Example usage for javax.xml.xpath XPathConstants NODESET

List of usage examples for javax.xml.xpath XPathConstants NODESET

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Introduction

In this page you can find the example usage for javax.xml.xpath XPathConstants NODESET.

Prototype

QName NODESET

To view the source code for javax.xml.xpath XPathConstants NODESET.

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Document

The XPath 1.0 NodeSet data type.

Maps to Java org.w3c.dom.NodeList .

Usage

From source file:Main.java

/**
 * <p>//from   ww  w.j a va  2 s. c om
 * Evaluates the given XPath expression in the context of the given item, with
 * the expectation of a node set result.
 * </p>
 * 
 * @param xpe
 *          An XPath expression.
 * @param item
 *          A context item.
 * @return The result of the evaluation as a {@link NodeSet} instance.
 * @throws XPathExpressionException
 *           if the evaluation fails
 * @since 1.67.5
 * @see XPathConstants#NODESET
 */
public static NodeList evaluateNodeSet(XPathExpression xpe, Object item) throws XPathExpressionException {
    return (NodeList) xpe.evaluate(item, XPathConstants.NODESET);
}

From source file:Main.java

private static List<String> getEmployeeNameWithAge(Document doc, XPath xpath, int age) throws Exception {
    List<String> list = new ArrayList<>();
    XPathExpression expr = xpath.compile("/Employees/Employee[age>" + age + "]/name/text()");
    NodeList nodes = (NodeList) expr.evaluate(doc, XPathConstants.NODESET);
    for (int i = 0; i < nodes.getLength(); i++)
        list.add(nodes.item(i).getNodeValue());
    return list;/*from   ww w  .ja  va 2 s. co  m*/
}

From source file:com.github.born2snipe.project.setup.cli.maven.AssertXml.java

public static void assertElementDoesExist(String expectedText, File file, String xpathQuery) {
    try {//from w ww . j  a  v  a  2 s.c  o m
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document doc = builder.parse(file);

        XPath xPath = XPathFactory.newInstance().newXPath();
        NodeList nodes = (NodeList) xPath.compile(xpathQuery).evaluate(doc, XPathConstants.NODESET);
        for (int i = 0; i < nodes.getLength(); i++) {
            String text = nodes.item(i).getTextContent();
            if (text.equals(expectedText)) {
                Assert.fail("We expected to NOT find " + expectedText);
            }
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

/**
 * Get xml nodes by xpath expression, based on node
 * /*from  w  w w .  j a v  a 2s. com*/
 * @param node
 * @param xpath
 * @return
 * @throws Exception
 */
public static NodeList getNodesByXPath(Node node, XPathExpression xpath) throws Exception {
    return (NodeList) xpath.evaluate(node, XPathConstants.NODESET);
}

From source file:Main.java

/**
 * Gets the node list from the given xml file and the given xpath expression.
 * /*from   w w  w  .  j ava 2s.c om*/
 * @param xml
 *            the xml
 * @param xpathExpression
 *            the xpath expression
 * @return the node list
 * @throws XPathExpressionException
 *             the x path expression exception
 * @throws ParserConfigurationException
 *             the parser configuration exception
 * @throws SAXException
 *             the sAX exception
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
public static NodeList getNodeList(File xml, String xpathExpression)
        throws XPathExpressionException, ParserConfigurationException, SAXException, IOException {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(true);
    DocumentBuilder builder = domFactory.newDocumentBuilder();
    Document doc = builder.parse(xml);
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xpath.compile(xpathExpression);

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

From source file:uk.ac.ebi.intact.dataexchange.psimi.solr.util.IntactSolrUtils.java

public static SchemaInfo retrieveSchemaInfo(SolrServer solrServer) throws IOException {
    SchemaInfo schemaInfo = new SchemaInfo();

    if (solrServer instanceof CommonsHttpSolrServer) {
        final CommonsHttpSolrServer solr = (CommonsHttpSolrServer) solrServer;

        final String url = solr.getBaseURL() + "/admin/file/?file=schema.xml";
        final GetMethod method = new GetMethod(url);
        final int code = solr.getHttpClient().executeMethod(method);

        XPath xpath = XPathFactory.newInstance().newXPath();
        String expression = "/schema/fields/field";
        InputStream stream = method.getResponseBodyAsStream();
        InputSource inputSource = new InputSource(stream);

        try {//  www .ja  va 2s. c  o m
            NodeList nodes = (NodeList) xpath.evaluate(expression, inputSource, XPathConstants.NODESET);

            for (int i = 0; i < nodes.getLength(); i++) {
                final String fieldName = nodes.item(i).getAttributes().getNamedItem("name").getNodeValue();
                schemaInfo.addFieldName(fieldName);
            }

        } catch (XPathExpressionException e) {
            e.printStackTrace();
        } finally {
            stream.close();
        }

