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.datalocation.Location;
  45 import org.eclipse.osgi.service.resolver.BundleDescription;
  46 import org.ini4j.Ini;
  47 import org.ini4j.InvalidFileFormatException;
  48 import org.simantics.databoard.Bindings;
  49 import org.simantics.databoard.Databoard;
  50 import org.simantics.datatypes.literal.Font;
  51 import org.simantics.datatypes.literal.RGB;
  52 import org.simantics.db.Driver;
  53 import org.simantics.db.Driver.Management;
  54 import org.simantics.db.Manager;
  55 import org.simantics.db.ReadGraph;
  56 import org.simantics.db.Resource;
  57 import org.simantics.db.Session;
  58 import org.simantics.db.SessionModel;
  59 import org.simantics.db.UndoContext;
  60 import org.simantics.db.VirtualGraph;
  61 import org.simantics.db.WriteGraph;
  62 import org.simantics.db.common.request.ObjectsWithType;
  63 import org.simantics.db.common.request.Queries;
  64 import org.simantics.db.common.request.WriteResultRequest;
  65 import org.simantics.db.common.utils.Transaction;
  66 import org.simantics.db.exception.ClusterSetExistException;
  67 import org.simantics.db.exception.DatabaseException;
  68 import org.simantics.db.exception.ResourceNotFoundException;
  69 import org.simantics.db.indexing.DatabaseIndexing;
  70 import org.simantics.db.layer0.genericrelation.DependenciesRelation;
  71 import org.simantics.db.layer0.genericrelation.IndexException;
  72 import org.simantics.db.layer0.genericrelation.IndexedRelations;
  73 import org.simantics.db.layer0.util.SimanticsClipboardImpl;
  74 import org.simantics.db.layer0.util.SimanticsKeys;
  75 import org.simantics.db.layer0.util.TGTransferableGraphSource;
  76 import org.simantics.db.layer0.variable.VariableRepository;
  77 import org.simantics.db.management.SessionContext;
  78 import org.simantics.db.request.Read;
  79 import org.simantics.db.request.Write;
  80 import org.simantics.db.service.LifecycleSupport.LifecycleListener;
  81 import org.simantics.db.service.LifecycleSupport.LifecycleState;
  82 import org.simantics.db.service.QueryControl;
  83 import org.simantics.db.service.UndoRedoSupport;
  84 import org.simantics.db.service.VirtualGraphSupport;
  85 import org.simantics.db.service.XSupport;
  86 import org.simantics.graph.db.GraphDependencyAnalyzer;
  87 import org.simantics.graph.db.GraphDependencyAnalyzer.IU;
  88 import org.simantics.graph.db.GraphDependencyAnalyzer.IdentityNode;
  89 import org.simantics.graph.db.IImportAdvisor;
  90 import org.simantics.graph.db.ImportResult;
  91 import org.simantics.graph.db.TransferableGraphs;
  92 import org.simantics.graph.diff.Diff;
  93 import org.simantics.graph.diff.TransferableGraphDelta1;
  94 import org.simantics.internal.Activator;
  95 import org.simantics.internal.startup.StartupExtensions;
  96 import org.simantics.layer0.Layer0;
  97 import org.simantics.operation.Layer0X;
  98 import org.simantics.project.IProject;
  99 import org.simantics.project.ProjectFeatures;
 100 import org.simantics.project.ProjectKeys;
 101 import org.simantics.project.Projects;
 102 import org.simantics.project.SessionDescriptor;
 103 import org.simantics.project.exception.ProjectException;
 104 import org.simantics.project.features.registry.GroupReference;
 105 import org.simantics.project.management.DatabaseManagement;
 106 import org.simantics.project.management.GraphBundle;
 107 import org.simantics.project.management.GraphBundleEx;
 108 import org.simantics.project.management.GraphBundleRef;
 109 import org.simantics.project.management.PlatformUtil;
 110 import org.simantics.project.management.ServerManager;
 111 import org.simantics.project.management.ServerManagerFactory;
 112 import org.simantics.project.management.WorkspaceUtil;
 113 import org.simantics.utils.FileUtils;
 114 import org.simantics.utils.datastructures.Pair;
 115 import org.simantics.utils.logging.TimeLogger;
 116 import org.simantics.utils.strings.EString;
 117 import org.slf4j.Logger;
 118 import org.slf4j.LoggerFactory;
 119
 120 /**
 121  * SimanticsPlatform performs procedures required in order to get simantics
 122  * workbench into operational state. This consists of the following steps:
 123  * <ul>
 124  *     <li> Asserting there is Database
 125  *     </li>
 126  *     <li> Starting Database process
 127  *     </li>
 128  *     <li> Opening a session to Database process
 129  *     </li>
 130  *     <li> Asserting required ontologies or other transferable graphs are installed in the database
 131  *     </li>
 132  *     <li> Asserting required project is installed in the database
 133  *     </li>
 134  *     <li> Asserting Simantics Features are installed in the database
 135  *     </li>
 136  *     <li> Asserting Simantics Features are installed to the project
 137  *     </li>
 138  *     <li> Shutdown: Save Session, Close session, Kill Database process
 139  *     </li>
 140  * </ul>
 141  *
 142  * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
 143  */
 144 public class SimanticsPlatform implements LifecycleListener {
 145
 146     private static final Logger LOGGER = LoggerFactory.getLogger(SimanticsPlatform.class);
 147
 148     /**
 149      * The policy is relevant when developing Simantics from Eclipse IDE.
 150      * It is applied when the ontology in the database of a workspace doesn't match
 151      * a newer ontology in the Eclipse workspace.
 152      */
 153     public static enum OntologyRecoveryPolicy { ThrowError, Merge, ReinstallDatabase }
 154
 155     /**
 156      * This policy dictates how the Simantics platform startup should react if
 157      * the started workspace is not set up properly. The alternatives are to
 158      * just throw an error and fail or to attempt all possible measures to fix
 159      * the encountered problems.
