import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
@Override
public ExpressionEvaluatorFactory<XdmItem> getExpressionEvaluatorFactory() {
	return entry -> expression -> {
		try {
			XPathSelector selector = xpath.compile(expression).load();
			selector.setContextItem(entry);
			XdmItem value = selector.evaluateSingle();
			
			if (value == null) {
				return Optional.empty();
			}
			
			String result = autoNodeTextExtraction ? value.getStringValue() : value.toString();
			return Optional.of(result);
			
		} catch (SaxonApiException e) {
			throw new RuntimeException(String.format(
					"Error applying XPath expression [%s] to entry [%s]", entry, expression), 
					e);
		}
	};
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
@Test
public void testAddAttribute() throws Exception {
    GauloisPipe piper = new GauloisPipe(configFactory);
    ConfigUtil cu = new ConfigUtil(configFactory.getConfiguration(), piper.getUriResolver(), "./src/test/resources/AddAttributeJavaStep.xml");
    Config config = cu.buildConfig(emptyInputParams);
    config.verify();
    piper.setConfig(config);
    piper.setInstanceName("ADD_ATTRIBUTE");
    piper.launch();
    Processor proc = new Processor(configFactory.getConfiguration());
    File expect = new File("target/generated-test-files/source-identity-addAttribute.xml");
    XdmNode document = proc.newDocumentBuilder().build(expect);
    XPathExecutable exec = proc.newXPathCompiler().compile("//*[@test]");
    XPathSelector selector = exec.load();
    selector.setContextItem((XdmItem)document);
    XdmValue result = selector.evaluate();
    assertTrue(result.size()>0);
    expect.delete();
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
@Test
public void testXdmValueToXsl() throws InvalidSyntaxException, SaxonApiException, URISyntaxException, IOException, ValidationException  {
    GauloisPipe piper = new GauloisPipe(configFactory);
    ConfigUtil cu = new ConfigUtil(configFactory.getConfiguration(), piper.getUriResolver(), "./src/test/resources/paramDate.xml");
    HashMap<QName,ParameterValue> params = new HashMap<>();
    QName qnDate = new QName("date");
    // to get a date XdmValue from saxon, we must be brilliants !
    Processor proc = new Processor(configFactory.getConfiguration());
    XQueryEvaluator ev = proc.newXQueryCompiler().compile("current-dateTime()").load();
    XdmItem item = ev.evaluateSingle();
    params.put(qnDate, new ParameterValue(qnDate, item, factory.getDatatype(new QName("xs","http://www.w3.org/2001/XMLSchema","dateTime"))));
    Config config = cu.buildConfig(params);
    config.verify();
    piper.setConfig(config);
    piper.setInstanceName("XDM_VALUE_TO_XSL");
    piper.launch();
    File expect = new File("target/generated-test-files/date-output.xml");
    XdmNode document = proc.newDocumentBuilder().build(expect);
    XPathExecutable exec = proc.newXPathCompiler().compile("/date");
    XPathSelector selector = exec.load();
    selector.setContextItem((XdmItem)document);
    XdmValue result = selector.evaluate();
    assertTrue(result.size()>0);
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
public void testStaticBaseUri() throws InvalidSyntaxException, SaxonApiException, URISyntaxException, IOException, ValidationException {
    File expect = new File("target/generated-test-file/static-base-uri-ret.xml");
    if(expect.exists()) expect.delete();
    GauloisPipe piper = new GauloisPipe(configFactory);
    ConfigUtil cu = new ConfigUtil(configFactory.getConfiguration(), piper.getUriResolver(), "./src/test/resources/static-base-uri.xml");
    HashMap<QName,ParameterValue> params = new HashMap<>();
    Config config = cu.buildConfig(params);
    config.verify();
    piper.setConfig(config);
    piper.setInstanceName("STATIC-BASE-URI");
    piper.launch();
    assertTrue(expect.exists());
    Processor proc = new Processor(configFactory.getConfiguration());
    XdmNode document = proc.newDocumentBuilder().build(expect);
    XPathExecutable exec = proc.newXPathCompiler().compile("/ret/*/text()");
    XPathSelector selector = exec.load();
    selector.setContextItem((XdmItem)document);
    XdmValue result = selector.evaluate();
    String staticBaseUri = result.itemAt(0).getStringValue();
    String gpStaticBaseUri = result.itemAt(1).getStringValue();
    assertTrue("gp:staticBaseUri does not ends with target/classes/xsl/static-base-uri-ret.xml", gpStaticBaseUri.endsWith("target/classes/xsl/static-base-uri-ret.xml"));
    expect.delete();
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
private void checkResult(final XsltConref xsltConref, final NodeInfo resolvedElement) {
	
