Package javax.xml.xpath

Examples of javax.xml.xpath.XPathExpression

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      ServletContext servletContext = getServletContext();

      // XPath expression for selecting the url pattern for this servlet instance
      String exprValue = "//servlet-mapping[servlet-name='" + servletName + "']/url-pattern";
      XPath xpath = XPathFactory.newInstance().newXPath();
      XPathExpression expr;
      try
      {
         expr = xpath.compile(exprValue);
      }
      catch (XPathExpressionException e)
      {
         throw new ServletException(e);
      }

      //
      log.debug("Going to look for the configuration of the end point servlet " + servletName);

      // Obtain url pattern values in order to find out how this servlet instance is mapped
      InputStream in = servletContext.getResourceAsStream("/WEB-INF/web.xml");
      byte[] bytes;
      try
      {
         bytes = IOTools.getBytes(in);

         // That's the descriptor but we won't parse it as the encoding may not be correct, it's just here for debugging purpose
         String descriptor = new String(bytes);
         log.debug("The a priori descriptor is " + descriptor);
      }
      catch (IOException e)
      {
         throw new ServletException("The end point servlet " + servletName + " is not able to load the web descriptor");
      }
      finally
      {
         IOTools.safeClose(in);
      }

      //
      try
      {
         Document doc = XMLTools.getDocumentBuilderFactory().newDocumentBuilder().parse(new ByteArrayInputStream(bytes));
        
         //
         NodeList nodes = (NodeList)expr.evaluate(doc, XPathConstants.NODESET);

         //
         for (int i = 0;i < nodes.getLength();i++)
         {
            Element urlPatternElt = (Element)nodes.item(i);
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                String s = r.getAttributeValue(null, "schemaLocation");
                if (StringUtils.isEmpty(s)) {
                    Document d = StaxUtils.read(r);
                    XPath p = XPathFactory.newInstance().newXPath();
                    p.setNamespaceContext(new W3CNamespaceContext(d.getDocumentElement()));
                    XPathExpression xpe = p.compile(d.getDocumentElement().getAttribute("node"));
                    for (XmlSchema schema : schemas.getXmlSchemas()) {
                        if (XMLConstants.W3C_XML_SCHEMA_NS_URI.equals(schema.getTargetNamespace())) {
                            continue;
                        }
                        Object src = getSchemaNode(schema, schemas);
                        NodeList nodes = (NodeList)xpe.evaluate(src, XPathConstants.NODESET);
                        if (nodes.getLength() > 0) {
                            String key = schema.getSourceURI();
                            binding = convertToTmpInputSource(d.getDocumentElement(), key);
                            opts.addBindFile(binding);
                            binding = null;
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                String s = r.getAttributeValue(null, "schemaLocation");
                if (StringUtils.isEmpty(s)) {
                    Document d = StaxUtils.read(r);
                    XPath p = XPathUtils.getFactory().newXPath();
                    p.setNamespaceContext(new W3CNamespaceContext(d.getDocumentElement()));
                    XPathExpression xpe = p.compile(d.getDocumentElement().getAttribute("node"));
                    for (XmlSchema schema : schemas.getXmlSchemas()) {
                        if (XMLConstants.W3C_XML_SCHEMA_NS_URI.equals(schema.getTargetNamespace())) {
                            continue;
                        }
                        Object src = getSchemaNode(schema, schemas);
                        NodeList nodes = (NodeList)xpe.evaluate(src, XPathConstants.NODESET);
                        if (nodes.getLength() > 0) {
                            String key = schema.getSourceURI();
                            binding = convertToTmpInputSource(d.getDocumentElement(), key);
                            opts.addBindFile(binding);
                            binding = null;
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        XPath xpath = factory.newXPath();
        final NamespaceContext nsContext = this.getNamespaceContext();
        xpath.setNamespaceContext(nsContext);
       
        // Signature Algorithm
        final XPathExpression sigAlgoExpr =
            xpath.compile("/s:Envelope/s:Header/wsse:Security/ds:Signature/ds:SignedInfo"
                              + "/ds:SignatureMethod/@Algorithm");
       
        final String sigMethod =  (String) sigAlgoExpr.evaluate(signedDoc, XPathConstants.STRING);
        assertEquals(expectedSignatureMethod, sigMethod);
       
        // Digest Method Algorithm
        final XPathExpression digestAlgoExpr = xpath.compile(
            "/s:Envelope/s:Header/wsse:Security/ds:Signature/ds:SignedInfo/ds:Reference/ds:DigestMethod");
       
        final NodeList digestMethodNodes =
            (NodeList) digestAlgoExpr.evaluate(signedDoc, XPathConstants.NODESET);
       
        for (int i = 0; i < digestMethodNodes.getLength(); i++) {
            Node node = (Node)digestMethodNodes.item(i);
            String digestAlgorithm = node.getAttributes().getNamedItem("Algorithm").getNodeValue();
            assertEquals(expectedDigestAlgorithm, digestAlgorithm);
        }
       