 160      */
 161     public static enum RecoveryPolicy { ThrowError, FixError }
 162
 163     /** Singleton instance, started in SimanticsWorkbenchAdvisor */
 164     public static final SimanticsPlatform INSTANCE = new SimanticsPlatform();
 165
 166     /** Set to true when the Simantics Platform is in good-and-go condition */
 167     public boolean running;
 168
 169     /** ID of the database driver that the platform is currently using */
 170     private String currentDatabaseDriver;
 171
 172     /** Database Session */
 173     public Session session;
 174     private Management databasebManagement;
 175
 176     /** Database session context */
 177     public SessionContext sessionContext;
 178
 179     /** Project identifier in Database */
 180     public String projectURI;
 181
 182     /** Project name */
 183     public String projectName;
 184
 185     /** Project resource */
 186     public Resource projectResource;
 187
 188     /** Session specific bindings */
 189     public SimanticsBindings simanticsBindings;
 190     public SimanticsBindings simanticsBindings2;
 191
 192     public Thread mainThread;
 193
 194     private Thread shutdownHook = new Thread() {
 195         @Override
 196         public void run() {
 197             try {
 198                 LOGGER.warn("Simantics platform was not properly shut down. Executing safety shutdown hook.");
 199                 shutdown(null, false);
 200             } catch (PlatformException e) {
 201                 LOGGER.error("Simantics Platform shutdown hook execution failed.", e);
 202                 log.log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Simantics Platform shutdown hook execution failed.", e));
 203             }
 204         }
 205     };
 206
 207     /**
 208      * The {@link IProject} activated by
 209      * {@link #startUp(IProgressMonitor, RecoveryPolicy, OntologyRecoveryPolicy, ServerAddress, PlatformUserAgent)}
 210      */
 211     private IProject project;
 212
 213     protected ILog log;
 214
 215     /**
 216      * Create a new simantics plaform manager in uninitialized state and
 217      * with default policies. <p>
 218      */
 219     public SimanticsPlatform() {
 220         log = Platform.getLog(Activator.getBundleContext().getBundle());
 221         mainThread = Thread.currentThread();
 222     }
 223
 224     public String getApplicationClientId() {
 225         IProduct product = Platform.getProduct();
 226         if(product == null) return "noProduct";//UUID.randomUUID().toString();
 227         String application = product.getApplication();
 228         return application != null ? application : UUID.randomUUID().toString();
 229     }
 230
 231     private SessionDescriptor setupDatabase(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, PlatformUserAgent userAgent) throws PlatformException {
 232         if (progressMonitor == null)
 233             progressMonitor = new NullProgressMonitor();
 234         Path workspaceLocation = Platform.getLocation().toFile().toPath();
 235         Path dbLocation = workspaceLocation.resolve("db");
 236         Path dbIniPath = workspaceLocation.resolve("db.ini");
 237         // The driver file overrides any command line arguments to prevent
 238         // using the wrong driver for an existing database directory.
 239         ServerManager serverManager;
 240         try {
 241             Ini dbIni = loadOrCreateDatabaseIni(dbIniPath, databaseDriverId);
 242             databaseDriverId = dbIni.get("driver", "id");
 243             serverManager = ServerManagerFactory.create(databaseDriverId, dbLocation.toAbsolutePath().toString());
 244         } catch (DatabaseException | IOException e) {
 245             throw new PlatformException("Failed to initialize database ServerManager with driver " + databaseDriverId, e);
 246         }
 247         progressMonitor.beginTask("Setting up Simantics Database", 100);
 248         progressMonitor.setTaskName("Asserting Database is installed.");
 249         String msg = "Failed to initialize Simantics database.";
 250         try {
 251             // Create database
 252             log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Initializing database at " + dbLocation + " with driver " + databaseDriverId));
 253             progressMonitor.setTaskName("Creating database at " + dbLocation);
 254             databasebManagement = serverManager.getManagement(dbLocation.toFile());
 255             databasebManagement.create();
 256             currentDatabaseDriver = databaseDriverId;
 257             // Create layer0.
