Example usage for org.w3c.dom Text isElementContentWhitespace

Introduction

In this page you can find the example usage for org.w3c.dom Text isElementContentWhitespace.

Prototype

public boolean isElementContentWhitespace();

Source Link

Document

Returns whether this text node contains <a href='http://www.w3.org/TR/2004/REC-xml-infoset-20040204#infoitem.character'> element content whitespace</a>, often abusively called "ignorable whitespace".

Usage

From source file:Main.java

/**
 * Get the content of the first Text child element of the passed element.
 *
 * @param aStartNode//  ww  w  .j a va 2  s. c  o m
 *        the element to scan for a TextNode child
 * @return <code>null</code> if the element contains no text node as child
 */
@Nullable
public static String getFirstChildText(@Nullable final Node aStartNode) {
    if (aStartNode != null) {
        final NodeList aNodeList = aStartNode.getChildNodes();
        final int nLen = aNodeList.getLength();
        for (int i = 0; i < nLen; ++i) {
            final Node aNode = aNodeList.item(i);
            if (aNode instanceof Text) {
                final Text aText = (Text) aNode;

                // ignore whitespace-only content
                if (!aText.isElementContentWhitespace())
                    return aText.getData();
            }
        }
    }
    return null;
}

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From source file:Main.java

/**
 * get the  text string in an element (eg interspersed between child elements), 
 * or "" if there is none or if the Element is null.
 * Tries to ignore white space text; but does not succeed.
 *//*from  ww  w  .  java 2  s.  c o m*/
public static String getText(Element el) {
    String res = "";
    if (el != null)
        try {
            el.normalize(); // does not help recognise white space
            NodeList nodes = el.getChildNodes();
            for (int i = 0; i < nodes.getLength(); i++)
                if (nodes.item(i) instanceof Text) {
                    Text text = (Text) nodes.item(i);
                    // this filter seems to make no difference
                    if (!text.isElementContentWhitespace()) {
                        String tData = text.getData();
                        // this seems to be an effective way to catch pure white space
                        StringTokenizer nonWhiteSpace = new StringTokenizer(tData, "\n \t");
                        if (nonWhiteSpace.countTokens() > 0)
                            res = res + tData;
                    }
                }
        } catch (Exception e) {
            System.out.println("Text failure: " + e.getMessage());
        }
    return res;
}

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