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.util.ArrayList;
  25 import java.util.Collection;
  26 import java.util.HashMap;
  27 import java.util.List;
  28 import java.util.Map;
  29 import java.util.Map.Entry;
  30 import java.util.Properties;
  31 import java.util.Set;
  32 import java.util.TreeMap;
  33 import java.util.UUID;
  34
  35 import org.eclipse.core.runtime.ILog;
  36 import org.eclipse.core.runtime.IProduct;
  37 import org.eclipse.core.runtime.IProgressMonitor;
  38 import org.eclipse.core.runtime.IStatus;
  39 import org.eclipse.core.runtime.NullProgressMonitor;
  40 import org.eclipse.core.runtime.Platform;
  41 import org.eclipse.core.runtime.Status;
  42 import org.eclipse.core.runtime.SubMonitor;
  43 import org.eclipse.osgi.service.resolver.BundleDescription;
  44 import org.ini4j.Ini;
  45 import org.ini4j.InvalidFileFormatException;
  46 import org.simantics.databoard.Bindings;
  47 import org.simantics.databoard.Databoard;
  48 import org.simantics.datatypes.literal.Font;
  49 import org.simantics.datatypes.literal.RGB;
  50 import org.simantics.db.Driver;
  51 import org.simantics.db.Driver.Management;
  52 import org.simantics.db.Manager;
  53 import org.simantics.db.ReadGraph;
  54 import org.simantics.db.Resource;
  55 import org.simantics.db.Session;
  56 import org.simantics.db.SessionModel;
  57 import org.simantics.db.UndoContext;
  58 import org.simantics.db.VirtualGraph;
  59 import org.simantics.db.WriteGraph;
  60 import org.simantics.db.common.request.ObjectsWithType;
  61 import org.simantics.db.common.request.Queries;
  62 import org.simantics.db.common.request.WriteRequest;
  63 import org.simantics.db.common.request.WriteResultRequest;
  64 import org.simantics.db.common.utils.Transaction;
  65 import org.simantics.db.exception.ClusterSetExistException;
  66 import org.simantics.db.exception.DatabaseException;
  67 import org.simantics.db.exception.ResourceNotFoundException;
  68 import org.simantics.db.indexing.DatabaseIndexing;
  69 import org.simantics.db.layer0.genericrelation.DependenciesRelation;
  70 import org.simantics.db.layer0.util.SimanticsClipboardImpl;
  71 import org.simantics.db.layer0.util.SimanticsKeys;
  72 import org.simantics.db.layer0.util.TGTransferableGraphSource;
  73 import org.simantics.db.layer0.variable.VariableRepository;
  74 import org.simantics.db.management.SessionContext;
  75 import org.simantics.db.request.Read;
  76 import org.simantics.db.service.LifecycleSupport.LifecycleListener;
  77 import org.simantics.db.service.LifecycleSupport.LifecycleState;
  78 import org.simantics.db.service.QueryControl;
  79 import org.simantics.db.service.UndoRedoSupport;
  80 import org.simantics.db.service.VirtualGraphSupport;
  81 import org.simantics.db.service.XSupport;
  82 import org.simantics.graph.db.GraphDependencyAnalyzer;
  83 import org.simantics.graph.db.GraphDependencyAnalyzer.IU;
  84 import org.simantics.graph.db.GraphDependencyAnalyzer.IdentityNode;
  85 import org.simantics.graph.db.IImportAdvisor;
  86 import org.simantics.graph.db.ImportResult;
  87 import org.simantics.graph.db.TransferableGraphs;
  88 import org.simantics.graph.diff.Diff;
  89 import org.simantics.graph.diff.TransferableGraphDelta1;
  90 import org.simantics.internal.Activator;
  91 import org.simantics.internal.startup.StartupExtensions;
  92 import org.simantics.layer0.Layer0;
  93 import org.simantics.operation.Layer0X;
  94 import org.simantics.project.IProject;
  95 import org.simantics.project.ProjectFeatures;
  96 import org.simantics.project.ProjectKeys;
  97 import org.simantics.project.Projects;
  98 import org.simantics.project.exception.ProjectException;
  99 import org.simantics.project.features.registry.GroupReference;
 100 import org.simantics.project.management.DatabaseManagement;
 101 import org.simantics.project.management.GraphBundle;
 102 import org.simantics.project.management.GraphBundleEx;
 103 import org.simantics.project.management.GraphBundleRef;
 104 import org.simantics.project.management.PlatformUtil;
 105 import org.simantics.project.management.ServerManager;
 106 import org.simantics.project.management.ServerManagerFactory;
 107 import org.simantics.project.management.WorkspaceUtil;
 108 import org.simantics.utils.FileUtils;
 109 import org.simantics.utils.datastructures.Pair;
 110 import org.simantics.utils.logging.TimeLogger;
 111 import org.simantics.utils.strings.EString;
 112 import org.slf4j.Logger;
 113 import org.slf4j.LoggerFactory;
 114
 115 /**
 116  * SimanticsPlatform performs procedures required in order to get simantics
 117  * workbench into operational state. This consists of the following steps:
 118  * <ul>
 119  *     <li> Asserting there is Database
 120  *     </li>
 121  *     <li> Starting Database process
 122  *     </li>
 123  *     <li> Opening a session to Database process
 124  *     </li>
 125  *     <li> Asserting required ontologies or other transferable graphs are installed in the database
 126  *     </li>
 127  *     <li> Asserting required project is installed in the database
 128  *     </li>
 129  *     <li> Asserting Simantics Features are installed in the database
 130  *     </li>
 131  *     <li> Asserting Simantics Features are installed to the project
 132  *     </li>
 133  *     <li> Shutdown: Save Session, Close session, Kill Database process
 134  *     </li>
 135  * </ul>
 136  *
 137  * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
 138  */
 139 public class SimanticsPlatform implements LifecycleListener {
 140
 141     private static final Logger LOGGER = LoggerFactory.getLogger(SimanticsPlatform.class);
 142
 143     /**
 144      * The policy is relevant when developing Simantics from Eclipse IDE.
