HtmlNodeVisitor.java

package br.com.metricminer2.parser.html;

import java.lang.reflect.Method;

import org.jsoup.nodes.Node;
import org.jsoup.select.NodeVisitor;

public class HtmlNodeVisitor implements NodeVisitor {
	@Override
	public void head(Node node, int depth) {
		visitNodeByClass(node);
	}
	@Override
	public void tail(Node node, int depth) {
				
	}
	
	private void visitNodeByClass(Node node) {
		Method visitorMethod = findVisitorMethodForNodeClass(node);
		if (visitorMethod != null && visitorMethod.getReturnType().equals(void.class)) {
			try {
				visitorMethod.invoke(this, node);
			} catch (Exception e) {
				throw new RuntimeException(e);
			}
		}
	}
	
	private Method findVisitorMethodForNodeClass(Node node) {
		try {
			return this.getClass().getMethod("visit", node.getClass());
		} catch (NoSuchMethodException e) {
			return null;
		}
	}
}