Example usage for org.dom4j XPath selectSingleNode

List of usage examples for org.dom4j XPath selectSingleNode

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Introduction

In this page you can find the example usage for org.dom4j XPath selectSingleNode.

Prototype

Node selectSingleNode(Object context);

Source Link

Document

selectSingleNode evaluates this XPath expression on the given Node or List of Node s and returns the result as a single Node instance.

Usage

From source file:com.controlj.addon.weather.noaa.StationSourceImpl.java

License:Open Source License

private String getStringValue(XPath xpath) {
    String result = null;//from ww w  .  ja va  2 s .  c o  m
    Node node = xpath.selectSingleNode(stationNode);
    if (node != null) {
        result = node.getText();
    }
    return result;
}

From source file:com.digiaplus.modules.scorm.ScormCPManifestTreeModel.java

License:Apache License

/**
 * Constructor of the content packaging tree model
 * @param manifest the imsmanifest.xml file
 * @param itemStatus a Map containing the status of each item like "completed, not attempted, ..."
 *///ww w. ja v a  2s  .c o  m
public ScormCPManifestTreeModel(File manifest, Map itemStatus) {
    this.itemStatus = itemStatus;
    Document doc = loadDocument(manifest);
    // get all organization elements. need to set namespace
    rootElement = doc.getRootElement();
    String nsuri = rootElement.getNamespace().getURI();
    nsuris.put("ns", nsuri);

    XPath meta = rootElement.createXPath("//ns:organization");
    meta.setNamespaceURIs(nsuris);

    XPath metares = rootElement.createXPath("//ns:resources");
    metares.setNamespaceURIs(nsuris);
    Element elResources = (Element) metares.selectSingleNode(rootElement);
    if (elResources == null)
        throw new DAPRuntimeException(this.getClass(), "could not find element resources");

    List resourcesList = elResources.elements("resource");
    resources = new HashMap(resourcesList.size());
    for (Iterator iter = resourcesList.iterator(); iter.hasNext();) {
        Element elRes = (Element) iter.next();
        String identVal = elRes.attributeValue("identifier");
        String hrefVal = elRes.attributeValue("href");
        if (hrefVal != null) { // href is optional element for resource element
            try {
                hrefVal = URLDecoder.decode(hrefVal, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                // each JVM must implement UTF-8
            }
        }
        resources.put(identVal, hrefVal);
    }
    /*
     * Get all organizations
     */
    List organizations = new LinkedList();
    organizations = meta.selectNodes(rootElement);
    if (organizations.isEmpty()) {
        throw new DAPRuntimeException(this.getClass(), "could not find element organization");
    }
    GenericTreeNode gtn = buildTreeNodes(organizations);
    setRootNode(gtn);
    rootElement = null; // help gc
    resources = null;
}

From source file:com.glaf.jbpm.tag.JbpmProcessImageTag.java

License:Apache License

private int[] extractBoxConstraint(Element root) {
    int[] result = new int[4];
    String nodeName = currentToken.getNode().getName();
    XPath xPath = new DefaultXPath("//node[@name='" + nodeName + "']");
    Element node = (Element) xPath.selectSingleNode(root);
    if (node != null) {
        result[0] = Integer.parseInt(node.attribute("x").getValue());
        result[1] = Integer.parseInt(node.attribute("y").getValue());
        result[2] = Integer.parseInt(node.attribute("width").getValue());
        result[3] = Integer.parseInt(node.attribute("height").getValue());
    }//from www  .ja  v  a 2s.  c om
    return result;
}

From source file:com.glaf.jbpm.tag.JbpmProcessImageTag.java

License:Apache License

private int[] extractBoxConstraint(Element root, Token token) {
    int[] result = new int[4];
    String nodeName = token.getNode().getName();
    XPath xPath = new DefaultXPath("//node[@name='" + nodeName + "']");
    Element node = (Element) xPath.selectSingleNode(root);
    if (node != null) {
        result[0] = Integer.parseInt(node.attribute("x").getValue());
        result[1] = Integer.parseInt(node.attribute("y").getValue());
        result[2] = Integer.parseInt(node.attribute("width").getValue());
        result[3] = Integer.parseInt(node.attribute("height").getValue());
    }/*ww w . ja v a  2  s  . co m*/
    return result;
}

From source file:com.liferay.alloy.tools.builder.taglib.TagBuilder.java

License:Open Source License

protected Document mergeTlds(Document sourceDoc, Document targetDoc) {
    Element targetRoot = targetDoc.getRootElement();

    DocumentFactory factory = SAXReaderUtil.getDocumentFactory();

    XPath xpathTags = factory.createXPath("//tld:tag");