 145      * It is applied when the ontology in the database of a workspace doesn't match
 146      * a newer ontology in the Eclipse workspace.
 147      */
 148     public static enum OntologyRecoveryPolicy { ThrowError, Merge, ReinstallDatabase }
 149
 150     /**
 151      * This policy dictates how the Simantics platform startup should react if
 152      * the started workspace is not set up properly. The alternatives are to
 153      * just throw an error and fail or to attempt all possible measures to fix
 154      * the encountered problems.
 155      */
 156     public static enum RecoveryPolicy { ThrowError, FixError }
 157
 158     /** Singleton instance, started in SimanticsWorkbenchAdvisor */
 159     public static final SimanticsPlatform INSTANCE = new SimanticsPlatform();
 160
 161     /** Set to true when the Simantics Platform is in good-and-go condition */
 162     public boolean running;
 163
 164     /** ID of the database driver that the platform is currently using */
 165     private String currentDatabaseDriver;
 166
 167     /** Database Session */
 168     public Session session;
 169     private Management databasebManagement;
 170
 171     /** Database session context */
 172     public SessionContext sessionContext;
 173
 174     /** Project identifier in Database */
 175     public String projectURI;
 176
 177     /** Project name */
 178     public String projectName;
 179
 180     /** Project resource */
 181     public Resource projectResource;
 182
 183     /** Session specific bindings */
 184     public SimanticsBindings simanticsBindings;
 185     public SimanticsBindings simanticsBindings2;
 186
 187     public Thread mainThread;
 188
 189     /**
 190      * The {@link IProject} activated by
 191      * {@link #startUp(IProgressMonitor, RecoveryPolicy, OntologyRecoveryPolicy, ServerAddress, PlatformUserAgent)}
 192      */
 193     private IProject project;
 194
 195     protected ILog log;
 196
 197     /**
 198      * Create a new simantics plaform manager in uninitialized state and
 199      * with default policies. <p>
 200      */
 201     public SimanticsPlatform() {
 202         log = Platform.getLog(Activator.getBundleContext().getBundle());
 203         mainThread = Thread.currentThread();
 204     }
 205
 206     public String getApplicationClientId() {
 207         IProduct product = Platform.getProduct();
 208         if(product == null) return "noProduct";//UUID.randomUUID().toString();
 209         String application = product.getApplication();
 210         return application != null ? application : UUID.randomUUID().toString();
 211     }
 212
 213     private Session setupDatabase(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, PlatformUserAgent userAgent) throws PlatformException {
 214         if (progressMonitor == null)
 215             progressMonitor = new NullProgressMonitor();
 216         Path workspaceLocation = Platform.getLocation().toFile().toPath();
 217         Path dbLocation = workspaceLocation.resolve("db");
 218         Path dbIniPath = workspaceLocation.resolve("db.ini");
 219         // The driver file overrides any command line arguments to prevent
 220         // using the wrong driver for an existing database directory.
 221         ServerManager serverManager;
 222         try {
 223             Ini dbIni = loadOrCreateDatabaseIni(dbIniPath, databaseDriverId);
 224             databaseDriverId = dbIni.get("driver", "id");
 225             serverManager = ServerManagerFactory.create(databaseDriverId, dbLocation.toAbsolutePath().toString());
 226         } catch (DatabaseException | IOException e) {
 227             throw new PlatformException("Failed to initialize database ServerManager with driver " + databaseDriverId, e);
 228         }
 229         progressMonitor.beginTask("Setting up Simantics Database", 100);
 230         progressMonitor.setTaskName("Asserting Database is installed.");
 231         String msg = "Failed to initialize Simantics database.";
 232         try {
 233             // Create database
 234             log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Initializing database at " + dbLocation + " with driver " + databaseDriverId));
 235             progressMonitor.setTaskName("Creating database at " + dbLocation);
 236             databasebManagement = serverManager.getManagement(dbLocation.toFile());
 237             databasebManagement.create();
 238             currentDatabaseDriver = databaseDriverId;
 239             // Create layer0.
