wamblee.org Git - utils/blob - crawler/kissweb/src/org/wamblee/crawler/kiss/servlet/CrawlerServlet.java

   1 /*
   2  * Copyright 2006 the original author or authors.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.wamblee.crawler.kiss.servlet;
  18
  19 import java.io.IOException;
  20 import java.util.Date;
  21
  22 import javax.servlet.ServletException;
  23 import javax.servlet.http.HttpServlet;
  24 import javax.servlet.http.HttpServletRequest;
  25 import javax.servlet.http.HttpServletResponse;
  26
  27 import org.wamblee.crawler.kiss.scheduling.CrawlerSchedule;
  28 import org.wamblee.crawler.kiss.scheduling.CrawlerScheduler;
  29 import org.wamblee.general.BeanKernel;
  30
  31 /**
  32  *
  33  */
  34 public class CrawlerServlet extends HttpServlet {
  35
  36     /*
  37      * (non-Javadoc)
  38      *
  39      * @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest,
  40      *      javax.servlet.http.HttpServletResponse)
  41      */
  42     @Override
  43     protected void doPost(HttpServletRequest aRequest,
  44             HttpServletResponse aResponse) throws ServletException, IOException {
  45
  46         CrawlerScheduler scheduler = BeanKernel.getBeanFactory().find(
  47                 CrawlerScheduler.class);
  48         CrawlerSchedule status = BeanKernel.getBeanFactory().find(
  49                 CrawlerSchedule.class);
  50
  51         try {
  52             if ( aRequest.getParameter("runnow") != null ) {
  53                 status.setLastExecuted(new Date(System.currentTimeMillis() - 24*3600*1000));
  54                 scheduler.scheduleNow();
  55                 aResponse.sendRedirect("");
  56                 return;
  57             }
  58             aRequest.setAttribute("running", scheduler.isCrawlerRunning());
  59             aRequest.setAttribute("lastExecuted", status.getLastExecuted());
  60             aRequest.setAttribute("lastResult", status.getLastResult());
  61             aRequest.setAttribute("lastException", status.getLastException());
  62             String msg = "";
  63             Throwable e = status.getLastException();
  64             while ( e != null ) {
  65                 msg = msg + e.getMessage() + "<br/>";
  66                 e = e.getCause();
  67             }
  68             aRequest.setAttribute("lastMessage", msg);
  69         } catch (Exception e) {
  70             throw new ServletException("Error getting status", e);
  71         }
  72         aRequest.getRequestDispatcher("WEB-INF/overview.jsp").forward(aRequest,
  73                 aResponse);
  74     }
  75
  76     /*
  77      * (non-Javadoc)
  78      *
  79      * @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest,
  80      *      javax.servlet.http.HttpServletResponse)
  81      */
  82     @Override
  83     protected void doGet(HttpServletRequest aRequest,
  84             HttpServletResponse aResponse) throws ServletException, IOException {
  85         doPost(aRequest, aResponse);
  86     }
  87 }