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import nu.xom.*;
import java.io.IOException;
public class StreamingElementLister extends NodeFactory{
private int depth = 0;
private Nodes empty = new Nodes();
public static void main(String[] args) {
if (args.length == 0) {
System.out.println(
"Usage: java nu.xom.samples.StreamingElementLister URL"
);
return;
}
Builder builder = new Builder(new StreamingElementLister());
try {
builder.build(args[0]);
}
catch (ParsingException ex) {
System.out.println(args[0] + " is not well-formed.");
System.out.println(ex.getMessage());
}
catch (IOException ex) {
System.out.println(ex);
}
}
// We don't need the comments.
public Nodes makeComment(String data) {
return empty;
}
// We don't need text nodes at all
public Nodes makeText(String data) {
return empty;
}
public Element startMakingElement(String name, String namespace) {
depth++;
printSpaces();
System.out.println(name);
return new Element(name, namespace);
}
public Nodes finishMakingElement(Element element) {
depth--;
if (element.getParent() instanceof Document) {
return new Nodes(element);
}
else return empty;
}
public Nodes makeAttribute(String name, String URI,
String value, Attribute.Type type) {
return empty;
}
public Nodes makeDocType(String rootElementName,
String publicID, String systemID) {
return empty;
}
public Nodes makeProcessingInstruction(
String target, String data) {
return empty;
}
private void printSpaces() {
for (int i = 0; i <= depth; i++) {
System.out.print(' ');
}
}
}
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