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

Example 21 with TriggerException

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

the class RESTServer method doPut.

/**
 * Handles PUT requests. The request content is stored as a new resource at
 * the specified location. If the resource already exists, it is overwritten
 * if the user has write permissions.
 *
 * The resource type depends on the content type specified in the HTTP
 * header. The content type will be looked up in the global mime table. If
 * the corresponding mime type is not a know XML mime type, the resource
 * will be stored as a binary resource.
 *
 * @param broker the database broker
 * @param transaction the database transaction
 * @param request the request
 * @param response the response
 * @param path the path of the request
 *
 * @throws BadRequestException if a bad request is made
 * @throws PermissionDeniedException if the request has insufficient permissions
 * @throws NotFoundException if the request resource cannot be found
 * @throws IOException if an I/O error occurs
 */
public void doPut(final DBBroker broker, final Txn transaction, final XmldbURI path, final HttpServletRequest request, final HttpServletResponse response) throws BadRequestException, PermissionDeniedException, IOException, NotFoundException {
    if (checkForXQueryTarget(broker, transaction, path, request, response)) {
        return;
    }
    // fourth, process the request
    final XmldbURI docUri = path.lastSegment();
    final XmldbURI collUri = path.removeLastSegment();
    if (docUri == null || collUri == null) {
        throw new BadRequestException("Bad path: " + path);
    }
    // TODO : use getOrCreateCollection() right now ?
    try (final ManagedCollectionLock managedCollectionLock = broker.getBrokerPool().getLockManager().acquireCollectionWriteLock(collUri)) {
        final Collection collection = broker.getOrCreateCollection(transaction, collUri);
        final MimeType mime;
        String contentType = request.getContentType();
        if (contentType != null) {
            final int semicolon = contentType.indexOf(';');
            if (semicolon > 0) {
                contentType = contentType.substring(0, semicolon).trim();
            }
            mime = MimeTable.getInstance().getContentType(contentType);
        } else {
            mime = MimeTable.getInstance().getContentTypeFor(docUri);
        }
        // TODO(AR) in storeDocument, if the input source has an InputStream (but is not a subclass: FileInputSource or ByteArrayInputSource), need to handle caching and reusing the input stream between validate and store
        try (final FilterInputStreamCache cache = FilterInputStreamCacheFactory.getCacheInstance(() -> (String) broker.getConfiguration().getProperty(Configuration.BINARY_CACHE_CLASS_PROPERTY), request.getInputStream());
            final CachingFilterInputStream cfis = new CachingFilterInputStream(cache)) {
            broker.storeDocument(transaction, docUri, new CachingFilterInputStreamInputSource(cfis), mime, collection);
        }
        response.setStatus(HttpServletResponse.SC_CREATED);
    // try(final FilterInputStreamCache cache = FilterInputStreamCacheFactory.getCacheInstance(() -> (String) broker.getConfiguration().getProperty(Configuration.BINARY_CACHE_CLASS_PROPERTY), request.getInputStream());
    // final InputStream cfis = new CachingFilterInputStream(cache)) {
    // 
    // if (mime.isXMLType()) {
    // cfis.mark(Integer.MAX_VALUE);
    // final IndexInfo info = collection.validateXMLResource(transaction, broker, docUri, new InputSource(cfis));
    // info.getDocument().setMimeType(contentType);
    // cfis.reset();
    // collection.store(transaction, broker, info, new InputSource(cfis));
    // response.setStatus(HttpServletResponse.SC_CREATED);
    // } else {
    // collection.addBinaryResource(transaction, broker, docUri, cfis, contentType, request.getContentLength());
    // response.setStatus(HttpServletResponse.SC_CREATED);
    // }
    // }
    } catch (final SAXParseException e) {
        throw new BadRequestException("Parsing exception at " + e.getLineNumber() + "/" + e.getColumnNumber() + ": " + e.toString());
    } catch (final TriggerException | LockException e) {
        throw new PermissionDeniedException(e.getMessage());
    } catch (final SAXException e) {
        Exception o = e.getException();
        if (o == null) {
            o = e;
        }
        throw new BadRequestException("Parsing exception: " + o.getMessage());
    } catch (final EXistException e) {
        throw new BadRequestException("Internal error: " + e.getMessage());
    }
}

Example 22 with TriggerException

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

the class RESTServer method doDelete.

public void doDelete(final DBBroker broker, final Txn transaction, final String path, final HttpServletRequest request, final HttpServletResponse response) throws PermissionDeniedException, NotFoundException, IOException, BadRequestException {
    final XmldbURI pathURI = XmldbURI.createInternal(path);
    if (checkForXQueryTarget(broker, transaction, pathURI, request, response)) {
        return;
    }
    try {
        try (final Collection collection = broker.openCollection(pathURI, LockMode.WRITE_LOCK)) {
            if (collection != null) {
                // remove the collection
                LOG.debug("removing collection {}", path);
                broker.removeCollection(transaction, collection);
                response.setStatus(HttpServletResponse.SC_OK);
            } else {
                try (final LockedDocument lockedDocument = broker.getXMLResource(pathURI, LockMode.WRITE_LOCK)) {
                    final DocumentImpl doc = lockedDocument == null ? null : lockedDocument.getDocument();
                    if (doc == null) {
                        throw new NotFoundException("No document or collection found for path: " + path);
                    } else {
                        if (!doc.getPermissions().validate(broker.getCurrentSubject(), Permission.WRITE)) {
                            throw new PermissionDeniedException("Account '" + broker.getCurrentSubject().getName() + "' not allowed requested access to document '" + pathURI + "'");
                        }
                        // remove the document
                        if (LOG.isDebugEnabled()) {
                            LOG.debug("removing document {}", path);
                        }
                        if (doc.getResourceType() == DocumentImpl.BINARY_FILE) {
                            doc.getCollection().removeBinaryResource(transaction, broker, pathURI.lastSegment());
                        } else {
                            doc.getCollection().removeXMLResource(transaction, broker, pathURI.lastSegment());
                        }
                        response.setStatus(HttpServletResponse.SC_OK);
                    }
                }
            }
        }
    } catch (final TriggerException e) {
        throw new PermissionDeniedException("Trigger failed: " + e.getMessage());
    } catch (final LockException e) {
        throw new PermissionDeniedException("Could not acquire lock: " + e.getMessage());
    }
}

