currentDatabaseDriver;
 170
 171     /** Database Session */
 172     public Session session;
 173     private Management databasebManagement;
 174
 175     /** Database session context */
 176     public SessionContext sessionContext;
 177
 178     /** Project identifier in Database */
 179     public String projectURI;
 180
 181     /** Project name */
 182     public String projectName;
 183
 184     /** Project resource */
 185     public Resource projectResource;
 186
 187     /** Session specific bindings */
 188     public SimanticsBindings simanticsBindings;
 189     public SimanticsBindings simanticsBindings2;
 190
 191     public Thread mainThread;
 192
 193     private Thread shutdownHook = new Thread() {
 194         @Override
 195         public void run() {
 196             try {
 197                 LOGGER.warn("Simantics platform was not properly shut down. Executing safety shutdown hook.");
 198                 shutdown(null, false);
 199             } catch (PlatformException e) {
 200                 LOGGER.error("Simantics Platform shutdown hook execution failed.", e);
 201                 log.log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Simantics Platform shutdown hook execution failed.", e));
 202             }
 203         }
 204     };
 205
 206     /**
 207      * The {@link IProject} activated by
 208      * {@link #startUp(IProgressMonitor, RecoveryPolicy, OntologyRecoveryPolicy, ServerAddress, PlatformUserAgent)}
 209      */
 210     private IProject project;
 211
 212     protected ILog log;
 213
 214     /**
 215      * Create a new simantics plaform manager in uninitialized state and
 216      * with default policies. <p>
 217      */
 218     public SimanticsPlatform() {
 219         log = Platform.getLog(Activator.getBundleContext().getBundle());
 220         mainThread = Thread.currentThread();
 221     }
 222
 223     public String getApplicationClientId() {
 224         IProduct product = Platform.getProduct();
 225         if(product == null) return "noProduct";//UUID.randomUUID().toString();
 226         String application = product.getApplication();
 227         return application != null ? application : UUID.randomUUID().toString();
 228     }
 229
 230     private SessionDescriptor setupDatabase(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, PlatformUserAgent userAgent) throws PlatformException {
 231         if (progressMonitor == null)
 232             progressMonitor = new NullProgressMonitor();
 233         Path workspaceLocation = Platform.getLocation().toFile().toPath();
 234         Path dbLocation = workspaceLocation.resolve("db");
 235         Path dbIniPath = workspaceLocation.resolve("db.ini");
 236         // The driver file overrides any command line arguments to prevent
 237         // using the wrong driver for an existing database directory.
 238         ServerManager serverManager;
 239         try {
 240             Ini dbIni = loadOrCreateDatabaseIni(dbIniPath, databaseDriverId);
 241             databaseDriverId = dbIni.get("driver", "id");
 242             serverManager = ServerManagerFactory.create(databaseDriverId, dbLocation.toAbsolutePath().toString());
 243         } catch (DatabaseException | IOException e) {
 244             throw new PlatformException("Failed to initialize database ServerManager with driver " + databaseDriverId, e);
 245         }
 246         progressMonitor.beginTask("Setting up Simantics Database", 100);
 247         progressMonitor.setTaskName("Asserting Database is installed.");
 248         String msg = "Failed to initialize Simantics database.";
 249         try {
 250             // Create database
 251             log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Initializing database at " + dbLocation + " with driver " + databaseDriverId));
 252             progressMonitor.setTaskName("Creating database at " + dbLocation);
 253             databasebManagement = serverManager.getManagement(dbLocation.toFile());
 254             databasebManagement.create();
 255             currentDatabaseDriver = databaseDriverId;
 256             // Create layer0.