	// check for missing class attribute
	try {
		final XdmNode		context	= new XdmNode(resolvedElement);
		final XPathSelector sel		= otResolver.getXPathCache().getXPathSelector(MISSING_CLASS_XPATH, context);
		final XdmItem item = sel.evaluateSingle();
		if (item != null) {
			String name;
			if (item instanceof XdmNode) {
				name = "node '" + ((XdmNode)item).getNodeName() + "'";
			} else {
				name = "item '" + item.getStringValue() + "'";
			}
			otResolver.getOtLogger().error("[DOT-DITA-SEMIA][ERROR] Missing class attribute in resolved xslt-conref '" + xsltConref.getScriptName() + "'. E.g. on " + name + ".");
		}
		
	} catch (SaxonApiException | XPathException e) {
		logger.error(e.getMessage(), e);
	}
	
	
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
public static List<String> applyXpath(String xml, String xpathString) {
  List<String> result = new ArrayList<>();
  try {
    Processor proc = new Processor(false);
    XPathCompiler xpath = proc.newXPathCompiler();
    DocumentBuilder builder = proc.newDocumentBuilder();

    // Load the XML document.
    StringReader reader = new StringReader(xml);
    XdmNode doc = builder.build(new StreamSource(reader));

    // Compile the xpath
    XPathSelector selector = xpath.compile(xpathString).load();
    selector.setContextItem(doc);

    // Evaluate the expression.
    XdmValue nodes = selector.evaluate();

