Example usage for org.w3c.dom Document getFirstChild

Introduction

In this page you can find the example usage for org.w3c.dom Document getFirstChild.

Prototype

public Node getFirstChild();

Source Link

Document

The first child of this node.

Usage

From source file:Main.java

public static String getAttribute(String xmlStr, String tagName, String attrName) {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(false); // never forget this!
    Document doc = null;
    DocumentBuilder builder = null;
    String value = null;/*from w w w.ja v  a2 s  . c o m*/

    try {
        builder = domFactory.newDocumentBuilder();
        doc = builder.parse(new ByteArrayInputStream(xmlStr.getBytes()));
        // Get the root element
        Node rootNode = doc.getFirstChild();
        NodeList nodeList = doc.getElementsByTagName(tagName);
        if ((nodeList.getLength() == 0) || (nodeList.item(0).getAttributes().getNamedItem(attrName) == null)) {
            logger.error("Either node " + tagName + " or attribute " + attrName + " not found.");
        } else {
            value = nodeList.item(0).getAttributes().getNamedItem(attrName).getNodeValue();
            logger.debug("value of " + tagName + " attribute: " + attrName + " = " + value);
        }
    } catch (Exception ex) {
        System.out.println(ex.getMessage());
    }

    return value;
}

From source file:edu.emory.library.tast.database.tabscommon.VisibleAttribute.java

private static void loadConfig() {
    try {/*www .  j av  a 2  s. c o m*/
        Document document = new XMLConfiguration("table-attributes.xml").getDocument();
        Node mainNode = document.getFirstChild();
        if (mainNode != null) {
            if (mainNode.getNodeType() == Node.ELEMENT_NODE) {
                NodeList attrs = mainNode.getChildNodes();
                for (int j = 0; j < attrs.getLength(); j++) {
                    if (attrs.item(j).getNodeType() == Node.ELEMENT_NODE) {
                        VisibleAttribute attr = VisibleAttribute.fromXML(attrs.item(j));
                        visibleAttributes.put(attr.getName(), attr);
                    }
                }
            }
        }
    } catch (ConfigurationException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

/**
 * Convert the given Document to an XML String.
 * <p>/*  ww w  .j av a2s  .c  o m*/
 * This method is a simplified version of...
 * <p>
 * <code>
 *    ByteArrayOutputStream out = new ByteArrayOutputStream();
 *    javax.xml.Transformer transformer = TransformerFactory.newInstance().newTransformer();
 *    transformer.transform( new DOMSource( node ), new StreamResult( out ));
 *    return out.toString();
 * </code>
 * <p>
 * ...but not all platforms (eg. Android) support <code>javax.xml.transform.Transformer</code>.
 */

public static String documentToString(Document document, boolean pretty) {

    // Nothing to do?

    if (document == null) {
        return "";
    }

    return nodeToString(document.getFirstChild(), pretty);
}

From source file:Main.java

public static String setAttribute(String xmlStr, String tagName, String attrName, String newValue) {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    domFactory.setNamespaceAware(false); // never forget this!
    int i, j;//from   w ww .  j  a  v a2s .c  o  m
    Document doc = null;
    DocumentBuilder builder = null;

    StringWriter stringOut = new StringWriter();
    try {
        builder = domFactory.newDocumentBuilder();
        doc = builder.parse(new ByteArrayInputStream(xmlStr.getBytes()));
        // Get the root element
        Node rootNode = doc.getFirstChild();
        NodeList nodeList = doc.getElementsByTagName(tagName);
        if ((nodeList.getLength() == 0) || (nodeList.item(0).getAttributes().getNamedItem(attrName) == null)) {
            logger.error("Either node " + tagName + " or attribute " + attrName + " not found.");
        } else {
            logger.debug("value of " + tagName + " attribute: " + attrName + " = "
                    + nodeList.item(0).getAttributes().getNamedItem(attrName).getNodeValue());
            nodeList.item(0).getAttributes().getNamedItem(attrName).setNodeValue(newValue);

            // write the content into xml file
            TransformerFactory transformerFactory = TransformerFactory.newInstance();
            Transformer transformer = transformerFactory.newTransformer();
            DOMSource source = new DOMSource(doc);
            StreamResult result = new StreamResult(stringOut);
            // StreamResult result = new StreamResult(new File(filepath));
            transformer.transform(source, result);
            logger.debug("Updated XML: \n" + stringOut.toString());
        }
    } catch (Exception ex) {
        System.out.println(ex.getMessage());
    }

    return stringOut.toString();
}

From source file:Main.java

/**
 * Adds a new node to a file./* ww  w .j  a  v  a2s  .co m*/
 *
 * @param nodeType {@link String} The type of the element to add.
 * @param idField {@link String} The name of the field used to identify this
 * node.
 * @param nodeID {@link String} The identifier for this node, so its data
 * can be later retrieved and modified.
 * @param destFile {@link File} The file where the node must be added.
 * @param attributes {@link ArrayList} of array of String. The arrays must
 * be bidimensional (first index must contain attribute name, second one
 * attribute value). Otherwise, an error will be thrown. However, if
 * <value>null</value>, it is ignored.
 */
public static void addNode(String nodeType, String idField, String nodeID, File destFile,
        ArrayList<String[]> attributes) {
    if (attributes != null) {
        for (Iterator<String[]> it = attributes.iterator(); it.hasNext();) {
            if (it.next().length != 2) {
                throw new IllegalArgumentException("Invalid attribute combination");
            }
        }
    }
    /*
     * XML DATA CREATION - BEGINNING
     */
    DocumentBuilder docBuilder;
    Document doc;
    try {
        docBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        doc = docBuilder.parse(destFile);
    } catch (SAXException | IOException | ParserConfigurationException ex) {
        return;
    }

