Example usage for javax.xml.xpath XPathExpression evaluate

List of usage examples for javax.xml.xpath XPathExpression evaluate

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  5. XPathExpression
  6. evaluate

Introduction

In this page you can find the example usage for javax.xml.xpath XPathExpression evaluate.

Prototype

public Object evaluate(InputSource source, QName returnType) throws XPathExpressionException;

Source Link

Document

Evaluate the compiled XPath expression in the context of the specified InputSource and return the result as the specified type.

Usage

From source file:org.openremote.foxycart.resources.FoxyCartResource.java

private String evaluateXPath(Document doc, String xPathExpression) {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    String text = null;/*from ww  w.  j av  a 2s . co m*/

    try {
        XPathExpression expr = xpath.compile(xPathExpression);
        text = (String) expr.evaluate(doc, XPathConstants.STRING);
    } catch (XPathExpressionException e) {
    }

    return text;
}

From source file:ch.dbs.actions.bestellung.EZBXML.java

private List<String> getJourids(final String content) {

    final List<String> result = new ArrayList<String>();

    try {//from   ww  w  . j  a v a  2 s  .com

        if (content != null) {

            final DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
            domFactory.setNamespaceAware(true);
            final DocumentBuilder builder = domFactory.newDocumentBuilder();
            final Document doc = builder.parse(new InputSource(new StringReader(content)));

            final XPathFactory factory = XPathFactory.newInstance();
            final XPath xpath = factory.newXPath();

            final XPathExpression exprJournals = xpath.compile("//journals/journal");
            final NodeList journals = (NodeList) exprJournals.evaluate(doc, XPathConstants.NODESET);

            for (int i = 0; i < journals.getLength(); i++) {
                final Node firstResultNode = journals.item(i);
                final Element journal = (Element) firstResultNode;

                final String id = journal.getAttribute("jourid");

                if (id != null) {
                    result.add(id);
                }

            }
        }

    } catch (final XPathExpressionException e) {
        LOG.error(e.toString());
    } catch (final SAXParseException e) {
        LOG.error(e.toString());
    } catch (final SAXException e) {
        LOG.error(e.toString());
    } catch (final IOException e) {
        LOG.error(e.toString());
    } catch (final ParserConfigurationException e) {
        LOG.error(e.toString());
    } catch (final Exception e) {
        LOG.error(e.toString());
    }

    return result;
}

From source file:com.sonyericsson.hudson.plugins.gerrit.trigger.spec.DuplicateGerritListenersPreloadedProjectHudsonTestCase.java

/**
 * Evaluates the xpath expression on the document and returns the node it resolves to.
 *
 * @param doc        the doc to search/*ww w  . j av a  2 s.  com*/
 * @param expression the xpath expression
 * @return the node
 * @throws XPathExpressionException if so.
 */
Node xPath(Document doc, String expression) throws XPathExpressionException {
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();
    XPathExpression expr = xpath.compile(expression);
    return (Node) expr.evaluate(doc, XPathConstants.NODE);
}

From source file:de.fzi.ALERT.actor.MessageObserver.ComplexEventObserver.JMSMessageParser.java

public Message XMLFileParse(String msgString) {

    Message message = new Message();

    try {/*from   w  w w.  ja v  a 2  s  .  c  om*/

        DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        builder.setErrorHandler(new MyErrorHandler());

        InputStream in = new ByteArrayInputStream(msgString.getBytes("UTF-8"));
        org.w3c.dom.Document doc = builder.parse(in);

        XPath xpath = XPathFactory.newInstance().newXPath();
        // XPath Query for showing all nodes value
        javax.xml.xpath.XPathExpression expr = xpath.compile("//patternID/text()");

        Object result = expr.evaluate(doc, XPathConstants.NODESET);

        NodeList nodes = (NodeList) result;
        Pattern pattern = new Pattern();
        if (nodes.getLength() > 0) {
            pattern = patternDAO.findById(nodes.item(0).getNodeValue());
        }
        if (pattern != null) {

            message.setPatternId(pattern);
            for (int i = 0; i < nodes.getLength(); i++) {
                System.out.println(nodes.item(i).getNodeValue());
            }

            javax.xml.xpath.XPathExpression expr1 = xpath.compile("//alertcomplex/*/text()");

