Example usage for org.w3c.dom Node hasChildNodes

Introduction

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

Prototype

public boolean hasChildNodes();

Source Link

Document

Returns whether this node has any children.

Usage

From source file:tufts.vue.ds.XMLIngest.java

private static void scanNode(final XmlSchema schema, final org.w3c.dom.Node node, final int type,
        final String parentPath, final String parentName, final String nodeName, final String value) {
    final boolean isAttribute = (type == Node.ATTRIBUTE_NODE);
    final boolean isMergedText = FOLD_TEXT && isText(type);
    final boolean hasAttributes = (!isAttribute && node != null && node.hasAttributes());
    Node firstChild = null, lastChild = null;

    if (node != null) {
        firstChild = node.getFirstChild();
        lastChild = node.getLastChild();
    }// w  ww.j a  v a2 s. co  m

    final String XMLName;

    if (isAttribute)
        XMLName = parentName + ATTR_SEPARATOR + nodeName;
    else
        XMLName = nodeName;

    final String fullName;

    if (parentPath != null) { // should only be null first time in at the top root
        if (isMergedText)
            fullName = parentPath;
        else if (isAttribute)
            fullName = parentPath + ATTR_SEPARATOR + nodeName;
        else
            fullName = parentPath + '.' + nodeName;
    } else {
        fullName = nodeName;
    }

    if (type == Node.ELEMENT_NODE)
        schema.trackNodeOpen(fullName);

    if (depth < REPORT_THRESH) {
        if (depth < REPORT_THRESH - 1) {
            if (type == Node.TEXT_NODE)
                eoutln(String.format("node(%s) {%s} (len=%d)", getNodeType(type), fullName, value.length()));
            else
                eoutln(String.format("NODE(%s) {%s} %.192s", getNodeType(type), fullName, node,
                        Util.tags(firstChild)));
        }
        //eoutln("NODE: " + type + " name=" + name + " " + Util.tags(n) + " firstChild=" + Util.tags(firstChild));
        //System.err.println(name);
        else if (XML_DEBUG)
            System.err.print(".");
    }

    if (hasAttributes && ATTRIBUTES_IMMEDIATE)
        scanAttributes(schema, fullName, nodeName, node.getAttributes());

    String outputValue = null;

    if (value != null) {
        outputValue = value.trim();
        if (outputValue.length() > 0) {
            schema.trackFieldValuePair(fullName, outputValue);
        } else
            outputValue = null;
    }

    final NodeList children = node == null ? null : node.getChildNodes();
    final boolean DO_TAG;

    if (isMergedText) {
        DO_TAG = false;
    } else if (outputValue == null && node != null) {
        if (!node.hasChildNodes()) {
            DO_TAG = false;
        } else if (children.getLength() == 1 && isText(firstChild)
                && firstChild.getNodeValue().trim().length() == 0) {
            DO_TAG = false;
        } else
            DO_TAG = true;

        // if (!DO_TAG) ioutln("<!-- empty: " + nodeName + " -->");
    } else
        DO_TAG = true;

    boolean closeOnSameLine = false;

    if (DO_TAG) {

        iout("<");
        out(XMLName);
        //if (node.hasChildNodes()) out(" children=" + node.getChildNodes().getLength() + " first=" + node.getFirstChild());
        out(">");

        if (firstChild == null || (isText(firstChild) && firstChild == lastChild)) {
            //                 if (firstChild != null && firstChild.getNodeType() == Node.CDATA_SECTION_NODE)
            //                     ;
            //                 else
            closeOnSameLine = true;
        } else if (XML_OUTPUT)
            System.out.print('\n');

        if (FOLD_TEXT && (type != Node.ELEMENT_NODE && type != Node.ATTRIBUTE_NODE)) {
            final String err = "UNHANDLED TYPE=" + type + "; " + nodeName;
            outln("<" + err + ">");
            errout(err);
        }
    }

    if (outputValue != null) {
        if (type == Node.CDATA_SECTION_NODE) {
            out("<![CDATA[");
            out(outputValue);
            out("]]>");
        } else {
            out(XMLEntityEncode(outputValue));
        }
    }

    if (!isAttribute && node != null) {

        // god knows why, but attributes have themselves as children?  (or is that
        // the #text entry?)  Anyway, if we allow this for an attribute dump, the
        // value of the attribute will literally appear twice in the output,
        // back-to-back as one string.

        depth++;

        if (FOLD_KEYS || schema.isXMLKeyFold()) {

            scanFoldedChildren(schema, children, fullName, nodeName);

        } else {

            for (int i = 0; i < children.getLength(); i++)
                scanNode(schema, children.item(i), fullName, nodeName);
        }

        depth--;

    }

    if (DO_TAG) {

        if (closeOnSameLine)
            outln("</" + XMLName + ">");
        else
            ioutln("</" + XMLName + ">");
    }

    if (type == Node.ELEMENT_NODE)
        schema.trackNodeClose(fullName);

    if (hasAttributes && !ATTRIBUTES_IMMEDIATE)
        scanAttributes(schema, fullName, nodeName, node.getAttributes());

    //iout("children: " + Util.tags(n.getChildNodes()));
}