Example usage for javax.xml.xpath XPathFactory newInstance

List of usage examples for javax.xml.xpath XPathFactory newInstance

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Introduction

In this page you can find the example usage for javax.xml.xpath XPathFactory newInstance.

Prototype

public static XPathFactory newInstance()

Source Link

Document

Get a new XPathFactory instance using the default object model, #DEFAULT_OBJECT_MODEL_URI , the W3C DOM.

This method is functionally equivalent to:

 newInstance(DEFAULT_OBJECT_MODEL_URI)

Since the implementation for the W3C DOM is always available, this method will never fail.

Usage

From source file:edu.sabanciuniv.sentilab.sare.controllers.aspect.AspectLexiconFactory.java

protected AspectLexiconFactory addXmlAspect(AspectLexicon lexicon, Node aspectNode)
        throws XPathExpressionException {

    Validate.notNull(lexicon, CannedMessages.NULL_ARGUMENT, "lexicon");
    Validate.notNull(aspectNode, CannedMessages.NULL_ARGUMENT, "node");

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

    // if the node is called "lexicon" then we're at the root, so we won't need to add an aspect and its expressions.
    AspectLexicon aspect = lexicon;/*  www  .  j av a  2 s.c o  m*/
    if (!"aspect-lexicon".equalsIgnoreCase(aspectNode.getLocalName())) {
        String title = Validate.notEmpty(
                (String) xpath.compile("./@title").evaluate(aspectNode, XPathConstants.STRING),
                CannedMessages.EMPTY_ARGUMENT, "./aspect/@title");
        ;

        // fetch or create aspect.
        aspect = lexicon.findAspect(title);
        if (aspect == null) {
            aspect = lexicon.addAspect(title);
        }

        // get all expressions or keywords, whatever they're called.
        NodeList expressionNodes = (NodeList) xpath.compile("./expressions/expression").evaluate(aspectNode,
                XPathConstants.NODESET);
        if (expressionNodes == null || expressionNodes.getLength() == 0) {
            expressionNodes = (NodeList) xpath.compile("./keywords/keyword").evaluate(aspectNode,
                    XPathConstants.NODESET);
        }

        // add each of them if they don't exist.
        if (expressionNodes != null) {
            for (int index = 0; index < expressionNodes.getLength(); index++) {
                String expression = expressionNodes.item(index).getTextContent().trim();
                if (!aspect.hasExpression(expression)) {
                    aspect.addExpression(expression);
                }
            }
        }
    }

    // get all sub-aspects and add them recursively.
    NodeList subAspectNodes = (NodeList) xpath.compile("./aspects/aspect").evaluate(aspectNode,
            XPathConstants.NODESET);
    if (subAspectNodes != null) {
        for (int index = 0; index < subAspectNodes.getLength(); index++) {
            this.addXmlAspect(aspect, subAspectNodes.item(index));
        }
    }

    return this;
}

From source file:mupomat.utility.LongLatService.java

public String getXpathValue(Document doc, String strXpath) throws XPathExpressionException {
    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xPath.compile(strXpath);
    String resultData = null;/*from  w w  w . java2s  .c o m*/
    Object result4 = expr.evaluate(doc, XPathConstants.NODESET);
    NodeList nodes = (NodeList) result4;
    for (int i = 0; i < nodes.getLength(); i++) {
        resultData = nodes.item(i).getNodeValue();
    }
    return resultData;

}

From source file:com.webwoz.wizard.server.components.MTinMicrosoft.java

public String translate(String inputText, String srcLang, String trgLang) {

    // initialize connection
    // adapt proxies and settings to fit your server environment
    initializeConnection("www-proxy.cs.tcd.ie", 8080);
    String translation = null;/*from w  w w .j  ava 2s .com*/
    String query = inputText;
    String MICROSOFT_TRANSLATION_BASE_URL = "http://api.microsofttranslator.com/V2/Http.svc/Translate?";
    String appID = "226846CE16BC2542B7916B05CE9284CF4075B843";

    try {
        // encode text
        query = URLEncoder.encode(query, "UTF-8");
        // exchange + for space
        query = query.replace("+", "%20");
    } catch (UnsupportedEncodingException ex) {
        ex.printStackTrace();
    }

