Example usage for org.w3c.dom Element getElementsByTagName

Introduction

In this page you can find the example usage for org.w3c.dom Element getElementsByTagName.

Prototype

public NodeList getElementsByTagName(String name);

Source Link

Document

Returns a NodeList of all descendant Elements with a given tag name, in document order.

Usage

From source file:Main.java

/**
 * @param parent the parent XML element/*  w w w  .jav a 2s.c  om*/
 * @param childName the child node name
 * @return the list of child XML elements with specified node name
 */
public static List<Element> getChildElements(final Element parent, final String childName) {

    if (parent != null) {

        List<Element> result = new ArrayList<Element>();
        NodeList nodes = parent.getElementsByTagName(childName);
        for (int i = 0, count = nodes.getLength(); i < count; i++) {
            result.add((Element) nodes.item(i));
        }
        return result;
    } else {
        return null;
    }
}

---

From source file:Main.java

public static Iterator getElementsByTagName(Element element, String tag) {
    ArrayList<Element> children = new ArrayList<Element>();
    if (element != null && tag != null) {
        NodeList nodes = element.getElementsByTagName(tag);
        for (int i = 0; i < nodes.getLength(); i++) {
            Node child = nodes.item(i);
            children.add((Element) child);
        }/* w  w  w  .  j  av  a 2s. c o m*/
    }
    return children.iterator();
}

---

From source file:Main.java

public static String getTextNodeValueByChildTagName(Element ele, String tagname) {
    String s = "";
    try {/*from  w w  w .j  a va2 s . c o  m*/
        NodeList nodes = ele.getElementsByTagName(tagname);
        if (nodes.getLength() > 0) {
            Node node = getTextNode(nodes.item(0));
            if (node != null) {
                s = node.getNodeValue();
            }
        }
    } catch (Exception e) {
        s = "";
    }

    return s;
}

---

From source file:Main.java

public static List<String> getNodeValues(String response, String tagName)
        throws ParserConfigurationException, SAXException {
    try {/*from ww w.  jav a2  s  .c om*/
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document document = builder.parse(new ByteArrayInputStream(response.getBytes()));

        Element rootElement = document.getDocumentElement();

        List<String> arrayList = new ArrayList<>();
        NodeList list = rootElement.getElementsByTagName(tagName);
        NodeList subList;
        if (list != null && list.getLength() > 0) {
            for (int k = 0; k < list.getLength(); k++) {
                subList = list.item(k).getChildNodes();
                if (subList != null && subList.getLength() > 0) {
                    arrayList.add(subList.item(0).getNodeValue());
                }
            }
            return arrayList;
        }
    } catch (Exception e) {
        return null;
    }
    return null;
}

---

From source file:Main.java

public static Map<String, String> getConfigs(InputStream is)
        throws IOException, SAXException, ParserConfigurationException {
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();

    Document dt = db.parse(is);//from w  ww.j av a2s  . c o  m
    Element element = dt.getDocumentElement();
    Map<String, String> config = new TreeMap<String, String>();

    NodeList propertyList = element.getElementsByTagName("property");
    int length = propertyList.getLength();
    for (int i = 0; i < length; i++) {
        Node property = propertyList.item(i);
        String key = property.getChildNodes().item(0).getTextContent();
        String value = property.getChildNodes().item(1).getTextContent();
        config.put(key, value);
    }
    return config;
}

---

From source file:Main.java

/**
  Given a person element, must get the element specified
  by the tagName, then must traverse that Node to get the
  value.//from   ww w . jav a  2s  .  c o m
  Step1) get Element of name tagName from e
  Step2) cast element to Node and then traverse it for its
       non-whitespace, cr/lf value.
  Step3) return it!
        
  NOTE: Element is a subclass of Node
        
  @param    e   an Element
  @param    tagName a tag name
  @return   s   the value of a Node
 */
public static String getValue(Element e, String tagName) {
    try {
        //get node lists of a tag name from a Element
        NodeList elements = e.getElementsByTagName(tagName);

        Node node = elements.item(0);
        NodeList nodes = node.getChildNodes();

        //find a value whose value is non-whitespace
        String s;
        for (int i = 0; i < nodes.getLength(); i++) {
            s = ((Node) nodes.item(i)).getNodeValue().trim();
            if (s.equals("") || s.equals("\r")) {
                continue;
            } else
                return s;
        }

