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 void loadAttributesFromNode(Node node, Properties attrs) {
    attrs.clear();/*from  w  w w .java 2 s .c om*/
    Element elem = (Element) node;
    NodeList list = elem.getElementsByTagName(TAG_ATTR);
    for (int i = 0; i < list.getLength(); i++) {
        String text = getTextTag(list.item(i));
        String[] s = text.split("=");
        if (s.length >= 2) {
            attrs.setProperty(s[0], s[1]);
        }
    }
}

From source file:Main.java

private static List<Element> getDirectChildren(Element element, String tagName) {
    NodeList nList = element.getElementsByTagName(tagName);
    List<Element> list = new ArrayList<Element>();
    int listLength = nList.getLength();
    for (int i = 0; i < listLength; i++) {
        Element listElement = (Element) nList.item(i);
        if (listElement.getParentNode() == element) {
            list.add(listElement);/*from  w w w. j a  v  a 2  s.  c o m*/
        }
    }
    return list;
}

From source file:Main.java

/**
 * Return the first child element with a given name.  
 * @param parent parent element/*from   ww w. ja  va 2s .c  o m*/
 * @param name child element name
 * @return 
 */
public static Element getFirstChildByName(Element parent, String name) {
    NodeList children = parent.getElementsByTagName(name);
    if (children.getLength() == 0) {
        return null;
    }
    return (Element) children.item(0);
}

From source file:Main.java

/**
 * Gets the descendant elements list from the parent element.
 *
 * @param parent/*  w  w  w. j av a2s .  c  o m*/
 *          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<>();

    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 String readStringElement(Element parentElement, String name, int index) {
    Element element = (Element) parentElement.getElementsByTagName(name).item(index);
    String text = element.getTextContent();
    if (text == "null") {
        text = null;/* w w w . j a  va  2 s .c om*/
    }
    return text;
}

From source file:Main.java

public static String getAttribute(Element elem, String attr, String def) {
    NodeList nlist = elem.getElementsByTagName("attribute");
    String value = null;/*w ww . ja v  a 2 s  .co  m*/

    for (int i = 0; i < nlist.getLength(); i++) {
        Element node = (Element) nlist.item(i);
        if (attr.equals(node.getAttribute("name"))) {
            value = node.getTextContent();
            break;
        }
    }

    if (value == null) {
        value = def;
    }
    return value;
}

From source file:Main.java

public static String getSubNodeValue(Element element, String name) {
    NodeList nodeList = element.getElementsByTagName(name);
    return getNodeValue(nodeList.item(0)).trim();
}

From source file:Main.java

public static String getTextValue(Element ele, String tagName) {
    String textVal = null;//from   w  ww .  j a va2s .  co  m
    NodeList nl = ele.getElementsByTagName(tagName);
    if (nl != null && nl.getLength() > 0) {
        Element el = (Element) nl.item(0);
        textVal = el.getFirstChild().getNodeValue();
    }
    return textVal;
}

From source file:Main.java

public static String getTagValue(String tag, Element elem) {
    String retVal = "";
    NodeList fstNmElmntLst = elem.getElementsByTagName(tag);
    Element fstNmElmnt = (Element) fstNmElmntLst.item(0);
    if (fstNmElmnt == null)
        return "";
    NodeList fstNm = fstNmElmnt.getChildNodes();
    if (fstNm == null || fstNm.item(0) == null)
        return "";
    retVal = fstNm.item(0).getNodeValue();
    return retVal;
}

From source file:Main.java

/**
 * Get the attribute value of a given attribute name for
 * the first XML {@code org.w3c.dom.Element} of given name.
 *
 * @param elem the parent XML Element//from  w  w  w.  j a v  a 2s.  co  m
 * @param name the name of the child text Element
 * @param attrName the attribute name
 * @return attribute value of named child Element
 */
public static String getFirstAttribute(Element elem, String name, String attrName) {
    NodeList nodeList = elem.getElementsByTagName(name);
    if (nodeList.getLength() == 0) {
        return null;
    }

    return (((Element) nodeList.item(0)).getAttribute(attrName));
}