    String requestURL = MICROSOFT_TRANSLATION_BASE_URL + "appid=" + appID + "&from=" + srcLang + "&to="
            + trgLang + "&text=" + query;

    HttpGet getRequest = new HttpGet(requestURL);

    try {
        HttpResponse response = httpClient.execute(getRequest);
        HttpEntity responseEntity = response.getEntity();

        InputStream inputStream = responseEntity.getContent();

        Document myDocument = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(inputStream);

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

        translation = (String) xPath.evaluate("/string", myDocument, XPathConstants.STRING);

        inputStream.close();

        translation = translation.trim();

        // if the original string did not have a dot at the end, then
        // remove the dot that Microsoft Translator sometimes places at the
        // end!! (not so sure it still happens anyway!)
        if (!inputText.endsWith(".") && (translation.endsWith("."))) {
            translation = translation.substring(0, translation.length() - 1);
        }

        setUttText(translation);

    } catch (Exception ex) {
        ex.printStackTrace();
        translation = ex.toString();
    }

    shutDownConnection();
    return translation;
}

From source file:io.apigee.buildTools.enterprise4g.utils.PackageConfigurer.java

public static void configurePackage(String env, File configFile) throws Exception {
    Transformer transformer = tltf.get();

    // get the list of files in proxies folder
    XMLFileListUtil listFileUtil = new XMLFileListUtil();

    ConfigTokens conf = FileReader.getBundleConfigs(configFile);

    Map<String, List<File>> filesToProcess = new HashMap<String, List<File>>();
    filesToProcess.put("proxy", listFileUtil.getProxyFiles(configFile));
    filesToProcess.put("policy", listFileUtil.getPolicyFiles(configFile));
    filesToProcess.put("target", listFileUtil.getTargetFiles(configFile));

    doTokenReplacement(env, conf, filesToProcess);

    // special case ...
    File proxyFile = listFileUtil.getAPIProxyFiles(configFile).get(0);
    Document xmlDoc = FileReader.getXMLDocument(proxyFile); // there would be only one file, at least one file

    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expression = xpath.compile("/APIProxy/Description");

    NodeList nodes = (NodeList) expression.evaluate(xmlDoc, XPathConstants.NODESET);
    if (nodes.item(0).hasChildNodes()) {
        // sets the description to whatever is in the <proxyname>.xml file
        nodes.item(0).setTextContent(expression.evaluate(xmlDoc));
    } else {//  w w  w  .ja va2 s. c o  m
        // if Description is empty, then it reverts back to appending the username, git hash, etc
        nodes.item(0).setTextContent(getComment(proxyFile));
    }

    DOMSource source = new DOMSource(xmlDoc);
    StreamResult result = new StreamResult(proxyFile);
    transformer.transform(source, result);
}

From source file:it.isti.cnr.hpc.europeana.hackthon.domain.DbpediaMapper.java

private boolean load(String query) throws EntityException, NoResultException {

    boolean success = true;

    label = "";/*from ww w  . j  a v a 2  s  .  co m*/
    description = "";
    String queryUrl = produceQueryUrl(query);

    try {
        Document response = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(queryUrl);

        if (response != null) {

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

            NodeList nodes = (NodeList) xPath.evaluate("/ArrayOfResult/Result", response,
                    XPathConstants.NODESET);

            if (nodes.getLength() != 0) {

                // WE TAKE THE FIRST ENTITY FROM DBPEDIA
                label = ((String) xPath.evaluate("Label", nodes.item(0), XPathConstants.STRING));

                description = ((String) xPath.evaluate("Description", nodes.item(0), XPathConstants.STRING))
                        .toLowerCase();

                NodeList classesList = (NodeList) xPath.evaluate("Classes/Class", nodes.item(0),
                        XPathConstants.NODESET);

                classes = new ArrayList<String>(classesList.getLength());
                for (int i = 0; i < classesList.getLength(); i++) {
                    Node n = classesList.item(i);
                    String clazz = (String) xPath.evaluate("Label", n, XPathConstants.STRING);
                    classes.add(clazz);
                }
            }
            if (label.isEmpty()) {
                success = false;
                label = query;
            }

