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.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.indexing.DatabaseIndexing;
  68 import org.simantics.db.layer0.genericrelation.DependenciesRelation;
  69 import org.simantics.db.layer0.genericrelation.IndexException;
  70 import org.simantics.db.layer0.genericrelation.IndexedRelations;
  71 import org.simantics.db.layer0.request.PossibleResource;
  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
 190     public Thread mainThread;
 191
 192     private Thread shutdownHook = new Thread() {
 193         @Override
 194         public void run() {
 195             try {
 196                 LOGGER.warn("Simantics platform was not properly shut down. Executing safety shutdown hook.");
 197                 shutdown(null, false);
 198             } catch (PlatformException e) {
 199                 LOGGER.error("Simantics Platform shutdown hook execution failed.", e);
 200                 log.log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Simantics Platform shutdown hook execution failed.", e));
 201             }
 202         }
 203     };
 204
 205     /**
 206      * The {@link IProject} activated by
 207      * {@link #startUp(IProgressMonitor, RecoveryPolicy, OntologyRecoveryPolicy, ServerAddress, PlatformUserAgent)}
 208      */
 209     private IProject project;
 210
 211     protected ILog log;
 212
 213     /**
 214      * Create a new simantics plaform manager in uninitialized state and
 215      * with default policies. <p>
 216      */
 217     public SimanticsPlatform() {
 218         log = Platform.getLog(Activator.getBundleContext().getBundle());
 219         mainThread = Thread.currentThread();
 220     }
 221
 222     public String getApplicationClientId() {
 223         IProduct product = Platform.getProduct();
 224         if(product == null) return "noProduct";//UUID.randomUUID().toString();
 225         String application = product.getApplication();
 226         return application != null ? application : UUID.randomUUID().toString();
 227     }
 228
 229     private SessionDescriptor setupDatabase(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, PlatformUserAgent userAgent) throws PlatformException {
 230         if (progressMonitor == null)
 231             progressMonitor = new NullProgressMonitor();
 232         Path workspaceLocation = Platform.getLocation().toFile().toPath();
 233         Path dbLocation = workspaceLocation.resolve("db");
 234         Path dbIniPath = workspaceLocation.resolve("db.ini");
 235         // The driver file overrides any command line arguments to prevent
 236         // using the wrong driver for an existing database directory.
 237         ServerManager serverManager;
 238         try {
 239             Ini dbIni = loadOrCreateDatabaseIni(dbIniPath, databaseDriverId);
 240             databaseDriverId = dbIni.get("driver", "id");
 241             serverManager = ServerManagerFactory.create(databaseDriverId, dbLocation.toAbsolutePath().toString());
 242         } catch (DatabaseException | IOException e) {
 243             throw new PlatformException("Failed to initialize database ServerManager with driver " + databaseDriverId, e);
 244         }
 245         progressMonitor.beginTask("Setting up Simantics Database", 100);
 246         progressMonitor.setTaskName("Asserting Database is installed.");
 247         String msg = "Failed to initialize Simantics database.";
 248         try {
 249             // Create database
 250             log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Initializing database at " + dbLocation + " with driver " + databaseDriverId));
 251             progressMonitor.setTaskName("Creating database at " + dbLocation);
 252             databasebManagement = serverManager.getManagement(dbLocation.toFile());
 253             databasebManagement.create();
 254             currentDatabaseDriver = databaseDriverId;
 255             // Create layer0.