 258             return serverManager.createDatabase(dbLocation.toFile());
 259         } catch (DatabaseException e) {
 260             throw new PlatformException(msg, e);
 261         } catch (Throwable e) {
 262             throw new PlatformException(msg, e);
 263         } finally {
 264             progressMonitor.worked(20);
 265         }
 266     }
 267
 268     public void synchronizeOntologies(IProgressMonitor progressMonitor, OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize) throws PlatformException {
 269
 270         SubMonitor monitor = SubMonitor.convert(progressMonitor, 100);
 271
 272         monitor.setTaskName("Compile dynamic ontologies");
 273         PlatformUtil.compileAllDynamicOntologies();
 274
 275         String message = "Asserting all ontologies are installed";
 276         LOGGER.info(message);
 277         monitor.setTaskName(message);
 278
 279         DatabaseManagement mgmt = new DatabaseManagement();
 280         Map<GraphBundleRef, GraphBundleEx> platformTGs = new HashMap<>();
 281         try {
 282
 283             // Get a list of bundles installed into the database
 284             message = "find installed bundles from database";
 285             monitor.subTask(message);
 286             LOGGER.info(message);
 287             Map<GraphBundleRef, GraphBundleEx> installedTGs = new HashMap<>();
 288             for (GraphBundle b : session.syncRequest( mgmt.GraphBundleQuery )) {
 289                 installedTGs.put(GraphBundleRef.of(b), GraphBundleEx.extend(b));
 290             }
 291
 292             if(!requireSynchronize && installedTGs.size() > 1 && !Platform.inDevelopmentMode()) return;
 293 //            if(installedTGs.size() > 1) return;
 294
 295             // Get a list of all bundles in the platform (Bundle Context)
 296             message = "load all transferable graphs from platform";
 297             monitor.subTask(message);
 298             LOGGER.info(message);
 299             Collection<GraphBundle> tgs = PlatformUtil.getAllGraphs();
 300             message = "extend bundles to compile versions";
 301             monitor.subTask(message);
 302             LOGGER.info(message);
 303             for (GraphBundle b : tgs) {
 304                 GraphBundleEx gbe = GraphBundleEx.extend(b);
 305                 gbe.build();
 306                 platformTGs.put(GraphBundleRef.of(b), gbe);
 307             }
 308
 309             // Compile a list of TGs that need to be installed or reinstalled in the database
 310             message = "check bundle reinstallation demand";
 311             monitor.subTask(message);
 312             LOGGER.info(message);
 313             List<GraphBundleEx> installTGs = new ArrayList<>();
 314             // Create list of TGs to update, <newTg, oldTg>
 315             Map<GraphBundleEx,GraphBundleEx> reinstallTGs = new TreeMap<>();
 316             for (Entry<GraphBundleRef, GraphBundleEx> e : platformTGs.entrySet()) {
 317                 GraphBundleRef key = e.getKey();
 318                 GraphBundleEx platformBundle = e.getValue();
 319                 GraphBundleEx existingBundle = installedTGs.get(key);
 320
 321 //                System.out.println("GraphBundleRef key=" + key.toString());
 322
 323                 if (existingBundle == null) {
 324                     // Bundle did not exist in the database, put it into list of bundles to install
 325                     installTGs.add(platformBundle);
 326                 }
 327                 else {
 328                     // Bundle exists in the database
 329                     boolean platformBundleIsNewer = existingBundle.getVersion().compareTo(platformBundle.getVersion())<0;
 330                     if (!platformBundleIsNewer)
 331                         continue;
 332                     // Check hash of transferable graph to know whether to update or not.
 333                     if (platformBundle.getHashcode() == existingBundle.getHashcode())
 334                         continue;
 335                     //System.out.println("Ontology hashcodes do not match: platform bundle="
 336                     //        + platformBundle.getVersionedId() + ", hash=" + platformBundle.getHashcode()
 337                     //        + "; existing bundle=" + existingBundle.getVersionedId() + ", hash=" + existingBundle.getHashcode());
 338                     reinstallTGs.put(platformBundle, existingBundle);
 339                 }
 340             }
 341             // INSTALL
 342             // Database is missing graphs
 343             if (!installTGs.isEmpty() || !reinstallTGs.isEmpty()) {
 344                 session.getService(XSupport.class).setServiceMode(true, true);
 345
 346                 // Throw error
 347                 if (ontologyPolicy == OntologyRecoveryPolicy.ThrowError) {
 348                     StringBuilder sb = new StringBuilder("The following graphs are not installed in the database: ");
 349                     if (!installTGs.isEmpty()) {
 350                         int i = 0;
 351                         for (GraphBundleEx e : installTGs) {
 352                             if (i>0) sb.append(", ");
 353                             i++;
 354                             sb.append(e.toString());
 355                         }
 356                         sb.append(" is missing from the database.\n");
 357                     }
 358                     if (!reinstallTGs.isEmpty()) {
 359                         int i = 0;
 360                         for (Entry<GraphBundleEx, GraphBundleEx> e : reinstallTGs.entrySet()) {
 361                             if (i>0) sb.append(", ");
 362                             i++;
 363                             sb.append(e.getKey().toString());
 364                         }
 365                         sb.append(" Database/Platform Bundle version mismatch.\n");
 366                     }
 367                     sb.append("Hint: Use -fixErrors to install the graphs.");
 368                     throw new PlatformException(sb.toString());
 369                 }
 370                 // Reinstall database
 371                 if (ontologyPolicy == OntologyRecoveryPolicy.ReinstallDatabase) {
 372                     log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Reinstalling the database."));
 373                     // TODO Install DB
 374                     // Stop Session
 375                     // Kill Process
 376                     // Delete Database
 377                     // Create Database
 378                     // Start Database
 379                     // Open Session
 380                     // Install TGs
 381                     throw new PlatformException("Reinstalling Database, NOT IMPLEMENTED");
 382                 }
 383
 384                 if (ontologyPolicy == OntologyRecoveryPolicy.Merge) {
 385                     message = "Merging ontology changes";
 386                     monitor.subTask(message);
 387                     LOGGER.info(message);
 388                     // Sort missing TGs into install order
 389                     GraphDependencyAnalyzer<GraphBundle> analyzer = new GraphDependencyAnalyzer<GraphBundle>();
 390                     for(GraphBundle tg : installTGs) analyzer.addGraph(tg, tg.getGraph());
 391                     for(GraphBundle tg : reinstallTGs.keySet()) analyzer.addGraph(tg, tg.getGraph());
 392                     if(!analyzer.analyzeDependency()) {
 393                         Collection<Pair<GraphBundle, GraphBundle>> problems = analyzer.getConflicts();
 394                         StringBuilder sb = new StringBuilder();
 395                         for (Pair<GraphBundle, GraphBundle> problem : problems) {
 396                             sb.append("Conflict with "+problem.first+" and "+problem.second+".\n");
 397                         }
 398                         throw new PlatformException(sb.toString());
 399                     }
 400                     else if(!session.syncRequest( analyzer.queryExternalDependenciesSatisfied )) {
 401                         Collection<IdentityNode> unsatisfiedDependencies = analyzer.getUnsatisfiedDependencies();
 402                         StringBuilder sb = new StringBuilder();
 403                         for (IdentityNode dep: unsatisfiedDependencies) {
 404                             sb.append("Unsatisfied Dependency "+dep+". Required by\n");
 405                             for(IU iu : GraphDependencyAnalyzer.toCollection(dep.getRequires())) {
 406                                 sb.append("    " + ((GraphBundle)iu.getId()).getId() + "\n");
 407                             }
 408                         }
 409                         throw new PlatformException(sb.toString());
 410                     }
 411
 412                     List<GraphBundle> sortedBundles = analyzer.getSortedGraphs();
 413                     if(!sortedBundles.isEmpty()) {
 414
 415                         session.syncRequest((Write) graph -> {
 416                             try {
 417                                 graph.newClusterSet(graph.getRootLibrary());
 418                             } catch (ClusterSetExistException e) {
 419                                 // Cluster set exist already, no problem.