        }
    } catch (Exception e) {
        logger.error("Error during the mapping of the query " + query + " on dbPedia (" + e.toString() + ")");

        if (e.toString().contains("sorry")) {
            try {
                Thread.sleep(60000 * 5);
            } catch (InterruptedException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        }
        success = false;

    } catch (Error e) {
        logger.error("Error during the mapping of the query " + query + " on dbPedia (" + e.toString() + ")");
        if (e.toString().contains("sorry")) {
            try {
                Thread.sleep(60000 * 5);
            } catch (InterruptedException e1) {
                throw new EntityException("Error during the mapping of the query " + query + " on dbPedia ("
                        + e.toString() + ")");
            }
        }
        success = false;

    }

    if (!success) {
        throw new NoResultException("mapping to dbpedia failed for query " + query);
    }
    return success;
}

From source file:gov.nij.bundles.intermediaries.ers.EntityResolutionMessageHandler.java

public EntityResolutionMessageHandler() {
    entityResolutionService = new EntityResolutionService();
    xpath = XPathFactory.newInstance().newXPath();
    xpath.setNamespaceContext(new EntityResolutionNamespaceContext());

}

From source file:com.baracuda.piepet.nexusrelease.nexus.StageClient.java

/**
 * Create a new StageClient to handle communicating to a Nexus Pro server Staging suite.
 * //  w  w  w  .  jav  a 2 s .  c o  m
 * @param nexusURL the base URL for the Nexus server.
 * @param username user name to use with staging privileges.
 * @param password password for the user.
 */
public StageClient(URL nexusURL, String username, String password) {
    this.nexusURL = nexusURL;
    this.username = username;
    this.password = password;
    // XPathFactory is not thread safe.
    XPathFactory factory;
    synchronized (XPathFactory.class) {
        factory = XPathFactory.newInstance();
    }
    synchronized (factory) {
        xpath = factory.newXPath();
    }
}

From source file:com.webwoz.wizard.server.components.MToutMicrosoft.java

public String translate(String inputText, String srcLang, String trgLang) {

    // initialize connection
    // adapt proxy and settings to fit your server environments
    initializeConnection("www-proxy.cs.tcd.ie", 8080);
    String translation = null;/*ww w. j a  v  a2 s.  co m*/
    String query = inputText;
    String MICROSOFT_TRANSLATION_BASE_URL = "http://api.microsofttranslator.com/V2/Http.svc/Translate?";
    String appID = "226846CE16BC2542B7916B05CE9284CF4075B843";

    try {
        // encode text
        query = URLEncoder.encode(query, "UTF-8");
        // exchange + for space
        query = query.replace("+", "%20");
    } catch (UnsupportedEncodingException ex) {
        ex.printStackTrace();
        System.out.println(ex);
    }

    String requestURL = MICROSOFT_TRANSLATION_BASE_URL + "appid=" + appID + "&from=" + srcLang + "&to="
            + trgLang + "&text=" + query;

    HttpGet getRequest = new HttpGet(requestURL);

    try {
        HttpResponse response = httpClient.execute(getRequest);
        HttpEntity responseEntity = response.getEntity();

        InputStream inputStream = responseEntity.getContent();

        Document myDocument = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(inputStream);

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

        translation = (String) xPath.evaluate("/string", myDocument, XPathConstants.STRING);

        inputStream.close();

        translation = translation.trim();

        // if the original string did not have a dot at the end, then
        // remove the dot that Microsoft Translator sometimes places at the
        // end!! (not so sure it still happens anyway!)
        if (!inputText.endsWith(".") && (translation.endsWith("."))) {
            translation = translation.substring(0, translation.length() - 1);
        }

        setUttText(translation);