 256             return serverManager.createDatabase(dbLocation.toFile());
 257         } catch (DatabaseException e) {
 258             throw new PlatformException(msg, e);
 259         } catch (Throwable e) {
 260             throw new PlatformException(msg, e);
 261         } finally {
 262             progressMonitor.worked(20);
 263         }
 264     }
 265
 266     public void synchronizeOntologies(IProgressMonitor progressMonitor, OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize) throws PlatformException {
 267
 268         SubMonitor monitor = SubMonitor.convert(progressMonitor, 100);
 269
 270         monitor.setTaskName("Compile dynamic ontologies");
 271         PlatformUtil.compileAllDynamicOntologies();
 272
 273         String message = "Asserting all ontologies are installed";
 274         LOGGER.info(message);
 275         monitor.setTaskName(message);
 276
 277         DatabaseManagement mgmt = new DatabaseManagement();
 278         Map<GraphBundleRef, GraphBundleEx> platformTGs = new HashMap<>();
 279         try {
 280
 281             // Get a list of bundles installed into the database
 282             message = "find installed bundles from database";
 283             monitor.subTask(message);
 284             LOGGER.info(message);
 285             Map<GraphBundleRef, GraphBundleEx> installedTGs = new HashMap<>();
 286             for (GraphBundle b : session.syncRequest( mgmt.GraphBundleQuery )) {
 287                 installedTGs.put(GraphBundleRef.of(b), GraphBundleEx.extend(b));
 288             }
 289
 290             if(!requireSynchronize && installedTGs.size() > 1 && !Platform.inDevelopmentMode()) return;
 291 //            if(installedTGs.size() > 1) return;
 292
 293             // Get a list of all bundles in the platform (Bundle Context)
 294             message = "load all transferable graphs from platform";
 295             monitor.subTask(message);
 296             LOGGER.info(message);
 297             Collection<GraphBundle> tgs = PlatformUtil.getAllGraphs();
 298             message = "extend bundles to compile versions";
 299             monitor.subTask(message);
 300             LOGGER.info(message);
 301             for (GraphBundle b : tgs) {
 302                 GraphBundleEx gbe = GraphBundleEx.extend(b);
 303                 gbe.build();
 304                 platformTGs.put(GraphBundleRef.of(b), gbe);
 305             }
 306
 307             // Compile a list of TGs that need to be installed or reinstalled in the database
 308             message = "check bundle reinstallation demand";
 309             monitor.subTask(message);
 310             LOGGER.info(message);
 311             List<GraphBundleEx> installTGs = new ArrayList<>();
 312             // Create list of TGs to update, <newTg, oldTg>
 313             Map<GraphBundleEx,GraphBundleEx> reinstallTGs = new TreeMap<>();
 314             for (Entry<GraphBundleRef, GraphBundleEx> e : platformTGs.entrySet()) {
 315                 GraphBundleRef key = e.getKey();
 316                 GraphBundleEx platformBundle = e.getValue();
 317                 GraphBundleEx existingBundle = installedTGs.get(key);
 318
 319 //                System.out.println("GraphBundleRef key=" + key.toString());
 320
 321                 if (existingBundle == null) {
 322                     // Bundle did not exist in the database, put it into list of bundles to install
 323                     installTGs.add(platformBundle);
 324                 }
 325                 else {
 326                     // Bundle exists in the database
 327                     boolean platformBundleIsNewer = existingBundle.getVersion().compareTo(platformBundle.getVersion())<0;
 328                     if (!platformBundleIsNewer)
 329                         continue;
 330                     // Check hash of transferable graph to know whether to update or not.
 331                     if (platformBundle.getHashcode() == existingBundle.getHashcode())
 332                         continue;
 333                     //System.out.println("Ontology hashcodes do not match: platform bundle="
 334                     //        + platformBundle.getVersionedId() + ", hash=" + platformBundle.getHashcode()
 335                     //        + "; existing bundle=" + existingBundle.getVersionedId() + ", hash=" + existingBundle.getHashcode());
 336                     reinstallTGs.put(platformBundle, existingBundle);
 337                 }
 338             }
 339             // INSTALL
 340             // Database is missing graphs
 341             if (!installTGs.isEmpty() || !reinstallTGs.isEmpty()) {
