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

public static List<Element> getElementCollectionByTagName(Element element, String tagName) {
    List<Element> result = new LinkedList<Element>();
    NodeList nodeList = element.getElementsByTagName(tagName);
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node node = nodeList.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            result.add((Element) node);
        }/*ww  w .  j  a v  a 2 s  . c o m*/
    }
    return result;
}

From source file:Main.java

/**
 * Gets the immediately child elements list from the parent element.
 * //from  w  ww  .j a  va2 s .  co  m
 * @param parent the parent element in the element tree
 * @param tagName the specified tag name
 * @return the NOT NULL immediately child elements list
 */
public static List<Element> getChildElements(Element parent, String tagName) {
    NodeList nodes = parent.getElementsByTagName(tagName);
    List<Element> elements = new ArrayList<Element>();

    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node instanceof Element && node.getParentNode() == parent) {
            elements.add((Element) node);
        }
    }

    return elements;
}

From source file:Main.java

/**
 * Helper function for quickly retrieving an boolean value of a given
 * XML element./*w w w  . j a va 2  s  .com*/
 * @param ele The document element from which to pull the boolean value.
 * @param tagName The name of the node.
 * @return The boolean value of the given node in the element passed in.
 */
public static boolean getBooleanValue(Element ele, String tagName) {

    boolean boolVal = false;
    NodeList nl = ele.getElementsByTagName(tagName);

    if (nl != null && nl.getLength() > 0) {
        Element el = (Element) nl.item(0);
        boolVal = el.getFirstChild().getNodeValue().equals("true");
    }

    return boolVal;
}

From source file:Main.java

public static Element getSingleOptionalChildElement(Element parent, Enum<?> child) {
    final String elName = getXmlName(child);
    final NodeList list = parent.getElementsByTagName(elName);
    if (list.getLength() == 1) {
        return (Element) list.item(0);
    }//from w ww  .j  a v a  2  s . co m
    if (list.getLength() == 0) {
        return null;
    }
    throw new IllegalArgumentException("expected a single " + elName + " child element of XML element "
            + parent.getNodeName() + ", but found " + list.getLength());
}

From source file:Main.java

public static String getStringFromParagraphElement(Element element) {

    StringBuffer value = new StringBuffer();

    NodeList nl = element.getElementsByTagName("p");

    for (int i = 0; i < nl.getLength(); i++) {

        NodeList children = nl.item(i).getChildNodes();
        for (int c = 0; c < children.getLength(); c++) {
            if (children.item(c) instanceof Text) {
                value.append(((Text) children.item(c)).getData());
            }/*from w ww . j  a va2 s  .  c  om*/
        }
        if (i != nl.getLength() - 1) {
            value.append("\n");
        }
    }

    return value.toString();
}

From source file:Main.java

public static String getElementValue(Element element, String tagName, Integer n) {
    NodeList elementLst = element.getElementsByTagName(tagName);
    if (elementLst.item(n) != null) {
        NodeList elementData = ((Element) elementLst.item(n)).getChildNodes();
        if (elementData.item(0) != null) {
            return ((Node) elementData.item(0)).getNodeValue();
        }/*from  w  ww .  j  a va2  s  .c  om*/
    }
    return "";
}

From source file:Main.java

static public String getNodeValue(Element parent, String nodeName) {
    NodeList nodes = parent.getElementsByTagName(nodeName);
    if (nodes.getLength() == 0)
        return null;
    Element curElem = (Element) nodes.item(0);
    Node textNode = curElem.getFirstChild();
    if (textNode != null) {
        String encVal = curElem.getAttribute("enc");
        String charSetVal = curElem.getAttribute("charSet");
        String returnVal = textNode.getNodeValue();
        if (encVal != null && encVal.equals("t")) {
            if (charSetVal == null)
                return (URLDecoder.decode(returnVal));
            else/*  ww w  .  j a  v a 2s .  co m*/
                try {
                    return (URLDecoder.decode(returnVal, charSetVal));
                } catch (UnsupportedEncodingException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
        }
        return (returnVal);
    } else
        return ("");
}

From source file:Main.java

/**
 * Gets the descendant elements list from the parent element.
 * /*from ww w  . j av a 2  s .  c  o  m*/
 * @param parent the parent element in the element tree
 * @param tagName the specified tag name
 * @return the NOT NULL descendant elements list
 */
public static List<Element> getElements(Element parent, String tagName) {
    NodeList nodes = parent.getElementsByTagName(tagName);
    List<Element> elements = new ArrayList<Element>();

    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node instanceof Element) {
            elements.add((Element) node);
        }
    }

    return elements;
}

From source file:Main.java

public static Element getElementByTagNameAndAttributeValue(Element element, String tagName, String attrName,
        String attrValue) {/*from ww w. ja v  a2s  . c  o m*/
    NodeList nodeList = element.getElementsByTagName(tagName);
    if (nodeList.getLength() == 0) {
        return null;
    }
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node node = nodeList.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            Element nodeElement = (Element) node;
            if (attrValue.equals(getAttributeValueByName(nodeElement, attrName))) {
                return nodeElement;
            }
        }
    }
    return null;
}

From source file:Main.java

private static String getTextValue(String def, Element doc, String tag) {
    String value = def;//from   w w  w  .j a  v  a  2s.  c o m
    NodeList noteList = doc.getElementsByTagName(tag);
    if (noteList.getLength() > 0) {
        for (int i = 0; i < noteList.getLength(); i++) {
            Node note = noteList.item(i);

            Element noteElement = (Element) note;
            if (noteElement.getNodeType() == Node.ELEMENT_NODE) {
                if (noteElement.getElementsByTagName("pitch").getLength() > 0) {
                    Element pitchElement = (Element) noteElement.getElementsByTagName("pitch").item(0);
                    System.out.println("Staff idX : "
                            + pitchElement.getElementsByTagName("step").item(0).getTextContent());
                } else {
                    System.out.println("yoktir");
                }
                //               System.out.println("First Name : " + eElement.getElementsByTagName("firstname").item(0).getTextContent());
                //               System.out.println("Last Name : " + eElement.getElementsByTagName("lastname").item(0).getTextContent());                 
            } else {
                System.out.println("not element");
            }
        }

        //          value = nl.item(0).getFirstChild().getNodeValue();
    }
    return value;
}