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package dk.thoerup.traininfoservice; |
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import java.io.IOException; |
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import java.sql.Connection; |
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import java.sql.ResultSet; |
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import java.sql.SQLException; |
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import java.sql.Statement; |
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import java.util.ArrayList; |
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import java.util.List; |
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import javax.servlet.ServletException; |
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import javax.servlet.annotation.WebServlet; |
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import javax.servlet.http.HttpServlet; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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import dk.thoerup.traininfoservice.db.DBConnection; |
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@WebServlet(urlPatterns={"/SavedStatistics"}) |
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public class SavedStatistics extends HttpServlet { |
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private static final long serialVersionUID = 1L; |
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protected SavedStatBean convertRow(ResultSet res) throws SQLException { |
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SavedStatBean bean = new SavedStatBean(); |
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bean.label = res.getString(1); |
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bean.station = res.getString(2); |
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bean.location = res.getString(3); |
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bean.name = res.getString(4); |
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bean.favorites = res.getString(5); |
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bean.departure = res.getString(6); |
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bean.depcache = res.getString(7); |
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bean.deperror = res.getString(8); |
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bean.timetable = res.getString(9); |
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bean.timecache = res.getString(10); |
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bean.timeerror = res.getString(11); |
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return bean; |
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} |
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List<SavedStatBean> convertResultset(ResultSet res) throws SQLException{ |
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List<SavedStatBean> stats = new ArrayList<SavedStatBean>(); |
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while (res.next()) { |
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SavedStatBean bean = convertRow(res); |
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stats.add(bean); |
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} |
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return stats; |
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} |
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { |
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Connection conn = null; |
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try { |
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conn = DBConnection.getConnection(); |
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Statement stmt = conn.createStatement(); |
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String sqlAvg = "SELECT count(*) AS count, round(avg(location+name+favorites),1) AS station, round(avg(location),1) as location, round(avg(name),1) as name, round(avg(favorites),1) as favorites, " + |
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"round(avg(departure),1) as departure, round(avg(depcache),1) as depcache, round(avg(deperror),1) as deperror, " + |
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"round(avg(timetable),1) as timetable, round(avg(timecache),1) as timecache, round(avg(timeerror),1) as timeerror " + |
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"FROM trainstatistics " + |
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"WHERE statisticsdate <> now()::date "; |
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ResultSet resAvg = stmt.executeQuery(sqlAvg); |
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resAvg.next(); |
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SavedStatBean avgBean = convertRow(resAvg); |
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//////////////////////////////////////////////// |
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String SQL = "SELECT statisticsdate, location+name+favorites AS station, location,name,favorites,departure,depcache,deperror,timetable,timecache,timeerror " + |
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"FROM trainstatistics ORDER BY statisticsdate DESC limit 14"; |
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ResultSet res = stmt.executeQuery(SQL); |
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List<SavedStatBean> stats = convertResultset(res); |
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////////////////////////////////////////////// |
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SQL = "select statisticsdate,location+name+favorites AS station,location,name,favorites,departure,depcache,deperror,timetable,timecache,timeerror from trainstatistics order by departure - deperror desc limit 5"; |
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res = stmt.executeQuery(SQL); |
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List<SavedStatBean> top5 = convertResultset(res); |
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conn.close(); |
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request.setAttribute("avg", avgBean); |
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request.setAttribute("stats", stats); |
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request.setAttribute("top5", top5); |
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request.getRequestDispatcher("/savedstatistics.jsp").forward(request, response); |
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} catch (SQLException e) { |
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try { |
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if (conn != null) conn.close(); |
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} catch (SQLException se) {} |
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throw new ServletException(e); |
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} |
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} |
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} |