 342                 session.getService(XSupport.class).setServiceMode(true, true);
 343
 344                 // Throw error
 345                 if (ontologyPolicy == OntologyRecoveryPolicy.ThrowError) {
 346                     StringBuilder sb = new StringBuilder("The following graphs are not installed in the database: ");
 347                     if (!installTGs.isEmpty()) {
 348                         int i = 0;
 349                         for (GraphBundleEx e : installTGs) {
 350                             if (i>0) sb.append(", ");
 351                             i++;
 352                             sb.append(e.toString());
 353                         }
 354                         sb.append(" is missing from the database.\n");
 355                     }
 356                     if (!reinstallTGs.isEmpty()) {
 357                         int i = 0;
 358                         for (Entry<GraphBundleEx, GraphBundleEx> e : reinstallTGs.entrySet()) {
 359                             if (i>0) sb.append(", ");
 360                             i++;
 361                             sb.append(e.getKey().toString());
 362                         }
 363                         sb.append(" Database/Platform Bundle version mismatch.\n");
 364                     }
 365                     sb.append("Hint: Use -fixErrors to install the graphs.");
 366                     throw new PlatformException(sb.toString());
 367                 }
 368                 // Reinstall database
 369                 if (ontologyPolicy == OntologyRecoveryPolicy.ReinstallDatabase) {
 370                     log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Reinstalling the database."));
 371                     // TODO Install DB
 372                     // Stop Session
 373                     // Kill Process
 374                     // Delete Database
 375                     // Create Database
 376                     // Start Database
 377                     // Open Session
 378                     // Install TGs
 379                     throw new PlatformException("Reinstalling Database, NOT IMPLEMENTED");
 380                 }
 381
 382                 if (ontologyPolicy == OntologyRecoveryPolicy.Merge) {
 383                     message = "Merging ontology changes";
 384                     monitor.subTask(message);
 385                     LOGGER.info(message);
 386                     // Sort missing TGs into install order
 387                     GraphDependencyAnalyzer<GraphBundle> analyzer = new GraphDependencyAnalyzer<GraphBundle>();
 388                     for(GraphBundle tg : installTGs) analyzer.addGraph(tg, tg.getGraph());
 389                     for(GraphBundle tg : reinstallTGs.keySet()) analyzer.addGraph(tg, tg.getGraph());
 390                     if(!analyzer.analyzeDependency()) {
 391                         Collection<Pair<GraphBundle, GraphBundle>> problems = analyzer.getConflicts();
 392                         StringBuilder sb = new StringBuilder();
 393                         for (Pair<GraphBundle, GraphBundle> problem : problems) {
 394                             sb.append("Conflict with "+problem.first+" and "+problem.second+".\n");
 395                         }
 396                         throw new PlatformException(sb.toString());
 397                     }
 398                     else if(!session.syncRequest( analyzer.queryExternalDependenciesSatisfied )) {
 399                         Collection<IdentityNode> unsatisfiedDependencies = analyzer.getUnsatisfiedDependencies();
 400                         StringBuilder sb = new StringBuilder();
 401                         for (IdentityNode dep: unsatisfiedDependencies) {
 402                             sb.append("Unsatisfied Dependency "+dep+". Required by\n");
 403                             for(IU iu : GraphDependencyAnalyzer.toCollection(dep.getRequires())) {
 404                                 sb.append("    " + ((GraphBundle)iu.getId()).getId() + "\n");
 405                             }
 406                         }
 407                         throw new PlatformException(sb.toString());
 408                     }
 409
 410                     List<GraphBundle> sortedBundles = analyzer.getSortedGraphs();
 411                     if(!sortedBundles.isEmpty()) {
 412
 413                         session.syncRequest((Write) graph -> {
 414                             try {
 415                                 graph.newClusterSet(graph.getRootLibrary());
 416                             } catch (ClusterSetExistException e) {
 417                                 // Cluster set exist already, no problem.
