Examples with TransactionManager org.exist.storage.txn.TransactionManager used on opensource projects

Example 6 with TransactionManager

use of org.exist.storage.txn.TransactionManager in project exist by eXist-db.

the class NodeTest method setUp.

@BeforeClass
public static void setUp() throws Exception {
    final BrokerPool pool = existEmbeddedServer.getBrokerPool();
    final TransactionManager transact = pool.getTransactionManager();
    try (final DBBroker broker = pool.get(Optional.of(pool.getSecurityManager().getSystemSubject()));
        final Txn transaction = transact.beginTransaction()) {
        root = broker.getOrCreateCollection(transaction, XmldbURI.create(XmldbURI.ROOT_COLLECTION + "/test"));
        assertNotNull(root);
        broker.saveCollection(transaction, root);
        broker.storeDocument(transaction, XmldbURI.create("test.xml"), new StringInputSource(XML), MimeType.XML_TYPE, root);
        transact.commit(transaction);
    }
}

Example 7 with TransactionManager

use of org.exist.storage.txn.TransactionManager in project exist by eXist-db.

the class NodeTest method tearDown.

@AfterClass
public static void tearDown() throws EXistException, PermissionDeniedException, IOException, TriggerException {
    final BrokerPool pool = existEmbeddedServer.getBrokerPool();
    final TransactionManager transact = pool.getTransactionManager();
    try (final DBBroker broker = pool.get(Optional.of(pool.getSecurityManager().getSystemSubject()));
        final Txn transaction = transact.beginTransaction()) {
        root = broker.getOrCreateCollection(transaction, XmldbURI.create(XmldbURI.ROOT_COLLECTION + "/test"));
        assertNotNull(root);
        broker.removeCollection(transaction, root);
        transact.commit(transaction);
    }
}

Example 8 with TransactionManager

use of org.exist.storage.txn.TransactionManager in project exist by eXist-db.

the class DatabaseInsertResources_WithValidation_Test method removeTestCollections.

private static void removeTestCollections() throws Exception {
    final BrokerPool pool = existEmbeddedServer.getBrokerPool();
    final TransactionManager transact = pool.getTransactionManager();
    try (final DBBroker broker = pool.get(Optional.of(pool.getSecurityManager().authenticate(ADMIN_DB_USER, ADMIN_DB_PWD)));
        final Txn txn = transact.beginTransaction()) {
        Collection testCollection = broker.getOrCreateCollection(txn, XmldbURI.create(VALIDATION_HOME_COLLECTION_URI));
        broker.removeCollection(txn, testCollection);
        transact.commit(txn);
    }
}

Example 9 with TransactionManager

use of org.exist.storage.txn.TransactionManager in project exist by eXist-db.

the class BrokerPool method _initialize.

