/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.aries.samples.ariestrader.web.prims;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.aries.samples.ariestrader.util.*;
/**
*
* PingServlet extends PingServlet by using a PrintWriter for formatted
* output vs. the output stream used by {@link PingServlet}.
*
*/
public class PingServletWriter extends HttpServlet {
private static String initTime;
private static int hitCount;
/**
* forwards post requests to the doGet method
* Creation date: (11/6/2000 10:52:39 AM)
* @param res javax.servlet.http.HttpServletRequest
* @param res2 javax.servlet.http.HttpServletResponse
*/
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
doGet(req, res);
}
/**
* this is the main method of the servlet that will service all get requests.
* @param request HttpServletRequest
* @param responce HttpServletResponce
**/
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
try
{
res.setContentType("text/html");
// The following 2 lines are the difference between PingServlet and PingServletWriter
// the latter uses a PrintWriter for output versus a binary output stream.
//ServletOutputStream out = res.getOutputStream();
java.io.PrintWriter out = res.getWriter();
hitCount++;
out.println(
"<html><head><title>Ping Servlet Writer</title></head>"
+ "<body><HR><BR><FONT size=\"+2\" color=\"#000066\">Ping Servlet Writer:<BR></FONT><FONT size=\"+1\" color=\"#000066\">Init time : "
+ initTime
+ "<BR><BR></FONT> <B>Hit Count: "
+ hitCount
+ "</B></body></html>");
}
catch (Exception e)
{
Log.error(e, "PingServletWriter.doGet(...): general exception caught");
res.sendError(500, e.toString());
}
}
/**
* returns a string of information about the servlet
* @return info String: contains info about the servlet
**/
public String getServletInfo()
{
return "Basic dynamic HTML generation through a servlet using a PrintWriter";
}
/**
* called when the class is loaded to initialize the servlet
* @param config ServletConfig:
**/
public void init(ServletConfig config) throws ServletException {
super.init(config);
hitCount = 0;
initTime = new java.util.Date().toString();
}
}