Examples of javax.xml.xpath.XPath.compile()

javax.xml.xpath.XPath.compile()

Compile an XPath expression for later evaluation.

If expression contains any {@link XPathFunction}s, they must be available via the {@link XPathFunctionResolver}. An {@link XPathExpressionException} will be thrown if the XPathFunctioncannot be resovled with the XPathFunctionResolver.

If expression is null, a NullPointerException is thrown.
@param expression The XPath expression. @return Compiled XPath expression. @throws XPathExpressionException If expression cannot be compiled. @throws NullPointerException If expression is null.

      {
         // System.setProperty("javax.xml.xpath.XPathFactory",
         // "com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl") ;
         // XPathFactory xpfactory = XPathFactory.newInstance() ;
         XPath xpath = XPathFactory.newInstance().newXPath();
         XPathExpression clientTypeExp = xpath.compile("/clients-type/client-type");
         XPathExpression nameExp = xpath.compile("name/text()");
         XPathExpression userAgentPatternExp = xpath.compile("userAgentPattern/text()");
         XPathExpression preferredMimeTypeExp = xpath.compile("preferredMimeType/text()");
         XPathExpression rendererExp = xpath.compile("renderer/text()");
         ClassLoader cl = Thread.currentThread().getContextClassLoader();

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         // System.setProperty("javax.xml.xpath.XPathFactory",
         // "com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl") ;
         // XPathFactory xpfactory = XPathFactory.newInstance() ;
         XPath xpath = XPathFactory.newInstance().newXPath();
         XPathExpression clientTypeExp = xpath.compile("/clients-type/client-type");
         XPathExpression nameExp = xpath.compile("name/text()");
         XPathExpression userAgentPatternExp = xpath.compile("userAgentPattern/text()");
         XPathExpression preferredMimeTypeExp = xpath.compile("preferredMimeType/text()");
         XPathExpression rendererExp = xpath.compile("renderer/text()");
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         java.net.URL url = cl.getResource("conf/portal/clients-type.xml");

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         // "com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl") ;
         // XPathFactory xpfactory = XPathFactory.newInstance() ;
         XPath xpath = XPathFactory.newInstance().newXPath();
         XPathExpression clientTypeExp = xpath.compile("/clients-type/client-type");
         XPathExpression nameExp = xpath.compile("name/text()");
         XPathExpression userAgentPatternExp = xpath.compile("userAgentPattern/text()");
         XPathExpression preferredMimeTypeExp = xpath.compile("preferredMimeType/text()");
         XPathExpression rendererExp = xpath.compile("renderer/text()");
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         java.net.URL url = cl.getResource("conf/portal/clients-type.xml");
         // S ystem.setProperty("javax.xml.parsers.DocumentBuilderFactory",

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         // XPathFactory xpfactory = XPathFactory.newInstance() ;
         XPath xpath = XPathFactory.newInstance().newXPath();
         XPathExpression clientTypeExp = xpath.compile("/clients-type/client-type");
         XPathExpression nameExp = xpath.compile("name/text()");
         XPathExpression userAgentPatternExp = xpath.compile("userAgentPattern/text()");
         XPathExpression preferredMimeTypeExp = xpath.compile("preferredMimeType/text()");
         XPathExpression rendererExp = xpath.compile("renderer/text()");
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         java.net.URL url = cl.getResource("conf/portal/clients-type.xml");
         // S ystem.setProperty("javax.xml.parsers.DocumentBuilderFactory",
         // "com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl") ;

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         XPath xpath = XPathFactory.newInstance().newXPath();
         XPathExpression clientTypeExp = xpath.compile("/clients-type/client-type");
         XPathExpression nameExp = xpath.compile("name/text()");
         XPathExpression userAgentPatternExp = xpath.compile("userAgentPattern/text()");
         XPathExpression preferredMimeTypeExp = xpath.compile("preferredMimeType/text()");
         XPathExpression rendererExp = xpath.compile("renderer/text()");
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         java.net.URL url = cl.getResource("conf/portal/clients-type.xml");
         // S ystem.setProperty("javax.xml.parsers.DocumentBuilderFactory",
         // "com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl") ;
         // S ystem.out.println("==================> " +

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      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);
      }

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      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);
      }

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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);

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                                    }
                                }
                                XPath xpath = xPathFactory.newXPath();
                                xpath.setNamespaceContext(reader.getNamespaceContext());
                                try {
                                    componentProperty.setSourceXPathExpression(xpath.compile(source));
                                } catch (XPathExpressionException e) {
                                  ContributionReadException ce = new ContributionReadException(e);
                                  error("ContributionReadException", xpath, ce);
                                    //throw ce;
                                }

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        XPathFunctionResolver parentResolver = getFunctionResolver();
        if (parentResolver == null) {
            parentResolver = xPath.getXPathFunctionResolver();
        }
        xPath.setXPathFunctionResolver(createDefaultFunctionResolver(parentResolver));
        return xPath.compile(text);
    }


    /**
     * Lets populate a number of standard prefixes if they are not already there
     */

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