    for (XdmItem item : nodes) {
      result.add(item.toString());
    }

  } catch (Exception e) {
    LOGGER.error("Error applying XPath", e);
  }
  return result;
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
/**
 * Evaluates an XPath 2.0 expression using the Saxon s9api interfaces.
 *
 * @param xmlSource
 *            The XML Source.
 * @param expr
 *            The XPath expression to be evaluated.
 * @param nsBindings
 *            A collection of namespace bindings required to evaluate the
 *            XPath expression, where each entry maps a namespace URI (key)
 *            to a prefix (value).
 * @return An XdmValue object representing a value in the XDM data model;
 *         this is a sequence of zero or more items, where each item is
 *         either an atomic value or a node.
 * @throws SaxonApiException
 *             If an error occurs while evaluating the expression; this
 *             always wraps some other underlying exception.
 */
public static XdmValue evaluateXPath2(Source xmlSource, String expr,
        Map<String, String> nsBindings) throws SaxonApiException {
    Processor proc = new Processor(false);
    XPathCompiler compiler = proc.newXPathCompiler();
    for (String nsURI : nsBindings.keySet()) {
        compiler.declareNamespace(nsBindings.get(nsURI), nsURI);
    }
    XPathSelector xpath = compiler.compile(expr).load();
    DocumentBuilder builder = proc.newDocumentBuilder();
    XdmNode node = null;
    if (DOMSource.class.isInstance(xmlSource)) {
        DOMSource domSource = (DOMSource) xmlSource;
        node = builder.wrap(domSource.getNode());
    } else {
        node = builder.build(xmlSource);
    }
    xpath.setContextItem(node);
    return xpath.evaluate();
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
private Iterable<XdmItem> getIterableXpathResult(String source, String iteratorExpression) {
	DocumentBuilder documentBuilder = xpathProcessor.newDocumentBuilder();
	StringReader reader = new StringReader(source);
	try {
		XdmNode item = documentBuilder.build(new StreamSource(reader));
		XPathSelector selector = xpath.compile(iteratorExpression).load();
		selector.setContextItem(item);
		return selector;
	} catch (SaxonApiException e) {
		throw new RuntimeException(e);
	}
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
@Override
public void initialize(InputSplit inSplit, TaskAttemptContext context)
        throws IOException, InterruptedException {
    Path file = ((FileSplit)inSplit).getPath();
    FileSystem fs = file.getFileSystem(context.getConfiguration());
    FSDataInputStream fileIn = fs.open(file);
    DocumentBuilder docBuilder = builderLocal.get();
    try {
        Document document = docBuilder.parse(fileIn);
        net.sf.saxon.s9api.DocumentBuilder db = saxonBuilderLocal.get();
        XdmNode xdmDoc = db.wrap(document);
        XPathCompiler xpath = proc.newXPathCompiler();
        xpath.declareNamespace("wp", 
                "http://www.mediawiki.org/xml/export-0.4/");
        XPathSelector selector = xpath.compile(PATH_EXPRESSION).load();
        selector.setContextItem(xdmDoc);
        items = new ArrayList<XdmItem>();
        for (XdmItem item : selector) {
            items.add(item);
        }
    } catch (SAXException ex) {
        ex.printStackTrace();
        throw new IOException(ex);
    } catch (SaxonApiException e) {
        e.printStackTrace();
    } finally {
        if (fileIn != null) {
            fileIn.close();
        }
    }
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
/**
 * This evaluates an XML message against a provided XPath expression.
 *
 * @param inputStream input stream to be evaluated
 * @param xpathExpression XPath expression to evaluate the OMElement against
 * @return The resulting value
 * @throws MessageBodyEvaluationException
 */
@Override
public Object evaluate(InputStream inputStream, String xpathExpression) throws MessageBodyEvaluationException {
    try {
        InputStreamReader inputStreamReader = new InputStreamReader(inputStream, StandardCharsets.UTF_8);
        DocumentBuilder builder = processor.newDocumentBuilder();
        XdmNode doc = builder.build(new StreamSource(inputStreamReader));
        XPathSelector selector = xPathCompiler.compile(xpathExpression).load();
        selector.setContextItem(doc);
        return selector.evaluate();
    } catch (SaxonApiException e) {
        throw new MessageBodyEvaluationException("There is a problem evaluating the XPath", e);
    }
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
private Datatype constructElementParserDatatype(final QName qn, final boolean allowsEmpty, final boolean allowsMultiple) throws ValidationException {
    return new Datatype() {
        @Override
        public boolean isAtomic() { return false; }
        @Override
        public boolean allowsMultiple() { return allowsMultiple; }
        @Override
        public boolean allowsEmpty() { return allowsEmpty; }
        @Override
        public XdmValue convert(String input, Configuration configuration) throws ValidationException {
            Processor proc = new Processor(configuration);
            DocumentBuilder builder = proc.newDocumentBuilder();
            String wrappedInput="<fake:document xmlns:fake=\"top:marchand:xml:gaulois:wrapper\">".concat(input).concat("</fake:document>");
            InputStream is = new ByteArrayInputStream(wrappedInput.getBytes(Charset.forName("UTF-8")));
            try {
                XdmNode documentNode = builder.build(new StreamSource(is));
                XPathCompiler compiler = proc.newXPathCompiler();
                compiler.declareNamespace("fake", "top:marchand:xml:gaulois:wrapper");
                XPathSelector selector = compiler.compile("/fake:document/node()").load();
                selector.setContextItem(documentNode);
                XdmValue ret = selector.evaluate();
                if(ret.size()==0 && !allowsEmpty()) throw new ValidationException(qn.toString()+" does not allow empty sequence");
                if(ret.size()>1 && !allowsMultiple()) throw new ValidationException(qn.toString()+" does not allow sequence with more than one element");
                return ret;
            } catch(SaxonApiException ex) {
                throw new ValidationException(input+" can not be casted to "+qn.toString());
            }
        }
    };
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
public XPathSelector getXPathSelector(String xPath, XdmNode context) throws XPathException, SaxonApiException {
	final boolean			schemaAware = (context.getUnderlyingNode().getSchemaType() != Untyped.getInstance());
	final XPathExecutable	executable	= getXPathExecutable(xPath, schemaAware);
	final XPathSelector		selector	= executable.load();
	selector.setContextItem(context);
	return selector;
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
private XPathSelector getXPathSelector(String xPath) throws XPathException, SaxonApiException {
	if (xPathCache == null) {
		throw new XPathException("SaxonNodeWrapper: Can't evaluate XPath ('" + xPath + "') without XPathCache.");
	} else {
		return xPathCache.getXPathSelector(xPath, new XdmNode(saxonNode));
	}
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
public XPathSelector select(String expr, IndependentContext context, @Nullable XdmItem contextItem) throws SaxonApiException {
    XPathSelector xpathSel = this.compile(expr, context).load();

    if (contextItem != null) {
        xpathSel.setContextItem(contextItem);
    }

    return xpathSel;
}
 

import net.sf.saxon.s9api.XPathSelector; //导入依赖的package包/类
public static XdmValue evaluate(XPathCompiler compiler, String xpath)
        throws ToolsException
             , SaxonApiException
{
    XPathExecutable exec = compiler.compile(xpath);
    XPathSelector expr = exec.load();
    return expr.evaluate();
}