 418                             }
 419                             graph.setClusterSet4NewResource(graph.getRootLibrary());
 420                             graph.flushCluster();
 421                         });
 422
 423                         boolean mergedOntologies = false;
 424
 425                         // Install TGs
 426                         for(final GraphBundle tg : sortedBundles) {
 427
 428                                 final IImportAdvisor advisor = new OntologyImportAdvisor(tg, mgmt);
 429                                 final GraphBundle oldTG = reinstallTGs.get(tg);
 430
 431                                 boolean createImmutable = tg.getImmutable();
 432
 433                                 if (oldTG==null) {
 434
 435                                 session.getService(XSupport.class).setServiceMode(true, createImmutable);
 436
 437                                         // Install TG
 438                                         log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Installing "+tg.toString()+" - "+tg.getName()));
 439                                         ImportResult result = TransferableGraphs.importGraph1(session, new TGTransferableGraphSource(tg.getGraph()), advisor, null);
 440                                         if (!result.missingExternals.isEmpty()) {
 441                                                 log.log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Import of " + tg.toString() + " was missing the following external entities:\n" + EString.implode(result.missingExternals)));
 442                                         }
 443                                 } else {
 444                                         if(!createImmutable)
 445                                                 continue;
 446
 447                                         // Merge TG
 448                                         startTransaction(session, false);
 449                                         TransferableGraphDelta1 delta = new Diff(oldTG.getGraph(), tg.getGraph()).diff();
 450                                         final long[] oldResources = oldTG.getResourceArray();
 451                                         boolean changes = TransferableGraphs.hasChanges(readGraph(), oldResources, delta);
 452                                         endTransaction();
 453                                         if (!changes) {
 454                                             //log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Nothing to merge for "+tg.toString()));
 455                                             continue;
 456                                         }
 457
 458                                 log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Merging new version of "+tg.toString()));
 459
 460                                         startTransaction(session, true);
 461
 462                                         //delta.print();
 463                                         try {
 464                                                 long[] resourceArray = TransferableGraphs.applyDelta(writeGraph(), oldResources, delta);
 465                                                 tg.setResourceArray(resourceArray);
 466                                                 mgmt.setGraphBundleEntry(tg);
 467                                                 commit();
 468                                                 mergedOntologies = true;
 469                                         } catch (Throwable t) {
 470                                                 throw new PlatformException(t);
 471                                         } finally {
 472                                                 endTransaction();
 473                                         }
 474                                 }
 475                         }
 476
 477                         session.syncRequest((Write) graph -> {
 478                             graph.setClusterSet4NewResource(graph.getRootLibrary());
 479                             graph.flushCluster();
 480                         });
 481
 482                         if (mergedOntologies)
 483                             DatabaseIndexing.deleteAllIndexes();
 484                     }
 485                 }
 486                 session.getService(XSupport.class).setServiceMode(false, false);
 487             }
 488             monitor.worked(100);
 489         } catch (IOException e) {
 490             throw new PlatformException(e);
 491         } catch (DatabaseException e) {
 492             throw new PlatformException(e);
 493         }
 494
 495     }
 496
 497     public boolean assertConfiguration(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy) throws PlatformException {
 498
 499         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 500
 501         File workspaceLocation = Platform.getLocation().toFile();
 502
 503         boolean installProject = false;
 504         progressMonitor.setTaskName("Asserting simantics.cfg is installed");
 505         try {
 506             File propertyFile = new File(workspaceLocation, "simantics.cfg");
 507             Properties properties;
 508             try {
 509                 properties = WorkspaceUtil.readProperties(propertyFile);
 510             } catch (IOException e) {
 511                 if (workspacePolicy == RecoveryPolicy.ThrowError) throw new PlatformException("Could not load "+propertyFile);
 512
 513                 // Create a project and write Property file
 514                 properties = new Properties();
 515                 properties.setProperty("project_uri", "http://Projects/Development%20Project");
 516                 properties.setProperty("project_name", "Development Project");
 517                 WorkspaceUtil.writeProperties(propertyFile, properties);
 518                 installProject |= true;
 519             }
 520             projectURI = properties.getProperty("project_uri");
 521             projectName = properties.getProperty("project_name");
 522             progressMonitor.worked(10);
 523         } catch (IOException e) {
 524             throw new PlatformException(e);
 525         }
 526
 527         return installProject;
 528
 529     }
 530
 531     public boolean assertProject(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, boolean installProject) throws PlatformException {
 532
 533         SubMonitor monitor = SubMonitor.convert(progressMonitor, 10);
 534
 535         final DatabaseManagement mgmt = new DatabaseManagement();
 536
 537         monitor.setTaskName("Asserting project resource exists in the database");
 538         try {
 539             projectResource = session.syncRequest(new PossibleResource(projectURI));
 540             if (projectResource == null) {
 541                 // Project was not found
 542                 if (workspacePolicy == RecoveryPolicy.ThrowError)
 543                     throw new PlatformException("Project Resource "+projectURI+" is not found in the database.");
 544                 // Create empty project with no features
 545                 try {
 546                     Transaction.startTransaction(session, true);
 547                     try {
 548                         // The project needs to be created mutable.
