waiterson.java

请求排队系统1.1,一个简单的将请求队列后依次执行

package create;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import waitline.TaskHost;
import waitline.Token;

public class WaiterSon extends TaskHost {

	public void processTask(Token token) {
		// TODO Auto-generated method stub

	}

	public Object createTask(HttpServletRequest request,
			HttpServletResponse response) {
		// TODO Auto-generated method stub
		String obj = request.getParameter("test");
		if (obj == null)
			obj = new String("NULL");
		return obj;
	}

	public void processWhenFinish(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		response.sendRedirect("ok.jsp");
	}

	public void processWhenProcessing(HttpServletRequest request,
			HttpServletResponse response, int waiting_num, int total_num)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setAttribute("totalnum", new Integer(total_num));
		request.setAttribute("waitnum", new Integer(waiting_num));
		request.getRequestDispatcher("waiting.jsp").forward(request, response);
	}

	public void log(PrintWriter pw, Token token) {
		// TODO Auto-generated method stub
		String str = token.getSessionid() + "   "
				+ token.getTaskObject().toString() + "  "
				+ "getEnteredtime: " + token.getEnteredtime() + "  "
				+ "getFinishedtime:" + token.getFinishedtime() + "  ";
		pw.println(str);
	}
}