 240             return serverManager.createDatabase(dbLocation.toFile());
 241         } catch (DatabaseException e) {
 242             throw new PlatformException(msg, e);
 243         } catch (Throwable e) {
 244             throw new PlatformException(msg, e);
 245         } finally {
 246             progressMonitor.worked(20);
 247         }
 248     }
 249
 250     public void synchronizeOntologies(IProgressMonitor progressMonitor, OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize) throws PlatformException {
 251
 252         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 253
 254         final DatabaseManagement mgmt = new DatabaseManagement();
 255
 256         PlatformUtil.compileAllDynamicOntologies();
 257
 258         progressMonitor.setTaskName("Asserting all ontologies are installed");
 259         final Map<GraphBundleRef, GraphBundleEx> platformTGs = new HashMap<GraphBundleRef, GraphBundleEx>();
 260         try {
 261
 262             // Get a list of bundles installed into the database
 263             progressMonitor.subTask("find installed bundles from database");
 264             Map<GraphBundleRef, GraphBundleEx> installedTGs = new HashMap<GraphBundleRef, GraphBundleEx>();
 265             for (GraphBundle b : session.syncRequest( mgmt.GraphBundleQuery )) {
 266                 installedTGs.put(GraphBundleRef.of(b), GraphBundleEx.extend(b));
 267             }
 268
 269             if(!requireSynchronize && installedTGs.size() > 1 && !Platform.inDevelopmentMode()) return;
 270 //            if(installedTGs.size() > 1) return;
 271
 272             // Get a list of all bundles in the platform (Bundle Context)
 273             List<GraphBundle> tgs = new ArrayList<GraphBundle>();
 274             progressMonitor.subTask("load all transferable graphs from platform");
 275             PlatformUtil.getAllGraphs(tgs);
 276             progressMonitor.subTask("extend bundles to compile versions");
 277             for (GraphBundle b : tgs) {
 278                 GraphBundleEx gbe = GraphBundleEx.extend(b);
 279                 gbe.build();
 280                 platformTGs.put(GraphBundleRef.of(b), gbe);
 281             }
 282
 283             // Compile a list of TGs that need to be installed or reinstalled in the database
 284             progressMonitor.subTask("check bundle reinstallation demand");
 285             List<GraphBundleEx> installTGs = new ArrayList<GraphBundleEx>();
 286             // Create list of TGs to update, <newTg, oldTg>
 287             Map<GraphBundleEx,GraphBundleEx> reinstallTGs = new TreeMap<GraphBundleEx,GraphBundleEx>();
 288             for (Entry<GraphBundleRef, GraphBundleEx> e : platformTGs.entrySet()) {
 289                 GraphBundleRef key = e.getKey();
 290                 GraphBundleEx platformBundle = e.getValue();
 291                 GraphBundleEx existingBundle = installedTGs.get(key);
 292
 293 //                System.out.println("GraphBundleRef key=" + key.toString());
 294
 295                 if (existingBundle == null) {
 296                     // Bundle did not exist in the database, put it into list of bundles to install
 297                     installTGs.add(platformBundle);
 298                 }
 299                 else {
 300                     // Bundle exists in the database
 301                     boolean platformBundleIsNewer = existingBundle.getVersion().compareTo(platformBundle.getVersion())<0;
 302                     if (!platformBundleIsNewer)
 303                         continue;
 304                     // Check hash of transferable graph to know whether to update or not.
 305                     if (platformBundle.getHashcode() == existingBundle.getHashcode())
 306                         continue;
 307                     //System.out.println("Ontology hashcodes do not match: platform bundle="
 308                     //        + platformBundle.getVersionedId() + ", hash=" + platformBundle.getHashcode()
 309                     //        + "; existing bundle=" + existingBundle.getVersionedId() + ", hash=" + existingBundle.getHashcode());
 310                     reinstallTGs.put(platformBundle, existingBundle);
 311                 }
 312             }
 313             // INSTALL
 314             // Database is missing graphs
 315             if (!installTGs.isEmpty() || !reinstallTGs.isEmpty()) {
 316                 session.getService(XSupport.class).setServiceMode(true, true);
 317
 318                 // Throw error
 319                 if (ontologyPolicy == OntologyRecoveryPolicy.ThrowError) {
 320                     StringBuilder sb = new StringBuilder("The following graphs are not installed in the database: ");
 321                     if (!installTGs.isEmpty()) {
 322                         int i = 0;
 323                         for (GraphBundleEx e : installTGs) {
 324                             if (i>0) sb.append(", ");
 325                             i++;
 326                             sb.append(e.toString());
 327                         }
 328                         sb.append(" is missing from the database.\n");
 329                     }
 330                     if (!reinstallTGs.isEmpty()) {
 331                         int i = 0;
 332                         for (Entry<GraphBundleEx, GraphBundleEx> e : reinstallTGs.entrySet()) {
 333                             if (i>0) sb.append(", ");
 334                             i++;
 335                             sb.append(e.getKey().toString());
 336                         }
 337                         sb.append(" Database/Platform Bundle version mismatch.\n");
 338                     }
 339                     sb.append("Hint: Use -fixErrors to install the graphs.");
 340                     throw new PlatformException(sb.toString());
 341                 }
 342                 // Reinstall database
 343                 if (ontologyPolicy == OntologyRecoveryPolicy.ReinstallDatabase) {
 344                     log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Reinstalling the database."));
 345                     // TODO Install DB
 346                     // Stop Session
 347                     // Kill Process
 348                     // Delete Database
 349                     // Create Database
 350                     // Start Database
 351                     // Open Session
 352                     // Install TGs
 353                     throw new PlatformException("Reinstalling Database, NOT IMPLEMENTED");
 354                 }
 355
 356                 if (ontologyPolicy == OntologyRecoveryPolicy.Merge) {
 357                     progressMonitor.subTask("Merging ontology changes");
 358                     // Sort missing TGs into install order
 359                     GraphDependencyAnalyzer<GraphBundle> analyzer = new GraphDependencyAnalyzer<GraphBundle>();
 360                     for(GraphBundle tg : installTGs) analyzer.addGraph(tg, tg.getGraph());
 361                     for(GraphBundle tg : reinstallTGs.keySet()) analyzer.addGraph(tg, tg.getGraph());
 362                     if(!analyzer.analyzeDependency()) {
 363                         Collection<Pair<GraphBundle, GraphBundle>> problems = analyzer.getConflicts();
 364                         StringBuilder sb = new StringBuilder();
 365                         for (Pair<GraphBundle, GraphBundle> problem : problems) {
 366                             sb.append("Conflict with "+problem.first+" and "+problem.second+".\n");
 367                         }
 368                         throw new PlatformException(sb.toString());
 369                     }
 370                     else if(!session.syncRequest( analyzer.queryExternalDependenciesSatisfied )) {
 371                         Collection<IdentityNode> unsatisfiedDependencies = analyzer.getUnsatisfiedDependencies();
 372                         StringBuilder sb = new StringBuilder();
 373                         for (IdentityNode dep: unsatisfiedDependencies) {
 374                             sb.append("Unsatisfied Dependency "+dep+". Required by\n");
 375                             for(IU iu : GraphDependencyAnalyzer.toCollection(dep.getRequires())) {
 376                                 sb.append("    " + ((GraphBundle)iu.getId()).getId() + "\n");
 377                             }
 378                         }
 379                         throw new PlatformException(sb.toString());
 380                     }
 381
 382                     List<GraphBundle> sortedBundles = analyzer.getSortedGraphs();
 383                     if(!sortedBundles.isEmpty()) {
 384
 385                         session.syncRequest(new WriteRequest() {
 386                             @Override
 387                             public void perform(WriteGraph graph) throws DatabaseException {
 388                                 try {
 389                                     graph.newClusterSet(graph.getRootLibrary());
 390                                 } catch (ClusterSetExistException e) {
 391                                     // Cluster set exist already, no problem.
