Example usage for org.w3c.dom Node getFirstChild

Introduction

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

Prototype

public Node getFirstChild();

Source Link

Document

The first child of this node.

Usage

From source file:Main.java

/**
 * Searches the node for content of type Long. If non-long content is found,
 * it logs a warning and returns null./*www. jav  a 2 s .  c  om*/
 */
public static String extractStringFromElement(Node element) {
    if (element == null) {
        return null;
    } else if (element.getFirstChild() == null) {
        return null;
    } else if (element.getFirstChild().getNodeValue() == null) {
        return null;
    } else {
        // Get all the children
        NodeList children = element.getChildNodes();
        StringBuffer output = new StringBuffer();
        for (int n = 0; n < children.getLength(); n++) {
            Node child = children.item(n);
            if (child.getNodeType() == Node.ENTITY_REFERENCE_NODE) {
                output.append(child.getFirstChild().getNodeValue());
            } else if (child.getNodeType() == Node.CDATA_SECTION_NODE) {
                output.append(child.getFirstChild().getNodeValue());
            } else if (child.getNodeType() == Node.ENTITY_NODE) {
                output.append(child.getFirstChild().getNodeValue());
            } else if (child.getNodeType() == Node.TEXT_NODE) {
                output.append(child.getNodeValue());
            }
        }
        return output.toString().trim();
    }
}

From source file:NodeUtils.java

/**
 * Returns a first child DOM Node of type ELEMENT_NODE
 * for the specified Node.//from  w w  w .  j a  va2 s  .  c  o m
 */
public static Node getChildElementNode(Node xmlNode) {
    if (xmlNode == null || !xmlNode.hasChildNodes()) {
        return null;
    }

    xmlNode = xmlNode.getFirstChild();
    while (xmlNode != null && xmlNode.getNodeType() != Node.ELEMENT_NODE) {
        xmlNode = xmlNode.getNextSibling();
    }

    return xmlNode;
}

From source file:Main.java

private static String getValueByTagName(Node n, String tag) {
    if (n == null)
        return null;
    if (tag.equals(n.getLocalName()))
        return n.getFirstChild().getNodeValue();
    if (n.hasChildNodes())
        return getValueByTagName(n.getFirstChild(), tag);
    else if (n.getNextSibling() != null)
        return getValueByTagName(n.getNextSibling(), tag);
    else// w  w w.j a  v a 2 s.  c  o  m
        return getValueByTagName(n.getParentNode().getNextSibling(), tag);
}

From source file:Main.java

public static String text(Node node) {
    StringBuffer sb = new StringBuffer();
    Node n = node.getFirstChild();
    while (n != null) {
        if (n.getNodeType() == Node.TEXT_NODE || n.getNodeType() == Node.CDATA_SECTION_NODE)
            sb.append(n.getNodeValue());
        n = n.getNextSibling();/*from  www.  j av  a  2  s.c  o  m*/
    }
    return sb.toString();
}

From source file:Main.java

/**
 * Get the Value of a node that has an embedded text node as a child
 * @param doc the Document to search for the node name
 * @param nodeName the name of the node to get the value
 * @return the value of the text node child
 *//* w  w  w .  jav a  2 s  .  com*/
public static String getNodeTextValue(Document doc, String nodeName) {
    String value = null;
    NodeList nodes = doc.getElementsByTagName(nodeName);
    if (nodes.getLength() > 0) {
        Node node = nodes.item(0);
        if (node.hasChildNodes()) {
            Node text = node.getFirstChild();
            value = text.getNodeValue();
        }
    }
    return replaceSpecialCharacters(value);
}

From source file:Main.java

/** Goes through and adds newlines and indent to the current node and all its children
 * @param current the current node/*  w  w w.ja  v a2s  . c  o m*/
 * @param indent the current level of indent this is increased recursively*/
private static void addFormatting(Document doc, Node current, String indent) {

    // go through each of the children adding space as required
    Node child = current.getFirstChild();
    String childIndent = indent + "\t";
    while (child != null) {
        Node nextChild = child.getNextSibling();
        if (child.getNodeType() != Node.TEXT_NODE) {
            // Only if we aren't a text node do we add the space
            current.insertBefore(doc.createTextNode("\n" + childIndent), child);
            if (child.hasChildNodes()) {
                addFormatting(doc, child, childIndent);
            }
            if (nextChild == null) {
                // Because this is the last child, we need to add some space after it
                current.appendChild(doc.createTextNode("\n" + indent));
            }
        }
        child = nextChild;
    }
}

From source file:Main.java

public static boolean hasChildNS(Node parent, String ns, String name) {
    if (parent == null)
        return false;
    for (Node c = parent.getFirstChild(); c != null; c = c.getNextSibling()) {
        if (isA(c, ns, name))
            return true;
    }//ww  w .  ja va2s. c o m
    return false;
}

From source file:Main.java

/**
 * Get the value of a node assuming there is one child node with a text value
 * //from   w ww.ja v  a2s .  c o  m
 * @param node
 * @return the value
 */
public static String getNodeTextValue(Node node) {
    String value = null;
    if (node.hasChildNodes()) {
        Node text = node.getFirstChild();
        value = text.getNodeValue();
    }
    return replaceSpecialCharacters(value);
}

From source file:Main.java

public static boolean hasDescendantNS(Node parent, String ns, String name) {
    if (parent == null)
        return false;
    for (Node c = parent.getFirstChild(); c != null; c = c.getNextSibling()) {
        if (isA(c, ns, name))
            return true;
        if (hasDescendantNS(c, ns, name))
            return true;
    }//from  w ww.j  av a2 s  .  c  om
    return false;
}

From source file:Main.java

/**
 * @param sibling/*from  ww w .ja  v  a2 s .  co m*/
 * @param uri
 * @param nodeName
 * @param number
 * @return nodes with the constrain
 */
public static Text selectNodeText(Node sibling, String uri, String nodeName, int number) {
    Node n = selectNode(sibling, uri, nodeName, number);
    if (n == null) {
        return null;
    }
    n = n.getFirstChild();
    while (n != null && n.getNodeType() != Node.TEXT_NODE) {
        n = n.getNextSibling();
    }
    return (Text) n;
}