 257             return serverManager.createDatabase(dbLocation.toFile());
 258         } catch (DatabaseException e) {
 259             throw new PlatformException(msg, e);
 260         } catch (Throwable e) {
 261             throw new PlatformException(msg, e);
 262         } finally {
 263             progressMonitor.worked(20);
 264         }
 265     }
 266
 267     public void synchronizeOntologies(IProgressMonitor progressMonitor, OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize) throws PlatformException {
 268
 269         SubMonitor monitor = SubMonitor.convert(progressMonitor, 100);
 270
 271         monitor.setTaskName("Compile dynamic ontologies");
 272         PlatformUtil.compileAllDynamicOntologies();
 273
 274         String message = "Asserting all ontologies are installed";
 275         LOGGER.info(message);
 276         monitor.setTaskName(message);
 277
 278         DatabaseManagement mgmt = new DatabaseManagement();
 279         Map<GraphBundleRef, GraphBundleEx> platformTGs = new HashMap<>();
 280         try {
 281
 282             // Get a list of bundles installed into the database
 283             message = "find installed bundles from database";
 284             monitor.subTask(message);
 285             LOGGER.info(message);
 286             Map<GraphBundleRef, GraphBundleEx> installedTGs = new HashMap<>();
 287             for (GraphBundle b : session.syncRequest( mgmt.GraphBundleQuery )) {
 288                 installedTGs.put(GraphBundleRef.of(b), GraphBundleEx.extend(b));
 289             }
 290
 291             if(!requireSynchronize && installedTGs.size() > 1 && !Platform.inDevelopmentMode()) return;
 292 //            if(installedTGs.size() > 1) return;
 293
 294             // Get a list of all bundles in the platform (Bundle Context)
 295             message = "load all transferable graphs from platform";
 296             monitor.subTask(message);
 297             LOGGER.info(message);
 298             Collection<GraphBundle> tgs = PlatformUtil.getAllGraphs();
 299             message = "extend bundles to compile versions";
 300             monitor.subTask(message);
 301             LOGGER.info(message);
 302             for (GraphBundle b : tgs) {
 303                 GraphBundleEx gbe = GraphBundleEx.extend(b);
 304                 gbe.build();
 305                 platformTGs.put(GraphBundleRef.of(b), gbe);
 306             }
 307
 308             // Compile a list of TGs that need to be installed or reinstalled in the database
 309             message = "check bundle reinstallation demand";
 310             monitor.subTask(message);
 311             LOGGER.info(message);
 312             List<GraphBundleEx> installTGs = new ArrayList<>();
 313             // Create list of TGs to update, <newTg, oldTg>
 314             Map<GraphBundleEx,GraphBundleEx> reinstallTGs = new TreeMap<>();
 315             for (Entry<GraphBundleRef, GraphBundleEx> e : platformTGs.entrySet()) {
 316                 GraphBundleRef key = e.getKey();
 317                 GraphBundleEx platformBundle = e.getValue();
 318                 GraphBundleEx existingBundle = installedTGs.get(key);
 319
 320 //                System.out.println("GraphBundleRef key=" + key.toString());
 321
 322                 if (existingBundle == null) {
 323                     // Bundle did not exist in the database, put it into list of bundles to install
 324                     installTGs.add(platformBundle);
 325                 }
 326                 else {
 327                     // Bundle exists in the database
 328                     boolean platformBundleIsNewer = existingBundle.getVersion().compareTo(platformBundle.getVersion())<0;
 329                     if (!platformBundleIsNewer)
 330                         continue;
 331                     // Check hash of transferable graph to know whether to update or not.
 332                     if (platformBundle.getHashcode() == existingBundle.getHashcode())
 333                         continue;
 334                     //System.out.println("Ontology hashcodes do not match: platform bundle="
 335                     //        + platformBundle.getVersionedId() + ", hash=" + platformBundle.getHashcode()
 336                     //        + "; existing bundle=" + existingBundle.getVersionedId() + ", hash=" + existingBundle.getHashcode());
 337                     reinstallTGs.put(platformBundle, existingBundle);
 338                 }
 339             }
 340             // INSTALL
 341             // Database is missing graphs
 342             if (!installTGs.isEmpty() || !reinstallTGs.isEmpty()) {
 343                 session.getService(XSupport.class).setServiceMode(true, true);
 344
 345                 // Throw error
 346                 if (ontologyPolicy == OntologyRecoveryPolicy.ThrowError) {
 347                     StringBuilder sb = new StringBuilder("The following graphs are not installed in the database: ");
 348                     if (!installTGs.isEmpty()) {
 349                         int i = 0;
 350                         for (GraphBundleEx e : installTGs) {
 351                             if (i>0) sb.append(", ");
 352                             i++;
 353                             sb.append(e.toString());
 354                         }
 355                         sb.append(" is missing from the database.\n");
 356                     }
 357                     if (!reinstallTGs.isEmpty()) {
 358                         int i = 0;
 359                         for (Entry<GraphBundleEx, GraphBundleEx> e : reinstallTGs.entrySet()) {
 360                             if (i>0) sb.append(", ");
 361                             i++;
 362                             sb.append(e.getKey().toString());
 363                         }
 364                         sb.append(" Database/Platform Bundle version mismatch.\n");
 365                     }
 366                     sb.append("Hint: Use -fixErrors to install the graphs.");
 367                     throw new PlatformException(sb.toString());
 368                 }
 369                 // Reinstall database
 370                 if (ontologyPolicy == OntologyRecoveryPolicy.ReinstallDatabase) {
 371                     log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Reinstalling the database."));