    Map<String, String> namespaceContextMap = new HashMap<String, String>();

    namespaceContextMap.put(_TLD_XPATH_PREFIX, _TLD_XPATH_URI);

    NamespaceContext namespaceContext = new AlloyGeneratorNamespaceContext(namespaceContextMap);

    xpathTags.setNamespaceContext(namespaceContext);

    List<Node> sources = xpathTags.selectNodes(sourceDoc);

    for (Node source : sources) {
        Element sourceElement = (Element) source;

        String sourceName = sourceElement.elementText("name");

        String xpathTagValue = "//tld:tag[tld:name='" + sourceName + "']";

        XPath xpathTag = factory.createXPath(xpathTagValue);

        xpathTag.setNamespaceContext(namespaceContext);

        List<Node> targets = xpathTag.selectNodes(targetDoc);

        if (targets.size() > 0) {
            Element targetElement = (Element) targets.get(0);

            XPath xpathAttributes = factory.createXPath(xpathTagValue + "//tld:attribute");

            Map<String, String> namespaces = new HashMap<String, String>();

            namespaces.put("tld", StringPool.EMPTY);

            xpathAttributes.setNamespaceURIs(namespaces);

            List<Node> sourceAttributes = xpathAttributes.selectNodes(source);

            for (Node sourceAttribute : sourceAttributes) {
                Element sourceAttributeElement = (Element) sourceAttribute;

                String attributeName = sourceAttributeElement.elementText("name");

                String xpathAttributeValue = "//tld:attribute[tld:name='" + attributeName + "']";

                XPath xpathAttribute = factory.createXPath(xpathTagValue + xpathAttributeValue);

                xpathAttribute.setNamespaceContext(namespaceContext);

                Node targetAttribute = xpathAttribute.selectSingleNode(targetElement);

                if (targetAttribute != null) {
                    targetAttribute.detach();
                }//w w  w  .j  av a2s .  c o m

                targetElement.add(sourceAttributeElement.createCopy());
            }

            Element dynamicAttrElement = targetElement.element("dynamic-attributes");

            if (dynamicAttrElement != null) {
                targetElement.add(dynamicAttrElement.detach());
            }
        } else {
            targetRoot.add(sourceElement.createCopy());
        }
    }

    return targetDoc;
}

From source file:com.ostrichemulators.semtool.ui.components.playsheets.BrowserPlaySheet2.java

License:Open Source License

protected BufferedImage getExportImageFromSVGBlock() throws IOException {
    log.debug("Using SVG block to save image.");
    DOMReader rdr = new DOMReader();
    Document doc = rdr.read(engine.getDocument());
    Document svgdoc = null;/*from  w w w .  j ava  2 s  .  c o  m*/
    File svgfile = null;
    try {
        Map<String, String> namespaceUris = new HashMap<>();
        namespaceUris.put("svg", "http://www.w3.org/2000/svg");
        namespaceUris.put("xhtml", "http://www.w3.org/1999/xhtml");

        XPath xp = DocumentHelper.createXPath("//svg:svg");
        xp.setNamespaceURIs(namespaceUris);
        // don't forget about the styles
        XPath stylexp = DocumentHelper.createXPath("//xhtml:style");
        stylexp.setNamespaceURIs(namespaceUris);

        svgdoc = DocumentHelper.createDocument();
        Element svg = null;
        List<?> theSVGElements = xp.selectNodes(doc);
        if (theSVGElements.size() == 1) {
            svg = Element.class.cast(theSVGElements.get(0)).createCopy();
        } else {
            int currentTop = 0;
            int biggestSize = 0;
            for (int i = 0; i < theSVGElements.size(); i++) {
                Element thisElement = Element.class.cast(theSVGElements.get(i)).createCopy();
                int thisSize = thisElement.asXML().length();
                if (thisSize > biggestSize) {
                    currentTop = i;
                    biggestSize = thisSize;
                }
            }
            svg = Element.class.cast(theSVGElements.get(currentTop)).createCopy();
        }

        svgdoc.setRootElement(svg);

        Element oldstyle = Element.class.cast(stylexp.selectSingleNode(doc));
        if (null != oldstyle) {
            Element defs = svg.addElement("defs");
            Element style = defs.addElement("style");
            style.addAttribute("type", "text/css");
            String styledata = oldstyle.getTextTrim();
            style.addCDATA(styledata);
            // put the stylesheet definitions first
            List l = svg.elements();
            l.remove(defs);
            l.add(0, defs);
        }