 420                             }
 421                             graph.setClusterSet4NewResource(graph.getRootLibrary());
 422                             graph.flushCluster();
 423                         });
 424
 425                         boolean mergedOntologies = false;
 426
 427                         // Install TGs
 428                         for(final GraphBundle tg : sortedBundles) {
 429
 430                                 final IImportAdvisor advisor = new OntologyImportAdvisor(tg, mgmt);
 431                                 final GraphBundle oldTG = reinstallTGs.get(tg);
 432
 433                                 boolean createImmutable = tg.getImmutable();
 434
 435                                 if (oldTG==null) {
 436
 437                                 session.getService(XSupport.class).setServiceMode(true, createImmutable);
 438
 439                                         // Install TG
 440                                         log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Installing "+tg.toString()+" - "+tg.getName()));
 441                                         ImportResult result = TransferableGraphs.importGraph1(session, new TGTransferableGraphSource(tg.getGraph()), advisor, null);
 442                                         if (!result.missingExternals.isEmpty()) {
 443                                                 log.log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Import of " + tg.toString() + " was missing the following external entities:\n" + EString.implode(result.missingExternals)));
 444                                         }
 445                                 } else {
 446                                         if(!createImmutable)
 447                                                 continue;
 448
 449                                         // Merge TG
 450                                         startTransaction(session, false);
 451                                         TransferableGraphDelta1 delta = new Diff(oldTG.getGraph(), tg.getGraph()).diff();
 452                                         final long[] oldResources = oldTG.getResourceArray();
 453                                         boolean changes = TransferableGraphs.hasChanges(readGraph(), oldResources, delta);
 454                                         endTransaction();
 455                                         if (!changes) {
 456                                             //log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Nothing to merge for "+tg.toString()));
 457                                             continue;
 458                                         }
 459
 460                                 log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Merging new version of "+tg.toString()));
 461
 462                                         startTransaction(session, true);
 463
 464                                         //delta.print();
 465                                         try {
 466                                                 long[] resourceArray = TransferableGraphs.applyDelta(writeGraph(), oldResources, delta);
 467                                                 tg.setResourceArray(resourceArray);
 468                                                 mgmt.setGraphBundleEntry(tg);
 469                                                 commit();
 470                                                 mergedOntologies = true;
 471                                         } catch (Throwable t) {
 472                                                 throw new PlatformException(t);
 473                                         } finally {
 474                                                 endTransaction();
 475                                         }
 476                                 }
 477                         }
 478
 479                         session.syncRequest((Write) graph -> {
 480                             graph.setClusterSet4NewResource(graph.getRootLibrary());
 481                             graph.flushCluster();
 482                         });
 483
 484                         if (mergedOntologies)
 485                             DatabaseIndexing.deleteAllIndexes();
 486                     }
 487                 }
 488                 session.getService(XSupport.class).setServiceMode(false, false);
 489             }
 490             monitor.worked(100);
 491         } catch (IOException e) {
 492             throw new PlatformException(e);
 493         } catch (DatabaseException e) {
 494             throw new PlatformException(e);
 495         }
 496
 497     }
 498
 499     public boolean assertConfiguration(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy) throws PlatformException {
 500
 501         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 502
 503         File workspaceLocation = Platform.getLocation().toFile();
 504
 505         boolean installProject = false;
 506         progressMonitor.setTaskName("Asserting simantics.cfg is installed");
 507         try {
 508             File propertyFile = new File(workspaceLocation, "simantics.cfg");
 509             Properties properties;
 510             try {
 511                 properties = WorkspaceUtil.readProperties(propertyFile);
 512             } catch (IOException e) {
 513                 if (workspacePolicy == RecoveryPolicy.ThrowError) throw new PlatformException("Could not load "+propertyFile);
 514
 515                 // Create a project and write Property file
 516                 properties = new Properties();
 517                 properties.setProperty("project_uri", "http://Projects/Development%20Project");
 518                 properties.setProperty("project_name", "Development Project");
 519                 WorkspaceUtil.writeProperties(propertyFile, properties);
 520                 installProject |= true;
 521             }
 522             projectURI = properties.getProperty("project_uri");
 523             projectName = properties.getProperty("project_name");
 524             progressMonitor.worked(10);
 525         } catch (IOException e) {
 526             throw new PlatformException(e);
 527         }
 528
 529         return installProject;
 530
 531     }
 532
 533     public boolean assertProject(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, boolean installProject) throws PlatformException {
 534
 535         SubMonitor monitor = SubMonitor.convert(progressMonitor, 10);
 536
 537         final DatabaseManagement mgmt = new DatabaseManagement();
 538
 539         monitor.setTaskName("Asserting project resource exists in the database");
 540         try {
 541             projectResource = session.syncRequest( Queries.resource( projectURI ) );
 542         } catch (ResourceNotFoundException nfe) {
 543             // Project was not found
 544             if (workspacePolicy == RecoveryPolicy.ThrowError)
 545                 throw new PlatformException("Project Resource "+projectURI+" is not found in the database.");
 546             // Create empty project with no features
 547             try {
 548                 Transaction.startTransaction(session, true);
 549                 try {
 550                     // The project needs to be created mutable.