 372                     // TODO Install DB
 373                     // Stop Session
 374                     // Kill Process
 375                     // Delete Database
 376                     // Create Database
 377                     // Start Database
 378                     // Open Session
 379                     // Install TGs
 380                     throw new PlatformException("Reinstalling Database, NOT IMPLEMENTED");
 381                 }
 382
 383                 if (ontologyPolicy == OntologyRecoveryPolicy.Merge) {
 384                     message = "Merging ontology changes";
 385                     monitor.subTask(message);
 386                     LOGGER.info(message);
 387                     // Sort missing TGs into install order
 388                     GraphDependencyAnalyzer<GraphBundle> analyzer = new GraphDependencyAnalyzer<GraphBundle>();
 389                     for(GraphBundle tg : installTGs) analyzer.addGraph(tg, tg.getGraph());
 390                     for(GraphBundle tg : reinstallTGs.keySet()) analyzer.addGraph(tg, tg.getGraph());
 391                     if(!analyzer.analyzeDependency()) {
 392                         Collection<Pair<GraphBundle, GraphBundle>> problems = analyzer.getConflicts();
 393                         StringBuilder sb = new StringBuilder();
 394                         for (Pair<GraphBundle, GraphBundle> problem : problems) {
 395                             sb.append("Conflict with "+problem.first+" and "+problem.second+".\n");
 396                         }
 397                         throw new PlatformException(sb.toString());
 398                     }
 399                     else if(!session.syncRequest( analyzer.queryExternalDependenciesSatisfied )) {
 400                         Collection<IdentityNode> unsatisfiedDependencies = analyzer.getUnsatisfiedDependencies();
 401                         StringBuilder sb = new StringBuilder();
 402                         for (IdentityNode dep: unsatisfiedDependencies) {
 403                             sb.append("Unsatisfied Dependency "+dep+". Required by\n");
 404                             for(IU iu : GraphDependencyAnalyzer.toCollection(dep.getRequires())) {
 405                                 sb.append("    " + ((GraphBundle)iu.getId()).getId() + "\n");
 406                             }
 407                         }
 408                         throw new PlatformException(sb.toString());
 409                     }
 410
 411                     List<GraphBundle> sortedBundles = analyzer.getSortedGraphs();
 412                     if(!sortedBundles.isEmpty()) {
 413
 414                         session.syncRequest((Write) graph -> {
 415                             try {
 416                                 graph.newClusterSet(graph.getRootLibrary());
 417                             } catch (ClusterSetExistException e) {
 418                                 // Cluster set exist already, no problem.
 419                             }
 420                             graph.setClusterSet4NewResource(graph.getRootLibrary());
 421                             graph.flushCluster();
 422                         });
 423
 424                         boolean mergedOntologies = false;
 425
 426                         // Install TGs
 427                         for(final GraphBundle tg : sortedBundles) {
 428
 429                                 final IImportAdvisor advisor = new OntologyImportAdvisor(tg, mgmt);
 430                                 final GraphBundle oldTG = reinstallTGs.get(tg);
 431
 432                                 boolean createImmutable = tg.getImmutable();
 433
 434                                 if (oldTG==null) {
 435
 436                                 session.getService(XSupport.class).setServiceMode(true, createImmutable);
 437
 438                                         // Install TG
 439                                         log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Installing "+tg.toString()+" - "+tg.getName()));
 440                                         ImportResult result = TransferableGraphs.importGraph1(session, new TGTransferableGraphSource(tg.getGraph()), advisor, null);
 441                                         if (!result.missingExternals.isEmpty()) {
 442                                                 log.log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Import of " + tg.toString() + " was missing the following external entities:\n" + EString.implode(result.missingExternals)));
 443                                         }
 444                                 } else {
 445                                         if(!createImmutable)
 446                                                 continue;
 447
 448                                         // Merge TG
 449                                         startTransaction(session, false);
 450                                         TransferableGraphDelta1 delta = new Diff(oldTG.getGraph(), tg.getGraph()).diff();
 451                                         final long[] oldResources = oldTG.getResourceArray();
 452                                         boolean changes = TransferableGraphs.hasChanges(readGraph(), oldResources, delta);
 453                                         endTransaction();
 454                                         if (!changes) {
 455                                             //log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Nothing to merge for "+tg.toString()));
 456                                             continue;
 457                                         }
 458
 459                                 log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Merging new version of "+tg.toString()));
 460
 461                                         startTransaction(session, true);
 462
 463                                         //delta.print();
 464                                         try {
 465                                                 long[] resourceArray = TransferableGraphs.applyDelta(writeGraph(), oldResources, delta);
 466                                                 tg.setResourceArray(resourceArray);
 467                                                 mgmt.setGraphBundleEntry(tg);
