Examples with XPathSelector net.sf.saxon.s9api.XPathSelector used on opensource projects

Example 1 with XPathSelector

use of net.sf.saxon.s9api.XPathSelector in project sirix by sirixdb.

the class TestNodeWrapperS9ApiXPath method testB.

@Test
public void testB() throws Exception {
    final XPathSelector selector = new XPathEvaluator.Builder("//b", mHolder.getSession()).build().call();
    final StringBuilder strBuilder = new StringBuilder();
    strBuilder.append("<result>");
    for (final XdmItem item : selector) {
        strBuilder.append(item.toString());
    }
    strBuilder.append("</result>");
    assertXMLEqual("expected pieces to be similar", "<result><b xmlns:p=\"ns\">foo<c xmlns:p=\"ns\"/></b><b xmlns:p=\"ns\" p:x=\"y\">" + "<c xmlns:p=\"ns\"/>bar</b></result>", strBuilder.toString());
}

Example 2 with XPathSelector

use of net.sf.saxon.s9api.XPathSelector in project sirix by sirixdb.

the class TestNodeWrapperS9ApiXPath method testCountB.

@Test
public void testCountB() throws Exception {
    final XPathSelector selector = new XPathEvaluator.Builder("count(//b)", mHolder.getSession()).build().call();
    final StringBuilder sb = new StringBuilder();
    for (final XdmItem item : selector) {
        sb.append(item.getStringValue());
    }
    assertEquals("2", sb.toString());
}

Example 3 with XPathSelector

use of net.sf.saxon.s9api.XPathSelector in project sirix by sirixdb.

the class TestNodeWrapperS9ApiXPath method testB2.

@Test
public void testB2() throws Exception {
    final XPathSelector selector = new XPathEvaluator.Builder("//b[2]", mHolder.getSession()).build().call();
    final StringBuilder strBuilder = new StringBuilder();
    for (final XdmItem item : selector) {
        strBuilder.append(item.toString());
    }
    assertXMLEqual("expected pieces to be similar", "<b xmlns:p=\"ns\" p:x=\"y\"><c xmlns:p=\"ns\"/>bar</b>", strBuilder.toString());
}

Example 4 with XPathSelector

use of net.sf.saxon.s9api.XPathSelector in project sirix by sirixdb.

the class XPathEvaluator method call.

@Override
public XPathSelector call() throws Exception {
    final Processor proc = new Processor(false);
    final Configuration config = proc.getUnderlyingConfiguration();
    final NodeInfo doc = new DocumentWrapper(mSession, mRevision, config);
    final XPathCompiler xpath = proc.newXPathCompiler();
    final DocumentBuilder builder = proc.newDocumentBuilder();
    final XdmItem item = builder.wrap(doc);
    final XPathSelector selector = xpath.compile(mExpression).load();
    selector.setContextItem(item);
    return selector;
}

Example 5 with XPathSelector

use of net.sf.saxon.s9api.XPathSelector in project jmeter by apache.

the class XPathUtil method computeAssertionResultUsingSaxon.

/**
 * @param result The result of xpath2 assertion
 * @param xmlFile XML data
 * @param xPathQuery XPath Query
 * @param namespaces Space separated set of prefix=namespace
 * @param isNegated invert result
 * @throws SaxonApiException when the parser has problems with the given xml or xpath query
 * @throws FactoryConfigurationError when the parser can not be instantiated
 */
public static void computeAssertionResultUsingSaxon(AssertionResult result, String xmlFile, String xPathQuery, String namespaces, Boolean isNegated) throws SaxonApiException, FactoryConfigurationError {
    // generating the cache key
    final ImmutablePair<String, String> key = ImmutablePair.of(xPathQuery, namespaces);
    // check the cache
    XPathExecutable xPathExecutable;
    if (StringUtils.isNotEmpty(xPathQuery)) {
        xPathExecutable = XPATH_CACHE.get(key);
    } else {
        log.warn("Error : {}", JMeterUtils.getResString("xpath2_extractor_empty_query"));
        return;
    }
    try (StringReader reader = new StringReader(xmlFile)) {
        // We could instantiate it once but might trigger issues in the future
        // Sharing of a DocumentBuilder across multiple threads is not recommended.
        // However, in the current implementation sharing a DocumentBuilder (once
        // initialized)
        // will only cause problems if a SchemaValidator is used.
        net.sf.saxon.s9api.DocumentBuilder builder = PROCESSOR.newDocumentBuilder();
        XdmNode xdmNode = builder.build(new SAXSource(new InputSource(reader)));
        if (xPathExecutable != null) {
            XPathSelector selector = null;
            try {
                Document doc;
                doc = XPathUtil.makeDocumentBuilder(false, false, false, false).newDocument();
                XObject xObject = XPathAPI.eval(doc, xPathQuery, getPrefixResolverForXPath2(doc, namespaces));
                selector = xPathExecutable.load();
                selector.setContextItem(xdmNode);
                XdmValue nodes = selector.evaluate();
                boolean resultOfEval = true;
                int length = nodes.size();
                // In case we need to extract everything
                if (length == 0) {
                    resultOfEval = false;
                } else if (xObject.getType() == XObject.CLASS_BOOLEAN) {
                    resultOfEval = Boolean.parseBoolean(nodes.itemAt(0).getStringValue());
                }
                result.setFailure(isNegated ? resultOfEval : !resultOfEval);
                result.setFailureMessage(isNegated ? "Nodes Matched for " + xPathQuery : "No Nodes Matched for " + xPathQuery);
            } catch (ParserConfigurationException | TransformerException e) {
                // NOSONAR Exception handled by return
                result.setError(true);
                result.setFailureMessage("Exception: " + e.getMessage() + " for:" + xPathQuery);
            } finally {
                if (selector != null) {
                    try {
                        selector.getUnderlyingXPathContext().setContextItem(null);
                    } catch (Exception e) {
                        // NOSONAR Ignored on purpose
                        result.setError(true);
                        result.setFailureMessage("Exception: " + e.getMessage() + " for:" + xPathQuery);
                    }
                }
            }
        }
    }
}