    } catch (Exception ex) {
        System.out.println(ex);
        ex.printStackTrace();
    }

    return null;

}

---

From source file:Main.java

/**
 * find the unique element, returns null if not found or if there is more than one
 *
 * @param tagName - tag name/*from  w w  w. j av a2s  .c  o m*/
 * @param root    - where to start looking
 * @return the element
 */
public static Element findElement(final String tagName, final Element root) {
    if (root.getTagName().equals(tagName)) {
        return root;
    }
    final NodeList nl = root.getElementsByTagName(tagName);
    if (nl != null && nl.getLength() == 1) {
        return (Element) nl.item(0);
    }
    return null;
}

---

From source file:Main.java

/**
 * Create a child of the given node at the given index.
 * // w w w  . ja  v  a2s  .co m
 * @param doc
 *            a document
 * @param element
 *            an element
 * @param index
 *            an index
 * @param nodeName
 *            a node name
 * @return org.w3c.dom.Element
 */
public static Element createChildElement(Document doc, Element element, int index, String nodeName) {
    Element element2 = doc.createElement(nodeName);
    try {
        NodeList childList = element.getElementsByTagName(nodeName);
        Node child = childList.item(index);
        element.insertBefore(element2, child);
    } catch (Exception e) {
        element.appendChild(element2);
    }
    return element2;
}

---

From source file:com.wso2telco.workflow.utils.WorkflowProperties.java

public static Map<String, String> loadWorkflowPropertiesFromXML() {
    if (propertiesMap == null) {
        try {//from   www.j a v  a 2 s . c  o m
            propertiesMap = new HashMap<String, String>();

            DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();

            String carbonHome = System.getProperty("carbon.home");
            String workflowPropertiesFile = carbonHome + "/repository/conf/"
                    + Constants.WORKFLOW_PROPERTIES_XML_FILE;

            Document document = builder.parse(new File(workflowPropertiesFile));
            Element rootElement = document.getDocumentElement();

            NodeList nodeList = rootElement.getElementsByTagName("Property");
            if (nodeList != null && nodeList.getLength() > 0) {
                for (int i = 0; i < nodeList.getLength(); i++) {
                    Node node = nodeList.item(i);
                    String nodeName = node.getAttributes().getNamedItem("name").getNodeValue();
                    if (nodeName.equalsIgnoreCase(Constants.SERVICE_HOST)
                            || nodeName.equalsIgnoreCase(Constants.KEY_WORKFLOW_EMAIL_NOTIFICATION_HOST)
                            || nodeName.equalsIgnoreCase(Constants.KEY_WORKFLOW_EMAIL_NOTIFICATION_FROM_ADDRESS)
                            || nodeName
                                    .equalsIgnoreCase(Constants.KEY_WORKFLOW_EMAIL_NOTIFICATION_FROM_PASSWORD)
                            || nodeName.equalsIgnoreCase(Constants.PUBLISHER_ROLE_START_WITH)
                            || nodeName.equalsIgnoreCase(Constants.PUBLISHER_ROLE_END_WITH)
                            || nodeName.equalsIgnoreCase(Constants.MANDATE_SERVICE_HOST)) {
                        String value = ((Element) node).getTextContent();
                        propertiesMap.put(nodeName, value);
                    } else {
                        //Not a matching property
                    }
                }
            }
        } catch (Exception e) {
            String errorMessage = "Error in WorkflowProperties.loadWorkflowPropertiesFromXML";
            log.error(errorMessage, e);
        }
    } else {
        //Return already loaded propertiesMap
    }
    return propertiesMap;
}

---

From source file:Main.java

public static List<Element> getElementsByTagName(Element parent, String name, boolean localOnly) {
    List<Element> ret = new ArrayList<Element>();
    if (!localOnly) {
        NodeList elementList = parent.getElementsByTagName(name);
        for (int i = 0; i < elementList.getLength(); i++) {
            ret.add((Element) elementList.item(i));
        }//from w  w w. j  a va 2  s .  c  o  m
    } else {
        NodeList childList = parent.getChildNodes();
        for (int i = 0; i < childList.getLength(); i++) {
            if (childList.item(i).getNodeType() != Node.ELEMENT_NODE)
                continue;
            Element child = (Element) childList.item(i);
            if (child.getTagName().equals(name))
                ret.add(child);
        }
    }
    return ret;
}

---

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