Examples with TriggerException org.exist.collections.triggers.TriggerException used on opensource projects

Example 6 with TriggerException

use of org.exist.collections.triggers.TriggerException in project exist by eXist-db.

the class ExistDocument method unlock.

/**
 * Unlock document in database.
 */
void unlock() throws PermissionDeniedException, DocumentNotLockedException, EXistException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("unlock {}", xmldbUri);
    }
    final TransactionManager txnManager = brokerPool.getTransactionManager();
    // Try to get document
    try (final DBBroker broker = brokerPool.get(Optional.ofNullable(subject));
        final Txn txn = txnManager.beginTransaction();
        final LockedDocument lockedDocument = broker.getXMLResource(xmldbUri, LockMode.WRITE_LOCK)) {
        final DocumentImpl document = lockedDocument.getDocument();
        if (document == null) {
            final String msg = String.format("No resource found for path: %s", xmldbUri);
            LOG.debug(msg);
            throw new EXistException(msg);
        }
        // Get current userlock
        Account lock = document.getUserLock();
        // Check if Resource is already locked.
        if (lock == null) {
            LOG.debug("Resource {} is not locked.", xmldbUri);
            throw new DocumentNotLockedException("" + xmldbUri);
        }
        // Check if Resource is from subject
        if (!lock.getName().equals(subject.getName()) && !subject.hasDbaRole()) {
            LOG.debug("Resource lock is from user {}", lock.getName());
            throw new PermissionDeniedException(lock.getName());
        }
        // Update document
        document.setUserLock(null);
        document.setLockToken(null);
        // Make it persistant
        broker.storeMetadata(txn, document);
        txnManager.commit(txn);
    } 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 7 with TriggerException

use of org.exist.collections.triggers.TriggerException in project exist by eXist-db.

the class ExistDocument method delete.

/**
 * Remove document from database.
 */
void delete() {
    if (LOG.isDebugEnabled()) {
        LOG.debug("Deleting {}", xmldbUri);
    }
    // Need to split path into collection and document name
    final XmldbURI collName = xmldbUri.removeLastSegment();
    final XmldbURI docName = xmldbUri.lastSegment();
    final TransactionManager txnManager = brokerPool.getTransactionManager();
    try (final DBBroker broker = brokerPool.get(Optional.ofNullable(subject));
        final Txn txn = txnManager.beginTransaction();
        final Collection collection = broker.openCollection(collName, LockMode.WRITE_LOCK)) {
        // Open collection if possible, else abort
        if (collection == null) {
            LOG.debug("Collection does not exist");
            txnManager.abort(txn);
            return;
        }
        // Open document if possible, else abort
        try (final LockedDocument lockedResource = collection.getDocumentWithLock(broker, docName, LockMode.WRITE_LOCK)) {
            if (lockedResource == null) {
                LOG.debug("No resource found for path: {}", xmldbUri);
                txnManager.abort(txn);
                return;
            }
            final DocumentImpl resource = lockedResource.getDocument();
            if (resource.getResourceType() == DocumentImpl.BINARY_FILE) {
                collection.removeBinaryResource(txn, broker, resource.getFileURI());
            } else {
                collection.removeXMLResource(txn, broker, resource.getFileURI());
            }
            // NOTE: early release of Collection lock inline with Asymmetrical Locking scheme
            collection.close();
            // Commit change
            txnManager.commit(txn);
            if (LOG.isDebugEnabled()) {
                LOG.debug("Document deleted sucessfully");
            }
        }
    } catch (final LockException e) {
        LOG.error("Resource is locked.", e);
    } catch (final EXistException | IOException | TriggerException | PermissionDeniedException e) {
        LOG.error(e);
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Finished delete");
        }
    }
}

Example 8 with TriggerException

use of org.exist.collections.triggers.TriggerException in project exist by eXist-db.

the class ExistCollection method delete.

/*
     * Delete document or collection.
     */
void delete() {
    if (LOG.isDebugEnabled()) {
        LOG.debug("Deleting '{}'", xmldbUri);
    }
    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)) {
        // Open collection if possible, else abort
        if (collection == null) {
            txnManager.abort(txn);
            return;
        }
        // Remove collection
        broker.removeCollection(txn, collection);
        // Commit change
        txnManager.commit(txn);
        if (LOG.isDebugEnabled()) {
            LOG.debug("Document deleted sucessfully");
        }
    } catch (EXistException | IOException | PermissionDeniedException | TriggerException e) {
        LOG.error(e);
    } finally {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Finished delete");
        }
    }
}

Example 9 with TriggerException

use of org.exist.collections.triggers.TriggerException in project exist by eXist-db.

the class Insert method eval.

