Example usage for javax.xml.xpath XPathExpression evaluate

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

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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:cz.mzk.editor.server.fedora.utils.FedoraUtils.java

/**
 * Find first page pid.//from  ww  w.  j ava  2  s  .c om
 * 
 * @param pid
 *        the pid
 * @return the string
 */
public static String findFirstPagePid(String pid) {

    ArrayList<String> pids = new ArrayList<String>();
    try {
        String command = configuration.getFedoraHost() + "/get/" + pid + "/RELS-EXT";
        InputStream is = RESTHelper.get(command, configuration.getFedoraLogin(),
                configuration.getFedoraPassword(), true);
        Document contentDom = XMLUtils.parseDocument(is);
        XPathFactory factory = XPathFactory.newInstance();
        XPath xpath = factory.newXPath();
        XPathExpression expr = xpath.compile("/RDF/Description/*");
        NodeList nodes = (NodeList) expr.evaluate(contentDom, XPathConstants.NODESET);
        for (int i = 0; i < nodes.getLength(); i++) {
            Node childnode = nodes.item(i);
            String nodeName = childnode.getNodeName();
            if (nodeName.contains(FedoraRelationship.hasPage.getStringRepresentation())
                    || nodeName.contains(FedoraRelationship.isOnPage.getStringRepresentation())) {
                return childnode.getAttributes().getNamedItem("rdf:resource").getNodeValue().split("uuid:")[1];
            } else if (!nodeName.contains("hasModel") && childnode.hasAttributes()
                    && childnode.getAttributes().getNamedItem("rdf:resource") != null) {
                pids.add(childnode.getAttributes().getNamedItem("rdf:resource").getNodeValue().split("/")[1]);
            }
        }
        for (String relpid : pids) {
            return FedoraUtils.findFirstPagePid(relpid);
        }
    } catch (Exception e) {
        LOGGER.error(e.getMessage(), e);
    }
    return null;
}

From source file:cz.mzk.editor.server.fedora.utils.FedoraUtils.java

/**
 * @param foxmlDocument/*from   w w w .j  a  v a2 s.c  o  m*/
 * @param oldContent
 */
private static void addOldOcr(Document foxmlDocument, String oldContent) {
    try {
        String lastContLocXPath = "//foxml:datastream[@ID=\'" + TEXT_OCR.getValue()
                + "\']/foxml:datastreamVersion[last()]/foxml:contentLocation[last()]";

        XPathExpression all = makeNSAwareXpath().compile(lastContLocXPath);
        NodeList listOfstream = (NodeList) all.evaluate(foxmlDocument, XPathConstants.NODESET);
        Element lastContLocElement = null;
        if (listOfstream.getLength() != 0) {
            lastContLocElement = (Element) listOfstream.item(0);
        }
        Element localContElement = foxmlDocument.createElement("foxml:content");

        localContElement.setTextContent(oldContent);
        lastContLocElement.appendChild(localContElement);

    } catch (XPathExpressionException e) {
        LOGGER.warn("XPath failure", e);
    }
}

From source file:eu.europa.esig.dss.DSSXMLUtils.java

/**
 * Returns the NodeList corresponding to the XPath query.
 *
 * @param xmlNode     The node where the search should be performed.
 * @param xPathString XPath query string
 * @return/*from w w  w  . j  ava  2s  . c  o  m*/
 * @throws XPathExpressionException
 */
public static NodeList getNodeList(final Node xmlNode, final String xPathString) {

    try {

        final XPathExpression expr = createXPathExpression(xPathString);
        final NodeList evaluated = (NodeList) expr.evaluate(xmlNode, XPathConstants.NODESET);
        return evaluated;
    } catch (XPathExpressionException e) {
        throw new DSSException(e);
    }
}

From source file:eu.europa.esig.dss.DSSXMLUtils.java

/**
 * Returns the number of found elements based on the XPath query.
 *
 * @param xmlNode//from  w ww  . ja v a 2 s .  c o  m
 * @param xPathString
 * @return
 */
public static int count(final Node xmlNode, final String xPathString) {
    try {
        final XPathExpression xPathExpression = createXPathExpression(xPathString);
        final Double number = (Double) xPathExpression.evaluate(xmlNode, XPathConstants.NUMBER);
        return number.intValue();
    } catch (XPathExpressionException e) {
        throw new DSSException(e);
    }
}

From source file:eu.europa.esig.dss.DSSXMLUtils.java

/**
 * Returns the String value of the corresponding to the XPath query.
 *
 * @param xmlNode     The node where the search should be performed.
 * @param xPathString XPath query string
 * @return string value of the XPath query
 * @throws XPathExpressionException//w  w w  .  j  a va  2 s  .c o  m
 */
public static String getValue(final Node xmlNode, final String xPathString) {

    try {

        final XPathExpression xPathExpression = createXPathExpression(xPathString);
        final String string = (String) xPathExpression.evaluate(xmlNode, XPathConstants.STRING);
        return string.trim();
    } catch (XPathExpressionException e) {
        throw new DSSException(e);
    }
}