Example 23 with TriggerException

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

the class Delete 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 inSeq = select.eval(contextSequence);
    /* If we try and Delete 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 delete 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()) {
        // 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)) {
                    // transact.abort(transaction);
                    throw new PermissionDeniedException("User '" + context.getSubject().getName() + "' does not have permission to write to the document '" + doc.getDocumentURI() + "'!");
                }
                // update the document
                final NodeImpl parent = (NodeImpl) getParent(node);
                if (parent == null) {
                    LOG.debug("Cannot remove the document element (no parent node)");
                    throw new XPathException(this, "It is not possible to remove the document element.");
                } else if (parent.getNodeType() != Node.ELEMENT_NODE) {
                    if (LOG.isDebugEnabled()) {
                        LOG.debug("parent = {}; {}", parent.getNodeType(), parent.getNodeName());
                    }
                    // transact.abort(transaction);
                    throw new XPathException(this, "you cannot remove the document element. Use update " + "instead");
                } else {
                    parent.removeChild(transaction, node);
                }
                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 EXistException | PermissionDeniedException | LockException | TriggerException e) {
            throw new XPathException(this, e.getMessage(), e);
        } finally {
            unlockDocuments();
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", Sequence.EMPTY_SEQUENCE);
    }
    return Sequence.EMPTY_SEQUENCE;
}

Example 24 with TriggerException

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

the class Replace 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 inSeq = select.eval(contextSequence);
    if (inSeq.isEmpty()) {
        return Sequence.EMPTY_SEQUENCE;
    }
    /* If we try and Replace 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 replace 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;
        }
    }
    // END trap Replace failure
    Sequence contentSeq = value.eval(contextSequence);
    if (contentSeq.isEmpty()) {
        throw new XPathException(this, Messages.getMessage(Error.UPDATE_EMPTY_CONTENT));
    }
    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();
        Item temp;
        TextImpl text;
        AttrImpl attribute;
        ElementImpl parent;
        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
            parent = (ElementImpl) node.getParentStoredNode();
            if (parent == null) {
                throw new XPathException(this, "The root element of a document can not be replaced with 'update replace'. " + "Please consider removing the document or use 'update value' to just replace the children of the root.");
            }
            switch(node.getNodeType()) {
                case Node.ELEMENT_NODE:
                    temp = contentSeq.itemAt(0);
                    if (!Type.subTypeOf(temp.getType(), Type.NODE)) {
                        throw new XPathException(this, Messages.getMessage(Error.UPDATE_REPLACE_ELEM_TYPE, Type.getTypeName(temp.getType())));
                    }
                    parent.replaceChild(transaction, ((NodeValue) temp).getNode(), node);
                    break;
                case Node.TEXT_NODE:
                    text = new TextImpl(contentSeq.getStringValue());
                    text.setOwnerDocument(doc);
                    parent.updateChild(transaction, node, text);
                    break;
                case Node.ATTRIBUTE_NODE:
                    final AttrImpl attr = (AttrImpl) node;
                    attribute = new AttrImpl(attr.getQName(), contentSeq.getStringValue(), context.getBroker().getBrokerPool().getSymbols());
                    attribute.setOwnerDocument(doc);
                    parent.updateChild(transaction, node, attribute);
                    break;
                default:
                    throw new EXistException("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 | PermissionDeniedException | 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;
}

Example 25 with TriggerException

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

the class Rename method eval.

@Override
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 Rename 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 rename 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()) {
        QName newQName;
        final Item item = contentSeq.itemAt(0);
        if (item.getType() == Type.QNAME) {
            newQName = ((QNameValue) item).getQName();
        } else {
            try {
                newQName = QName.parse(context, item.getStringValue());
            } catch (final QName.IllegalQNameException iqe) {
                throw new XPathException(this, ErrorCodes.XPST0081, "No namespace defined for prefix " + item.getStringValue());
            }
        }
        // start a transaction
        try (final Txn transaction = getTransaction()) {
            final StoredNode[] ql = selectAndLock(transaction, inSeq);
            final NotificationService notifier = context.getBroker().getBrokerPool().getNotificationService();
            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() + "'!");
                }
                final NodeImpl parent = (NodeImpl) getParent(node);
                // update the document
                final NamedNode newNode;
                switch(node.getNodeType()) {
                    case Node.ELEMENT_NODE:
                        newNode = new ElementImpl((ElementImpl) node);
                        break;
                    case Node.ATTRIBUTE_NODE:
                        newNode = new AttrImpl((AttrImpl) node);
                        break;
                    default:
                        throw new XPathException(this, "unsupported node-type");
                }
                newNode.setNodeName(newQName, context.getBroker().getBrokerPool().getSymbols());
                parent.updateChild(transaction, node, newNode);
                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();
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", Sequence.EMPTY_SEQUENCE);
    }
    return Sequence.EMPTY_SEQUENCE;
}