 392                                 }
 393                                 graph.setClusterSet4NewResource(graph.getRootLibrary());
 394                                 graph.flushCluster();
 395                             }
 396                         });
 397
 398                         boolean mergedOntologies = false;
 399
 400                         // Install TGs
 401                         for(final GraphBundle tg : sortedBundles) {
 402
 403                                 final IImportAdvisor advisor = new OntologyImportAdvisor(tg, mgmt);
 404                                 final GraphBundle oldTG = reinstallTGs.get(tg);
 405
 406                                 if (oldTG==null) {
 407
 408                                         boolean createImmutable = tg.getImmutable();
 409                                 session.getService(XSupport.class).setServiceMode(true, createImmutable);
 410
 411                                         // Install TG
 412                                         log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Installing "+tg.toString()+" - "+tg.getName()));
 413                                         ImportResult result = TransferableGraphs.importGraph1(session, new TGTransferableGraphSource(tg.getGraph()), advisor, null);
 414                                         if (!result.missingExternals.isEmpty()) {
 415                                                 log.log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Import of " + tg.toString() + " was missing the following external entities:\n" + EString.implode(result.missingExternals)));
 416                                         }
 417                                 } else {
 418                                         // Merge TG
 419                                         startTransaction(session, false);
 420                                         TransferableGraphDelta1 delta = new Diff(oldTG.getGraph(), tg.getGraph()).diff();
 421                                         final long[] oldResources = oldTG.getResourceArray();
 422                                         boolean changes = TransferableGraphs.hasChanges(readGraph(), oldResources, delta);
 423                                         endTransaction();
 424                                         if (!changes) {
 425                                             //log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Nothing to merge for "+tg.toString()));
 426                                             continue;
 427                                         }
 428
 429                                 log.log(new Status(IStatus.INFO, Activator.PLUGIN_ID, "Merging new version of "+tg.toString()));
 430
 431                                         startTransaction(session, true);
 432
 433                                         //delta.print();
 434                                         try {
 435
 436
 437                                                 long[] resourceArray = TransferableGraphs.applyDelta(writeGraph(), oldResources, delta);
 438                                                 tg.setResourceArray(resourceArray);
 439                                                 mgmt.setGraphBundleEntry(tg);
 440                                                 commit();
 441                                                 mergedOntologies = true;
 442                                         } catch (Throwable t) {
 443                                                 throw new PlatformException(t);
 444                                         } finally {
 445                                                 endTransaction();
 446                                         }
 447                                 }
 448                         }
 449
 450                         session.syncRequest(new WriteRequest() {
 451                             @Override
 452                             public void perform(WriteGraph graph) throws DatabaseException {
 453                                 graph.setClusterSet4NewResource(graph.getRootLibrary());
 454                                 graph.flushCluster();
 455                             }
 456                         });
 457
 458                         if (mergedOntologies)
 459                             DatabaseIndexing.deleteAllIndexes();
 460                     }
 461
 462                     TimeLogger.log("Ontologies synchronized.");
 463
 464                 }
 465                 session.getService(XSupport.class).setServiceMode(false, false);
 466             }
 467             progressMonitor.worked(20);
 468         } catch (IOException e) {
 469             throw new PlatformException(e);
 470         } catch (DatabaseException e) {
 471             throw new PlatformException(e);
 472         }
 473
 474     }
 475
 476     public boolean assertConfiguration(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy) throws PlatformException {
 477
 478         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 479
 480         File workspaceLocation = Platform.getLocation().toFile();
 481
 482         boolean installProject = false;
 483         progressMonitor.setTaskName("Asserting simantics.cfg is installed");
 484         try {
 485             File propertyFile = new File(workspaceLocation, "simantics.cfg");
 486             Properties properties;
 487             try {
 488                 properties = WorkspaceUtil.readProperties(propertyFile);
 489             } catch (IOException e) {
 490                 if (workspacePolicy == RecoveryPolicy.ThrowError) throw new PlatformException("Could not load "+propertyFile);
 491
 492                 // Create a project and write Property file
 493                 properties = new Properties();
 494                 properties.setProperty("project_uri", "http://Projects/Development%20Project");
 495                 properties.setProperty("project_name", "Development Project");
 496                 WorkspaceUtil.writeProperties(propertyFile, properties);
 497                 installProject |= true;
 498             }
 499             projectURI = properties.getProperty("project_uri");
 500             projectName = properties.getProperty("project_name");
 501             progressMonitor.worked(10);
 502         } catch (IOException e) {
 503             throw new PlatformException(e);
 504         }
 505
 506         return installProject;
 507
 508     }
 509
 510     public boolean assertProject(IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy, boolean installProject) throws PlatformException {
 511
 512         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 513
 514         final DatabaseManagement mgmt = new DatabaseManagement();
 515
 516         progressMonitor.setTaskName("Asserting project resource exists in the database");
 517         try {
 518             projectResource = session.syncRequest( Queries.resource( projectURI ) );
 519         } catch (ResourceNotFoundException nfe) {
 520             // Project was not found
 521             if (workspacePolicy == RecoveryPolicy.ThrowError)
 522                 throw new PlatformException("Project Resource "+projectURI+" is not found in the database.");
 523             // Create empty project with no features
 524             try {
 525                 Transaction.startTransaction(session, true);
 526                 try {
 527                     // The project needs to be created mutable.