 549                         session.getService(XSupport.class).setServiceMode(true, false);
 550
 551                         ArrayList<String> empty = new ArrayList<String>();
 552                         projectResource = mgmt.createProject(projectName, empty);
 553                         installProject |= true;
 554
 555                         session.getService(XSupport.class).setServiceMode(false, false);
 556                         Transaction.commit();
 557                     } finally {
 558                         Transaction.endTransaction();
 559                     }
 560                     //session.getService( LifecycleSupport.class ).save();
 561                 } catch (DatabaseException e) {
 562                     throw new PlatformException("Failed to create "+projectURI, e);
 563                 }
 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     private static Path tryGetInstallLocation() {
 700         Location l = Platform.getInstallLocation();
 701         return l == null ? null : new File(l.getURL().getPath()).toPath();
 702     }
 703
 704     private Path resolveBaselineFile() throws PlatformException {
 705         String dbBaselineArchive = System.getProperty("org.simantics.db.baseline", null);
 706         if (dbBaselineArchive == null)
 707             return null;
 708
 709         Path baseline = Paths.get(dbBaselineArchive);
 710         if (baseline.isAbsolute()) {
 711             if (!Files.isRegularFile(baseline))
 712                 throw new PlatformException("Specified database baseline archive " + baseline
 713                         + " does not exist. Cannot initialize workspace database from baseline.");
 714             return baseline;
 715         }
 716
 717         // Relative path resolution order:
 718         // 1. from the platform "install location"
 719         // 2. from working directory
 720         Path installLocation = tryGetInstallLocation();
 721         if (installLocation != null) {
 722             Path installedBaseline = installLocation.resolve(dbBaselineArchive);
 723             if (Files.isRegularFile(installedBaseline))
 724                 return installedBaseline;
 725         }
 726         if (!Files.isRegularFile(baseline))
 727             throw new PlatformException("Specified database baseline archive " + baseline
 728                     + " does not exist in either the install location (" + installLocation
 729                     + ") or the working directory (" + Paths.get(".").toAbsolutePath()
 730                     + "). Cannot initialize workspace database.");
 731         return null;
 732     }
 733
 734     private boolean handleBaselineDatabase() throws PlatformException {
 735         Path workspaceLocation = Platform.getLocation().toFile().toPath();
 736         Path baselineIndicatorFile = workspaceLocation.resolve(".baselined");
 737         if (Files.isRegularFile(baselineIndicatorFile)) {
 738             // This means that the workspace has already been initialized from
 739             // a database baseline and further initialization is not necessary.
 740             return true;
 741         }
 742
 743         Path baseline = resolveBaselineFile();
 744         if (baseline == null)
 745             return false;
 746
 747         DatabaseBaselines.validateBaselineFile(baseline);
 748         DatabaseBaselines.validateWorkspaceForBaselineInitialization(workspaceLocation);
 749         DatabaseBaselines.initializeWorkspaceWithBaseline(baseline, workspaceLocation, baselineIndicatorFile);
 750         return true;
 751     }
 752
 753     /**
 754      * Start-up the platform. The procedure consists of 8 steps. Once everything
 755      * is up and running, all fields are set property.
 756      * <p>
 757      *
 758      * If workspacePolicy is FixErrors, there is an attempt to fix unexpected
 759      * errors. It includes installing database files, installing ontologies, and
 760      * installing project features.
 761      * <p>
 762      *
 763      * In Simantics Workbench this is handled in
 764      * <code>SimanticsWorkbenchAdvisor#openWindows()</code>.
 765      * <p>
 766      *
 767      * If remote server is given, simantics plaform takes connection there
 768      * instead of local server at "db/".
 769      *
 770      * @param workspacePolicy action to take on workspace/database related
 771      *        errors
 772      * @param ontologyPolicy action to take on ontology mismatch
 773      * @param progressMonitor optional progress monitor
 774      * @param userAgent interface for resorting to user feedback during platform
 775      *        startup or <code>null</code> to resort to default measures
 776      * @throws PlatformException
 777      */
 778     public synchronized SessionContext startUp(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy,
 779             OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize, PlatformUserAgent userAgent)
 780     throws PlatformException
 781     {
 782
 783         assert(!running);
 784         TimeLogger.log("Beginning of SimanticsPlatform.startUp");
 785
 786         LOGGER.info("Beginning of SimanticsPlatform.startUp");
 787
 788         SubMonitor monitor = SubMonitor.convert(progressMonitor, 1000);
 789
 790         // For debugging on what kind of platform automatic tests are running in
 791         // case there are problems.
