prod/net/jaekl/frank/Schedule.java

   1 package net.jaekl.frank;
   2
   3 import java.io.PrintWriter;
   4 import java.text.DateFormat;
   5 import java.text.MessageFormat;
   6 import java.text.SimpleDateFormat;
   7 import java.util.Date;
   8 import java.util.Locale;
   9
  10 import net.jaekl.frank.octranspo.Route;
  11 import net.jaekl.frank.octranspo.StopInfo;
  12 import net.jaekl.frank.octranspo.Trip;
  13
  14 public class Schedule {
  15         Locale m_locale;
  16         FrankBundle m_bundle;
  17         DateFormat m_hourMinFmt;
  18         DateFormat m_hourMinSecFmt;
  19
  20         public Schedule(Locale locale) {
  21                 m_locale = locale;
  22                 m_bundle = FrankBundle.getInst(locale);
  23                 m_hourMinFmt = new SimpleDateFormat("hh:mma", locale);
  24                 m_hourMinSecFmt = new SimpleDateFormat("hh:mm:ssa", locale);
  25         }
  26
  27         String trans(String key) {
  28                 return m_bundle.get(key);
  29         }
  30
  31         String mapUrl(double latitude, double longitude) {
  32                 return "http://www.openstreetmap.org/?mlat=" + latitude + "&mlon=" + longitude + "&zoom=15";
  33         }
  34
  35         void writeStyle(PrintWriter pw) {
  36                 pw.println("<STYLE>");
  37                 pw.println("  body {background-color: #F0F0C0; font-size: 1.5em; }");
  38                 pw.println("  #trips {border-collapse: collapse; font-size: 1.5em; }");
  39                 pw.println("  #trips td, #trips th {border: 1px solid #600000; padding: 3px 3px 3px 3px; text-align: center;}");
  40                 pw.println("  #trips th {background-color: #800000; color: #FFFFFF; }");
  41                 pw.println("  #trips tr.ghost td {background-color: #C0C0C0;}");
  42                 pw.println("</STYLE>");
  43         }
  44
  45         // Countdown timer that updates time remaining until each bus is expected.
  46         void writeScript(PrintWriter pw, String remainArray, int remainCount) {
  47                 String min = trans(FrankBundle.MINUTES);
  48                 String sec = trans(FrankBundle.SECONDS);
  49
  50                 pw.println("<SCRIPT>");
  51             pw.println("var start; var interval; var remain;");
  52             pw.println("window.onload = function() { start = new Date(); interval = setInterval(\"Tick()\", 1000); remain = " + remainArray + "; }");
  53             pw.println("function Tick() { ");
  54             pw.println("  var now = new Date(); var delta = Math.floor((now.getTime() - start.getTime()) / 1000); ");
  55             pw.println("  var secs = delta % 60; var mins = Math.floor(delta / 60);");
  56             pw.println("  document.getElementById(\"elapsed\").innerHTML = mins + \"" + min + " \" + secs + \"" + sec + "\";");
  57             pw.println("  for (var i = 0; i < " + remainCount + "; ++i) {");
  58             pw.println("    var id = \"in_\" + i;");
  59             pw.println("    var element = document.getElementById(id);");
  60             pw.println("    var remain_delta = (remain[i] * 60) + 30 - delta;");
  61             pw.println("    if (remain_delta <= 0) {");
  62             pw.println("      element.innerHTML = \"----\";");
  63             pw.println("    } else {");
  64             pw.println("      element.innerHTML = (Math.floor(remain_delta / 60)) + \"" + trans(min) + "\";");
  65             pw.println("    }");
  66             pw.println("  }");
  67             pw.println("}");
  68             pw.println("</SCRIPT>");
  69
  70         }
  71
  72         void writeHeader(PrintWriter pw, String title) {
  73                 pw.println("<HTML>");
  74                 pw.println("<HEAD>");
  75                 pw.println("<TITLE>" + title + "</TITLE>");
  76                 writeStyle(pw);
  77                 pw.println("</HEAD>");
  78         }
  79
  80         void writePage(PrintWriter pw, StopInfo stopInfo)
  81         {
  82                 StringBuilder remainArray = new StringBuilder("[ ");
  83                 int           remainCount = 0;
  84
  85                 String title = stopInfo.getDescr() + " (" + stopInfo.getStopNo() + ")";
  86                 String min = trans(FrankBundle.MINUTES);
  87
  88                 writeHeader(pw, trans(FrankBundle.FRANK) + ": " + title);
  89
  90                 pw.println("<BODY>");
  91                 pw.println("  <TABLE ID=\"trips\">");
  92                 pw.println("    <TR><TH COLSPAN=\"5\">" + title + "</TH></TR>");
  93                 pw.println("    <TR><TH>" +
  94                         trans(FrankBundle.ROUTE) +
  95                                 "</TH><TH>" +
  96                                 trans(FrankBundle.DESTINATION) +
  97                                 "</TH><TH>" +
  98                                 trans(FrankBundle.ETA) +
  99                                 "</TH><TH>" +
 100                                 trans(FrankBundle.REMAIN) +
 101                                 "</TH><TH>" +
 102                                 trans(FrankBundle.GPS_READ) +
 103                                 "</TH>");
 104
 105                 for (int routeIdx = 0; routeIdx < stopInfo.getNumRoutes(); ++routeIdx) {
 106                         Route route = stopInfo.getRoute(routeIdx);
 107                         for (int tripIdx = 0; tripIdx < route.getNumTrips(); ++tripIdx) {
 108                                 Trip trip = route.getTrip(tripIdx);
 109                                 boolean isGhost = ((-1) == trip.getAdjAge());
 110                                 if (isGhost) {
 111                                         // GPS is off.  This bus may not exist.
 112                                         pw.println("    <TR CLASS=\"ghost\">");
 113                                 } else {
 114                                         pw.println("    <TR>");
 115                                 }
 116                                 pw.println("      <TD>" + route.getRouteNo() + "</TD>");
 117                                 pw.println("      <TD>" + trip.getDest() + "</TD>");
 118                                 pw.println("      <TD>" + m_hourMinFmt.format(trip.getETA()) + "</TD>");
 119
 120                                 pw.println("      <TD><SPAN ID=\"in_" + remainCount + "\">"+ trip.getAdjTime()+min+"</SPAN></TD>");
 121                                 if (remainCount > 0) {
 122                                         remainArray.append(", ");
 123                                 }
 124                                 remainArray.append(trip.getAdjTime());
 125                                 remainCount++;
 126
 127                                 if (trip.getAdjAge() < 0) {
 128                                         pw.println("      <TD>" + trans(FrankBundle.GPS_OFF) + "</TD>");
 129                                 }
 130                                 else {
 131                                         pw.println("      <TD><A HREF=\"" + mapUrl(trip.getLatitude(), trip.getLongitude()) +
 132                                                            "\">" + m_hourMinSecFmt.format(trip.getGPSTime()) + "</A></TD>");
 133                                 }
 134                                 pw.println("    </TR>");
 135                         }
 136                 }
 137
 138                 pw.println("  </TABLE>");
 139
 140                 String dataCollectedFormat = trans(FrankBundle.DATA_COLLECTED);
 141                 String dataCollected = MessageFormat.format(dataCollectedFormat, m_hourMinSecFmt.format(new Date()));
 142                 pw.println("  <P>" + dataCollected + "</P>");
 143
 144                 remainArray.append(" ]");
 145                 writeScript(pw, remainArray.toString(), remainCount);
 146                 pw.println("</BODY></HTML>");
 147         }
 148 }