 528                     session.getService(XSupport.class).setServiceMode(true, false);
 529
 530                     ArrayList<String> empty = new ArrayList<String>();
 531                     projectResource = mgmt.createProject(projectName, empty);
 532                     installProject |= true;
 533
 534                     session.getService(XSupport.class).setServiceMode(false, false);
 535                     Transaction.commit();
 536                 } finally {
 537                     Transaction.endTransaction();
 538                 }
 539                 //session.getService( LifecycleSupport.class ).save();
 540             } catch (DatabaseException e) {
 541                 throw new PlatformException("Failed to create "+projectURI, e);
 542             }
 543         } catch (DatabaseException e) {
 544             throw new PlatformException("Failed to create "+projectURI, e);
 545         }
 546         progressMonitor.worked(10);
 547
 548         return installProject;
 549
 550     }
 551
 552     public void updateInstalledGroups(IProgressMonitor progressMonitor, boolean installProject) throws PlatformException {
 553
 554         if (installProject)
 555         {
 556             // Attach all feature groups available in platform to created project
 557             progressMonitor.setTaskName("Install all features");
 558             Set<GroupReference> publishedFeatureGroups = ProjectFeatures.getInstallGroupsOfPublishedFeatures();
 559             Collection<GroupReference> groupsWithoutVersion = GroupReference.stripVersions(publishedFeatureGroups);
 560
 561     //        final List<String> Platform_Features = new ArrayList<String>();
 562     //
 563     //        // Convert graph instances
 564     //        Collection<TransferableGraph1> platformGraphs = new ArrayList<TransferableGraph1>();
 565     //        for (GraphBundleEx e : platformTGs.values()) platformGraphs.add( e.getGraph() );
 566     //        IGraph graph = Graphs.createGraph(platformGraphs);
 567     //
 568     //        Res    PublishedProjectFeatures = UriUtils.uriToPath( ProjectResource.URIs.PublishedProjectFeatures );
 569     //        Path   HasFeature = UriUtils.uriToPath( ProjectResource.URIs.HasFeature );
 570     //        for(Res feature : graph.getObjects(PublishedProjectFeatures, HasFeature)) {
 571     //            System.out.println("Installing Project Feature: "+feature.toString());
 572     //            Platform_Features.add( feature.toString() );
 573     //        }
 574
 575             try {
 576                 Transaction.startTransaction(session, true);
 577                 try {
 578     //                for (String feature : Platform_Features) {
 579     //                    try {
 580     //                        getResource(feature);
 581     //                    } catch(ResourceNotFoundException e) {
 582     //                        System.out.println(feature+" not found");
 583     //                    }
 584     //                    mgmt.installFeature(projectResource, feature);
 585     //                }
 586                     Projects.setProjectInstalledGroups(writeGraph(), projectResource, groupsWithoutVersion);
 587                     Transaction.commit();
 588                 } finally {
 589                     Transaction.endTransaction();
 590                 }
 591                 //session.getService( LifecycleSupport.class ).save();
 592             } catch(DatabaseException ae) {
 593                 throw new PlatformException("Failed to install features", ae);
 594             }
 595             progressMonitor.worked(10);
 596         }
 597
 598     }
 599
 600     public void assertSessionModel(IProgressMonitor progressMonitor) throws PlatformException {
 601
 602         Properties properties = session.getService(Properties.class);
 603         final String clientId = properties.getProperty("clientId");
 604
 605         try {
 606
 607             // Currently this needs to be done before data becomes available
 608             VirtualGraphSupport support = session.getService(VirtualGraphSupport.class);
 609             VirtualGraph activations = support.getWorkspacePersistent("activations");
 610
 611             Resource sessionModel = session.syncRequest(new Read<Resource>() {
 612
 613                 @Override
 614                 public Resource perform(ReadGraph graph) throws DatabaseException {
 615
 616                     Layer0X L0X = Layer0X.getInstance(graph);
 617                     for(Resource sessionModel : graph.syncRequest(new ObjectsWithType(graph.getRootLibrary(), L0X.HasSession, L0X.Session))) {
 618                         String id = graph.getPossibleRelatedValue(sessionModel, L0X.Session_HasClientId);
 619                         if(id != null && id.equals(clientId)) return sessionModel;
 620                     }
 621                     return null;
 622
 623                 }
 624
 625             });
 626
 627             if(sessionModel == null) {
 628
 629                 sessionModel = session.syncRequest(new WriteResultRequest<Resource>(activations) {
 630
 631                     @Override
 632                     public Resource perform(WriteGraph graph) throws DatabaseException {
 633                         Layer0 L0 = Layer0.getInstance(graph);
 634                         Layer0X L0X = Layer0X.getInstance(graph);
 635                         Resource session = graph.newResource();
 636                         graph.claim(session, L0.InstanceOf, null, L0X.Session);
 637                         graph.claim(session, L0X.Session_HasUser, null, graph.getResource("http://Users/AdminUser"));
 638                         graph.addLiteral(session, L0X.Session_HasClientId, L0X.Session_HasClientId_Inverse, clientId, Bindings.STRING);
 639                         graph.claim(graph.getRootLibrary(), L0X.HasSession, session);
 640                         return session;
 641                     }
 642                 });
 643
 644             }
 645
 646             session.registerService(SessionModel.class, new PlatformSessionModel(sessionModel));
 647         } catch (DatabaseException e) {
 648             throw new PlatformException(e);
 649         }
 650
 651     }
 652
 653     static class PlatformSessionModel implements SessionModel {
 654         private final Resource sessionModel;
 655
 656         public PlatformSessionModel(Resource model) {
 657             this.sessionModel = model;
 658         }
 659
 660         @Override
 661         public Resource getResource() {
 662             return sessionModel;
 663         }
 664     }
 665
 666     public void resetDatabase(IProgressMonitor monitor) throws PlatformException {
 667         File dbLocation = Platform.getLocation().append("db").toFile();
 668         if(!dbLocation.exists()) return;
 669         try { // Load driver
 670             Driver driver = Manager.getDriver("procore");
 671             Management management = driver.getManagement(dbLocation.getAbsolutePath(), null);
 672             management.delete();
 673         } catch (DatabaseException e) {
 674             throw new PlatformException("Failed to remove database at " + dbLocation.getAbsolutePath(), e);
 675         }
 676         // We have created extra files to database folder which have to be deleted also.
