Java XML Child Element Create getChildElementByChain(Element element, String[] chain, boolean create)

License

Parameter

Declaration

public static Element getChildElementByChain(Element element, String[] chain, boolean create) 

Method Source Code

//package com.java2s;
/* ====================================================================
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 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
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import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    /**
     * Returns the element which is at the end of the specified
     * chain  <parent><child><grandchild>...
     * @param element
     * @param chain
     * @return
     */
    public static Element getChildElementByChain(Element element, String[] chain, boolean create) {
        if (chain == null)
            return null;
        Element e = element;
        for (int i = 0; i < chain.length; i++) {
            if (e == null)
                return null;
            e = getChildElementByTagName(e, chain[i]);
        }
        return e;
    }

    /**
     * Returns the child element with the specified tagName for the specified parent element
     * @param parent
     * @param tagName
     * @return
     */
    public static Element getChildElementByTagName(Element parent, String tagName) {
        if (parent == null || tagName == null)
            return null;

        NodeList nodes = parent.getChildNodes();
        Node node;
        int len = nodes.getLength();
        for (int i = 0; i < len; i++) {
            node = nodes.item(i);
            if (node.getNodeType() == Node.ELEMENT_NODE && ((Element) node).getNodeName().equals(tagName))
                return (Element) node;
        }

        return null;
    }
}

Related

1. createChildElement(Element parentElement, String elementName)
2. createChildElement(Element parentElement, String strTagName)
3. createChildElement(final String tagName, final Node parent, final Document document)
4. createChildElement(String tagName, Element parentElement)
5. createTextChild(Node elem, String elemName, Boolean text)
6. getOrCreateChildNode(IIOMetadataNode parentNode, String name)
7. getOrCreateFirstTextChild(Element node)
8. hasActivityChildNodeWithCreateInstanceSet(Node node)