 792         if ("true".equals(System.getProperty("org.simantics.dumpBundleState")))
 793             dumpPlatformBundleState();
 794
 795         // 0. Consult all startup extensions before doing anything with the workspace.
 796         StartupExtensions.consultStartupExtensions();
 797         TimeLogger.log("Consulted platform pre-startup extensions");
 798
 799         // 0.1. Clear all temporary files
 800         Simantics.clearTemporaryDirectory();
 801         TimeLogger.log("Cleared temporary directory");
 802
 803         // 0.2 Clear VariableRepository.repository static map which holds references to SessionImplDb
 804         VariableRepository.clear();
 805
 806         // 0.3 Handle baseline database before opening db
 807         @SuppressWarnings("unused")
 808         boolean usingBaseline = handleBaselineDatabase();
 809
 810         // 1. Assert there is a database at <workspace>/db
 811         SessionDescriptor sessionDescriptor = setupDatabase(databaseDriverId, monitor.newChild(200, SubMonitor.SUPPRESS_NONE), workspacePolicy, userAgent);
 812         session = sessionDescriptor.getSession();
 813         TimeLogger.log("Database setup complete");
 814
 815         // 2. Delete all indexes if we cannot be certain they are up-to-date
 816         //    A full index rebuild will be done later, before project activation.
 817         XSupport support = session.getService(XSupport.class);
 818         if (support.rolledback()) {
 819             try {
 820                 DatabaseIndexing.deleteAllIndexes();
 821             } catch (IOException e) {
 822                 throw new PlatformException(e);
 823             }
 824         }
 825
 826         // 3. Assert all graphs, and correct versions, are installed to the database
 827         synchronizeOntologies(monitor.newChild(400, SubMonitor.SUPPRESS_NONE), ontologyPolicy, requireSynchronize);
 828         TimeLogger.log("Synchronized ontologies");
 829
 830         // 4. Assert simantics.cfg exists
 831         boolean installProject = assertConfiguration(monitor.newChild(25, SubMonitor.SUPPRESS_NONE),workspacePolicy);
 832
 833         // 5. Assert Project Resource is installed in the database
 834         installProject = assertProject(monitor.newChild(25, SubMonitor.SUPPRESS_NONE), workspacePolicy, installProject);
 835
 836         // 6. Install all features into project, if in debug mode
 837         updateInstalledGroups(monitor.newChild(25), true); //installProject);
 838         TimeLogger.log("Installed all features into project");
 839
 840         // 7. Assert L0.Session in database for this session
 841         assertSessionModel(monitor.newChild(25, SubMonitor.SUPPRESS_NONE));
 842
 843         session.getService(XSupport.class).setServiceMode(false, false);
 844
 845         try {
 846             monitor.setTaskName("Flush query cache");
 847             session.syncRequest((Write) graph -> {
 848                 QueryControl qc = graph.getService(QueryControl.class);
 849                 qc.flush(graph);
 850             });
 851             TimeLogger.log("Flushed queries");
 852         } catch (DatabaseException e) {
 853             LOGGER.error("Flushing queries failed.", e);
 854         }
 855         boolean loadProject = true;
 856         try {
 857
 858             monitor.setTaskName("Open database session");
 859                 sessionContext = SimanticsPlatform.INSTANCE.createSessionContext(true);
 860                 // This must be before setSessionContext since some listeners might query this
 861             sessionContext.setHint(SimanticsKeys.KEY_PROJECT, SimanticsPlatform.INSTANCE.projectResource);
 862
 863             Simantics.setSessionContext(sessionContext);
 864
 865             // 1. Put ResourceBinding that throws an exception to General Bindings
 866             simanticsBindings = new SimanticsBindings();
 867             Bindings.classBindingFactory.addFactory( simanticsBindings );
 868
 869             Session session = sessionContext.getSession();
 870             session.registerService(Databoard.class, Bindings.databoard);
 871
 872             // Register datatype bindings
 873             Bindings.defaultBindingFactory.getRepository().put(RGB.Integer.BINDING.type(), RGB.Integer.BINDING);
 874             Bindings.defaultBindingFactory.getRepository().put(Font.BINDING.type(), Font.BINDING);
 875
 876             if (support.rolledback() || sessionDescriptor.isFreshDatabase()) {
 877                 monitor.setTaskName("Rebuilding all indexes");
 878                 try {
 879                     session.getService(IndexedRelations.class).fullRebuild(monitor.newChild(100), session);
 880                 } catch (IndexException e) {
 881                     LOGGER.error("Failed to re-build all indexes", e);
 882                 }
 883             } else {
 884                 monitor.worked(100);
 885             }
 886
 887             if(loadProject) {