 677         // This is an awful idea! Do not create extra files to database folder!
 678         Throwable t = null;
 679         for (int i=0; i<10; ++i) {
 680             try {
 681                 FileUtils.deleteAll(dbLocation);
 682                 t = null;
 683                 break;
 684             } catch (IOException e) {
 685                 // Assuming this has been thrown because delete file/folder failed.
 686                 t = e;
 687             }
 688             try {
 689                 Thread.sleep(200);
 690             } catch (InterruptedException e) {
 691                 // Ignoring interrupted exception.
 692             }
 693         }
 694         if (null != t)
 695             throw new PlatformException("Failed to remove database folder at " + dbLocation.getAbsolutePath(), t);
 696     }
 697     public void resetWorkspace(IProgressMonitor monitor, ArrayList<String> fileFilter) throws PlatformException, IllegalStateException, IOException {
 698         File file = Platform.getLocation().toFile();
 699         if (null != fileFilter)
 700             FileUtils.deleteAllWithFilter(file , fileFilter);
 701         resetDatabase(monitor);
 702     }
 703
 704     /**
 705      * Start-up the platform. The procedure consists of 8 steps. Once everything
 706      * is up and running, all fields are set property.
 707      * <p>
 708      *
 709      * If workspacePolicy is FixErrors, there is an attempt to fix unexpected
 710      * errors. It includes installing database files, installing ontologies, and
 711      * installing project features.
 712      * <p>
 713      *
 714      * In SWB this is handled in SimanticsWorkbenchAdvisor#openWindows().
 715      * <p>
 716      *
 717      * If remote server is given, simantics plaform takes connection there
 718      * instead of local server at "db/".
 719      *
 720      * @param workspacePolicy action to take on workspace/database related
 721      *        errors
 722      * @param ontologyPolicy action to take on ontology mismatch
 723      * @param progressMonitor optional progress monitor
 724      * @param userAgent interface for resorting to user feedback during platform
 725      *        startup or <code>null</code> to resort to default measures
 726      * @throws PlatformException
 727      */
 728     public SessionContext startUp(String databaseDriverId, IProgressMonitor progressMonitor, RecoveryPolicy workspacePolicy,
 729             OntologyRecoveryPolicy ontologyPolicy, boolean requireSynchronize, PlatformUserAgent userAgent)
 730     throws PlatformException
 731     {
 732
 733         assert(!running);
 734         TimeLogger.log("Beginning of SimanticsPlatform.startUp");
 735
 736         LOGGER.info("Beginning of SimanticsPlatform.startUp");
 737
 738         if (progressMonitor == null) progressMonitor = new NullProgressMonitor();
 739
 740         // For debugging on what kind of platform automatic tests are running in
 741         // case there are problems.
 742         if ("true".equals(System.getProperty("org.simantics.dumpBundleState")))
 743             dumpPlatformBundleState();
 744
 745         // 0. Consult all startup extensions before doing anything with the workspace.
 746         StartupExtensions.consultStartupExtensions();
 747         TimeLogger.log("Consulted platform pre-startup extensions");
 748
 749         // 0.1. Clear all temporary files
 750         Simantics.clearTemporaryDirectory();
 751         TimeLogger.log("Cleared temporary directory");
 752
 753         // 0.2 Clear VariableRepository.repository static map which holds references to SessionImplDb
 754         VariableRepository.clear();
 755
 756         // 1. Assert there is a database at <workspace>/db
 757         session = setupDatabase(databaseDriverId, progressMonitor, workspacePolicy, userAgent);
 758         TimeLogger.log("Database setup complete");
 759
 760         // 1.1
 761         XSupport support = session.getService(XSupport.class);
 762         if (support.rolledback()) {
 763             try {
 764                 DatabaseIndexing.deleteAllIndexes();
 765             } catch (IOException e) {
 766                 throw new PlatformException(e);
 767             }
 768         }
 769
 770         // 2. Assert all graphs, and correct versions, are installed to the database
 771         synchronizeOntologies(progressMonitor, ontologyPolicy, requireSynchronize);
 772         TimeLogger.log("Synchronized ontologies");
 773
 774         // 4. Assert simantics.cfg exists
 775         boolean installProject = assertConfiguration(progressMonitor,workspacePolicy);
 776
 777         // 5. Assert Project Resource is installed in the database
 778         installProject = assertProject(progressMonitor, workspacePolicy, installProject);
 779
 780         // 6. Install all features into project, if in debug mode
 781         updateInstalledGroups(progressMonitor, installProject);
 782         TimeLogger.log("Installed all features into project");
 783
 784         // 7. Assert L0.Session in database for this session
 785         assertSessionModel(progressMonitor);
 786
 787         session.getService(XSupport.class).setServiceMode(false, false);
 788
 789         try {
 790             session.sync(new WriteRequest() {
 791
 792                 @Override
 793                 public void perform(WriteGraph graph) throws DatabaseException {
 794                     QueryControl qc = graph.getService(QueryControl.class);
 795                     qc.flush(graph);
 796                 }
 797
 798             });
 799             TimeLogger.log("Flushed queries");
 800         } catch (DatabaseException e) {
 801             LOGGER.error("Flushing queries failed.", e);
 802         }
 803         boolean loadProject = true;