    Node index = doc.getFirstChild(), newElement = doc.createElement(nodeType);
    NamedNodeMap elementAttributes = newElement.getAttributes();

    Attr attrID = doc.createAttribute(idField);
    attrID.setValue(nodeID);
    elementAttributes.setNamedItem(attrID);

    if (attributes != null) {
        for (Iterator<String[]> it = attributes.iterator(); it.hasNext();) {
            String[] x = it.next();
            Attr currAttr = doc.createAttribute(x[0]);
            currAttr.setValue(x[1]);
            elementAttributes.setNamedItem(currAttr);
        }
    }

    index.appendChild(newElement);
    /*
     * XML DATA CREATION - END
     */

    /*
     * XML DATA DUMP - BEGINNING
     */
    Transformer transformer;
    try {
        transformer = TransformerFactory.newInstance().newTransformer();
    } catch (TransformerConfigurationException ex) {
        return;
    }
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");

    StreamResult result = new StreamResult(new StringWriter());
    DOMSource source = new DOMSource(doc);
    try {
        transformer.transform(source, result);
    } catch (TransformerException ex) {
        return;
    }

    String xmlString = result.getWriter().toString();
    try (BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(destFile))) {
        bufferedWriter.write(xmlString);
    } catch (IOException ex) {
    }
    /*
     * XML DATA DUMP - END
     */
}

From source file:de.codesourcery.spring.contextrewrite.XMLRewrite.java

private static Rule wrap(InsertElementRule r) {
    return new Rule(r.xpath(), r.id()) {
        @Override/*from w ww  .jav a  2  s .com*/
        public void apply(Document document, Node matchedNode) throws Exception {
            final Document newDocument = parseXMLFragment(r.insert());
            final Node firstChild = newDocument.getFirstChild();
            final Node adoptedNode = document.importNode(firstChild, true);
            matchedNode.appendChild(adoptedNode);
        }

        @Override
        public String toString() {
            return "INSERT ELEMENT: " + r.xpath() + " with '" + r.insert();
        }
    };
}

From source file:de.codesourcery.spring.contextrewrite.XMLRewrite.java

private static Rule wrap(ReplaceRule r) {
    final String newValue;

    if (!ContextRewritingBootStrapper.NULL_STRING.equals(r.replacement())) {
        if (r.replacementClassName() != ReplaceRule.NULL_CLASS) {
            throw new RuntimeException("Either replacement or replacementClassName needs to be set");
        }/*from  ww w .  j a  va 2 s . c  o  m*/
        newValue = r.replacement();
    } else if (r.replacementClassName() != ReplaceRule.NULL_CLASS) {
        newValue = r.replacementClassName().getName();
    } else {
        throw new RuntimeException(
                "You need to provide EITHER 'replacement' OR 'replacementClassName' attributes");
    }
    return new Rule(r.xpath(), r.id()) {
        public void apply(Document document, Node matchedNode) throws Exception {
            switch (matchedNode.getNodeType()) {
            case Node.ATTRIBUTE_NODE:
                matchedNode.setNodeValue(newValue);
                break;
            case Node.ELEMENT_NODE:
                final Document replDocument = parseXMLFragment(newValue);
                final Node firstChild = replDocument.getFirstChild();
                final Node adoptedNode = document.importNode(firstChild, true);
                matchedNode.getParentNode().replaceChild(adoptedNode, matchedNode);
                break;
            default:
                throw new RuntimeException();
            }
        }

        @Override
        public String toString() {
            return "REPLACE: " + r.xpath() + " with '" + newValue;
        }
    };
}

From source file:net.sourceforge.eclipsetrader.charts.ChartsPlugin.java

public static Chart createDefaultChart() {
    Log logger = LogFactory.getLog(ChartsPlugin.class);
    SimpleDateFormat dateTimeFormat = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss"); //$NON-NLS-1$
    Chart chart = new Chart();

    File file = ChartsPlugin.getDefault().getStateLocation().append("defaultChart.xml").toFile(); //$NON-NLS-1$
    if (file.exists() == true) {
        try {// www . ja  va 2s  .  c  o  m
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document document = builder.parse(file);