/* (non-Javadoc)
     * @see org.exist.xquery.AbstractExpression#eval(org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
     */
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().start(this);
        context.getProfiler().message(this, Profiler.DEPENDENCIES, "DEPENDENCIES", Dependency.getDependenciesName(this.getDependencies()));
        if (contextSequence != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
        }
        if (contextItem != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
        }
    }
    if (contextItem != null) {
        contextSequence = contextItem.toSequence();
    }
    Sequence contentSeq = value.eval(contextSequence);
    if (contentSeq.isEmpty()) {
        throw new XPathException(this, Messages.getMessage(Error.UPDATE_EMPTY_CONTENT));
    }
    final Sequence inSeq = select.eval(contextSequence);
    /* If we try and Insert a node at an invalid location,
         * trap the error in a context variable,
         * this is then accessible from xquery via. the context extension module - deliriumsky
         * TODO: This trapping could be expanded further - basically where XPathException is thrown from thiss class
         * TODO: Maybe we could provide more detailed messages in the trap, e.g. couldnt insert node `xyz` into `abc` becuase... this would be nicer for the end user of the xquery application 
         */
    if (!Type.subTypeOf(inSeq.getItemType(), Type.NODE)) {
        // Indicate the failure to perform this update by adding it to the sequence in the context variable XQueryContext.XQUERY_CONTEXTVAR_XQUERY_UPDATE_ERROR
        ValueSequence prevUpdateErrors = null;
        final XPathException xpe = new XPathException(this, Messages.getMessage(Error.UPDATE_SELECT_TYPE));
        final Object ctxVarObj = context.getAttribute(XQueryContext.XQUERY_CONTEXTVAR_XQUERY_UPDATE_ERROR);
        if (ctxVarObj == null) {
            prevUpdateErrors = new ValueSequence();
        } else {
            prevUpdateErrors = (ValueSequence) XPathUtil.javaObjectToXPath(ctxVarObj, context);
        }
        prevUpdateErrors.add(new StringValue(xpe.getMessage()));
        context.setAttribute(XQueryContext.XQUERY_CONTEXTVAR_XQUERY_UPDATE_ERROR, prevUpdateErrors);
        if (!inSeq.isEmpty()) {
            // TODO: should we trap this instead of throwing an exception - deliriumsky?
            throw xpe;
        }
    }
    if (!inSeq.isEmpty()) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Found: {} nodes", inSeq.getItemCount());
        }
        context.pushInScopeNamespaces();
        contentSeq = deepCopy(contentSeq);
        // start a transaction
        try (final Txn transaction = getTransaction()) {
            final StoredNode[] ql = selectAndLock(transaction, inSeq);
            final NotificationService notifier = context.getBroker().getBrokerPool().getNotificationService();
            final NodeList contentList = seq2nodeList(contentSeq);
            for (final StoredNode node : ql) {
                final DocumentImpl doc = node.getOwnerDocument();
                if (!doc.getPermissions().validate(context.getSubject(), Permission.WRITE)) {
                    throw new PermissionDeniedException("User '" + context.getSubject().getName() + "' does not have permission to write to the document '" + doc.getDocumentURI() + "'!");
                }
                // update the document
                if (mode == INSERT_APPEND) {
                    node.appendChildren(transaction, contentList, -1);
                } else {
                    final NodeImpl parent = (NodeImpl) getParent(node);
                    switch(mode) {
                        case INSERT_BEFORE:
                            parent.insertBefore(transaction, contentList, node);
                            break;
                        case INSERT_AFTER:
                            parent.insertAfter(transaction, contentList, node);
                            break;
                    }
                }
                doc.setLastModified(System.currentTimeMillis());
                modifiedDocuments.add(doc);
                context.getBroker().storeXMLResource(transaction, doc);
                notifier.notifyUpdate(doc, UpdateListener.UPDATE);
            }
            finishTriggers(transaction);
            // commit the transaction
            transaction.commit();
        } catch (final PermissionDeniedException | EXistException | LockException | TriggerException e) {
            throw new XPathException(this, e.getMessage(), e);
        } finally {
            unlockDocuments();
            context.popInScopeNamespaces();
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", Sequence.EMPTY_SEQUENCE);
    }
    return Sequence.EMPTY_SEQUENCE;
}

Example 10 with TriggerException

use of org.exist.collections.triggers.TriggerException in project exist by eXist-db.

the class Update method eval.