private void _initialize() throws EXistException, DatabaseConfigurationException {
    this.lockManager = new LockManager(conf, concurrencyLevel);
    // Flag to indicate that we are initializing
    status.process(Event.INITIALIZE);
    if (LOG.isDebugEnabled()) {
        LOG.debug("initializing database instance '{}'...", instanceName);
    }
    // register core broker pool services
    this.scheduler = servicesManager.register(new QuartzSchedulerImpl(this));
    // NOTE: this must occur after the scheduler, and before any other service which requires access to the data directory
    this.dataLock = servicesManager.register(new FileLockService("dbx_dir.lck", BrokerPool.PROPERTY_DATA_DIR, NativeBroker.DEFAULT_DATA_DIR));
    this.securityManager = servicesManager.register(new SecurityManagerImpl(this));
    this.cacheManager = servicesManager.register(new DefaultCacheManager(this));
    this.xQueryPool = servicesManager.register(new XQueryPool());
    this.processMonitor = servicesManager.register(new ProcessMonitor());
    this.xqueryStats = servicesManager.register(new PerformanceStats(this));
    final XMLReaderObjectFactory xmlReaderObjectFactory = servicesManager.register(new XMLReaderObjectFactory());
    this.xmlReaderPool = servicesManager.register(new XMLReaderPool(xmlReaderObjectFactory, maxBrokers, 0));
    final int bufferSize = Optional.of(conf.getInteger(PROPERTY_COLLECTION_CACHE_SIZE)).filter(size -> size != -1).orElse(DEFAULT_COLLECTION_BUFFER_SIZE);
    this.collectionCache = servicesManager.register(new CollectionCache());
    this.notificationService = servicesManager.register(new NotificationService());
    this.journalManager = recoveryEnabled ? Optional.of(new JournalManager()) : Optional.empty();
    journalManager.ifPresent(servicesManager::register);
    final SystemTaskManager systemTaskManager = servicesManager.register(new SystemTaskManager(this));
    this.transactionManager = servicesManager.register(new TransactionManager(this, journalManager, systemTaskManager));
    this.blobStoreService = servicesManager.register(new BlobStoreImplService());
    this.symbols = servicesManager.register(new SymbolTable());
    this.expathRepo = Optional.ofNullable(new ExistRepository());
    expathRepo.ifPresent(servicesManager::register);
    servicesManager.register(new ClasspathHelper());
    this.indexManager = servicesManager.register(new IndexManager(this));
    // prepare those services that require system (single-user) mode
    this.pluginManager = servicesManager.register(new PluginsManagerImpl());
    // Get a manager to handle further collections configuration
    this.collectionConfigurationManager = servicesManager.register(new CollectionConfigurationManager(this));
    this.startupTriggersManager = servicesManager.register(new StartupTriggersManager());
    // this is just used for unit tests
    final BrokerPoolService testBrokerPoolService = (BrokerPoolService) conf.getProperty("exist.testBrokerPoolService");
    if (testBrokerPoolService != null) {
        servicesManager.register(testBrokerPoolService);
    }
    // configure the registered services
    try {
        servicesManager.configureServices(conf);
    } catch (final BrokerPoolServiceException e) {
        throw new EXistException(e);
    }
    // calculate how much memory is reserved for caches to grow
    final Runtime rt = Runtime.getRuntime();
    final long maxMem = rt.maxMemory();
    final long minFree = maxMem / 5;
    reservedMem = cacheManager.getTotalMem() + collectionCache.getMaxCacheSize() + minFree;
    LOG.debug("Reserved memory: {}; max: {}; min: {}", reservedMem, maxMem, minFree);
    // prepare the registered services, before entering system (single-user) mode
    try {
        servicesManager.prepareServices(this);
    } catch (final BrokerPoolServiceException e) {
        throw new EXistException(e);
    }
    // setup database synchronization job
    if (majorSyncPeriod > 0) {
        final SyncTask syncTask = new SyncTask();
        syncTask.configure(conf, null);
        scheduler.createPeriodicJob(2500, new SystemTaskJobImpl(SyncTask.getJobName(), syncTask), 2500);
    }
    try {
        statusReporter = new StatusReporter(SIGNAL_STARTUP);
        statusObservers.forEach(statusReporter::addObserver);
        final Thread statusThread = newInstanceThread(this, "startup-status-reporter", statusReporter);
        statusThread.start();
        // statusReporter may have to be terminated or the thread can/will hang.
        try {
            final boolean exportOnly = conf.getProperty(PROPERTY_EXPORT_ONLY, false);
            // or the FileSyncThread for the journal can/will hang.
            try {
                // Enter System Mode
                try (final DBBroker systemBroker = get(Optional.of(securityManager.getSystemSubject()))) {
                    status.process(Event.INITIALIZE_SYSTEM_MODE);
                    if (isReadOnly()) {
                        journalManager.ifPresent(JournalManager::disableJournalling);
                    }
                    try (final Txn transaction = transactionManager.beginTransaction()) {
                        servicesManager.startPreSystemServices(systemBroker, transaction);
                        transaction.commit();
                    } catch (final BrokerPoolServiceException e) {
                        throw new EXistException(e);
                    }
                    // Run the recovery process
                    boolean recovered = false;
                    if (isRecoveryEnabled()) {
                        recovered = runRecovery(systemBroker);
                        // TODO : extract the following from this block ? What if we are not transactional ? -pb
                        if (!recovered) {
                            try {
                                if (systemBroker.getCollection(XmldbURI.ROOT_COLLECTION_URI) == null) {
                                    final Txn txn = transactionManager.beginTransaction();
                                    try {
                                        systemBroker.getOrCreateCollection(txn, XmldbURI.ROOT_COLLECTION_URI);
                                        transactionManager.commit(txn);
                                    } catch (final IOException | TriggerException | PermissionDeniedException e) {
                                        transactionManager.abort(txn);
                                    } finally {
                                        transactionManager.close(txn);
                                    }
                                }
                            } catch (final PermissionDeniedException pde) {
                                LOG.fatal(pde.getMessage(), pde);
                            }
                        }
                    }
                    /* initialise required collections if they don't exist yet */
                    if (!exportOnly) {
                        try {
                            initialiseSystemCollections(systemBroker);
                        } catch (final PermissionDeniedException pde) {
                            LOG.error(pde.getMessage(), pde);
                            throw new EXistException(pde.getMessage(), pde);
                        }
                    }
                    statusReporter.setStatus(SIGNAL_READINESS);
                    try (final Txn transaction = transactionManager.beginTransaction()) {
                        servicesManager.startSystemServices(systemBroker, transaction);
                        transaction.commit();
                    } catch (final BrokerPoolServiceException e) {
                        throw new EXistException(e);
                    }
                    // TODO : merge this with the recovery process ?
                    if (isRecoveryEnabled() && recovered) {
                        if (!exportOnly) {
                            reportStatus("Reindexing database files...");
                            try {
                                systemBroker.repair();
                            } catch (final PermissionDeniedException e) {
                                LOG.warn("Error during recovery: {}", e.getMessage(), e);
                            }
                        }
                        if ((Boolean) conf.getProperty(PROPERTY_RECOVERY_CHECK)) {
                            final ConsistencyCheckTask task = new ConsistencyCheckTask();
                            final Properties props = new Properties();
                            props.setProperty("backup", "no");
                            props.setProperty("output", "sanity");
                            task.configure(conf, props);
                            try (final Txn transaction = transactionManager.beginTransaction()) {
                                task.execute(systemBroker, transaction);
                                transaction.commit();
                            }
                        }
                    }
                    // OK : the DB is repaired; let's make a few RW operations
                    statusReporter.setStatus(SIGNAL_WRITABLE);
                    // initialize configurations watcher trigger
                    if (!exportOnly) {
                        try {
                            initialiseTriggersForCollections(systemBroker, XmldbURI.SYSTEM_COLLECTION_URI);
                        } catch (final PermissionDeniedException pde) {
                            // XXX: do not catch exception!
                            LOG.error(pde.getMessage(), pde);
                        }
                    }
                    // remove temporary docs
                    try {
                        systemBroker.cleanUpTempResources(true);
                    } catch (final PermissionDeniedException pde) {
                        LOG.error(pde.getMessage(), pde);
                    }
                    sync(systemBroker, Sync.MAJOR);
                    // system mode before entering multi-user mode
                    try (final Txn transaction = transactionManager.beginTransaction()) {
                        servicesManager.startPreMultiUserSystemServices(systemBroker, transaction);
                        transaction.commit();
                    } catch (final BrokerPoolServiceException e) {
                        throw new EXistException(e);
                    }
                }
                // Create the minimal number of brokers required by the configuration
                for (int i = 1; i < minBrokers; i++) {
                    createBroker();
                }
                status.process(Event.INITIALIZE_MULTI_USER_MODE);
                // register some MBeans to provide access to this instance
                AgentFactory.getInstance().initDBInstance(this);
                if (LOG.isDebugEnabled()) {
                    LOG.debug("database instance '{}' initialized", instanceName);
                }
                servicesManager.startMultiUserServices(this);
                status.process(Event.READY);
                statusReporter.setStatus(SIGNAL_STARTED);
            } catch (final Throwable t) {
                transactionManager.shutdown();
                throw t;
            }
        } catch (final EXistException e) {
            throw e;
        } catch (final Throwable t) {
            throw new EXistException(t.getMessage(), t);
        }
    } finally {
        if (statusReporter != null) {
            statusReporter.terminate();
            statusReporter = null;
        }
    }
}