 551                     session.getService(XSupport.class).setServiceMode(true, false);
 552
 553                     ArrayList<String> empty = new ArrayList<String>();
 554                     projectResource = mgmt.createProject(projectName, empty);
 555                     installProject |= true;
 556
 557                     session.getService(XSupport.class).setServiceMode(false, false);
 558                     Transaction.commit();
 559                 } finally {
 560                     Transaction.endTransaction();
 561                 }
 562                 //session.getService( LifecycleSupport.class ).save();
 563             } catch (DatabaseException e) {
 564                 throw new PlatformException("Failed to create "+projectURI, e);
 565             }
 566         } catch (DatabaseException e) {
 567             throw new PlatformException("Failed to create "+projectURI, e);
 568         }
 569         monitor.worked(10);
 570
 571         return installProject;
 572
 573     }
 574
 575     public void updateInstalledGroups(IProgressMonitor progressMonitor, boolean installProject) throws PlatformException {
 576
 577         if (installProject)
 578         {
 579             // Attach all feature groups available in platform to created project
 580             progressMonitor.setTaskName("Install all features");
 581             Set<GroupReference> publishedFeatureGroups = ProjectFeatures.getInstallGroupsOfPublishedFeatures();
 582             Collection<GroupReference> groupsWithoutVersion = GroupReference.stripVersions(publishedFeatureGroups);
 583
 584             try {
 585                 session.syncRequest(
 586                         (Write) graph ->
 587                         Projects.setProjectInstalledGroups(graph, projectResource, groupsWithoutVersion));
 588             } catch (DatabaseException ae) {
 589                 throw new PlatformException("Failed to install features", ae);
 590             }
 591             progressMonitor.worked(10);
 592         }
 593
 594     }
 595
 596     public void assertSessionModel(IProgressMonitor progressMonitor) throws PlatformException {
 597
 598         Properties properties = session.getService(Properties.class);
 599         final String clientId = properties.getProperty("clientId");
 600
 601         try {
 602
 603             // Currently this needs to be done before data becomes available
 604             VirtualGraphSupport support = session.getService(VirtualGraphSupport.class);
 605             VirtualGraph activations = support.getWorkspacePersistent("activations");
 606
 607             Resource sessionModel = session.syncRequest(new Read<Resource>() {
 608
 609                 @Override
 610                 public Resource perform(ReadGraph graph) throws DatabaseException {
 611
 612                     Layer0X L0X = Layer0X.getInstance(graph);
 613                     for(Resource sessionModel : graph.syncRequest(new ObjectsWithType(graph.getRootLibrary(), L0X.HasSession, L0X.Session))) {
 614                         String id = graph.getPossibleRelatedValue(sessionModel, L0X.Session_HasClientId);
 615                         if(id != null && id.equals(clientId)) return sessionModel;
 616                     }
 617                     return null;
 618
 619                 }
 620
 621             });
 622
 623             if(sessionModel == null) {
 624
 625                 sessionModel = session.syncRequest(new WriteResultRequest<Resource>(activations) {
 626
 627                     @Override
 628                     public Resource perform(WriteGraph graph) throws DatabaseException {
 629                         Layer0 L0 = Layer0.getInstance(graph);
 630                         Layer0X L0X = Layer0X.getInstance(graph);
 631                         Resource session = graph.newResource();
 632                         graph.claim(session, L0.InstanceOf, null, L0X.Session);
 633                         graph.claim(session, L0X.Session_HasUser, null, graph.getResource("http://Users/AdminUser"));
 634                         graph.addLiteral(session, L0X.Session_HasClientId, L0X.Session_HasClientId_Inverse, clientId, Bindings.STRING);
 635                         graph.claim(graph.getRootLibrary(), L0X.HasSession, session);
 636                         return session;
 637                     }
 638                 });
 639
 640             }
 641
 642             session.registerService(SessionModel.class, new PlatformSessionModel(sessionModel));
 643         } catch (DatabaseException e) {
 644             throw new PlatformException(e);
 645         }
 646
 647     }
 648
 649     static class PlatformSessionModel implements SessionModel {
 650         private final Resource sessionModel;
 651
 652         public PlatformSessionModel(Resource model) {
 653             this.sessionModel = model;
 654         }
 655
 656         @Override
 657         public Resource getResource() {
 658             return sessionModel;
 659         }
 660     }
 661
 662     public void resetDatabase(IProgressMonitor monitor) throws PlatformException {
 663         File dbLocation = Platform.getLocation().append("db").toFile();
 664         if(!dbLocation.exists()) return;
 665         try { // Load driver
 666             Driver driver = Manager.getDriver("procore");
 667             Management management = driver.getManagement(dbLocation.getAbsolutePath(), null);
 668             management.delete();
 669         } catch (DatabaseException e) {
 670             throw new PlatformException("Failed to remove database at " + dbLocation.getAbsolutePath(), e);
 671         }
 672         // We have created extra files to database folder which have to be deleted also.
 673         // This is an awful idea! Do not create extra files to database folder!
 674         Throwable t = null;
 675         for (int i=0; i<10; ++i) {
 676             try {
 677                 FileUtils.deleteAll(dbLocation);
 678                 t = null;
 679                 break;
 680             } catch (IOException e) {
 681                 // Assuming this has been thrown because delete file/folder failed.
 682                 t = e;
 683             }
 684             try {
 685                 Thread.sleep(200);
 686             } catch (InterruptedException e) {
 687                 // Ignoring interrupted exception.