/* (non-Javadoc)
     * @see org.exist.xquery.AbstractExpression#eval(org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
     */
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().start(this);
        context.getProfiler().message(this, Profiler.DEPENDENCIES, "DEPENDENCIES", Dependency.getDependenciesName(this.getDependencies()));
        if (contextSequence != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
        }
        if (contextItem != null) {
            context.getProfiler().message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
        }
    }
    if (contextItem != null) {
        contextSequence = contextItem.toSequence();
    }
    final Sequence contentSeq = value.eval(contextSequence);
    if (contentSeq.isEmpty()) {
        throw new XPathException(this, Messages.getMessage(Error.UPDATE_EMPTY_CONTENT));
    }
    final Sequence inSeq = select.eval(contextSequence);
    /* If we try and Update a node at an invalid location,
         * trap the error in a context variable,
         * this is then accessible from xquery via. the context extension module - deliriumsky
         * TODO: This trapping could be expanded further - basically where XPathException is thrown from thiss class
         * TODO: Maybe we could provide more detailed messages in the trap, e.g. couldnt update node `xyz` into `abc` becuase... this would be nicer for the end user of the xquery application
         */
    if (!Type.subTypeOf(inSeq.getItemType(), Type.NODE)) {
        // Indicate the failure to perform this update by adding it to the sequence in the context variable XQueryContext.XQUERY_CONTEXTVAR_XQUERY_UPDATE_ERROR
        ValueSequence prevUpdateErrors = null;
        final XPathException xpe = new XPathException(this, Messages.getMessage(Error.UPDATE_SELECT_TYPE));
        final Object ctxVarObj = context.getAttribute(XQueryContext.XQUERY_CONTEXTVAR_XQUERY_UPDATE_ERROR);
        if (ctxVarObj == null) {
            prevUpdateErrors = new ValueSequence();
        } else {
            prevUpdateErrors = (ValueSequence) XPathUtil.javaObjectToXPath(ctxVarObj, context);
        }
        prevUpdateErrors.add(new StringValue(xpe.getMessage()));
        context.setAttribute(XQueryContext.XQUERY_CONTEXTVAR_XQUERY_UPDATE_ERROR, prevUpdateErrors);
        if (!inSeq.isEmpty()) {
            // TODO: should we trap this instead of throwing an exception - deliriumsky?
            throw xpe;
        }
    }
    if (!inSeq.isEmpty()) {
        context.pushInScopeNamespaces();
        // start a transaction
        try (final Txn transaction = getTransaction()) {
            final NotificationService notifier = context.getBroker().getBrokerPool().getNotificationService();
            final StoredNode[] ql = selectAndLock(transaction, inSeq);
            for (final StoredNode node : ql) {
                final DocumentImpl doc = node.getOwnerDocument();
                if (!doc.getPermissions().validate(context.getSubject(), Permission.WRITE)) {
                    throw new XPathException(this, "User '" + context.getSubject().getName() + "' does not have permission to write to the document '" + doc.getDocumentURI() + "'!");
                }
                // update the document
                switch(node.getNodeType()) {
                    case Node.ELEMENT_NODE:
                        final NodeListImpl content = new NodeListImpl();
                        for (final SequenceIterator j = contentSeq.iterate(); j.hasNext(); ) {
                            final Item next = j.nextItem();
                            if (Type.subTypeOf(next.getType(), Type.NODE)) {
                                content.add(((NodeValue) next).getNode());
                            } else {
                                final TextImpl text = new TextImpl(next.getStringValue());
                                content.add(text);
                            }
                        }
                        ((ElementImpl) node).update(transaction, content);
                        break;
                    case Node.TEXT_NODE:
                        final ElementImpl textParent = (ElementImpl) node.getParentNode();
                        final TextImpl text = new TextImpl(contentSeq.getStringValue());
                        text.setOwnerDocument(doc);
                        textParent.updateChild(transaction, node, text);
                        break;
                    case Node.ATTRIBUTE_NODE:
                        final ElementImpl attrParent = (ElementImpl) ((Attr) node).getOwnerElement();
                        if (attrParent == null) {
                            LOG.warn("parent node not found for {}", node.getNodeId());
                            break;
                        }
                        final AttrImpl attr = (AttrImpl) node;
                        final AttrImpl attribute = new AttrImpl(attr.getQName(), contentSeq.getStringValue(), context.getBroker().getBrokerPool().getSymbols());
                        attribute.setOwnerDocument(doc);
                        attrParent.updateChild(transaction, node, attribute);
                        break;
                    default:
                        throw new XPathException(this, "unsupported node-type");
                }
                doc.setLastModified(System.currentTimeMillis());
                modifiedDocuments.add(doc);
                context.getBroker().storeXMLResource(transaction, doc);
                notifier.notifyUpdate(doc, UpdateListener.UPDATE);
            }
            finishTriggers(transaction);
            // commit the transaction
            transaction.commit();
        } catch (final LockException | EXistException | TriggerException e) {
            throw new XPathException(this, e.getMessage(), e);
        } finally {
            unlockDocuments();
            context.popInScopeNamespaces();
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", Sequence.EMPTY_SEQUENCE);
    }
    return Sequence.EMPTY_SEQUENCE;
}