    } catch (Exception ex) {
        ex.printStackTrace();
        translation = ex.toString();
        setUttText(translation);
        System.out.println(translation);
    }

    shutDownConnection();
    return translation;
}

From source file:org.codice.ddf.admin.sources.opensearch.OpenSearchSourceUtils.java

public UrlAvailability getUrlAvailability(String url, String un, String pw) {
    UrlAvailability result = new UrlAvailability(url);
    boolean queryResponse;
    int status;/*  ww  w  . ja va2 s  .  co m*/
    String contentType;
    HttpGet request = new HttpGet(url + SIMPLE_QUERY_PARAMS);
    CloseableHttpResponse response = null;
    CloseableHttpClient client = null;

    if (url.startsWith("https") && un != null && pw != null) {
        byte[] auth = Base64.encodeBase64((un + ":" + pw).getBytes());
        request.setHeader(HttpHeaders.AUTHORIZATION, "Basic " + new String(auth));
    }
    XPath xpath = XPathFactory.newInstance().newXPath();
    xpath.setNamespaceContext(SOURCES_NAMESPACE_CONTEXT);
    try {
        client = getCloseableHttpClient(false);
        response = client.execute(request);
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(true);
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document responseXml = builder.parse(response.getEntity().getContent());
        queryResponse = (Boolean) xpath.compile(TOTAL_RESULTS_XPATH).evaluate(responseXml,
                XPathConstants.BOOLEAN);
        status = response.getStatusLine().getStatusCode();
        contentType = response.getEntity().getContentType().getValue();
        if (status == HTTP_OK && OPENSEARCH_MIME_TYPES.contains(contentType) && queryResponse) {
            return result.trustedCertAuthority(true).certError(false).available(true);
        } else {
            return result.trustedCertAuthority(true).certError(false).available(false);
        }
    } catch (SSLPeerUnverifiedException e) {
        // This is the hostname != cert name case - if this occurs, the URL's SSL cert configuration
        // is incorrect, or a serious network security issue has occurred.
        return result.trustedCertAuthority(false).certError(true).available(false);
    } catch (Exception e) {
        try {
            closeClientAndResponse(client, response);
            client = getCloseableHttpClient(true);
            response = client.execute(request);
            status = response.getStatusLine().getStatusCode();
            contentType = response.getEntity().getContentType().getValue();
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            factory.setNamespaceAware(true);
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document responseXml = builder.parse(response.getEntity().getContent());
            queryResponse = (Boolean) xpath.compile(TOTAL_RESULTS_XPATH).evaluate(responseXml,
                    XPathConstants.BOOLEAN);
            if (status == HTTP_OK && OPENSEARCH_MIME_TYPES.contains(contentType) && queryResponse) {
                return result.trustedCertAuthority(false).certError(false).available(true);
            }
        } catch (Exception e1) {
            return result.trustedCertAuthority(false).certError(false).available(false);
        }
    } finally {
        closeClientAndResponse(client, response);
    }
    return result;
}

From source file:org.fcrepo.kernel.impl.identifiers.HttpPidMinter.java

/**
 * Create a new HttpPidMinter./*from  w ww.  jav  a  2s .  co m*/
 * @param url The URL for the minter service.  This is the only required argument -- all
 *    other parameters can be blank.
 * @param method The HTTP method (POST, PUT or GET) used to generate a new PID (POST will
 *    be used if the method is blank.
 * @param username If not blank, use this username to connect to the minter service.
 * @param password If not blank, use this password used to connect to the minter service.
 * @param regex If not blank, use this regular expression used to remove unwanted text from the
 *    minter service response.  For example, if the response text is "/foo/bar:baz" and the
 *    desired identifier is "baz", then the regex would be ".*:".
 * @param xpath If not blank, use this XPath expression used to extract the desired identifier
 *    from an XML minter response.
**/
public HttpPidMinter(final String url, final String method, final String username, final String password,
        final String regex, final String xpath) {

    checkArgument(!isBlank(url), "Minter URL must be specified!");

    this.url = url;
    this.method = method;
    this.username = username;
    this.password = password;
    this.regex = regex;
    if (xpath != null) {
        try {
            this.xpath = XPathFactory.newInstance().newXPath().compile(xpath);
        } catch (XPathException ex) {
            log.warn("Error parsing xpath ({}): {}", xpath, ex);
        }
    }
    this.client = buildClient();
}