 688             }
 689         }
 690         if (null != t)
 691             throw new PlatformException("Failed to remove database folder at " + dbLocation.getAbsolutePath(), t);
 692     }
 693     public void resetWorkspace(IProgressMonitor monitor, ArrayList<String> fileFilter) throws PlatformException, IllegalStateException, IOException {
 694         File file = Platform.getLocation().toFile();
 695         if (null != fileFilter)
 696             FileUtils.deleteAllWithFilter(file , fileFilter);
 697         resetDatabase(monitor);
 698     }
 699
 700     private static Path tryGetInstallLocation() {
 701         Location l = Platform.getInstallLocation();
 702         return l == null ? null : new File(l.getURL().getPath()).toPath();
 703     }
 704
 705     private Path resolveBaselineFile() throws PlatformException {
 706         String dbBaselineArchive = System.getProperty("org.simantics.db.baseline", null);
 707         if (dbBaselineArchive == null)
 708             return null;
 709
 710         Path baseline = Paths.get(dbBaselineArchive);
 711         if (baseline.isAbsolute()) {
 712             if (!Files.isRegularFile(baseline))
 713                 throw new PlatformException("Specified database baseline archive " + baseline
 714                         + " does not exist. Cannot initialize workspace database from baseline.");
 715             return baseline;
 716         }
 717
 718         // Relative path resolution order:
 719         // 1. from the platform "install location"
 720         // 2. from working directory
 721         Path installLocation = tryGetInstallLocation();
 722         if (installLocation != null) {
 723             Path installedBaseline = installLocation.resolve(dbBaselineArchive);
 724             if (Files.isRegularFile(installedBaseline))
 725                 return installedBaseline;
 726         }
 727         if (!Files.isRegularFile(baseline))
 728             throw new PlatformException("Specified database baseline archive " + baseline
 729                     + " does not exist in either the install location (" + installLocation
 730                     + ") or the working directory (" + Paths.get(".").toAbsolutePath()
 731                     + "). Cannot initialize workspace database.");
 732         return null;
 733     }
 734
 735     private boolean handleBaselineDatabase() throws PlatformException {
 736         Path workspaceLocation = Platform.getLocation().toFile().toPath();
 737         Path baselineIndicatorFile = workspaceLocation.resolve(".baselined");
 738         if (Files.isRegularFile(baselineIndicatorFile)) {
 739             // This means that the workspace has already been initialized from
 740             // a database baseline and further initialization is not necessary.
 741             return true;
 742         }
 743
 744         Path baseline = resolveBaselineFile();
 745         if (baseline == null)
 746             return false;
 747
 748         DatabaseBaselines.validateBaselineFile(baseline);
 749         DatabaseBaselines.validateWorkspaceForBaselineInitialization(workspaceLocation);
 750         DatabaseBaselines.initializeWorkspaceWithBaseline(baseline, workspaceLocation, baselineIndicatorFile);
 751         return true;
 752     }
 753
 754     /**
 755      * Start-up the platform. The procedure consists of 8 steps. Once everything
 756      * is up and running, all fields are set property.
 757      * <p>
 758      *
 759      * If workspacePolicy is FixErrors, there is an attempt to fix unexpected
 760      * errors. It includes installing database files, installing ontologies, and
 761      * installing project features.
 762      * <p>
 763      *
 764      * In Simantics Workbench this is handled in
 765      * <code>SimanticsWorkbenchAdvisor#openWindows()</code>.
 766      * <p>
 767      *
 768      * If remote server is given, simantics plaform takes connection there
 769      * instead of local server at "db/".
 770      *
 771      * @param workspacePolicy action to take on workspace/database related
 772      *        errors
 773      * @param ontologyPolicy action to take on ontology mismatch
 774      * @param progressMonitor optional progress monitor
 775      * @param userAgent interface for resorting to user feedback during platform
 776      *        startup or <code>null</code> to resort to default measures
 777      * @throws PlatformException
 778      */
 779     public synchronized SessionContext startUp(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy,
 780             OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize, PlatformUserAgent userAgent)
 781     throws PlatformException
 782     {
 783
 784         assert(!running);
 785         TimeLogger.log("Beginning of SimanticsPlatform.startUp");
 786
 787         LOGGER.info("Beginning of SimanticsPlatform.startUp");
 788
 789         SubMonitor monitor = SubMonitor.convert(progressMonitor, 1000);
 790
 791         // For debugging on what kind of platform automatic tests are running in
 792         // case there are problems.
 793         if ("true".equals(System.getProperty("org.simantics.dumpBundleState")))
 794             dumpPlatformBundleState();
 795
 796         // 0. Consult all startup extensions before doing anything with the workspace.
 797         StartupExtensions.consultStartupExtensions();
 798         TimeLogger.log("Consulted platform pre-startup extensions");
 799
 800         // 0.1. Clear all temporary files
 801         Simantics.clearTemporaryDirectory();
 802         TimeLogger.log("Cleared temporary directory");
 803
 804         // 0.2 Clear VariableRepository.repository static map which holds references to SessionImplDb
 805         VariableRepository.clear();
 806
 807         // 0.3 Handle baseline database before opening db
 808         @SuppressWarnings("unused")
 809         boolean usingBaseline = handleBaselineDatabase();
 810
 811         // 1. Assert there is a database at <workspace>/db
 812         SessionDescriptor sessionDescriptor = setupDatabase(databaseDriverId, monitor.newChild(200, SubMonitor.SUPPRESS_NONE), workspacePolicy, userAgent);
 813         session = sessionDescriptor.getSession();
 814         TimeLogger.log("Database setup complete");
 815
 816         // 2. Delete all indexes if we cannot be certain they are up-to-date
 817         //    A full index rebuild will be done later, before project activation.