    } else if (solrServer instanceof HttpSolrServer) {
        final HttpSolrServer solr = (HttpSolrServer) solrServer;

        final String url = solr.getBaseURL() + "/admin/file/?file=schema.xml";
        final HttpUriRequest method = new HttpGet(url);
        final HttpResponse response = solr.getHttpClient().execute(method);

        XPath xpath = XPathFactory.newInstance().newXPath();
        String expression = "/schema/fields/field";
        InputStream stream = response.getEntity().getContent();
        InputSource inputSource = new InputSource(stream);

        try {
            NodeList nodes = (NodeList) xpath.evaluate(expression, inputSource, XPathConstants.NODESET);

            for (int i = 0; i < nodes.getLength(); i++) {
                final String fieldName = nodes.item(i).getAttributes().getNamedItem("name").getNodeValue();
                schemaInfo.addFieldName(fieldName);
            }

        } catch (XPathExpressionException e) {
            e.printStackTrace();
        } finally {
            stream.close();
        }

    } else {
        throw new IllegalArgumentException(
                "Cannot get schema for SolrServer with class: " + solrServer.getClass().getName());
    }

    return schemaInfo;
}

From source file:com.dianping.phoenix.dev.core.tools.scanner.ServiceMetaScanner.java

@Override
protected List<ServicePortEntry> doScan(Document doc) throws Exception {
    List<ServicePortEntry> resList = new ArrayList<ServicePortEntry>();
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expr = xpath.compile("//service");

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

    NodeList nodes = (NodeList) xmlRes;

    for (int i = 0; i < nodes.getLength(); i++) {
        String serviceName = nodes.item(i).getAttributes().getNamedItem("name").getNodeValue();
        XPathExpression portExpr = xpath.compile("//service[@name='" + serviceName + "']/port/text()");
        Object portRes = portExpr.evaluate(doc, XPathConstants.NODESET);
        NodeList ports = (NodeList) portRes;
        int projectPort = -1;
        if (ports.getLength() >= 1) {
            projectPort = Integer.parseInt(ports.item(0).getNodeValue());
        }//from   www.j  av  a2  s  . co  m

        if (projectPort > 0 && StringUtils.isNotBlank(serviceName)) {
            resList.add(new ServicePortEntry(serviceName, projectPort));
        }
    }

    return resList;
}

From source file:Main.java

/**
 * Get the W3C NodeList instance associated with the XPath selection
 * supplied.//  ww w  . j a v a2  s .  c o  m
 *
 * @param node  The document node to be searched.
 * @param xpath The XPath String to be used in the selection.
 * @return The W3C NodeList instance at the specified location in the
 *         document, or null.
 */
public static NodeList getNodeList(Node node, String xpath) {
    if (node == null) {
        throw new IllegalArgumentException("null 'document' arg in method call.");
    } else if (xpath == null) {
        throw new IllegalArgumentException("null 'xpath' arg in method call.");
    }
    try {
        XPath xpathEvaluater = xPathFactory.newXPath();

        if (xpath.endsWith(ELEMENT_NAME_FUNC)) {
            return (NodeList) xpathEvaluater.evaluate(
                    xpath.substring(0, xpath.length() - ELEMENT_NAME_FUNC.length()), node,
                    XPathConstants.NODESET);
        } else {
            return (NodeList) xpathEvaluater.evaluate(xpath, node, XPathConstants.NODESET);
        }
    } catch (XPathExpressionException e) {
        throw new IllegalArgumentException("bad 'xpath' expression [" + xpath + "].");
    }
}

From source file:com.dianping.maven.plugin.tools.misc.scanner.ProjectMetaScanner.java

@Override
protected List<ProjectPortEntry> doScan(Document doc) throws Exception {
    List<ProjectPortEntry> resList = new ArrayList<ProjectPortEntry>();
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expr = xpath.compile("//project");

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

    NodeList nodes = (NodeList) xmlRes;

    for (int i = 0; i < nodes.getLength(); i++) {
        String projectName = nodes.item(i).getAttributes().getNamedItem("name").getNodeValue();
        XPathExpression portExpr = xpath.compile("//project[@name='" + projectName + "']/port/text()");
        Object portRes = portExpr.evaluate(doc, XPathConstants.NODESET);
        NodeList ports = (NodeList) portRes;
        int projectPort = -1;
        if (ports.getLength() >= 1) {
            projectPort = Integer.parseInt(ports.item(0).getNodeValue());
        }/*from  www. j a  v a2s  .  c o  m*/

        if (projectPort > 0 && StringUtils.isNotBlank(projectName)) {
            resList.add(new ProjectPortEntry(projectName, projectPort));
        }
    }

    return resList;
}

From source file:Main.java

public static NodeList getNodeList(String xPathExpression, Node node) throws XPathExpressionException {
    return (NodeList) xPath.evaluate(xPathExpression, node, XPathConstants.NODESET);
}