Examples of org.jaxen.XPath

org.jaxen.XPath
Defines the interface to an object which represents an XPath 1.0 expression which can be evaluated against a variety of different XML object models.
Most of the evaluation methods take a context object. This is typically a node or node set object (which is typically a List of node objects) or a Jaxen Context object. A null context is allowed, meaning that there is no XML nodes on which to evaluate.
@see org.jaxen.dom4j.Dom4jXPath XPath for dom4j @see org.jaxen.jdom.JDOMXPath XPath for JDOM @see org.jaxen.dom.DOMXPath XPath for W3C DOM @see org.jaxen.exml.ElectricXPath XPath for Electric XML @author bob mcwhirter @author James Strachan

        {
            throw new QueryEvaluationErrorException( MSG.getMessage( Keys.BAD_XPATH_NAMESPACE_CONTEXT ) );
        }
        try
        {
            XPath xpath = new DOMXPath( xpathExpr.getValue() );
            xpath.setNamespaceContext( new JaxenNamespaceContext( xpathExpr.getNamespaceContext() ) );
            return xpath.evaluate( evalContextNode );
        }
        catch ( JaxenException je )
        {
            throw new QueryEvaluationErrorException( MSG.getMessage( Keys.XPATH_FAILED, xpathExpr.getValue(),
                    je ) );

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            if(dataRef == null || dataRef.getXpath() == null) {
                continue;
            }


            try {
                XPath xp = new AXIOMXPath(dataRef.getXpath());


                Iterator nsIter = namespaces.iterator();


                while (nsIter.hasNext())
                {
                    OMNamespace tmpNs = (OMNamespace)nsIter.next();
                    xp.addNamespace(tmpNs.getPrefix(), tmpNs.getNamespaceURI());
                }


                Iterator nodesIterator = xp.selectNodes(envelope).iterator();


                while (nodesIterator.hasNext()) {
                    decryptedElements.put(nodesIterator.next(), Boolean.valueOf(dataRef.isContent()));
                }




            } catch (JaxenException e) {
                // This has to be changed to propagate an instance of a RampartException up
                throw new RampartException("An error occurred while searching for decrypted elements.", e);
            }


        }


        
        //Check for encrypted body
        if(rpd.isEncryptBody()&& !rpd.isEncryptBodyOptional()) {
            
            if( !isRefIdPresent(encrRefs, data.getBodyEncrDataId())){
                throw new RampartException("encryptedPartMissing", 
                        new String[]{data.getBodyEncrDataId()});
            }
        }


        for (int i = 0 ; i < encryptedParts.size() ; i++) {
            
            WSEncryptionPart encPart = (WSEncryptionPart)encryptedParts.get(i);
            
            //This is the encrypted Body and we already checked encrypted body
            if (encPart.getType() == WSConstants.PART_TYPE_BODY) {
                continue;
            }
            
            if ((WSConstants.SIG_LN.equals(encPart.getName()) &&
                    WSConstants.SIG_NS.equals(encPart.getNamespace()))
                   || encPart.getType() == WSConstants.PART_TYPE_HEADER ) {
                if (!isRefIdPresent(encrRefs, new QName(encPart.getNamespace(),encPart.getName()))) {
                    throw new RampartException("encryptedPartMissing", 
                            new String[]{encPart.getNamespace()+":"+encPart.getName()}); 
                }
                continue;
            }


            // it is not a header or body part... verify encrypted xpath elements
            String xpath = encPart.getXpath();
            boolean found = false;
            try {
                XPath xp = new AXIOMXPath(xpath);
                Iterator nsIter = namespaces.iterator();


                while (nsIter.hasNext()) {
                    OMNamespace tmpNs = (OMNamespace) nsIter.next();
                    xp.addNamespace(tmpNs.getPrefix(), tmpNs.getNamespaceURI());
                }


                Iterator nodesIterator = xp.selectNodes(envelope).iterator();


                while (nodesIterator.hasNext()) {
                    Object result = decryptedElements.get(nodesIterator.next());
                    if (result != null &&
                            ("Element".equals(encPart.getEncModifier())

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        Iterator elementsIter = elements.iterator();
        while (elementsIter.hasNext())
        {
                String expression = (String)elementsIter.next();
                try {
                                XPath xp = new AXIOMXPath(expression);
                                Iterator nsIter = namespaces.iterator();
                                
                                while (nsIter.hasNext())
                                {
                                        OMNamespace tmpNs = (OMNamespace)nsIter.next();
                                        xp.addNamespace(tmpNs.getPrefix(), tmpNs.getNamespaceURI());
                                }
                                
                                List selectedNodes = xp.selectNodes(envelope);
                                
                                Iterator nodesIter = selectedNodes.iterator();
                                
                            while (nodesIter.hasNext())
                            {

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        Iterator elementsIter = elements.iterator();
        while (elementsIter.hasNext())
        {
          String expression = (String)elementsIter.next();
          try {
        XPath xp = new AXIOMXPath(expression);
        Iterator nsIter = namespaces.iterator();
        
        while (nsIter.hasNext())
        {
          OMNamespace tmpNs = (OMNamespace)nsIter.next();
          xp.addNamespace(tmpNs.getPrefix(), tmpNs.getNamespaceURI());
        }
        