 818         XSupport support = session.getService(XSupport.class);
 819         if (support.rolledback()) {
 820             try {
 821                 DatabaseIndexing.deleteAllIndexes();
 822             } catch (IOException e) {
 823                 throw new PlatformException(e);
 824             }
 825         }
 826
 827         // 3. Assert all graphs, and correct versions, are installed to the database
 828         synchronizeOntologies(monitor.newChild(400, SubMonitor.SUPPRESS_NONE), ontologyPolicy, requireSynchronize);
 829         TimeLogger.log("Synchronized ontologies");
 830
 831         // 4. Assert simantics.cfg exists
 832         boolean installProject = assertConfiguration(monitor.newChild(25, SubMonitor.SUPPRESS_NONE),workspacePolicy);
 833
 834         // 5. Assert Project Resource is installed in the database
 835         installProject = assertProject(monitor.newChild(25, SubMonitor.SUPPRESS_NONE), workspacePolicy, installProject);
 836
 837         // 6. Install all features into project, if in debug mode
 838         updateInstalledGroups(monitor.newChild(25), true); //installProject);
 839         TimeLogger.log("Installed all features into project");
 840
 841         // 7. Assert L0.Session in database for this session
 842         assertSessionModel(monitor.newChild(25, SubMonitor.SUPPRESS_NONE));
 843
 844         session.getService(XSupport.class).setServiceMode(false, false);
 845
 846         try {
 847             monitor.setTaskName("Flush query cache");
 848             session.syncRequest((Write) graph -> {
 849                 QueryControl qc = graph.getService(QueryControl.class);
 850                 qc.flush(graph);
 851             });
 852             TimeLogger.log("Flushed queries");
 853         } catch (DatabaseException e) {
 854             LOGGER.error("Flushing queries failed.", e);
 855         }
 856         boolean loadProject = true;
 857         try {
 858
 859             monitor.setTaskName("Open database session");
 860                 sessionContext = SimanticsPlatform.INSTANCE.createSessionContext(true);
 861                 // This must be before setSessionContext since some listeners might query this
 862             sessionContext.setHint(SimanticsKeys.KEY_PROJECT, SimanticsPlatform.INSTANCE.projectResource);
 863
 864             Simantics.setSessionContext(sessionContext);
 865
 866             // 1. Put ResourceBinding that throws an exception to General Bindings
 867             simanticsBindings = new SimanticsBindings( null );
 868             Bindings.classBindingFactory.addFactory( simanticsBindings );
 869
 870
 871             // 2. Create session-specific second Binding context (Databoard) and
 872             //    put that to Session as a service
 873             Session session = sessionContext.getSession();
 874             Databoard sessionDataboard = new Databoard();
 875             session.registerService(Databoard.class, sessionDataboard);
 876             simanticsBindings2 = new SimanticsBindings( session );
 877             sessionDataboard.classBindingFactory.addFactory( simanticsBindings2 );
 878
 879             // Register datatype bindings
 880             Bindings.defaultBindingFactory.getRepository().put(RGB.Integer.BINDING.type(), RGB.Integer.BINDING);
 881             Bindings.defaultBindingFactory.getRepository().put(Font.BINDING.type(), Font.BINDING);
 882
 883             if (support.rolledback() || sessionDescriptor.isFreshDatabase()) {
 884                 monitor.setTaskName("Rebuilding all indexes");
 885                 try {
 886                     session.getService(IndexedRelations.class).fullRebuild(monitor.newChild(100), session);
 887                 } catch (IndexException e) {
 888                     LOGGER.error("Failed to re-build all indexes", e);
 889                 }
 890             } else {
 891                 monitor.worked(100);
 892             }
 893
 894             if(loadProject) {
 895                 TimeLogger.log("Load project");
 896                 monitor.setTaskName("Load project");
 897                 project = Projects.loadProject(sessionContext.getSession(), SimanticsPlatform.INSTANCE.projectResource);
 898                 sessionContext.setHint(ProjectKeys.KEY_PROJECT, project);
 899                 monitor.worked(100);
 900                 TimeLogger.log("Loading projects complete");
 901
 902                 monitor.setTaskName("Activate project");
 903                 project.activate();
 904                 monitor.worked(100);
 905                 TimeLogger.log("Project activated");
 906             }
 907
 908         } catch (DatabaseException e) {
 909             LOGGER.error("Platform startup failed.", e);
 910             throw new PlatformException(e);
 911         } catch (ProjectException e) {
 912             boolean hasStackTrace = e.getStackTrace().length > 0;
 913             if (!hasStackTrace)
 914                 throw new PlatformException(e.getMessage(), hasStackTrace);
 915             throw new PlatformException(e, hasStackTrace);
 916         }
 917
 918         running = true;
 919
 920         // #7650: improve shutdown robustness in all applications that use the platform
 921         Runtime.getRuntime().addShutdownHook(shutdownHook);
 922
 923         // Discard database session undo history at this point to prevent
 924         // the user from undoing any initialization operations performed
 925         // by the platform startup.
 926         SimanticsPlatform.INSTANCE.discardSessionUndoHistory();
 927         TimeLogger.log("Discarded session undo history");
 928
 929         return sessionContext;
 930
 931     }
 932
 933     public SessionContext createSessionContext(boolean init) throws PlatformException {
 934         try {
 935             // Construct and initialize SessionContext from Session.
 936             SessionContext sessionContext = SessionContext.create(session, init);
 937             TimeLogger.log("Session context created");
 938             if (init) {
 939                 sessionContext.registerServices();
 940                 TimeLogger.log("Session services registered");
 941             }
 942             return sessionContext;
 943         } catch (DatabaseException e) {
 944             throw new PlatformException(e);
 945         }
 946     }
 947
 948     /**
 949      * Perform normal shutdown for the Simantics Platform.
 950      *
 951      * @param progressMonitor optional progress monitor
 952      * @throws PlatformException
 953      * @see {@link #shutdown(IProgressMonitor, boolean)}
 954      */
 955     public synchronized void shutdown(IProgressMonitor progressMonitor) throws PlatformException {
 956         shutdown(progressMonitor, true);
 957     }
 958
 959     /**
 960      * Shutdown Simantics Platform.