 804         try {
 805
 806                 sessionContext = SimanticsPlatform.INSTANCE.createSessionContext(true);
 807                 // This must be before setSessionContext since some listeners might query this
 808             sessionContext.setHint(SimanticsKeys.KEY_PROJECT, SimanticsPlatform.INSTANCE.projectResource);
 809
 810             Simantics.setSessionContext(sessionContext);
 811
 812             // 1. Put ResourceBinding that throws an exception to General Bindings
 813             simanticsBindings = new SimanticsBindings( null );
 814             Bindings.classBindingFactory.addFactory( simanticsBindings );
 815
 816
 817             // 2. Create session-specific second Binding context (Databoard) and
 818             //    put that to Session as a service
 819             Session session = sessionContext.getSession();
 820             Databoard sessionDataboard = new Databoard();
 821             session.registerService(Databoard.class, sessionDataboard);
 822             simanticsBindings2 = new SimanticsBindings( session );
 823             sessionDataboard.classBindingFactory.addFactory( simanticsBindings2 );
 824
 825             // Register datatype bindings
 826             Bindings.defaultBindingFactory.getRepository().put(RGB.Integer.BINDING.type(), RGB.Integer.BINDING);
 827             Bindings.defaultBindingFactory.getRepository().put(Font.BINDING.type(), Font.BINDING);
 828
 829             if(loadProject) {
 830
 831                 TimeLogger.log("Load projects");
 832                 project = Projects.loadProject(sessionContext.getSession(), SimanticsPlatform.INSTANCE.projectResource);
 833
 834                 sessionContext.setHint(ProjectKeys.KEY_PROJECT, project);
 835                 TimeLogger.log("Loading projects complete");
 836
 837                 project.activate();
 838                 TimeLogger.log("Project activated");
 839             }
 840
 841         } catch (DatabaseException e) {
 842             LOGGER.error("Platform startup failed.", e);
 843             throw new PlatformException(e);
 844         } catch (ProjectException e) {
 845             boolean hasStackTrace = e.getStackTrace().length > 0;
 846             if (!hasStackTrace)
 847                 throw new PlatformException(e.getMessage(), hasStackTrace);
 848             throw new PlatformException(e, hasStackTrace);
 849         }
 850
 851         running = true;
 852
 853         return sessionContext;
 854
 855     }
 856
 857     public SessionContext createSessionContext(boolean init) throws PlatformException {
 858         try {
 859             // Construct and initialize SessionContext from Session.
 860             SessionContext sessionContext = SessionContext.create(session, init);
 861             if (init)
 862                 sessionContext.registerServices();
 863             return sessionContext;
 864         } catch (DatabaseException e) {
 865             throw new PlatformException(e);
 866         }
 867     }
 868
 869 //    private static File getIgnorePrerequisitesFile(URL workspaceUrl) {
 870 //        if (workspaceUrl == null)
 871 //            return null;
 872 //        return new File(workspaceUrl.getPath(), ".ignorePrerequisites");
 873 //    }
 874 //
 875 //    private void ensurePrerequisites(IProgressMonitor progressMonitor, PlatformUserAgent userAgent) throws PlatformException {
 876 //        Location loc = Platform.getInstanceLocation();
 877 //        File ignorePrerequisites = getIgnorePrerequisitesFile(loc.getURL());
 878 //        if (loc.isSet() && ignorePrerequisites != null) {
 879 //            if (ignorePrerequisites.exists() || ignorePrerequisites.isFile())
 880 //                return;
 881 //        }
 882 //
 883 //        try {
 884 //            ServerEnvironment.ensureServerDependenciesMet();
 885 //        } catch (ExecutionEnvironmentException e) {
 886 //            // Not installed properly, ask user whether to try installation.
 887 //            try {
 888 //                StringBuilder msg = new StringBuilder();
 889 //                msg.append("Your system seems to be missing the following prerequisites for running this application:\n\n");
 890 //                for (Product product : e.requiredProducts)
 891 //                    msg.append("\t" + product.getDescription() + "\n");
 892 //                msg.append("\nYou can either install the missing components now or ignore and attempt to start the application without them. Ignore Always will ignore this question for this workspace.");
 893 //                msg.append("\n\nSelecting Cancel will close the application.");
 894 //
 895 //                int selection = 0;
 896 //                if (userAgent != null) {
 897 //                    selection = userAgent.showPrompt("Missing Prerequisites", msg.toString(), new String[] {
 898 //                        "Install Pre-requisites",
 899 //                        "Ignore Now",
 900 //                        "Ignore Always",
 901 //                        "Cancel"
 902 //                    }, selection);
 903 //                }
 904 //                boolean tryInstall = false;
 905 //                switch (selection) {
 906 //                    case 0:
 907 //                        tryInstall = true;
 908 //                        break;
 909 //                    case 2:
 910 //                        ignorePrerequisites.createNewFile();
 911 //                    case 1:
 912 //                        break;
 913 //                    case 3:
 914 //                    case -1:
 915 //                        throw new CancelStartupException();
 916 //                }
 917 //
 918 //                if (tryInstall) {
 919 //                    // Try to install it and check for success afterwards.