Example 10 with TransactionManager

use of org.exist.storage.txn.TransactionManager in project exist by eXist-db.

the class NativeBroker method storeTempResource.

/**
 * Store into the temporary collection of the database a given in-memory Document
 *
 * The in-memory Document is stored without a transaction and is not journalled,
 * if there is no temporary collection, this will first be created with a transaction
 *
 * @param doc The in-memory Document to store
 * @return The document stored in the temp collection
 */
@Override
public DocumentImpl storeTempResource(final org.exist.dom.memtree.DocumentImpl doc) throws EXistException, PermissionDeniedException, LockException {
    try {
        // elevate getUser() to DBA_USER
        pushSubject(pool.getSecurityManager().getSystemSubject());
        // start a transaction
        final TransactionManager transact = pool.getTransactionManager();
        // create a name for the temporary document
        final XmldbURI docName = XmldbURI.create(MessageDigester.md5(Thread.currentThread().getName() + System.currentTimeMillis(), false) + ".xml");
        // get the temp collection
        try (final Txn transaction = transact.beginTransaction();
            final ManagedCollectionLock tempCollectionLock = lockManager.acquireCollectionWriteLock(XmldbURI.TEMP_COLLECTION_URI)) {
            // if temp collection does not exist, creates temp collection (with write lock in Txn)
            final Tuple2<Boolean, Collection> createdOrExistingTemp = getOrCreateTempCollection(transaction);
            if (createdOrExistingTemp == null) {
                LOG.error("Failed to create temporary collection");
                transact.abort(transaction);
                return null;
            }
            final Collection temp = createdOrExistingTemp._2;
            // create a temporary document
            try (final ManagedDocumentLock docLock = lockManager.acquireDocumentWriteLock(temp.getURI().append(docName))) {
                final int tmpDocId = getNextResourceId(transaction);
                final Permission permission = PermissionFactory.getDefaultResourcePermission(getBrokerPool().getSecurityManager());
                permission.setMode(Permission.DEFAULT_TEMPORARY_DOCUMENT_PERM);
                final DocumentImpl targetDoc = new DocumentImpl(pool, temp, tmpDocId, docName, permission, 0, null, System.currentTimeMillis(), null, null, null);
                // index the temporary document
                final DOMIndexer indexer = new DOMIndexer(this, transaction, doc, targetDoc);
                indexer.scan();
                indexer.store();
                // store the temporary document
                temp.addDocument(transaction, this, targetDoc);
                storeXMLResource(transaction, targetDoc);
                saveCollection(transaction, temp);
                // NOTE: early release of Collection lock inline with Asymmetrical Locking scheme
                temp.close();
                flush();
                closeDocument();
                // commit the transaction
                transact.commit(transaction);
                return targetDoc;
            }
        } catch (final Exception e) {
            LOG.error("Failed to store temporary fragment: {}", e.getMessage(), e);
        }
    } finally {
        // restore the user
        popSubject();
    }
    return null;
}