 468                                                 commit();
 469                                                 mergedOntologies = true;
 470                                         } catch (Throwable t) {
 471                                                 throw new PlatformException(t);
 472                                         } finally {
 473                                                 endTransaction();
 474                                         }
 475                                 }
 476                         }
 477
 478                         session.syncRequest((Write) graph -> {
 479                             graph.setClusterSet4NewResource(graph.getRootLibrary());
 480                             graph.flushCluster();
 481                         });
 482
 483                         if (mergedOntologies)
 484                             DatabaseIndexing.deleteAllIndexes();
 485                     }
 486                 }
 487                 session.getService(XSupport.class).setServiceMode(false, false);
 488             }
 489             monitor.worked(100);
 490         } catch (IOException e) {
 491             throw new PlatformException(e);
 492         } catch (DatabaseException e) {
 493             throw new PlatformException(e);
 494         }
 495
 496     }
 497
 498     public boolean assertConfiguration(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy) throws PlatformException {
 499
 500         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 501
 502         File workspaceLocation = Platform.getLocation().toFile();
 503
 504         boolean installProject = false;
 505         progressMonitor.setTaskName("Asserting simantics.cfg is installed");
 506         try {
 507             File propertyFile = new File(workspaceLocation, "simantics.cfg");
 508             Properties properties;
 509             try {
 510                 properties = WorkspaceUtil.readProperties(propertyFile);
 511             } catch (IOException e) {
 512                 if (workspacePolicy == RecoveryPolicy.ThrowError) throw new PlatformException("Could not load "+propertyFile);
 513
 514                 // Create a project and write Property file
 515                 properties = new Properties();
 516                 properties.setProperty("project_uri", "http://Projects/Development%20Project");
 517                 properties.setProperty("project_name", "Development Project");
 518                 WorkspaceUtil.writeProperties(propertyFile, properties);
 519                 installProject |= true;
 520             }
 521             projectURI = properties.getProperty("project_uri");
 522             projectName = properties.getProperty("project_name");
 523             progressMonitor.worked(10);
 524         } catch (IOException e) {
 525             throw new PlatformException(e);
 526         }
 527
 528         return installProject;
 529
 530     }
 531
 532     public boolean assertProject(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, boolean installProject) throws PlatformException {
 533
 534         SubMonitor monitor = SubMonitor.convert(progressMonitor, 10);
 535
 536         final DatabaseManagement mgmt = new DatabaseManagement();
 537
 538         monitor.setTaskName("Asserting project resource exists in the database");
 539         try {
 540             projectResource = session.syncRequest( Queries.resource( projectURI ) );
 541         } catch (ResourceNotFoundException nfe) {
 542             // Project was not found
 543             if (workspacePolicy == RecoveryPolicy.ThrowError)
 544                 throw new PlatformException("Project Resource "+projectURI+" is not found in the database.");
 545             // Create empty project with no features
 546             try {
 547                 Transaction.startTransaction(session, true);
 548                 try {
 549                     // The project needs to be created mutable.
 550                     session.getService(XSupport.class).setServiceMode(true, false);
 551
 552                     ArrayList<String> empty = new ArrayList<String>();
 553                     projectResource = mgmt.createProject(projectName, empty);
 554                     installProject |= true;
 555
 556                     session.getService(XSupport.class).setServiceMode(false, false);
 557                     Transaction.commit();
 558                 } finally {
 559                     Transaction.endTransaction();
 560                 }
 561                 //session.getService( LifecycleSupport.class ).save();
 562             } catch (DatabaseException e) {
 563                 throw new PlatformException("Failed to create "+projectURI, e);
 564             }
 565         } catch (DatabaseException e) {
 566             throw new PlatformException("Failed to create "+projectURI, e);
 567         }
 568         monitor.worked(10);
 569
 570         return installProject;
 571
 572     }
 573
 574     public void updateInstalledGroups(IProgressMonitor progressMonitor, boolean installProject) throws PlatformException {
 575
 576         if (installProject)
 577         {
 578             // Attach all feature groups available in platform to created project
 579             progressMonitor.setTaskName("Install all features");
 580             Set<GroupReference> publishedFeatureGroups = ProjectFeatures.getInstallGroupsOfPublishedFeatures();
 581             Collection<GroupReference> groupsWithoutVersion = GroupReference.stripVersions(publishedFeatureGroups);
 582
 583             try {
 584                 session.syncRequest(
 585                         (Write) graph ->
 586                         Projects.setProjectInstalledGroups(graph, projectResource, groupsWithoutVersion));
 587             } catch (DatabaseException ae) {
 588                 throw new PlatformException("Failed to install features", ae);
 589             }
 590             progressMonitor.worked(10);
 591         }
 592
 593     }
 594
 595     public void assertSessionModel(IProgressMonitor progressMonitor) throws PlatformException {
 596
 597         Properties properties = session.getService(Properties.class);
 598         final String clientId = properties.getProperty("clientId");
 599
 600         try {
 601
