Mega Code Archive
Extract the textual content from a Node
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import org.w3c.dom.CharacterData;
import org.w3c.dom.Comment;
import org.w3c.dom.EntityReference;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* Various utilities to make up for the fact that DOM isn't as useful as it
* could be.
* @author Joe Walker [joe at getahead dot ltd dot uk]
*/
public class DomUtil
{
/**
* Extract the textual content from a Node.
* This is rather like the XPath value of a Node.
* @param node The node to extract the text from
* @return The textual value of the node
*/
public static String getText(Node node)
{
StringBuffer reply = new StringBuffer();
NodeList children = node.getChildNodes();
for (int i = 0; i < children.getLength(); i++)
{
Node child = children.item(i);
if ((child instanceof CharacterData && !(child instanceof Comment)) || child instanceof EntityReference)
{
reply.append(child.getNodeValue());
}
else if (child.getNodeType() == Node.ELEMENT_NODE)
{
reply.append(getText(child));
}
}
return reply.toString();
}
}
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