        // clean up the SVG a little...
        // d3 comes up with coords like
        // M360,27475.063247863247C450,27475.063247863247 450,27269.907692307694 540,27269.907692307694
        XPath cleanxp1 = DocumentHelper.createXPath("//svg:path");
        Pattern pat = Pattern.compile(",([0-9]+)\\.([0-9]{1,2})[0-9]+");
        cleanxp1.setNamespaceURIs(namespaceUris);
        List<?> cleanups = cleanxp1.selectNodes(svgdoc);
        for (Object n : cleanups) {
            Element e = Element.class.cast(n);
            String dstr = e.attributeValue("d");
            Matcher m = pat.matcher(dstr);
            dstr = m.replaceAll(",$1.$2 ");
            e.addAttribute("d", dstr.replaceAll("([0-9])C([0-9])", "$1 C$2").trim());
        }
        XPath cleanxp2 = DocumentHelper.createXPath("//svg:g[@class='node']");
        cleanxp2.setNamespaceURIs(namespaceUris);
        cleanups = cleanxp2.selectNodes(svgdoc);
        for (Object n : cleanups) {
            Element e = Element.class.cast(n);
            String dstr = e.attributeValue("transform");
            Matcher m = pat.matcher(dstr);
            dstr = m.replaceAll(",$1.$2");
            e.addAttribute("transform", dstr.trim());
        }

        svgfile = File.createTempFile("graphviz-", ".svg");
        try (Writer svgw = new BufferedWriter(new FileWriter(svgfile))) {
            OutputFormat format = OutputFormat.createPrettyPrint();
            XMLWriter xmlw = new XMLWriter(svgw, format);
            xmlw.write(svgdoc);
            xmlw.close();

            if (log.isDebugEnabled()) {
                FileUtils.copyFile(svgfile, new File(FileUtils.getTempDirectory(), "graphvisualization.svg"));
            }
        }

        try (Reader svgr = new BufferedReader(new FileReader(svgfile))) {
            TranscoderInput inputSvg = new TranscoderInput(svgr);

            ByteArrayOutputStream baos = new ByteArrayOutputStream((int) svgfile.length());
            TranscoderOutput outputPng = new TranscoderOutput(baos);

            try {
                PNGTranscoder transcoder = new PNGTranscoder();
                transcoder.addTranscodingHint(PNGTranscoder.KEY_INDEXED, 256);
                transcoder.addTranscodingHint(ImageTranscoder.KEY_BACKGROUND_COLOR, Color.WHITE);
                transcoder.transcode(inputSvg, outputPng);
            } catch (Throwable t) {
                log.error(t, t);
            }
            baos.flush();
            baos.close();

            return ImageIO.read(new ByteArrayInputStream(baos.toByteArray()));
        }
    } catch (InvalidXPathException e) {
        log.error(e);
        String msg = "Problem creating image";
        if (null != svgdoc) {
            try {
                File errsvg = new File(FileUtils.getTempDirectory(), "graphvisualization.svg");
                FileUtils.write(errsvg, svgdoc.asXML(), Charset.defaultCharset());
                msg = "Could not create the image. SVG data store here: " + errsvg.getAbsolutePath();
            } catch (IOException ex) {
                // don't care
            }
        }
        throw new IOException(msg, e);
    } finally {
        if (null != svgfile) {
            FileUtils.deleteQuietly(svgfile);
        }
    }
}

From source file:com.pureinfo.dolphinview.component.model.ViewComponent.java

License:Open Source License

private String getPathText(Element _elemant, String _sPath) {
    XPath elementPath = _elemant.createXPath(_sPath);
    Element element = (Element) elementPath.selectSingleNode(_elemant);
    if (element == null) {
        return "";
    }/*w w  w .j  a  v  a2  s  .c om*/
    return element.getText();
}

From source file:com.surenpi.autotest.suite.parser.XmlSuiteParser.java

License:Apache License

/**
 * ??//  w ww  . j av a  2 s .c  o  m
 * @param suiteInputStream ??
 * @return 
 * @throws DocumentException
 */
public Suite parse(InputStream suiteInputStream) throws DocumentException {
    SAXReader reader = new SAXReader();
    reader.setEncoding("utf-8");

    Document document = reader.read(suiteInputStream);

    simpleNamespaceContext.addNamespace("ns", NS_URI);

    XPath xpath = new DefaultXPath("/ns:suite");
    xpath.setNamespaceContext(simpleNamespaceContext);
    Element suiteEle = (Element) xpath.selectSingleNode(document);
    if (suiteEle == null) {
        suiteEle = document.getRootElement();
        //         throw new RuntimeException("Can not found suite config.");
    }