 602             // Currently this needs to be done before data becomes available
 603             VirtualGraphSupport support = session.getService(VirtualGraphSupport.class);
 604             VirtualGraph activations = support.getWorkspacePersistent("activations");
 605
 606             Resource sessionModel = session.syncRequest(new Read<Resource>() {
 607
 608                 @Override
 609                 public Resource perform(ReadGraph graph) throws DatabaseException {
 610
 611                     Layer0X L0X = Layer0X.getInstance(graph);
 612                     for(Resource sessionModel : graph.syncRequest(new ObjectsWithType(graph.getRootLibrary(), L0X.HasSession, L0X.Session))) {
 613                         String id = graph.getPossibleRelatedValue(sessionModel, L0X.Session_HasClientId);
 614                         if(id != null && id.equals(clientId)) return sessionModel;
 615                     }
 616                     return null;
 617
 618                 }
 619
 620             });
 621
 622             if(sessionModel == null) {
 623
 624                 sessionModel = session.syncRequest(new WriteResultRequest<Resource>(activations) {
 625
 626                     @Override
 627                     public Resource perform(WriteGraph graph) throws DatabaseException {
 628                         Layer0 L0 = Layer0.getInstance(graph);
 629                         Layer0X L0X = Layer0X.getInstance(graph);
 630                         Resource session = graph.newResource();
 631                         graph.claim(session, L0.InstanceOf, null, L0X.Session);
 632                         graph.claim(session, L0X.Session_HasUser, null, graph.getResource("http://Users/AdminUser"));
 633                         graph.addLiteral(session, L0X.Session_HasClientId, L0X.Session_HasClientId_Inverse, clientId, Bindings.STRING);
 634                         graph.claim(graph.getRootLibrary(), L0X.HasSession, session);
 635                         return session;
 636                     }
 637                 });
 638
 639             }
 640
 641             session.registerService(SessionModel.class, new PlatformSessionModel(sessionModel));
 642         } catch (DatabaseException e) {
 643             throw new PlatformException(e);
 644         }
 645
 646     }
 647
 648     static class PlatformSessionModel implements SessionModel {
 649         private final Resource sessionModel;
 650
 651         public PlatformSessionModel(Resource model) {
 652             this.sessionModel = model;
 653         }
 654
 655         @Override
 656         public Resource getResource() {
 657             return sessionModel;
 658         }
 659     }
 660
 661     public void resetDatabase(IProgressMonitor monitor) throws PlatformException {
 662         File dbLocation = Platform.getLocation().append("db").toFile();
 663         if(!dbLocation.exists()) return;
 664         try { // Load driver
 665             Driver driver = Manager.getDriver("procore");
 666             Management management = driver.getManagement(dbLocation.getAbsolutePath(), null);
 667             management.delete();
 668         } catch (DatabaseException e) {
 669             throw new PlatformException("Failed to remove database at " + dbLocation.getAbsolutePath(), e);
 670         }
 671         // We have created extra files to database folder which have to be deleted also.
 672         // This is an awful idea! Do not create extra files to database folder!
 673         Throwable t = null;
 674         for (int i=0; i<10; ++i) {
 675             try {
 676                 FileUtils.deleteAll(dbLocation);
 677                 t = null;
 678                 break;
 679             } catch (IOException e) {
 680                 // Assuming this has been thrown because delete file/folder failed.
 681                 t = e;
 682             }
 683             try {
 684                 Thread.sleep(200);
 685             } catch (InterruptedException e) {
 686                 // Ignoring interrupted exception.
 687             }
 688         }
 689         if (null != t)
 690             throw new PlatformException("Failed to remove database folder at " + dbLocation.getAbsolutePath(), t);
 691     }
 692     public void resetWorkspace(IProgressMonitor monitor, ArrayList<String> fileFilter) throws PlatformException, IllegalStateException, IOException {
 693         File file = Platform.getLocation().toFile();
 694         if (null != fileFilter)
 695             FileUtils.deleteAllWithFilter(file , fileFilter);
 696         resetDatabase(monitor);
 697     }
 698
 699     public boolean handleBaselineDatabase() throws PlatformException {
 700         Path workspaceLocation = Platform.getLocation().toFile().toPath();
 701         Path baselineIndicatorFile = workspaceLocation.resolve(".baselined");
 702         if (Files.isRegularFile(baselineIndicatorFile)) {
 703             // This means that the workspace has already been initialized from
 704             // a database baseline and further initialization is not necessary.
 705             return true;
 706         }
 707
 708         String dbBaselineArchive = System.getProperty("org.simantics.db.baseline", null);
 709         if (dbBaselineArchive == null)
 710             return false;
 711
 712         Path baseline = Paths.get(dbBaselineArchive);
 713         if (!Files.isRegularFile(baseline))
 714             throw new PlatformException("Specified database baseline archive " + baseline + " does not exist. Cannot initialize workspace database.");
 715
 716         DatabaseBaselines.validateBaselineFile(baseline);
 717         DatabaseBaselines.validateWorkspaceForBaselineInitialization(workspaceLocation);
 718
 719         try {
 720             Files.createDirectories(workspaceLocation);
 721             FileUtils.extractZip(baseline.toFile(), workspaceLocation.toFile());
 722             Files.write(baselineIndicatorFile, DatabaseBaselines.baselineIndicatorContents(baselineIndicatorFile));
 723             return true;
 724         } catch (IOException e) {
 725             throw new PlatformException(e);
 726         }
 727     }
 728
 729     /**
 730      * Start-up the platform. The procedure consists of 8 steps. Once everything
 731      * is up and running, all fields are set property.
