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

Example 81 with TransactionManager

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

the class ExistDocument method resourceCopyMove.

/**
 * Copy document or collection in database.
 */
void resourceCopyMove(XmldbURI destCollectionUri, String newName, Mode mode) throws EXistException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("{} {} to {} named {}", String.valueOf(mode), xmldbUri, destCollectionUri, newName);
    }
    XmldbURI newNameUri = null;
    try {
        newNameUri = XmldbURI.xmldbUriFor(newName);
    } catch (URISyntaxException ex) {
        LOG.error(ex);
        throw new EXistException(ex.getMessage());
    }
    // use WRITE_LOCK if moving or if src and dest collection are the same
    final LockMode srcCollectionLockMode = mode == Mode.MOVE || destCollectionUri.equals(xmldbUri.removeLastSegment()) ? LockMode.WRITE_LOCK : LockMode.READ_LOCK;
    DocumentImpl srcDocument = null;
    // Need to split path into collection and document name
    final XmldbURI srcCollectionUri = xmldbUri.removeLastSegment();
    final XmldbURI srdDocumentUri = xmldbUri.lastSegment();
    final TransactionManager txnManager = brokerPool.getTransactionManager();
    try (final DBBroker broker = brokerPool.get(Optional.ofNullable(subject));
        final Txn txn = txnManager.beginTransaction();
        final Collection srcCollection = broker.openCollection(srcCollectionUri, srcCollectionLockMode)) {
        // Open collection if possible, else abort
        if (srcCollection == null) {
            txnManager.abort(txn);
            // TODO throw
            return;
        }
        // Open document if possible, else abort
        srcDocument = srcCollection.getDocument(broker, srdDocumentUri);
        if (srcDocument == null) {
            LOG.debug("No resource found for path: {}", xmldbUri);
            txnManager.abort(txn);
            return;
        }
        // Open collection if possible, else abort
        try (final Collection destCollection = broker.openCollection(destCollectionUri, LockMode.WRITE_LOCK)) {
            if (destCollection == null) {
                LOG.debug("Destination collection {} does not exist.", xmldbUri);
                txnManager.abort(txn);
                return;
            }
            // Perform actial move/copy
            if (mode == Mode.COPY) {
                broker.copyResource(txn, srcDocument, destCollection, newNameUri);
            } else {
                broker.moveResource(txn, srcDocument, destCollection, newNameUri);
            }
            // Commit change
            txnManager.commit(txn);
            if (LOG.isDebugEnabled()) {
                LOG.debug("Document {}d successfully", mode);
            }
        }
    } catch (LockException e) {
        LOG.error("Resource is locked.", e);
        throw new EXistException(e.getMessage());
    } catch (EXistException e) {
        LOG.error(e);
        throw e;
    } catch (IOException | PermissionDeniedException | TriggerException e) {
        LOG.error(e);
        throw new EXistException(e.getMessage());
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Finished {}", mode);
        }
    }
}

Example 82 with TransactionManager

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

the class ExistDocument method refreshLock.

public LockToken refreshLock(String token) throws PermissionDeniedException, DocumentAlreadyLockedException, EXistException, DocumentNotLockedException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("refresh lock {}  lock={}", xmldbUri, token);
    }
    if (token == null) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("token is null");
        }
        throw new EXistException("token is null");
    }
    // Try to get document
    try (final DBBroker broker = brokerPool.get(Optional.ofNullable(subject));
        final LockedDocument lockedDocument = broker.getXMLResource(xmldbUri, LockMode.WRITE_LOCK)) {
        final DocumentImpl document = lockedDocument.getDocument();
        if (document == null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("No resource found for path: {}", xmldbUri);
            }
            // return null; // throw exception?
            throw new EXistException("No resource found.");
        }
        // Get current userlock
        Account userLock = document.getUserLock();
        // Check if Resource is already locked.
        if (userLock == null) {
            final String msg = "Resource was not locked.";
            if (LOG.isDebugEnabled()) {
                LOG.debug(msg);
            }
            throw new DocumentNotLockedException(msg);
        }
        if (userLock.getName() != null && !userLock.getName().equals(subject.getName()) && !subject.hasDbaRole()) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Resource is locked by {}", userLock.getName());
            }
            throw new PermissionDeniedException(userLock.getName());
        }
        LockToken lockToken = document.getLockToken();
        if (!token.equals(lockToken.getOpaqueLockToken())) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Token does not match");
            }
            throw new PermissionDeniedException(String.format("Token %s does not match %s", token, lockToken.getOpaqueLockToken()));
        }
        lockToken.setTimeOut(LockToken.LOCK_TIMEOUT_INFINITE);
        // Make token persistant
        final TransactionManager txnManager = brokerPool.getTransactionManager();
        try (final Txn txn = txnManager.beginTransaction()) {
            broker.storeXMLResource(txn, document);
            txnManager.commit(txn);
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Successfully retrieved token");
        }
        return lockToken;
    } catch (EXistException | PermissionDeniedException e) {
        LOG.error(e);
        throw e;
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Finished create lock");
        }
    }
}

Example 83 with TransactionManager

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

the class ExistCollection method resourceCopyMove.

