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

Example 76 with XPathExpression

use of javax.xml.xpath.XPathExpression in project spring-boot by spring-projects.

the class Versions method evaluateExpression.

private static String evaluateExpression(String expression) {
    try {
        XPathFactory xPathFactory = XPathFactory.newInstance();
        XPath xpath = xPathFactory.newXPath();
        XPathExpression expr = xpath.compile(expression);
        String version = expr.evaluate(new InputSource(new FileReader("pom.xml")));
        return version;
    } catch (Exception ex) {
        throw new IllegalStateException("Failed to evaluate expression", ex);
    }
}

Example 77 with XPathExpression

use of javax.xml.xpath.XPathExpression in project perun by CESNET.

the class MUStrategy method parseResponse.

/**
	 * Parse String response as XML document and retrieve Publications from it.
	 * @param xml XML response from MU Prezentator
	 * @return List of Publications
	 * @throws CabinetException If anything fails
	 */
protected List<Publication> parseResponse(String xml) throws CabinetException {
    assert xml != null;
    List<Publication> result = new ArrayList<Publication>();
    //hook for titles with &
    xml = xml.replace("&", "&amp;");
    //log.debug("RESPONSE: "+xml);
    //Create new document factory builder
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder;
    try {
        builder = factory.newDocumentBuilder();
    } catch (ParserConfigurationException ex) {
        throw new CabinetException("Error when creating newDocumentBuilder.", ex);
    }
    Document doc;
    try {
        doc = builder.parse(new InputSource(new StringReader(xml)));
    } catch (SAXParseException ex) {
        throw new CabinetException("Error when parsing uri by document builder.", ErrorCodes.MALFORMED_HTTP_RESPONSE, ex);
    } catch (SAXException ex) {
        throw new CabinetException("Problem with parsing is more complex, not only invalid characters.", ErrorCodes.MALFORMED_HTTP_RESPONSE, ex);
    } catch (IOException ex) {
        throw new CabinetException("Error when parsing uri by document builder. Problem with input or output.", ErrorCodes.MALFORMED_HTTP_RESPONSE, ex);
    }
    //Prepare xpath expression
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();
    XPathExpression publicationsQuery;
    try {
        publicationsQuery = xpath.compile("/P/UL/publication");
    } catch (XPathExpressionException ex) {
        throw new CabinetException("Error when compiling xpath query.", ex);
    }
    NodeList nodeList;
    try {
        nodeList = (NodeList) publicationsQuery.evaluate(doc, XPathConstants.NODESET);
    } catch (XPathExpressionException ex) {
        throw new CabinetException("Error when evaluate xpath query on document.", ex);
    }
    //Test if there is any nodeset in result
    if (nodeList.getLength() == 0) {
        //There is no results, return empty subjects
        return result;
    }
    //Iterate through nodes and convert them to Map<String,String>
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node singleNode = nodeList.item(i);
        // remove node from original structure in order to keep access time constant (otherwise is exp.)
        singleNode.getParentNode().removeChild(singleNode);
        try {
            Publication publication = convertNodeToPublication(singleNode);
            result.add(publication);
        } catch (InternalErrorException ex) {
            log.error("Unable to parse Publication:", ex);
        }
    }
    return result;
}

Example 78 with XPathExpression

use of javax.xml.xpath.XPathExpression in project perun by CESNET.

the class OBD30Strategy method parseResponse.