 732      * <p>
 733      *
 734      * If workspacePolicy is FixErrors, there is an attempt to fix unexpected
 735      * errors. It includes installing database files, installing ontologies, and
 736      * installing project features.
 737      * <p>
 738      *
 739      * In Simantics Workbench this is handled in
 740      * <code>SimanticsWorkbenchAdvisor#openWindows()</code>.
 741      * <p>
 742      *
 743      * If remote server is given, simantics plaform takes connection there
 744      * instead of local server at "db/".
 745      *
 746      * @param workspacePolicy action to take on workspace/database related
 747      *        errors
 748      * @param ontologyPolicy action to take on ontology mismatch
 749      * @param progressMonitor optional progress monitor
 750      * @param userAgent interface for resorting to user feedback during platform
 751      *        startup or <code>null</code> to resort to default measures
 752      * @throws PlatformException
 753      */
 754     public synchronized SessionContext startUp(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy,
 755             OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize, PlatformUserAgent userAgent)
 756     throws PlatformException
 757     {
 758
 759         assert(!running);
 760         TimeLogger.log("Beginning of SimanticsPlatform.startUp");
 761
 762         LOGGER.info("Beginning of SimanticsPlatform.startUp");
 763
 764         SubMonitor monitor = SubMonitor.convert(progressMonitor, 1000);
 765
 766         // For debugging on what kind of platform automatic tests are running in
 767         // case there are problems.
 768         if ("true".equals(System.getProperty("org.simantics.dumpBundleState")))
 769             dumpPlatformBundleState();
 770
 771         // 0. Consult all startup extensions before doing anything with the workspace.
 772         StartupExtensions.consultStartupExtensions();
 773         TimeLogger.log("Consulted platform pre-startup extensions");
 774
 775         // 0.1. Clear all temporary files
 776         Simantics.clearTemporaryDirectory();
 777         TimeLogger.log("Cleared temporary directory");
 778
 779         // 0.2 Clear VariableRepository.repository static map which holds references to SessionImplDb
 780         VariableRepository.clear();
 781
 782         // 0.3 Handle baseline database before opening db
 783         @SuppressWarnings("unused")
 784         boolean usingBaseline = handleBaselineDatabase();
 785
 786         // 1. Assert there is a database at <workspace>/db
 787         SessionDescriptor sessionDescriptor = setupDatabase(databaseDriverId, monitor.newChild(200, SubMonitor.SUPPRESS_NONE), workspacePolicy, userAgent);
 788         session = sessionDescriptor.getSession();
 789         TimeLogger.log("Database setup complete");
 790
 791         // 2. Delete all indexes if we cannot be certain they are up-to-date
 792         //    A full index rebuild will be done later, before project activation.
 793         XSupport support = session.getService(XSupport.class);
 794         if (support.rolledback()) {
 795             try {
 796                 DatabaseIndexing.deleteAllIndexes();
 797             } catch (IOException e) {
 798                 throw new PlatformException(e);
 799             }
 800         }
 801
 802         // 3. Assert all graphs, and correct versions, are installed to the database
 803         synchronizeOntologies(monitor.newChild(400, SubMonitor.SUPPRESS_NONE), ontologyPolicy, requireSynchronize);
 804         TimeLogger.log("Synchronized ontologies");
 805
 806         // 4. Assert simantics.cfg exists
 807         boolean installProject = assertConfiguration(monitor.newChild(25, SubMonitor.SUPPRESS_NONE),workspacePolicy);
 808
 809         // 5. Assert Project Resource is installed in the database
 810         installProject = assertProject(monitor.newChild(25, SubMonitor.SUPPRESS_NONE), workspacePolicy, installProject);
 811
 812         // 6. Install all features into project, if in debug mode
 813         updateInstalledGroups(monitor.newChild(25), true); //installProject);
 814         TimeLogger.log("Installed all features into project");
 815
 816         // 7. Assert L0.Session in database for this session
 817         assertSessionModel(monitor.newChild(25, SubMonitor.SUPPRESS_NONE));
 818
 819         session.getService(XSupport.class).setServiceMode(false, false);
 820
 821         try {
 822             monitor.setTaskName("Flush query cache");
 823             session.syncRequest((Write) graph -> {
 824                 QueryControl qc = graph.getService(QueryControl.class);
 825                 qc.flush(graph);
 826             });
 827             TimeLogger.log("Flushed queries");
 828         } catch (DatabaseException e) {
 829             LOGGER.error("Flushing queries failed.", e);
 830         }
 831         boolean loadProject = true;
 832         try {
 833
 834             monitor.setTaskName("Open database session");