From source file:cz.mzk.editor.server.fedora.utils.FedoraUtils.java

/**
 * Removes the elements./*  w  ww.  j a  v  a 2s  .  c o m*/
 * 
 * @param parent
 *        the parent
 * @param doc
 *        the doc
 * @throws XPathExpressionException
 */
public static List<Element> removeElements(Element parent, Document doc, String xPath)
        throws XPathExpressionException {
    XPathExpression expr = makeNSAwareXpath().compile(xPath);
    NodeList nodes = null;
    List<Element> removedNodes = null;
    try {
        nodes = (NodeList) expr.evaluate(doc, XPathConstants.NODESET);
        removedNodes = new ArrayList<Element>(nodes.getLength());
        for (int i = 0, lastIndex = nodes.getLength() - 1; i <= lastIndex; i++) {
            removedNodes.add((Element) parent.removeChild(nodes.item(i)));
        }
    } catch (XPathExpressionException e) {
        LOGGER.error("Unable to remove elements", e);
    }
    return removedNodes;
}

From source file:cz.mzk.editor.server.fedora.utils.FedoraUtils.java

/**
 * Create new relations part./* w ww. ja  v  a2s.  c om*/
 * 
 * @param detail
 *        the detail
 * @return content content of the new relations part
 */
public static String createNewRealitonsPart(DigitalObjectDetail detail) {
    if (detail.getAllItems() == null)
        return null;

    Document relsExt = null;

    try {
        relsExt = fedoraAccess.getRelsExt(detail.getUuid());
    } catch (IOException e) {
        e.printStackTrace();
    }
    try {
        XPathExpression all = makeNSAwareXpath().compile("/rdf:RDF/rdf:Description");
        NodeList nodes1 = (NodeList) all.evaluate(relsExt, XPathConstants.NODESET);
        Element parent = null;
        if (nodes1.getLength() != 0) {
            parent = (Element) nodes1.item(0);
        }

        int modelId = 0;
        boolean changed = false;
        List<DigitalObjectModel> models = NamedGraphModel.getChildren(detail.getModel());
        for (List<DigitalObjectDetail> data : detail.getAllItems()) {
            if (data != null) { // is changed
                changed = true;
                String xPathString = NamedGraphModel.getRelationship(detail.getModel(), models.get(modelId))
                        .getXPathNamespaceAwareQuery();
                removeElements(parent, relsExt, xPathString);
            }
            modelId++;
        }
        if (!changed)
            return null;

        boolean lameNS = false;
        String rdfDescXPath = "/rdf:RDF/rdf:Description";
        Element rdfDescEl = FoxmlUtils.getElement(relsExt, rdfDescXPath);
        Element policyEl = null;
        if (rdfDescEl != null && rdfDescEl.getElementsByTagName("policy").getLength() > 0)
            policyEl = (Element) rdfDescEl.getElementsByTagName("policy").item(0);
        if (policyEl != null && policyEl.getAttribute(XMLNS_ATTR) != null) {
            lameNS = policyEl.getAttribute("xmlns").equals(FedoraNamespaces.KRAMERIUS_URI);
        }
        int i = 0;
        for (List<DigitalObjectDetail> data : detail.getAllItems()) {
            FedoraRelationship relationship = NamedGraphModel.getRelationship(detail.getModel(), models.get(i));
            if (data != null) {
                String relation = relationship.getStringRepresentation();
                for (DigitalObjectDetail obj : data) {

                    Element newEl = relsExt.createElement((lameNS ? "" : RELS_EXT_PART_KRAM).concat(relation));
                    if (lameNS)
                        newEl.setAttribute(XMLNS_ATTR, XMLNS_ATTR_CONTENT);
                    newEl.setAttribute(RDF_RESOURCE_ATTR, Constants.FEDORA_INFO_PREFIX + obj.getUuid());

                    rdfDescEl.appendChild(newEl);
                }
            } else {
                List<Element> removedElements = removeElements(parent, relsExt,
                        relationship.getXPathNamespaceAwareQuery());
                for (Element el : removedElements)
                    rdfDescEl.appendChild(el);
            }
            i++;
        }

    } catch (XPathExpressionException e) {
        LOGGER.warn("XPath failure", e);
    }

    String content = null;
    try {
        content = getStringFromDocument(relsExt, true);
    } catch (TransformerException e) {
        LOGGER.warn("Document transformer failure", e);
        e.printStackTrace();
    }
    return content;
}

From source file:org.jboss.windup.decorator.archive.PomDescriptionDecorator.java

protected String extractStringValue(XPathExpression expression, Document doc) throws XPathExpressionException {
    return (String) expression.evaluate(doc, XPathConstants.STRING);
}

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 w w w.  j  a v a2s  .c  o  m

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

    return resList;
}

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 w  ww . jav  a 2  s  .c o  m*/

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

    return resList;
}