        // Canonicalization Algorithm
        final XPathExpression canonAlgoExpr =
            xpath.compile("/s:Envelope/s:Header/wsse:Security/ds:Signature/ds:SignedInfo"
                              + "/ds:CanonicalizationMethod/@Algorithm");
        final String canonMethod =  (String) canonAlgoExpr.evaluate(signedDoc, XPathConstants.STRING);
        assertEquals(expectedCanonAlgorithm, canonMethod);
    }
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        XPath xpath = factory.newXPath();
        final NamespaceContext nsContext = this.getNamespaceContext();
        xpath.setNamespaceContext(nsContext);
       
        // Find the SecurityTokenReference for the assertion
        final XPathExpression strExpr = xpath.compile(
            "/s:Envelope/s:Header/wsse:Security/wsse:SecurityTokenReference/wsse:KeyIdentifier");
       
        final NodeList strKeyIdNodes =
            (NodeList) strExpr.evaluate(signedDoc, XPathConstants.NODESET);
       
        String strId = null;
        for (int i = 0; i < strKeyIdNodes.getLength(); i++) {
            Node keyIdNode = (Node) strKeyIdNodes.item(i);
            String strKey = keyIdNode.getTextContent();
            if (strKey.equals(assertionId)) {
                Node strNode = (Node) keyIdNode.getParentNode();
                strId = strNode.getAttributes().
                    getNamedItemNS(nsContext.getNamespaceURI("wsu"), "Id").getNodeValue();
                break;
            }
        }
        assertNotNull("SecurityTokenReference for " + assertionId + " not found in security header.", strId);
       
        // Verify STR is included in the signature references
        final XPathExpression sigRefExpr = xpath.compile(
            "/s:Envelope/s:Header/wsse:Security/ds:Signature/ds:SignedInfo/ds:Reference");
       
        final NodeList sigReferenceNodes =
            (NodeList) sigRefExpr.evaluate(signedDoc, XPathConstants.NODESET);
       
        boolean foundStrReference = false;
        for (int i = 0; i < sigReferenceNodes.getLength(); i++) {
            Node sigRefNode = (Node) sigReferenceNodes.item(i);
            String sigRefURI = sigRefNode.getAttributes().getNamedItem("URI").getNodeValue();
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                String s = r.getAttributeValue(null, "schemaLocation");
                if (StringUtils.isEmpty(s)) {
                    Document d = StaxUtils.read(r);
                    XPath p = XPathFactory.newInstance().newXPath();
                    p.setNamespaceContext(new W3CNamespaceContext(d.getDocumentElement()));
                    XPathExpression xpe = p.compile(d.getDocumentElement().getAttribute("node"));
                    for (XmlSchema schema : schemas.getXmlSchemas()) {
                        if (XMLConstants.W3C_XML_SCHEMA_NS_URI.equals(schema.getTargetNamespace())) {
                            continue;
                        }
                        Object src = getSchemaNode(schema, schemas);
                        NodeList nodes = (NodeList)xpe.evaluate(src, XPathConstants.NODESET);
                        if (nodes.getLength() > 0) {
                            String key = schema.getSourceURI();
                            binding = convertToTmpInputSource(d.getDocumentElement(), key);
                            opts.addBindFile(binding);
                            binding = null;
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      // evaluate XPath expressions which are stored in xpathList
      // and save result nodes in queryList
      for (int j = 0; j < this.xpathList.size(); j++) {
        XPathFactory factory = XPathFactory.newInstance();
        XPath xpath = factory.newXPath();
        XPathExpression expr = xpath.compile(this.xpathList.get(j));
        Object results = expr.evaluate(doc, XPathConstants.NODESET);
        NodeList nodes = (NodeList) results;
        queryList.add(nodes);
      }

      List<List<Triple>> result = new ArrayList<List<Triple>>();
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        return sw.toString().getBytes();
    }

    private static void addAlwaysApplicablePolicySets(PolicySet policySet,
                                                      Document doc) throws XPathExpressionException {
        XPathExpression expression = policySet.getAlwaysAppliesToXPathExpression();
        NodeList result = (NodeList)expression.evaluate(doc, XPathConstants.NODESET);

        if (result != null) {
            for (int counter = 0; counter < result.getLength(); ++counter) {
                Node aResultNode = result.item(counter);
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        }
    }

    private static void addApplicablePolicySets(PolicySet policySet,
                                         Document doc) throws XPathExpressionException {
        XPathExpression expression = policySet.getAppliesToXPathExpression();
        NodeList result = (NodeList)expression.evaluate(doc, XPathConstants.NODESET);

        if (result != null) {
            for (int counter = 0; counter < result.getLength(); ++counter) {
                Node aResultNode = result.item(counter);
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   * Apply an XPath query to an XML document.
   */
  public IterableElementList xpath(Node doc, String query) throws XPathExpressionException {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expr = xpath.compile(query);
    NodeList result = (NodeList) expr.evaluate(doc, XPathConstants.NODESET);
    return new IterableElementList(result);
  }
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