    Suite suite = new Suite();
    String xmlConfPath = suiteEle.attributeValue("pageConfig");
    String pagePackage = suiteEle.attributeValue("pagePackage", "");
    String rows = suiteEle.attributeValue("rows", "1");
    String lackLines = suiteEle.attributeValue("lackLines", "nearby");
    String errorLines = suiteEle.attributeValue("errorLines", "stop");
    String afterSleep = suiteEle.attributeValue("afterSleep", "0");

    suite.setXmlConfPath(xmlConfPath);
    suite.setPagePackage(pagePackage);
    suite.setRows(rows);
    suite.setLackLines(lackLines);
    suite.setErrorLines(errorLines);
    suite.setAfterSleep(Long.parseLong(afterSleep));

    pagesParse(document, suite);

    return suite;
}

From source file:com.surenpi.autotest.suite.parser.XmlSuiteParser.java

License:Apache License

/**
 * ?page?//from  w  w  w.  j  a v  a2 s . c om
 * @param document
 * @param suite
 */
private void pagesParse(Document document, Suite suite) {
    List<SuitePage> pageList = new ArrayList<SuitePage>();
    suite.setPageList(pageList);

    String pagePackage = suite.getPagePackage();
    if (!StringUtils.isBlank(pagePackage)) {
        pagePackage = (pagePackage.trim() + ".");
    }

    XPath xpath = new DefaultXPath("/ns:suite/ns:page");
    xpath.setNamespaceContext(simpleNamespaceContext);

    @SuppressWarnings("unchecked")
    List<Element> pageNodes = xpath.selectNodes(document);
    if (pageNodes == null || pageNodes.size() == 0) {
        throw new RuntimeException("Can not found page config.");
    }

    for (Element pageEle : pageNodes) {
        String pageCls = pageEle.attributeValue("class");

        xpath = new DefaultXPath("ns:actions");
        xpath.setNamespaceContext(simpleNamespaceContext);

        Element actionsEle = (Element) xpath.selectSingleNode(pageEle);
        if (actionsEle == null) {
            throw new RuntimeException("Can not found actions config.");
        }

        String disable = actionsEle.attributeValue("disable", "false");
        if (Boolean.parseBoolean(disable)) {
            continue;
        }

        String beforeSleep = actionsEle.attributeValue("beforeSleep", "0");
        String afterSleep = actionsEle.attributeValue("afterSleep", "0");
        String repeat = actionsEle.attributeValue("repeat", "1");

        List<SuiteAction> actionList = new ArrayList<SuiteAction>();

        SuitePage suitePage = new SuitePage(String.format("%s%s", pagePackage, pageCls));
        suitePage.setActionList(actionList);
        suitePage.setRepeat(Integer.parseInt(repeat));

        pageList.add(suitePage);

        parse(actionList, actionsEle, beforeSleep, afterSleep);
    }
}

From source file:com.ten45.service.aggregator.ConfigurationServiceImpl.java

/**
 * Expand the original configuration document with the referred node.
 * It reads the referred document, finds the referred element in the same 
 * path as the original document, and moves all the children of the 
 * referred element into the original element.
 * /*from   w w w. j a v a 2 s  . co  m*/
 * @param doc
 * @param node
 * @return
 * @throws DocumentException
 */
private Document expandReference(Document doc, Node node) throws DocumentException {
    // Find the 'anchor' element that contains the reference declaration.
    Element anchor = node.getParent();
    XPath anchorXPath = DocumentHelper.createXPath(anchor.getPath());

    // Remove the reference declaration node from the document.
    node.detach();

    // Read the new configuration.
    String resourceName = rootPath + node.getText() + ".xml";
    log.debug("Reading resource " + resourceName);
    InputStream in = this.getClass().getResourceAsStream(resourceName);
    SAXReader reader = new SAXReader();
    try {
        Document refDoc = reader.read(in);

        Element refElement = (Element) anchorXPath.selectSingleNode(refDoc);
        if (refElement != null) {
            log.debug("Expanding " + anchorXPath.getText() + " with " + refElement.asXML());
            // Move all elements from the referenced document into the anchor.
            List children = refElement.elements();
            if (children != null && children.size() > 0) {
                for (int i = 0; i < children.size(); i++) {
                    Element child = (Element) children.get(i);
                    XPath refXPath = DocumentHelper.createXPath(child.getPath());
                    if (refXPath.selectSingleNode(doc) == null) {
                        log.debug("Adding element " + refXPath.getText());
                        child.detach();
                        anchor.add(child);
                    } else {
                        log.debug("Ignore pre-existing element " + refXPath.getText());
                    }
                }
            }
        }
    } catch (DocumentException de) {
        throw de;
    }
    return doc;
}