void resourceCopyMove(XmldbURI destCollectionUri, String newName, Mode mode) throws EXistException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("{} '{}' to '{}' named '{}'", String.valueOf(mode), xmldbUri, destCollectionUri, newName);
    }
    XmldbURI newNameUri = null;
    try {
        newNameUri = XmldbURI.xmldbUriFor(newName);
    } catch (URISyntaxException ex) {
        LOG.error(ex);
        throw new EXistException(ex.getMessage());
    }
    // This class contains already the URI of the resource that shall be moved/copied
    XmldbURI srcCollectionUri = xmldbUri;
    // use WRITE_LOCK if moving or if src and dest collection are the same
    final LockMode srcCollectionLockMode = mode == Mode.MOVE || destCollectionUri.equals(srcCollectionUri) ? LockMode.WRITE_LOCK : LockMode.READ_LOCK;
    final TransactionManager txnManager = brokerPool.getTransactionManager();
    try (final DBBroker broker = brokerPool.get(Optional.ofNullable(subject));
        final Txn txn = txnManager.beginTransaction();
        final Collection srcCollection = broker.openCollection(srcCollectionUri, srcCollectionLockMode)) {
        // Open collection if possible, else abort
        if (srcCollection == null) {
            txnManager.abort(txn);
            // TODO throw
            return;
        }
        // Open collection if possible, else abort
        try (final Collection destCollection = broker.openCollection(destCollectionUri, LockMode.WRITE_LOCK)) {
            if (destCollection == null) {
                LOG.debug("Destination collection {} does not exist.", xmldbUri);
                txnManager.abort(txn);
                // TODO throw?
                return;
            }
            // Perform actial move/copy
            if (mode == Mode.COPY) {
                broker.copyCollection(txn, srcCollection, destCollection, newNameUri);
            } else {
                broker.moveCollection(txn, srcCollection, destCollection, newNameUri);
            }
            // Commit change
            txnManager.commit(txn);
            if (LOG.isDebugEnabled()) {
                LOG.debug("Collection {}d successfully", mode);
            }
        }
    } catch (LockException e) {
        LOG.error("Resource is locked.", e);
        throw new EXistException(e.getMessage());
    } catch (EXistException e) {
        LOG.error(e);
        throw e;
    } catch (IOException | PermissionDeniedException | TriggerException e) {
        LOG.error(e);
        throw new EXistException(e.getMessage());
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Finished {}", mode);
        }
    }
}

Example 84 with TransactionManager

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

the class ExistCollection method createFile.

public XmldbURI createFile(String newName, InputStream is, Long length, String contentType) throws IOException, PermissionDeniedException, CollectionDoesNotExistException {
    if (LOG.isDebugEnabled())
        LOG.debug("Create '{}' in '{}'", newName, xmldbUri);
    XmldbURI newNameUri = XmldbURI.create(newName);
    // Get mime, or NULL when not available
    MimeType mime = MimeTable.getInstance().getContentTypeFor(newName);
    if (mime == null) {
        mime = MimeType.BINARY_TYPE;
    }
    // XML documents are not supported a small file will be created.
    if (mime.isXMLType() && length == 0) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Creating dummy XML file for null resource lock '{}'", newNameUri);
        }
        is = new UnsynchronizedByteArrayInputStream("<null_resource/>".getBytes(StandardCharsets.UTF_8));
    }
    final TransactionManager txnManager = brokerPool.getTransactionManager();
    try (final DBBroker broker = brokerPool.get(Optional.ofNullable(subject));
        final Txn txn = txnManager.beginTransaction();
        final Collection collection = broker.openCollection(xmldbUri, LockMode.WRITE_LOCK)) {
        // by ResourceFactory
        if (collection == null) {
            LOG.debug("Collection {} does not exist", xmldbUri);
            txnManager.abort(txn);
            throw new CollectionDoesNotExistException(xmldbUri + "");
        }
        if (LOG.isDebugEnabled()) {
            if (mime.isXMLType()) {
                LOG.debug("Inserting XML document '{}'", mime.getName());
            } else {
                LOG.debug("Inserting BINARY document '{}'", mime.getName());
            }
        }
        // Stream into database
        try (final FilterInputStreamCache cache = FilterInputStreamCacheFactory.getCacheInstance(() -> (String) broker.getConfiguration().getProperty(Configuration.BINARY_CACHE_CLASS_PROPERTY), is);
            final CachingFilterInputStream cfis = new CachingFilterInputStream(cache);
            final EXistInputSource eis = new CachingFilterInputStreamInputSource(cfis)) {
            broker.storeDocument(txn, newNameUri, eis, mime, collection);
        }
        // Commit change
        txnManager.commit(txn);
        if (LOG.isDebugEnabled()) {
            LOG.debug("Document created successfully");
        }
    } catch (EXistException | SAXException e) {
        LOG.error(e);
        throw new IOException(e);
    } catch (LockException e) {
        LOG.error(e);
        throw new PermissionDeniedException(xmldbUri + "");
    } catch (IOException | PermissionDeniedException e) {
        LOG.error(e);
        throw e;
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Finished creation");
        }
    }
    // Send the result back to the client
    XmldbURI newResource = xmldbUri.append(newName);
    return newResource;
}

Example 85 with TransactionManager

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

the class DLNStorageTest 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()) {
        final Collection root = broker.getOrCreateCollection(transaction, XmldbURI.create(XmldbURI.ROOT_COLLECTION + TEST_COLLECTION));
        assertNotNull(root);
        broker.removeCollection(transaction, root);
        transact.commit(transaction);
    }
}