 835                 sessionContext = SimanticsPlatform.INSTANCE.createSessionContext(true);
 836                 // This must be before setSessionContext since some listeners might query this
 837             sessionContext.setHint(SimanticsKeys.KEY_PROJECT, SimanticsPlatform.INSTANCE.projectResource);
 838
 839             Simantics.setSessionContext(sessionContext);
 840
 841             // 1. Put ResourceBinding that throws an exception to General Bindings
 842             simanticsBindings = new SimanticsBindings( null );
 843             Bindings.classBindingFactory.addFactory( simanticsBindings );
 844
 845
 846             // 2. Create session-specific second Binding context (Databoard) and
 847             //    put that to Session as a service
 848             Session session = sessionContext.getSession();
 849             Databoard sessionDataboard = new Databoard();
 850             session.registerService(Databoard.class, sessionDataboard);
 851             simanticsBindings2 = new SimanticsBindings( session );
 852             sessionDataboard.classBindingFactory.addFactory( simanticsBindings2 );
 853
 854             // Register datatype bindings
 855             Bindings.defaultBindingFactory.getRepository().put(RGB.Integer.BINDING.type(), RGB.Integer.BINDING);
 856             Bindings.defaultBindingFactory.getRepository().put(Font.BINDING.type(), Font.BINDING);
 857
 858             if (support.rolledback() || sessionDescriptor.isFreshDatabase()) {
 859                 monitor.setTaskName("Rebuilding all indexes");
 860                 try {
 861                     session.getService(IndexedRelations.class).fullRebuild(monitor.newChild(100), session);
 862                 } catch (IndexException e) {
 863                     LOGGER.error("Failed to re-build all indexes", e);
 864                 }
 865             } else {
 866                 monitor.worked(100);
 867             }
 868
 869             if(loadProject) {
 870                 TimeLogger.log("Load project");
 871                 monitor.setTaskName("Load project");
 872                 project = Projects.loadProject(sessionContext.getSession(), SimanticsPlatform.INSTANCE.projectResource);
 873                 sessionContext.setHint(ProjectKeys.KEY_PROJECT, project);
 874                 monitor.worked(100);
 875                 TimeLogger.log("Loading projects complete");
 876
 877                 monitor.setTaskName("Activate project");
 878                 project.activate();
 879                 monitor.worked(100);
 880                 TimeLogger.log("Project activated");
 881             }
 882
 883         } catch (DatabaseException e) {
 884             LOGGER.error("Platform startup failed.", e);
 885             throw new PlatformException(e);
 886         } catch (ProjectException e) {
 887             boolean hasStackTrace = e.getStackTrace().length > 0;
 888             if (!hasStackTrace)
 889                 throw new PlatformException(e.getMessage(), hasStackTrace);
 890             throw new PlatformException(e, hasStackTrace);
 891         }
 892
 893         running = true;
 894
 895         // #7650: improve shutdown robustness in all applications that use the platform
 896         Runtime.getRuntime().addShutdownHook(shutdownHook);
 897
 898         // Discard database session undo history at this point to prevent
 899         // the user from undoing any initialization operations performed
 900         // by the platform startup.
 901         SimanticsPlatform.INSTANCE.discardSessionUndoHistory();
 902         TimeLogger.log("Discarded session undo history");
 903
 904         return sessionContext;
 905
 906     }
 907
 908     public SessionContext createSessionContext(boolean init) throws PlatformException {
 909         try {
 910             // Construct and initialize SessionContext from Session.
 911             SessionContext sessionContext = SessionContext.create(session, init);
 912             TimeLogger.log("Session context created");
 913             if (init) {
 914                 sessionContext.registerServices();
 915                 TimeLogger.log("Session services registered");
 916             }
 917             return sessionContext;
 918         } catch (DatabaseException e) {
 919             throw new PlatformException(e);
 920         }
 921     }
 922
 923     /**
 924      * Perform normal shutdown for the Simantics Platform.
 925      *
 926      * @param progressMonitor optional progress monitor
 927      * @throws PlatformException
 928      * @see {@link #shutdown(IProgressMonitor, boolean)}
 929      */
 930     public synchronized void shutdown(IProgressMonitor progressMonitor) throws PlatformException {
 931         shutdown(progressMonitor, true);
 932     }
 933
 934     /**
 935      * Shutdown Simantics Platform.
 936      *
 937      * In Simantics Workbench this is handled in
 938      * <code>SimanticsWorkbenchAdvisor#disconnectFromWorkspace</code>.