            Object result1 = expr1.evaluate(doc, XPathConstants.NODESET);
            NodeList nodes1 = (NodeList) result1;
            String content = "";
            if (nodes.getLength() > 0) {
                for (int i = 0; i < nodes1.getLength(); i++) {
                    System.out.println("modes " + nodes1.item(i).getParentNode().getNodeName());
                    System.out.println(nodes1.item(i).getNodeValue());
                    content += nodes1.item(i).getNodeValue();
                }
            }
            message.setSubject("complex event");
            message.setSummary("default summary");
            message.setContent(content);
            message.setMsgDate(new Date());
            message.setMsgID(1);
        } else {
            message.setContent("ERROR!");
        }
    } catch (ParserConfigurationException e) {
        // TODO Auto-generated catch block
        message.setContent("ERROR!");
        System.out.println(e.getMessage());
    } catch (UnsupportedEncodingException e) {
        // TODO Auto-generated catch block
        message.setContent("ERROR!");
        System.out.println(e.getMessage());
    } catch (SAXException e) {
        // TODO Auto-generated catch block
        message.setContent("ERROR!");
        System.out.println(e.getMessage());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        message.setContent("ERROR!");
        System.out.println(e.getMessage());
    } catch (XPathExpressionException e) {
        // TODO Auto-generated catch block
        message.setContent("ERROR!");
        System.out.println(e.getMessage());
    }

    return message;

}

From source file:cz.fi.muni.xkremser.editor.server.AuthenticationServlet.java

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    HttpSession session = req.getSession(true);
    String url = (String) session.getAttribute(HttpCookies.TARGET_URL);
    String root = (URLS.LOCALHOST() ? "http://" : "https://") + req.getServerName() + (URLS.LOCALHOST()
            ? (req.getServerPort() == 80 || req.getServerPort() == 443 ? "" : (":" + req.getServerPort()))
            : "") + URLS.ROOT() + (URLS.LOCALHOST() ? "?gwt.codesvr=127.0.0.1:9997" : "");
    String authHeader = req.getHeader("Authorization");
    if (authHeader != null) {
        String decodedHeader = decode(req, authHeader);
        String pass = configuration.getHttpBasicPass();
        if (pass == null || "".equals(pass.trim()) || pass.length() < 4) {
            requrireAuthentication(resp);
        }// w w  w.ja v a  2  s . c o  m
        if (decodedHeader.equals(ALLOWED_PREFIX + pass)) {
            session.setAttribute(HttpCookies.TARGET_URL, null);
            session.setAttribute(HttpCookies.SESSION_ID_KEY,
                    "https://www.google.com/profiles/109255519115168093543");
            session.setAttribute(HttpCookies.NAME_KEY, "admin");
            session.setAttribute(HttpCookies.ADMIN, HttpCookies.ADMIN_YES);
            ACCESS_LOGGER.info("LOG IN: [" + FORMATTER.format(new Date()) + "] User "
                    + decodedHeader.substring(0, decodedHeader.indexOf(":")) + " with openID BASIC_AUTH and IP "
                    + req.getRemoteAddr());
            URLS.redirect(resp, url == null ? root : url);
            return;
        } else {
            requrireAuthentication(resp);
            return;
        }
    }
    session.setAttribute(HttpCookies.TARGET_URL, null);
    String token = req.getParameter("token");

