package test;

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;
import java.util.Enumeration;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;

import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.Executions;
import org.zkoss.zk.ui.select.SelectorComposer;
import org.zkoss.zk.ui.select.annotation.Listen;

public class TestComposerTwo extends SelectorComposer<Component> {

	private static final long serialVersionUID = 765259054622104041L;

	@SuppressWarnings("unchecked")
	@Listen(" onClick=#btn")
	public void testSerialize () {
		ServletContext sc = (ServletContext)((HttpServletRequest)Executions.getCurrent().getNativeRequest()).getSession().getServletContext();
		Enumeration<String> en = sc.getAttributeNames();
		while (en.hasMoreElements()) {
			Object obj = sc.getAttribute(en.nextElement());
			try {
				new ObjectOutputStream(new ByteArrayOutputStream()).writeObject(obj);
				System.out.println("Can be serialized: " + obj.getClass());
			} catch (Exception e) {
				System.err.println("Can not be serialized: " + obj.getClass());
			}
		}
	}
}