 939      *
 940      * @param progressMonitor
 941      *            optional progress monitor
 942      * @param clearTemporaryFiles
 943      *            allow or prevent deletion of temporary files at the end of the
 944      *            shutdown procedure
 945      * @throws PlatformException
 946      */
 947     public synchronized void shutdown(IProgressMonitor progressMonitor, boolean clearTemporaryFiles) throws PlatformException
 948     {
 949         SubMonitor progress = SubMonitor.convert(progressMonitor, 100);
 950         PlatformException platformException = null;
 951         try {
 952             progress.subTask("Close Project");
 953             if (project != null) {
 954                 project.safeDispose();
 955             }
 956             progress.worked(10);
 957
 958             running = false;
 959             progress.subTask("Close Database Session");
 960             Databoard databoard = null;
 961             if (sessionContext != null) {
 962                 Session s = sessionContext.peekSession();
 963                 if (s != null) {
 964                     databoard = s.peekService(Databoard.class);
 965
 966                     progress.subTask("Flushing Index Caches");
 967                     try {
 968                         Simantics.flushIndexCaches(progress.newChild(20), s);
 969                     } catch (Throwable t) {
 970                         LOGGER.error("Failed to flush index caches.", t);
 971                     }
 972                 }
 973
 974                 progress.subTask("Close Database Session");
 975                 sessionContext.safeDispose();
 976                 sessionContext = null;
 977                 Simantics.setSessionContext(null);
 978             }
 979             if (simanticsBindings != null) {
 980                 Bindings.classBindingFactory.removeFactory( simanticsBindings );
 981                 simanticsBindings = null;
 982             }
 983             if (databoard != null) {
 984                 if (simanticsBindings2 != null) {
 985                         databoard.classBindingFactory.removeFactory( simanticsBindings2 );
 986                         simanticsBindings2 = null;
 987                 }
 988                 databoard.clear();
 989             }
 990
 991             // Make sure Simantics clipboard doesn't store unwanted session data references.
 992             Simantics.setClipboard(new SimanticsClipboardImpl());
 993
 994             progress.worked(30);
 995
 996             session = null;
 997             projectResource = null;
 998             currentDatabaseDriver = null;
 999
1000             DependenciesRelation.assertFinishedTracking();
1001
1002         } catch (Exception e) {
1003             platformException = new PlatformException("Failed to shutdown Simantics Platform", e);
1004         }
1005
1006         progress.worked(10);
1007         progress.subTask("Shutting down database");
1008         try {
1009             if (null != databasebManagement)
1010                 databasebManagement.shutdown();
1011         } catch (Throwable t) {
1012             LOGGER.error("Database shutdown failed.", t);
1013         }
1014         progress.worked(10);
1015
1016         if (clearTemporaryFiles) {
1017             progress.subTask("Clearing Workspace Temporary Directory");
1018             try {
1019                 Simantics.clearTemporaryDirectory();
1020             } catch (Throwable t) {
1021                 LOGGER.error("Failed to clear the temporary directory.", t);
1022             }
1023         }
1024         progress.worked(10);
1025         if (null != platformException)
1026             throw platformException;
1027
1028         // #7650: improve shutdown robustness in all applications that use the platform
1029         Runtime.getRuntime().removeShutdownHook(shutdownHook);
1030     }
1031
1032     // TODO: consider removing this in the future ??
1033     @Override
1034     public void stateChanged(LifecycleState newState) {
1035         if(newState == LifecycleState.CLOSED) {
1036             if(running) {
1037                 if(Platform.isRunning()) {
1038                     mainThread.interrupt();
1039                 }
1040             }
1041         }
1042     }
1043
1044     /**
1045      * @return <code>true</code> if discard was successful, <code>false</code>
1046      *         if there was no session, {@link UndoRedoSupport} or
1047      *         {@link UndoContext} to discard through
1048      */
1049     public boolean discardSessionUndoHistory() {
1050         Session s = session;
1051         if (s != null) {
1052             UndoRedoSupport urs = s.peekService(UndoRedoSupport.class);
1053             if (urs != null) {
1054                 UndoContext uc = urs.getUndoContext(s);
1055                 if (uc != null) {
1056                     uc.clear();
1057                     return true;
1058                 }
1059             }
1060         }
1061         return false;
1062     }
1063
1064     public void reconnect(String databaseDriverId) throws Exception {
1065         // Starts database server.
1066         if (currentDatabaseDriver != null)
1067             databaseDriverId = currentDatabaseDriver;
1068         SimanticsPlatform.INSTANCE.startUp(databaseDriverId, null, RecoveryPolicy.ThrowError, OntologyRecoveryPolicy.ThrowError, true, null);
1069     }
1070
1071     private void dumpPlatformBundleState() {
1072         BundleDescription[] bs = Platform.getPlatformAdmin().getState().getBundles();
1073         System.out.println("Total bundles: " + bs.length);
1074         for (BundleDescription b : bs) {
1075             System.out.format("%-80s @ %s\n", b.toString(), b.getLocation());
1076         }
1077     }
1078
1079     private Ini loadOrCreateDatabaseIni(Path path, String databaseDriverId)
1080             throws InvalidFileFormatException, IOException
1081     {
1082         File f = path.toFile();
1083         Ini dbIni = Files.isRegularFile(path) ? new Ini(f) : new Ini();
1084         String iniId = dbIni != null ? dbIni.get("driver", "id") : null;
1085         if (iniId == null) {
1086             dbIni.put("driver", "id", databaseDriverId);
1087             dbIni.store(f);
1088         }
1089         return dbIni;
1090     }
1091
1092 }