    String appID = configuration.getOpenIDApiKey();
    String openIdurl = configuration.getOpenIDApiURL();
    RPX rpx = new RPX(appID, openIdurl);
    Element e = null;
    try {
        e = rpx.authInfo(token);
    } catch (ConnectionException connEx) {
        requrireAuthentication(resp);
        return;
    }
    String idXPath = "//identifier";
    String nameXPath = "//displayName";
    XPathFactory xpfactory = XPathFactory.newInstance();
    XPath xpath = xpfactory.newXPath();
    String identifier = null;
    String name = null;
    try {
        XPathExpression expr1 = xpath.compile(idXPath);
        XPathExpression expr2 = xpath.compile(nameXPath);
        NodeList nodes1 = (NodeList) expr1.evaluate(e.getOwnerDocument(), XPathConstants.NODESET);
        NodeList nodes2 = (NodeList) expr2.evaluate(e.getOwnerDocument(), XPathConstants.NODESET);
        Element el = null;
        if (nodes1.getLength() != 0) {
            el = (Element) nodes1.item(0);
        }
        if (el != null) {
            identifier = el.getTextContent();
        }
        if (nodes2.getLength() != 0) {
            el = (Element) nodes2.item(0);
        }
        if (el != null) {
            name = el.getTextContent();
        }
    } catch (XPathExpressionException e1) {
        e1.printStackTrace();
    }
    if (identifier != null && !"".equals(identifier)) {
        ACCESS_LOGGER.info("LOG IN: [" + FORMATTER.format(new Date()) + "] User " + name + " with openID "
                + identifier + " and IP " + req.getRemoteAddr());
        int userStatus = UserDAO.UNKNOWN;
        try {
            userStatus = userDAO.isSupported(identifier);
        } catch (DatabaseException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        switch (userStatus) {
        case UserDAO.UNKNOWN:
            // TODO handle DB error (inform user)
            break;
        case UserDAO.USER:
            // HttpCookies.setCookie(req, resp, HttpCookies.SESSION_ID_KEY,
            // identifier);
            session.setAttribute(HttpCookies.SESSION_ID_KEY, identifier);
            session.setAttribute(HttpCookies.NAME_KEY, name);
            URLS.redirect(resp, url == null ? root : url);
            break;
        case UserDAO.ADMIN:
            // HttpCookies.setCookie(req, resp, HttpCookies.SESSION_ID_KEY,
            // identifier);
            // HttpCookies.setCookie(req, resp, HttpCookies.ADMIN,
            // HttpCookies.ADMIN_YES);
            session.setAttribute(HttpCookies.SESSION_ID_KEY, identifier);
            session.setAttribute(HttpCookies.NAME_KEY, name);
            session.setAttribute(HttpCookies.ADMIN, HttpCookies.ADMIN_YES);
            URLS.redirect(resp, url == null ? root : url);
            break;
        case UserDAO.NOT_PRESENT:
        default:
            session.setAttribute(HttpCookies.UNKNOWN_ID_KEY, identifier);
            session.setAttribute(HttpCookies.NAME_KEY, name);
            URLS.redirect(resp, root + URLS.INFO_PAGE);
            break;
        }
    } else {
        URLS.redirect(resp, root + (URLS.LOCALHOST() ? URLS.LOGIN_LOCAL_PAGE : URLS.LOGIN_PAGE));
    }

    // System.out.println("ID:" + identifier);

    // if user is supported redirect to homepage else show him a page that he
    // has to be added to system first by admin

}

From source file:ch.dbs.actions.bestellung.EZBVascoda.java

/**
 * This class uses the EZB API from//from   ww w .j  av  a  2s. c om
 * http://ezb.uni-regensburg.de/ezeit/vascoda/openURL?pid=format%3Dxml. This
 * API differs from the EZB/ZDB API (http://services.dnb.de). It brings back
 * no print information and other information for electronic holdings. It
 * seems to be more stable.
 */
public EZBForm read(final String content) {

    final EZBForm ezbform = new EZBForm();

    try {

        if (content != null) {

            final DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
            domFactory.setNamespaceAware(true);
            final DocumentBuilder builder = domFactory.newDocumentBuilder();
            final Document doc = builder.parse(new InputSource(new StringReader(content)));

            final XPathFactory factory = XPathFactory.newInstance();
            final XPath xpath = factory.newXPath();

            // issns
            final XPathExpression exprRefE = xpath.compile("//OpenURLResponse");
            final NodeList resultListRefE = (NodeList) exprRefE.evaluate(doc, XPathConstants.NODESET);

            String title = null;
            String levelAvailable = null;

            for (int i = 0; i < resultListRefE.getLength(); i++) {
                final Node firstResultNode = resultListRefE.item(i);
                final Element result = (Element) firstResultNode;

                // First ISSN
                //                    final String issn = getValue(result.getElementsByTagName("issn"));
                //                    System.out.println(issn);