/**
	 * Parse String response as XML document and retrieve Publications from it.
	 * @param xml XML response from OBD 3.0
	 * @return List of Publications
	 * @throws CabinetException If anything fails
	 */
protected List<Publication> parseResponse(String xml) throws CabinetException {
    assert xml != null;
    List<Publication> result = new ArrayList<Publication>();
    //hook for titles with &
    xml = xml.replace("&", "&amp;");
    //log.debug("RESPONSE: "+xml);
    //Create new document factory builder
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder;
    try {
        builder = factory.newDocumentBuilder();
    } catch (ParserConfigurationException ex) {
        throw new CabinetException("Error when creating newDocumentBuilder.", ex);
    }
    Document doc;
    try {
        doc = builder.parse(new InputSource(new StringReader(xml)));
    } catch (SAXParseException ex) {
        throw new CabinetException("Error when parsing uri by document builder.", ErrorCodes.MALFORMED_HTTP_RESPONSE, ex);
    } catch (SAXException ex) {
        throw new CabinetException("Problem with parsing is more complex, not only invalid characters.", ErrorCodes.MALFORMED_HTTP_RESPONSE, ex);
    } catch (IOException ex) {
        throw new CabinetException("Error when parsing uri by document builder. Problem with input or output.", ErrorCodes.MALFORMED_HTTP_RESPONSE, ex);
    }
    //Prepare xpath expression
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();
    XPathExpression publicationsQuery;
    try {
        publicationsQuery = xpath.compile("/zaznamy/zaznam");
    } catch (XPathExpressionException ex) {
        throw new CabinetException("Error when compiling xpath query.", ex);
    }
    NodeList nodeList;
    try {
        nodeList = (NodeList) publicationsQuery.evaluate(doc, XPathConstants.NODESET);
    } catch (XPathExpressionException ex) {
        throw new CabinetException("Error when evaluate xpath query on document.", ex);
    }
    //Test if there is any nodeset in result
    if (nodeList.getLength() == 0) {
        //There is no results, return empty subjects
        return result;
    }
    //Iterate through nodes and convert them to Map<String,String>
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node singleNode = nodeList.item(i);
        // remove node from original structure in order to keep access time constant (otherwise is exp.)
        singleNode.getParentNode().removeChild(singleNode);
        try {
            Publication publication = convertNodeToPublication(singleNode);
            result.add(publication);
        } catch (InternalErrorException ex) {
            log.error("Unable to parse Publication:", ex);
        }
    }
    return result;
}

Example 79 with XPathExpression

use of javax.xml.xpath.XPathExpression in project ORCID-Source by ORCID.

the class IdentityProviderManagerImpl method loadIdentityProviders.

@Override
public void loadIdentityProviders() {
    String[] metadataUrls = StringUtils.split(metadataUrlsString);
    XPath xpath = createXPath();
    XPathExpression entityDescriptorXpath = compileXPath(xpath, "//md:EntityDescriptor");
    for (String metadataUrl : metadataUrls) {
        Document document = downloadMetadata(metadataUrl);
        NodeList nodes = evaluateXPathNodeList(entityDescriptorXpath, document);
        for (int i = 0; i < nodes.getLength(); i++) {
            Element element = (Element) nodes.item(i);
            IdentityProviderEntity incoming = createEntityFromXml(element);
            LOGGER.info("Found identity provider: {}", incoming.toShortString());
            saveOrUpdateIdentityProvider(incoming);
        }
    }
}

Example 80 with XPathExpression

use of javax.xml.xpath.XPathExpression in project Activiti by Activiti.

the class ProcessDiagramLayoutFactory method fixFlowNodePositionsIfModelFromAdonis.

protected Map<String, DiagramNode> fixFlowNodePositionsIfModelFromAdonis(Document bpmnModel, Map<String, DiagramNode> elementBoundsFromBpmnDi) {
    if (isExportedFromAdonis50(bpmnModel)) {
        Map<String, DiagramNode> mapOfFixedBounds = new HashMap<String, DiagramNode>();
        XPathFactory xPathFactory = XPathFactory.newInstance();
        XPath xPath = xPathFactory.newXPath();
        xPath.setNamespaceContext(new Bpmn20NamespaceContext());
        for (Entry<String, DiagramNode> entry : elementBoundsFromBpmnDi.entrySet()) {
            String elementId = entry.getKey();
            DiagramNode elementBounds = entry.getValue();
            String expression = "local-name(//bpmn:*[@id = '" + elementId + "'])";
            try {
                XPathExpression xPathExpression = xPath.compile(expression);
                String elementLocalName = xPathExpression.evaluate(bpmnModel);
                if (!"participant".equals(elementLocalName) && !"lane".equals(elementLocalName) && !"textAnnotation".equals(elementLocalName) && !"group".equals(elementLocalName)) {
                    elementBounds.setX(elementBounds.getX() - elementBounds.getWidth() / 2);
                    elementBounds.setY(elementBounds.getY() - elementBounds.getHeight() / 2);
                }
            } catch (XPathExpressionException e) {
                throw new ActivitiException("Error while evaluating the following XPath expression on a BPMN XML document: '" + expression + "'.", e);
            }
            mapOfFixedBounds.put(elementId, elementBounds);
        }
        return mapOfFixedBounds;
    } else {
        return elementBoundsFromBpmnDi;
    }
}