 961      *
 962      * In Simantics Workbench this is handled in
 963      * <code>SimanticsWorkbenchAdvisor#disconnectFromWorkspace</code>.
 964      *
 965      * @param progressMonitor
 966      *            optional progress monitor
 967      * @param clearTemporaryFiles
 968      *            allow or prevent deletion of temporary files at the end of the
 969      *            shutdown procedure
 970      * @throws PlatformException
 971      */
 972     public synchronized void shutdown(IProgressMonitor progressMonitor, boolean clearTemporaryFiles) throws PlatformException
 973     {
 974         SubMonitor progress = SubMonitor.convert(progressMonitor, 100);
 975         PlatformException platformException = null;
 976         try {
 977             progress.subTask("Close Project");
 978             if (project != null) {
 979                 project.safeDispose();
 980             }
 981             progress.worked(10);
 982
 983             running = false;
 984             progress.subTask("Close Database Session");
 985             Databoard databoard = null;
 986             if (sessionContext != null) {
 987                 Session s = sessionContext.peekSession();
 988                 if (s != null) {
 989                     databoard = s.peekService(Databoard.class);
 990
 991                     progress.subTask("Flushing Index Caches");
 992                     try {
 993                         Simantics.flushIndexCaches(progress.newChild(20), s);
 994                     } catch (Throwable t) {
 995                         LOGGER.error("Failed to flush index caches.", t);
 996                     }
 997                 }
 998
 999                 progress.subTask("Close Database Session");
1000                 sessionContext.safeDispose();
1001                 sessionContext = null;
1002                 Simantics.setSessionContext(null);
1003             }
1004             if (simanticsBindings != null) {
1005                 Bindings.classBindingFactory.removeFactory( simanticsBindings );
1006                 simanticsBindings = null;
1007             }
1008             if (databoard != null) {
1009                 if (simanticsBindings2 != null) {
1010                         databoard.classBindingFactory.removeFactory( simanticsBindings2 );
1011                         simanticsBindings2 = null;
1012                 }
1013                 databoard.clear();
1014             }
1015
1016             // Make sure Simantics clipboard doesn't store unwanted session data references.
1017             Simantics.setClipboard(new SimanticsClipboardImpl());
1018
1019             progress.worked(30);
1020
1021             session = null;
1022             projectResource = null;
1023             currentDatabaseDriver = null;
1024
1025             DependenciesRelation.assertFinishedTracking();
1026
1027         } catch (Exception e) {
1028             platformException = new PlatformException("Failed to shutdown Simantics Platform", e);
1029         }
1030
1031         progress.worked(10);
1032         progress.subTask("Shutting down database");
1033         try {
1034             if (null != databasebManagement)
1035                 databasebManagement.shutdown();
1036         } catch (Throwable t) {
1037             LOGGER.error("Database shutdown failed.", t);
1038         }
1039         progress.worked(10);
1040
1041         if (clearTemporaryFiles) {
1042             progress.subTask("Clearing Workspace Temporary Directory");
1043             try {
1044                 Simantics.clearTemporaryDirectory();
1045             } catch (Throwable t) {
1046                 LOGGER.error("Failed to clear the temporary directory.", t);
1047             }
1048         }
1049         progress.worked(10);
1050         if (null != platformException)
1051             throw platformException;
1052
1053         // #7650: improve shutdown robustness in all applications that use the platform
1054         Runtime.getRuntime().removeShutdownHook(shutdownHook);
1055     }
1056
1057     // TODO: consider removing this in the future ??
1058     @Override
1059     public void stateChanged(LifecycleState newState) {
1060         if(newState == LifecycleState.CLOSED) {
1061             if(running) {
1062                 if(Platform.isRunning()) {
1063                     mainThread.interrupt();
1064                 }
1065             }
1066         }
1067     }
1068
1069     /**
1070      * @return <code>true</code> if discard was successful, <code>false</code>
1071      *         if there was no session, {@link UndoRedoSupport} or
1072      *         {@link UndoContext} to discard through
1073      */
1074     public boolean discardSessionUndoHistory() {
1075         Session s = session;
1076         if (s != null) {
1077             UndoRedoSupport urs = s.peekService(UndoRedoSupport.class);
1078             if (urs != null) {
1079                 UndoContext uc = urs.getUndoContext(s);
1080                 if (uc != null) {
1081                     uc.clear();
1082                     return true;
1083                 }
1084             }
1085         }
1086         return false;
1087     }
1088
1089     public void reconnect(String databaseDriverId) throws Exception {
1090         // Starts database server.
1091         if (currentDatabaseDriver != null)
1092             databaseDriverId = currentDatabaseDriver;
1093         SimanticsPlatform.INSTANCE.startUp(databaseDriverId, null, RecoveryPolicy.ThrowError, OntologyRecoveryPolicy.ThrowError, true, null);
1094     }
1095
1096     private void dumpPlatformBundleState() {
1097         BundleDescription[] bs = Platform.getPlatformAdmin().getState().getBundles();
1098         System.out.println("Total bundles: " + bs.length);
1099         for (BundleDescription b : bs) {
1100             System.out.format("%-80s @ %s\n", b.toString(), b.getLocation());
1101         }
1102     }
1103
1104     private Ini loadOrCreateDatabaseIni(Path path, String databaseDriverId)
1105             throws InvalidFileFormatException, IOException
1106     {
1107         File f = path.toFile();
1108         Ini dbIni = Files.isRegularFile(path) ? new Ini(f) : new Ini();
1109         String iniId = dbIni != null ? dbIni.get("driver", "id") : null;
1110         if (iniId == null) {
1111             dbIni.put("driver", "id", databaseDriverId);
1112             dbIni.store(f);
1113         }
1114         return dbIni;
1115     }
1116
1117 }