Examples with DocumentImpl org.exist.dom.persistent.DocumentImpl used on opensource projects

Example 71 with DocumentImpl

use of org.exist.dom.persistent.DocumentImpl in project exist by eXist-db.

the class ExistDocument method lock.

/**
 * Lock document.
 *
 * @param inputToken Lock token.
 * @return Input lock token.
 * @throws PermissionDeniedException Permission denied
 * @throws DocumentAlreadyLockedException Document is already locked
 * @throws EXistException Generic existdb exception
 */
public LockToken lock(LockToken inputToken) throws PermissionDeniedException, DocumentAlreadyLockedException, EXistException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("create lock {}", xmldbUri);
    }
    // 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. @@ToDo
        if (userLock != null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Resource was already locked, ignored.");
            }
        }
        if (userLock != null && userLock.getName() != null && !userLock.getName().equals(subject.getName()) && !subject.hasDbaRole()) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Resource is locked by user {}.", userLock.getName());
            }
            throw new PermissionDeniedException(userLock.getName());
        }
        // Check for request for shared lock. @@TODO
        if (inputToken.getScope() == LockToken.LockScope.SHARED) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Shared locks are not implemented.");
            }
            throw new EXistException("Shared locks are not implemented.");
        }
        // Update locktoken
        inputToken.setOwner(subject.getName());
        inputToken.createOpaqueLockToken();
        // inputToken.setTimeOut(inputToken.getTimeOut());
        inputToken.setTimeOut(LockToken.LOCK_TIMEOUT_INFINITE);
        // Update document
        document.setLockToken(inputToken);
        document.setUserLock(subject);
        // Make token persistant
        final TransactionManager txnManager = brokerPool.getTransactionManager();
        try (final Txn txn = txnManager.beginTransaction()) {
            broker.storeMetadata(txn, document);
            txnManager.commit(txn);
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Successfully retrieved token");
        }
        return inputToken;
    } catch (EXistException | PermissionDeniedException e) {
        LOG.error(e);
        throw e;
    } catch (TriggerException e) {
        LOG.error(e);
        throw new EXistException(e);
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Finished create lock");
        }
    }
}

Example 72 with DocumentImpl

use of org.exist.dom.persistent.DocumentImpl in project exist by eXist-db.

the class ExistDocument method stream.

/**
 * Stream document to framework.
 *
 * @param os Outputstream.
 * @throws IOException IO exception
 * @throws PermissionDeniedException permission is denied.
 */
public void stream(OutputStream os) throws IOException, PermissionDeniedException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("Stream started");
    }
    long startTime = System.currentTimeMillis();
    try (final DBBroker broker = brokerPool.get(Optional.ofNullable(subject))) {
        // If it is not a collection, check if it is a document
        try (final LockedDocument lockedDocument = broker.getXMLResource(xmldbUri, LockMode.READ_LOCK)) {
            final DocumentImpl document = lockedDocument.getDocument();
            if (document.getResourceType() == DocumentImpl.XML_FILE) {
                try {
                    serialize(broker, document, os);
                    os.flush();
                } catch (SAXException e) {
                    LOG.error(e);
                    throw new IOException(String.format("Error while serializing XML document: %s", e.getMessage()), e);
                }
            } else {
                // Stream NON-XML document
                broker.readBinaryResource((BinaryDocument) document, os);
                os.flush();
            }
        }
    } catch (EXistException e) {
        LOG.error(e);
        throw new IOException(e.getMessage());
    } catch (PermissionDeniedException e) {
        LOG.error(e);
        throw e;
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Stream stopped, duration {} msec.", System.currentTimeMillis() - startTime);
        }
    }
}

Example 73 with DocumentImpl

use of org.exist.dom.persistent.DocumentImpl in project exist by eXist-db.

the class ExistDocument method getCurrentLock.

/**
 * Get lock token from database.
 *
 * @return current lock token.
 */
public LockToken getCurrentLock() {
    if (LOG.isDebugEnabled()) {
        LOG.debug("Get current lock {}", xmldbUri);
    }
    try (final DBBroker broker = brokerPool.get(Optional.ofNullable(subject));
        final LockedDocument lockedDocument = broker.getXMLResource(xmldbUri, LockMode.READ_LOCK)) {
        final DocumentImpl document = lockedDocument.getDocument();
        if (document == null) {
            LOG.debug("No resource found for path: {}", xmldbUri);
            return null;
        }
        // TODO consider. A Webdav lock can be set without subject lock.
        Account lock = document.getUserLock();
        if (lock == null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Document {} does not contain userlock", xmldbUri);
            }
            return null;
        }
        // Retrieve Locktoken from document metadata
        org.exist.dom.persistent.LockToken token = document.getLockToken();
        if (token == null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Document meta data does not contain a LockToken");
            }
            return null;
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Successfully retrieved token");
        }
        return token;
    } catch (EXistException | PermissionDeniedException e) {
        LOG.error(e);
        return null;
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Finished probe lock");
        }
    }
}

Example 74 with DocumentImpl

use of org.exist.dom.persistent.DocumentImpl 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 75 with DocumentImpl

use of org.exist.dom.persistent.DocumentImpl 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");
        }
    }
}