 888                 TimeLogger.log("Load project");
 889                 monitor.setTaskName("Load project");
 890                 project = Projects.loadProject(sessionContext.getSession(), SimanticsPlatform.INSTANCE.projectResource);
 891                 sessionContext.setHint(ProjectKeys.KEY_PROJECT, project);
 892                 monitor.worked(100);
 893                 TimeLogger.log("Loading projects complete");
 894
 895                 monitor.setTaskName("Activate project");
 896                 project.activate();
 897                 monitor.worked(100);
 898                 TimeLogger.log("Project activated");
 899             }
 900
 901         } catch (DatabaseException e) {
 902             LOGGER.error("Platform startup failed.", e);
 903             throw new PlatformException(e);
 904         } catch (ProjectException e) {
 905             boolean hasStackTrace = e.getStackTrace().length > 0;
 906             if (!hasStackTrace)
 907                 throw new PlatformException(e.getMessage(), hasStackTrace);
 908             throw new PlatformException(e, hasStackTrace);
 909         }
 910
 911         running = true;
 912
 913         // #7650: improve shutdown robustness in all applications that use the platform
 914         Runtime.getRuntime().addShutdownHook(shutdownHook);
 915
 916         // Discard database session undo history at this point to prevent
 917         // the user from undoing any initialization operations performed
 918         // by the platform startup.
 919         SimanticsPlatform.INSTANCE.discardSessionUndoHistory();
 920         TimeLogger.log("Discarded session undo history");
 921
 922         return sessionContext;
 923
 924     }
 925
 926     public SessionContext createSessionContext(boolean init) throws PlatformException {
 927         try {
 928             // Construct and initialize SessionContext from Session.
 929             SessionContext sessionContext = SessionContext.create(session, init);
 930             TimeLogger.log("Session context created");
 931             if (init) {
 932                 sessionContext.registerServices();
 933                 TimeLogger.log("Session services registered");
 934             }
 935             return sessionContext;
 936         } catch (DatabaseException e) {
 937             throw new PlatformException(e);
 938         }
 939     }
 940
 941     /**
 942      * Perform normal shutdown for the Simantics Platform.
 943      *
 944      * @param progressMonitor optional progress monitor
 945      * @throws PlatformException
 946      * @see {@link #shutdown(IProgressMonitor, boolean)}
 947      */
 948     public synchronized void shutdown(IProgressMonitor progressMonitor) throws PlatformException {
 949         shutdown(progressMonitor, true);
 950     }
 951
 952     /**
 953      * Shutdown Simantics Platform.
 954      *
 955      * In Simantics Workbench this is handled in
 956      * <code>SimanticsWorkbenchAdvisor#disconnectFromWorkspace</code>.
 957      *
 958      * @param progressMonitor
 959      *            optional progress monitor
 960      * @param clearTemporaryFiles
 961      *            allow or prevent deletion of temporary files at the end of the
 962      *            shutdown procedure
 963      * @throws PlatformException
 964      */
 965     public synchronized void shutdown(IProgressMonitor progressMonitor, boolean clearTemporaryFiles) throws PlatformException
 966     {
 967         SubMonitor progress = SubMonitor.convert(progressMonitor, 100);
 968         PlatformException platformException = null;
 969         try {
 970             progress.subTask("Close Project");
 971             if (project != null) {
 972                 project.safeDispose();
 973             }
 974             progress.worked(10);
 975
 976             running = false;
 977             progress.subTask("Close Database Session");
 978             if (sessionContext != null) {
 979                 Session s = sessionContext.peekSession();
 980                 if (s != null) {
 981                     progress.subTask("Flushing Index Caches");
 982                     try {
 983                         Simantics.flushIndexCaches(progress.newChild(20), s);
 984                     } catch (Throwable t) {
 985                         LOGGER.error("Failed to flush index caches.", t);
 986                     }
 987                 }
 988
 989                 progress.subTask("Close Database Session");
 990                 sessionContext.safeDispose();
 991                 sessionContext = null;
 992                 Simantics.setSessionContext(null);
 993             }
 994             if (simanticsBindings != null) {
 995                 Bindings.classBindingFactory.removeFactory( simanticsBindings );
 996                 simanticsBindings = null;
 997             }
 998
 999             // Make sure Simantics clipboard doesn't store unwanted session data references.