                // title
                // unfortunately this will bring back the title sent by OpenURL, unless if not
                // specified in the OpenURL request. It then brings back the title form the EZB...!
                title = getValue(result.getElementsByTagName("title"));
                if (title != null) {
                    title = Jsoup.clean(title, Whitelist.none());
                    title = Jsoup.parse(title).text();
                }

                // this is the overall level of the best match and not the level of each individual result
                final NodeList levelNode = result.getElementsByTagName("available");
                final Element levelElement = (Element) levelNode.item(0);
                if (levelElement != null) {
                    levelAvailable = levelElement.getAttribute("level");
                }

            }

            // electronic data
            final XPathExpression exprE = xpath.compile("//OpenURLResponse/OpenURLResult/Resultlist/Result");
            final NodeList resultListE = (NodeList) exprE.evaluate(doc, XPathConstants.NODESET);

            for (int i = 0; i < resultListE.getLength(); i++) {
                final Node firstResultNode = resultListE.item(i);
                final Element result = (Element) firstResultNode;

                final NodeList state = result.getElementsByTagName("access");
                final Element stateElement = (Element) state.item(0);
                int color = 0;
                if (stateElement != null) {
                    color = Integer.valueOf(stateElement.getAttribute("color"));
                }

                final EZBDataOnline online = new EZBDataOnline();

                // state
                // 1 free accessible
                if (color == EZBState.FREE.getValue()) {
                    online.setAmpel("green");
                    online.setComment("availresult.free");
                    online.setState(JOPState.FREE.getValue()); // translate state to EZB/ZDB-API
                    // 2 licensed ; 3 partially licensed
                } else if (color == EZBState.LICENSED.getValue()
                        || color == EZBState.LICENSED_PARTIALLY.getValue()) {
                    online.setAmpel("yellow");
                    online.setComment("availresult.abonniert");
                    online.setState(JOPState.LICENSED.getValue()); // translate state to EZB/ZDB-API
                    // not licensed
                } else if (color == EZBState.NOT_LICENSED.getValue()) {
                    online.setAmpel("red");
                    online.setComment("availresult.not_licensed");
                    online.setState(JOPState.NOT_LICENSED.getValue()); // translate state to EZB/ZDB-API
                } else {
                    online.setAmpel("red");
                    online.setComment("availresult.not_licensed");
                    online.setState(JOPState.NOT_LICENSED.getValue()); // translate state to EZB/ZDB-API
                }

                // LinkToArticle not always present
                String url = getValue(result.getElementsByTagName("LinkToArticle"));
                // LinkToJournal always present
                if (url == null) {
                    url = getValue(result.getElementsByTagName("LinkToJournal"));
                }
                online.setUrl(url);

                // try to get level from link
                String levelLinkToArticle = null;
                final NodeList levelNode = result.getElementsByTagName("LinkToArticle");
                final Element levelElement = (Element) levelNode.item(0);
                if (levelElement != null) {
                    levelLinkToArticle = levelElement.getAttribute("level");
                }

                if (levelLinkToArticle != null) {
                    online.setLevel(levelLinkToArticle); // specific level of each result
                } else {
                    online.setLevel(levelAvailable); // overall level of best match
                }

                if (title != null) {
                    online.setTitle(title);
                } else {
                    online.setTitle(url);
                }
                online.setReadme(getValue(result.getElementsByTagName("LinkToReadme")));

                ezbform.getOnline().add(online);
            }

            // Title not found
            if (resultListE.getLength() == 0) {
                final EZBDataOnline online = new EZBDataOnline();
                online.setAmpel("red");
                online.setComment("availresult.nohits");
                online.setState(JOPState.NO_HITS.getValue()); // translate state to EZB/ZDB-API

                ezbform.getOnline().add(online);
            }

        }

    } catch (final XPathExpressionException e) {
        LOG.error(e.toString());
    } catch (final SAXParseException e) {
        LOG.error(e.toString());
    } catch (final SAXException e) {
        LOG.error(e.toString());
    } catch (final IOException e) {
        LOG.error(e.toString());
    } catch (final ParserConfigurationException e) {
        LOG.error(e.toString());
    } catch (final Exception e) {
        LOG.error(e.toString());
    }

    return ezbform;
}

From source file:com.provenance.cloudprovenance.policyhandler.ws.support.PolicyRequestProcessor.java

public String getIdforPolicyMatch(String responseContent, String xpathToDocumentId)
        throws ParserConfigurationException, SAXException, IOException, XPathExpressionException,
        XPathFactoryConfigurationException {

