Examples with XPathExpressionException javax.xml.xpath.XPathExpressionException used on opensource projects

Example 1 with XPathExpressionException

use of javax.xml.xpath.XPathExpressionException in project camel by apache.

the class XPathBuilder method evaluateAs.

/**
     * Evaluates the expression as the given result type
     */
protected Object evaluateAs(Exchange exchange, QName resultQName) {
    // pool a pre compiled expression from pool
    XPathExpression xpathExpression = pool.poll();
    if (xpathExpression == null) {
        LOG.trace("Creating new XPathExpression as none was available from pool");
        // no avail in pool then create one
        try {
            xpathExpression = createXPathExpression();
        } catch (XPathExpressionException e) {
            throw new InvalidXPathExpression(getText(), e);
        } catch (Exception e) {
            throw new RuntimeExpressionException("Cannot create xpath expression", e);
        }
    } else {
        LOG.trace("Acquired XPathExpression from pool");
    }
    try {
        if (logNamespaces && LOG.isInfoEnabled()) {
            logNamespaces(exchange);
        }
        return doInEvaluateAs(xpathExpression, exchange, resultQName);
    } finally {
        // release it back to the pool
        pool.add(xpathExpression);
        LOG.trace("Released XPathExpression back to pool");
    }
}

Example 2 with XPathExpressionException

use of javax.xml.xpath.XPathExpressionException in project moco by dreamhead.

the class XPathRequestExtractor method doExtract.

@Override
protected Optional<String[]> doExtract(final HttpRequest request) {
    try {
        Optional<InputSource> source = helper.extractAsInputSource(request, extractor);
        if (!source.isPresent()) {
            return absent();
        }
        NodeList list = (NodeList) xPathExpression.evaluate(source.get(), XPathConstants.NODESET);
        if (list.getLength() == 0) {
            return absent();
        }
        return doExtract(list);
    } catch (XPathExpressionException e) {
        return absent();
    }
}

Example 3 with XPathExpressionException

use of javax.xml.xpath.XPathExpressionException in project qi4j-sdk by Qi4j.

the class RssReaderTest method testReadRssFeed.

@Test
public void testReadRssFeed() {
    Client client = new Client(Protocol.HTTPS);
    Reference ref = new Reference("https://github.com/Qi4j/qi4j-sdk/commits/develop.atom");
    ContextResourceClientFactory contextResourceClientFactory = module.newObject(ContextResourceClientFactory.class, client);
    contextResourceClientFactory.registerResponseReader(new ResponseReader() {

        @Override
        public Object readResponse(Response response, Class<?> resultType) throws ResourceException {
            if (resultType.equals(Document.class)) {
                try {
                    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
                    documentBuilderFactory.setNamespaceAware(false);
                    return documentBuilderFactory.newDocumentBuilder().parse(response.getEntity().getStream());
                } catch (Exception e) {
                    throw new ResourceException(e);
                }
            }
            return null;
        }
    });
    contextResourceClientFactory.setErrorHandler(new ErrorHandler().onError(ErrorHandler.RECOVERABLE_ERROR, new ResponseHandler() {

        @Override
        public HandlerCommand handleResponse(Response response, ContextResourceClient client) {
            System.out.println(">> REFRESH on recoverable error: " + response.getStatus());
            return refresh();
        }
    }));
    crc = contextResourceClientFactory.newClient(ref);
    crc.onResource(new ResultHandler<Document>() {

        Iterator<Node> itemNodes;

        @Override
        public HandlerCommand handleResult(Document result, ContextResourceClient client) {
            try {
                final XPath xPath = XPathFactory.newInstance().newXPath();
                System.out.println("== " + xPath.evaluate("feed/title", result) + " ==");
                final NodeList nodes = (NodeList) xPath.evaluate("feed/entry", result, XPathConstants.NODESET);
                List<Node> items = new ArrayList<>();
                for (int i = 0; i < nodes.getLength(); i++) {
                    items.add(nodes.item(i));
                }
                itemNodes = items.iterator();
                return processEntry(xPath);
            } catch (XPathExpressionException e) {
                throw new ResourceException(e);
            }
        }

        private HandlerCommand processEntry(final XPath xPath) throws XPathExpressionException {
            if (!itemNodes.hasNext()) {
                return null;
            }
            Node item = itemNodes.next();
            String title = xPath.evaluate("title", item);
            String detailUrl = xPath.evaluate("link/@href", item);
            System.out.println("-- " + title + " --");
            System.out.println("-- " + detailUrl + " --");
            return processEntry(xPath);
        }
    });
    crc.start();
}

Example 4 with XPathExpressionException

use of javax.xml.xpath.XPathExpressionException in project databus by linkedin.

the class GGXMLTrailTransactionFinder method xpathQuery.

private void xpathQuery() throws DatabusTrailFileParseException {
    try {
        //Set SCN
        InputSource source = new InputSource(new StringReader(_currTxnStr.toString()));
        // count time consumed by XML parsing
        _queryRateMonitor.resume();
        Object result = _expr.evaluate(source, XPathConstants.NODESET);
        _queryRateMonitor.ticks(_currTxnStr.length());
        _queryRateMonitor.suspend();
        NodeList nodes = (NodeList) result;
        for (int i = 0; i < nodes.getLength(); i++) {
            long newScn = Long.parseLong((nodes.item(i).getNodeValue().trim()));
            _minScn = Math.min(_minScn, newScn);
            _maxScn = Math.max(_maxScn, newScn);
        }
    } catch (XPathExpressionException xpxe) {
        throw new DatabusTrailFileParseException("Got XPath exception for trail-file entry: " + _currTxnStr, xpxe);
    } catch (NumberFormatException nfe) {
        throw new DatabusTrailFileParseException("Got parseLong() exception for trail-file entry: " + _currTxnStr, nfe);
    }
}

Example 5 with XPathExpressionException

use of javax.xml.xpath.XPathExpressionException in project openhab1-addons by openhab.

the class Tr064Comm method readAllServices.

/***
     * Connects to fbox service xml to get a list of all services
     * which are offered by TR064. Saves it into local list
     */
private void readAllServices() {
    Document xml = getFboxXmlResponse(_url + "/" + TR064DOWNLOADFILE);
    if (xml == null) {
        logger.error("Could not read xml response services");
        return;
    }
    // get all service nodes
    NodeList nlServices = xml.getElementsByTagName("service");
    Node currentNode = null;
    XPath xPath = XPathFactory.newInstance().newXPath();
    for (int i = 0; i < nlServices.getLength(); i++) {
        // iterate over all services fbox offered us
        currentNode = nlServices.item(i);
        Tr064Service trS = new Tr064Service();
        try {
            trS.setControlUrl((String) xPath.evaluate("controlURL", currentNode, XPathConstants.STRING));
            trS.setEventSubUrl((String) xPath.evaluate("eventSubURL", currentNode, XPathConstants.STRING));
            trS.setScpdurl((String) xPath.evaluate("SCPDURL", currentNode, XPathConstants.STRING));
            trS.setServiceId((String) xPath.evaluate("serviceId", currentNode, XPathConstants.STRING));
            trS.setServiceType((String) xPath.evaluate("serviceType", currentNode, XPathConstants.STRING));
        } catch (XPathExpressionException e) {
            logger.debug("Could not parse service {}", currentNode.getTextContent());
            e.printStackTrace();
        }
        _alServices.add(trS);
    }
}