            NodeList firstNode = document.getFirstChild().getChildNodes();
            for (int r = 0; r < firstNode.getLength(); r++) {
                Node item = firstNode.item(r);
                Node valueNode = item.getFirstChild();
                String nodeName = item.getNodeName();

                if (valueNode != null) {
                    if (nodeName.equalsIgnoreCase("compression") == true) //$NON-NLS-1$
                        chart.setCompression(Integer.parseInt(valueNode.getNodeValue()));
                    else if (nodeName.equalsIgnoreCase("period") == true) //$NON-NLS-1$
                        chart.setPeriod(Integer.parseInt(valueNode.getNodeValue()));
                    else if (nodeName.equalsIgnoreCase("autoScale") == true) //$NON-NLS-1$
                        chart.setAutoScale(new Boolean(valueNode.getNodeValue()).booleanValue());
                    else if (nodeName.equalsIgnoreCase("begin") == true) //$NON-NLS-1$
                    {
                        try {
                            chart.setBeginDate(dateTimeFormat.parse(valueNode.getNodeValue()));
                        } catch (Exception e) {
                            logger.warn(e.toString());
                        }
                    } else if (nodeName.equalsIgnoreCase("end") == true) //$NON-NLS-1$
                    {
                        try {
                            chart.setEndDate(dateTimeFormat.parse(valueNode.getNodeValue()));
                        } catch (Exception e) {
                            logger.warn(e.toString());
                        }
                    }
                }
                if (nodeName.equalsIgnoreCase("row")) //$NON-NLS-1$
                {
                    ChartRow row = new ChartRow(new Integer(r));
                    row.setParent(chart);

                    NodeList tabList = item.getChildNodes();
                    for (int t = 0; t < tabList.getLength(); t++) {
                        item = tabList.item(t);
                        nodeName = item.getNodeName();
                        if (nodeName.equalsIgnoreCase("tab")) //$NON-NLS-1$
                        {
                            ChartTab tab = new ChartTab(new Integer(t));
                            tab.setParent(row);
                            tab.setLabel(((Node) item).getAttributes().getNamedItem("label").getNodeValue()); //$NON-NLS-1$

                            NodeList indicatorList = item.getChildNodes();
                            for (int i = 0; i < indicatorList.getLength(); i++) {
                                item = indicatorList.item(i);
                                nodeName = item.getNodeName();
                                if (nodeName.equalsIgnoreCase("indicator")) //$NON-NLS-1$
                                {
                                    ChartIndicator indicator = new ChartIndicator(new Integer(i));
                                    indicator.setParent(tab);
                                    indicator.setPluginId(((Node) item).getAttributes().getNamedItem("pluginId") //$NON-NLS-1$
                                            .getNodeValue());

                                    NodeList parametersList = item.getChildNodes();
                                    for (int p = 0; p < parametersList.getLength(); p++) {
                                        item = parametersList.item(p);
                                        nodeName = item.getNodeName();
                                        if (nodeName.equalsIgnoreCase("param")) //$NON-NLS-1$
                                        {
                                            String key = ((Node) item).getAttributes().getNamedItem("key") //$NON-NLS-1$
                                                    .getNodeValue();
                                            String value = ((Node) item).getAttributes().getNamedItem("value") //$NON-NLS-1$
                                                    .getNodeValue();
                                            indicator.getParameters().put(key, value);
                                        }
                                    }

                                    tab.getIndicators().add(indicator);
                                } else if (nodeName.equalsIgnoreCase("object")) //$NON-NLS-1$
                                {
                                    ChartObject object = new ChartObject(new Integer(i));
                                    object.setParent(tab);
                                    object.setPluginId(((Node) item).getAttributes().getNamedItem("pluginId") //$NON-NLS-1$
                                            .getNodeValue());

                                    NodeList parametersList = item.getChildNodes();
                                    for (int p = 0; p < parametersList.getLength(); p++) {
                                        item = parametersList.item(p);
                                        nodeName = item.getNodeName();
                                        if (nodeName.equalsIgnoreCase("param")) //$NON-NLS-1$
                                        {
                                            String key = ((Node) item).getAttributes().getNamedItem("key") //$NON-NLS-1$
                                                    .getNodeValue();
                                            String value = ((Node) item).getAttributes().getNamedItem("value") //$NON-NLS-1$
                                                    .getNodeValue();
                                            object.getParameters().put(key, value);
                                        }
                                    }

                                    tab.getObjects().add(object);
                                }
                            }

                            row.getTabs().add(tab);
                        }
                    }

                    chart.getRows().add(row);
                }
            }
        } catch (Exception e) {
            logger.error(e.toString(), e);
        }
    }

    chart.clearChanged();

    return chart;
}

From source file:com.wandrell.example.swss.test.util.factory.SecureSoapMessages.java

private static final SOAPMessage toMessage(Document jdomDocument) throws IOException, SOAPException {
    SOAPMessage message = MessageFactory.newInstance().createMessage();
    SOAPPart sp = message.getSOAPPart();
    sp.setContent(new DOMSource(jdomDocument.getFirstChild()));

    return message;
}

From source file:com.bernardomg.example.swss.test.util.factory.SecureSoapMessages.java

private static final SOAPMessage toMessage(final Document jdomDocument) throws IOException, SOAPException {
    final SOAPMessage message = MessageFactory.newInstance().createMessage();
    final SOAPPart sp = message.getSOAPPart();
    sp.setContent(new DOMSource(jdomDocument.getFirstChild()));

    return message;
}