        List selectedNodes = xp.selectNodes(envelope);
        
        Iterator nodesIter = selectedNodes.iterator();
          while (nodesIter.hasNext())
          {
            OMElement e = (OMElement)nodesIter.next();

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        SOAPHeader header = envelope.getHeader();
        
        Set namespaces = findAllPrefixNamespaces(header, decNamespaces);


        try {
                        XPath xp = new AXIOMXPath(expression);
                        Iterator nsIter = namespaces.iterator();
                        
                        while (nsIter.hasNext())
                        {
                                OMNamespace tmpNs = (OMNamespace)nsIter.next();
                                xp.addNamespace(tmpNs.getPrefix(), tmpNs.getNamespaceURI());
                        }
                        
                        List selectedNodes = xp.selectNodes(header);
                        
                        if (selectedNodes.size() == 0 ) {
                            return false;
                        }

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            xpathString = (String)arg;
        else
            xpathString = StringFunction.evaluate(arg, nav);


        try {
            XPath xpath = nav.parseXPath(xpathString);
            ContextSupport support = context.getContextSupport();
            xpath.setVariableContext( support.getVariableContext() );
            xpath.setFunctionContext( support.getFunctionContext() );
            xpath.setNamespaceContext( support.getNamespaceContext() );
            return xpath.selectNodes( context.duplicate() );
        }
        catch ( SAXPathException e ) {
            throw new FunctionCallException(e.toString());
        }
    }

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                nsContext.addNamespace(NAMESPACE_PREFIX,
                                       root.getNamespaceURI());


                // Grab the message-store element to allow extraction of the
                // various attributes
                XPath xpath = new JDOMXPath("//" +
                                            NAMESPACE_PREFIX + ":" +
                                            MSS_CONFIG_MESSAGESTORE_ELEMENT);
                xpath.setNamespaceContext(nsContext);


                Element element = (Element) xpath.selectSingleNode(root);


                // Location
                config.setLocation(element.getAttributeValue(
                        MSS_CONFIG_LOCATION_ATTRIBUTE));


                // ID Size
                config.setIdSize(Integer.parseInt(element.getAttributeValue(
                        MSS_CONFIG_IDSIZE_ATTRIBUTE)));


                // Timeout
                String timeout = element.getAttributeValue(
                        MSS_CONFIG_TIMEOUT_ATTRIBUTE);
                if (timeout.equalsIgnoreCase(UNLIMITED)) {
                    config.setUnlimitedTimeout(true);
                } else {
                    config.setTimeout(Integer.parseInt(timeout));
                }


                // Validation
                String validate = element.getAttributeValue(
                        MSS_CONFIG_VALIDATE_ATTRIBUTE);
                config.setValidate(validate.equals("true"));


                // Get the environment element and extract the log4j attribute
                xpath = new JDOMXPath("//" +
                                      NAMESPACE_PREFIX + ":" +
                                      MSS_CONFIG_ENVIRONMENT_ELEMENT);
                xpath.setNamespaceContext(nsContext);


                element = (Element) xpath.selectSingleNode(root);
                config.setLog4jConfigurationFile(
                        element.getAttributeValue(MSS_CONFIG_LOG4J_ATTRIBUTE));
            } else {
                handleConfigError(null);
            }

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        throw new AssertionError("UNREACHABLE");
    }


    public List evaluate(OExpression cexp, EvaluationContext ctx) throws FaultException, EvaluationException {
        try {
            XPath compiledXPath = compile((OXPath10Expression) cexp);
            Context context = createContext((OXPath10Expression) cexp, ctx);


            List retVal = compiledXPath.selectNodes(context);


            if ((retVal.size() == 1) && !(retVal.get(0) instanceof Node)) {
                Document d = DOMUtils.newDocument();
                // Giving our node a parent just in case it's an LValue
                // expression

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        return jctx;
    }


    private XPath compile(OXPath10Expression exp) throws JaxenException {
        XPath xpath = _compiledExpressions.get(exp.xpath);
        if (xpath == null) {
            xpath = new DOMXPath(exp.xpath);
            synchronized (_compiledExpressions) {
                _compiledExpressions.put(exp.xpath, xpath);
            }

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        Iterator elementsIter = elements.iterator();
        while (elementsIter.hasNext())
        {
                String expression = (String)elementsIter.next();
                try {
                                XPath xp = new AXIOMXPath(expression);
                                Iterator nsIter = namespaces.iterator();
                                
                                while (nsIter.hasNext())
                                {
                                        OMNamespace tmpNs = (OMNamespace)nsIter.next();
                                        xp.addNamespace(tmpNs.getPrefix(), tmpNs.getNamespaceURI());
                                }
                                
                                List selectedNodes = xp.selectNodes(envelope);
                                
                                Iterator nodesIter = selectedNodes.iterator();
                                
                            while (nodesIter.hasNext())
                            {

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