 920 //                    ServerEnvironment.tryInstallDependencies(progressMonitor);
 921 //                    ServerEnvironment.ensureServerDependenciesMet();
 922 //                }
 923 //            } catch (InstallException ie) {
 924 //                throw new PlatformException(ie);
 925 //            } catch (ExecutionEnvironmentException eee) {
 926 //                throw new PlatformException(eee);
 927 //            } catch (IOException ie) {
 928 //                throw new PlatformException(ie);
 929 //            }
 930 //        }
 931 //    }
 932
 933     /**
 934      * Shutdown Simantics Platform.
 935      *
 936      * In SWB this is handled in SimanticsWorkbenchAdvisor#disconnectFromWorkspace.
 937      *
 938      * @param progressMonitor optional progress monitor
 939      * @throws PlatformException
 940      */
 941     public void shutdown(IProgressMonitor progressMonitor) throws PlatformException
 942     {
 943         SubMonitor progress = SubMonitor.convert(progressMonitor, 100);
 944         PlatformException platformException = null;
 945         try {
 946             progress.subTask("Close Project");
 947             if (project != null) {
 948                 project.safeDispose();
 949             }
 950             progress.worked(10);
 951
 952             running = false;
 953             progress.subTask("Close Database Session");
 954             Databoard databoard = null;
 955             if (sessionContext != null) {
 956                 Session s = sessionContext.peekSession();
 957                 if (s != null) {
 958                     databoard = s.peekService(Databoard.class);
 959
 960                     progress.subTask("Flushing Index Caches");
 961                     try {
 962                         Simantics.flushIndexCaches(progress.newChild(20), s);
 963                     } catch (Throwable t) {
 964                         LOGGER.error("Failed to flush index caches.", t);
 965                     }
 966                 }
 967
 968                 progress.subTask("Close Database Session");
 969                 sessionContext.safeDispose();
 970                 sessionContext = null;
 971                 Simantics.setSessionContext(null);
 972             }
 973             if (simanticsBindings != null) {
 974                 Bindings.classBindingFactory.removeFactory( simanticsBindings );
 975                 simanticsBindings = null;
 976             }
 977             if (databoard != null) {
 978                 if (simanticsBindings2 != null) {
 979                         databoard.classBindingFactory.removeFactory( simanticsBindings2 );
 980                         simanticsBindings2 = null;
 981                 }
 982                 databoard.clear();
 983             }
 984
 985             // Make sure Simantics clipboard doesn't store unwanted session data references.
 986             Simantics.setClipboard(new SimanticsClipboardImpl());
 987
 988             progress.worked(30);
 989
 990             session = null;
 991             projectResource = null;
 992             currentDatabaseDriver = null;
 993
 994             DependenciesRelation.assertFinishedTracking();
 995
 996         } catch (Exception e) {
 997             platformException = new PlatformException("Failed to shutdown Simantics Platform", e);
 998         }
 999
1000         progress.worked(10);
1001         progress.subTask("Shutting down database");
1002         try {
1003             if (null != databasebManagement)
1004                 databasebManagement.shutdown();
1005         } catch (Throwable t) {
1006             LOGGER.error("Database shutdown failed.", t);
1007         }
1008         progress.worked(10);
1009
1010         progress.subTask("Clearing Workspace Temporary Directory");
1011         try {
1012             Simantics.clearTemporaryDirectory();
1013         } catch (Throwable t) {
1014             LOGGER.error("Failed to clear the temporary directory.", t);
1015         }
1016         progress.worked(10);
1017         if (null != platformException)
1018             throw platformException;
1019     }
1020
1021     // TODO: consider removing this in the future ??
1022     @Override
1023     public void stateChanged(LifecycleState newState) {
1024         if(newState == LifecycleState.CLOSED) {
1025             if(running) {
1026                 if(Platform.isRunning()) {
1027                     mainThread.interrupt();
1028                 }
1029             }
1030         }
1031     }
1032
1033     /**
1034      * @return <code>true</code> if discard was successful, <code>false</code>
1035      *         if there was no session, {@link UndoRedoSupport} or
1036      *         {@link UndoContext} to discard through
1037      */
1038     public boolean discardSessionUndoHistory() {
1039         Session s = session;
1040         if (s != null) {
1041             UndoRedoSupport urs = s.peekService(UndoRedoSupport.class);
1042             if (urs != null) {
1043                 UndoContext uc = urs.getUndoContext(s);
1044                 if (uc != null) {
1045                     uc.clear();
1046                     return true;
1047                 }
1048             }
1049         }
1050         return false;
1051     }
1052
1053     public void reconnect(String databaseDriverId) throws Exception {
1054         // Starts database server.
1055         if (currentDatabaseDriver != null)
1056             databaseDriverId = currentDatabaseDriver;
1057         SimanticsPlatform.INSTANCE.startUp(databaseDriverId, null, RecoveryPolicy.ThrowError, OntologyRecoveryPolicy.ThrowError, true, null);
1058     }
1059
1060     private void dumpPlatformBundleState() {
1061         BundleDescription[] bs = Platform.getPlatformAdmin().getState().getBundles();
1062         System.out.println("Total bundles: " + bs.length);
1063         for (BundleDescription b : bs) {
1064             System.out.format("%-80s @ %s\n", b.toString(), b.getLocation());
1065         }
1066     }
1067
1068     private Ini loadOrCreateDatabaseIni(Path path, String databaseDriverId)
1069             throws InvalidFileFormatException, IOException
1070     {
1071         File f = path.toFile();
1072         Ini dbIni = Files.isRegularFile(path) ? new Ini(f) : new Ini();
1073         String iniId = dbIni != null ? dbIni.get("driver", "id") : null;
1074         if (iniId == null) {
1075             dbIni.put("driver", "id", databaseDriverId);
1076             dbIni.store(f);
1077         }
1078         return dbIni;
1079     }
1080
1081 }