    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);/*from   ww  w.j  a va2  s.c om*/
    DocumentBuilder builder = factory.newDocumentBuilder();

    InputSource is = new InputSource(new StringReader(responseContent));
    Document doc = builder.parse(is);

    XPathFactory xPathFactory = XPathFactory.newInstance();
    XPath xpath = xPathFactory.newXPath();
    xpath.setNamespaceContext(cProvMapper);

    XPathExpression xPathExpr;
    xPathExpr = xpath.compile(xpathToDocumentId);

    logger.debug("XpathExpression to match: " + xpathToDocumentId);
    logger.debug("Document to match is: " + responseContent);

    return (String) xPathExpr.evaluate(doc, XPathConstants.STRING);
}

From source file:edu.cornell.mannlib.vitro.utilities.containerneutral.CheckContainerNeutrality.java

/**
 * Search for an Xpath within a node of web.xml, returning a handy list.
 *//*from   ww w . j  av a2s .  c om*/
private List<Node> findNodes(String pattern, Node context) {
    try {
        XPathExpression xpe = xpath.compile(pattern);
        NodeList nodes = (NodeList) xpe.evaluate(context, XPathConstants.NODESET);
        List<Node> list = new ArrayList<Node>();
        for (int i = 0; i < nodes.getLength(); i++) {
            list.add(nodes.item(i));
        }
        return list;
    } catch (XPathExpressionException e) {
        throw new RuntimeException(e);
    }
}

From source file:org.apache.camel.component.social.providers.twitter.AbstractTwitterPath.java

protected Iterable<SocialData> convertToSocialDataList(String body) throws Exception {
    DocumentBuilder db = getDomFac().newDocumentBuilder();

    InputSource source = new InputSource();
    source.setCharacterStream(new StringReader(body));
    Document doc = db.parse(source);

    XPathExpression expr = getXpath().compile("/statuses/status");

    Object result = expr.evaluate(doc, XPathConstants.NODESET);
    NodeList nodes = (NodeList) result;

    List<SocialData> socialDataList = new ArrayList<SocialData>(nodes.getLength());
    for (int index = 0; index < nodes.getLength(); index++) {
        Node aNode = nodes.item(index);

        DefaultSocialData socialData = parseStatus(aNode);
        socialDataList.add(socialData);/*from   ww w  .java2s.  co m*/
    }

    return socialDataList;
}

From source file:cz.strmik.cmmitool.cmmi.DefaultRatingScalesProvider.java

private List<RatingScale> readScales(String id, String lang) {
    List<RatingScale> scales = new ArrayList<RatingScale>();
    try {/*from   w  w w. j  ava 2 s  .co  m*/
        Document document = getScalesDocument();

        XPathFactory factory = XPathFactory.newInstance();
        XPath xPath = factory.newXPath();

        SimpleNamespaceContext ns = new SimpleNamespaceContext();
        ns.bindNamespaceUri("s", SCALES_XML_NS);
        xPath.setNamespaceContext(ns);

        XPathExpression exprScales = xPath.compile("/s:ratings/s:rating[@id='" + id + "']/s:scale");
        XPathExpression exprName = xPath.compile("s:name[@lang='" + lang + "']");
        XPathExpression exprColor = xPath.compile("s:color[@type='html']");

        NodeList nodes = (NodeList) exprScales.evaluate(document, XPathConstants.NODESET);
        for (int i = 0; i < nodes.getLength(); i++) {
            Node node = nodes.item(i);
            int score = Integer.parseInt(node.getAttributes().getNamedItem("score").getTextContent());

            String name = exprName.evaluate(node);
            String color = exprColor.evaluate(node);
            RatingScale rs = new RatingScale(name, i, score, color);
            if (i == 0) {
                rs.setDefaultRating(true);
            }
            scales.add(rs);
        }
    } catch (Exception ex) {
        _log.warn(
                "Unable to load default scales for id=" + id + ",lang=" + lang + " ratings from " + SCALES_XML,
                ex);
    }
    return scales;
}