1000             Simantics.setClipboard(new SimanticsClipboardImpl());
1001
1002             progress.worked(30);
1003
1004             session = null;
1005             projectResource = null;
1006             currentDatabaseDriver = null;
1007
1008             DependenciesRelation.assertFinishedTracking();
1009
1010         } catch (Exception e) {
1011             platformException = new PlatformException("Failed to shutdown Simantics Platform", e);
1012         }
1013
1014         progress.worked(10);
1015         progress.subTask("Shutting down database");
1016         try {
1017             if (null != databasebManagement)
1018                 databasebManagement.shutdown();
1019         } catch (Throwable t) {
1020             LOGGER.error("Database shutdown failed.", t);
1021         }
1022         progress.worked(10);
1023
1024         if (clearTemporaryFiles) {
1025             progress.subTask("Clearing Workspace Temporary Directory");
1026             try {
1027                 Simantics.clearTemporaryDirectory();
1028             } catch (Throwable t) {
1029                 LOGGER.error("Failed to clear the temporary directory.", t);
1030             }
1031         }
1032         progress.worked(10);
1033         if (null != platformException)
1034             throw platformException;
1035
1036         // #7650: improve shutdown robustness in all applications that use the platform
1037         Runtime.getRuntime().removeShutdownHook(shutdownHook);
1038     }
1039
1040     // TODO: consider removing this in the future ??
1041     @Override
1042     public void stateChanged(LifecycleState newState) {
1043         if(newState == LifecycleState.CLOSED) {
1044             if(running) {
1045                 if(Platform.isRunning()) {
1046                     mainThread.interrupt();
1047                 }
1048             }
1049         }
1050     }
1051
1052     /**
1053      * @return <code>true</code> if discard was successful, <code>false</code>
1054      *         if there was no session, {@link UndoRedoSupport} or
1055      *         {@link UndoContext} to discard through
1056      */
1057     public boolean discardSessionUndoHistory() {
1058         Session s = session;
1059         if (s != null) {
1060             UndoRedoSupport urs = s.peekService(UndoRedoSupport.class);
1061             if (urs != null) {
1062                 UndoContext uc = urs.getUndoContext(s);
1063                 if (uc != null) {
1064                     uc.clear();
1065                     return true;
1066                 }
1067             }
1068         }
1069         return false;
1070     }
1071
1072     public void reconnect(String databaseDriverId) throws Exception {
1073         // Starts database server.
1074         if (currentDatabaseDriver != null)
1075             databaseDriverId = currentDatabaseDriver;
1076         SimanticsPlatform.INSTANCE.startUp(databaseDriverId, null, RecoveryPolicy.ThrowError, OntologyRecoveryPolicy.ThrowError, true, null);
1077     }
1078
1079     private void dumpPlatformBundleState() {
1080         BundleDescription[] bs = Platform.getPlatformAdmin().getState().getBundles();
1081         System.out.println("Total bundles: " + bs.length);
1082         for (BundleDescription b : bs) {
1083             System.out.format("%-80s @ %s\n", b.toString(), b.getLocation());
1084         }
1085     }
1086
1087     private Ini loadOrCreateDatabaseIni(Path path, String databaseDriverId)
1088             throws InvalidFileFormatException, IOException
1089     {
1090         File f = path.toFile();
1091         Ini dbIni = Files.isRegularFile(path) ? new Ini(f) : new Ini();
1092         String iniId = dbIni != null ? dbIni.get("driver", "id") : null;
1093         if (iniId == null) {
1094             dbIni.put("driver", "id", databaseDriverId);
1095             dbIni.store(f);
1096         }
1097         return dbIni;
1098     }
1099
1100 }