@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// POST method only used for tracked login operation
HttpSession session = request.getSession();
response.setContentType("text/plain");
PrintWriter out = response.getWriter();
// Get the username and password from request
String username = request.getParameter("id");
String password = request.getParameter("pwd");
Long id = 0L;
try {
id = Long.parseLong(username);
} catch (Exception ex) {
}
if (username != null && password != null) {
// Login into tracked system
CTracked ctracked = db.loginTrackedFromMobile(id, password).getResult();
if (ctracked != null) {
// Login successful
out.print("OK," + ctracked.getUsername());
session.setAttribute("device_id", ctracked.getUsername());
log.info(ctracked + " : logined!");
}
}
}
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
HttpSession session = request.getSession();
// All request in GET method must be certificated
Object obj = session.getAttribute("device_id");
if (!(obj instanceof Long)) {
// Client must be login first, then use Mobile service
response.setStatus(404);
return;
}
response.setContentType("text/plain");
PrintWriter out = response.getWriter();
// Here is tracked's id
Long device_id = (Long) obj;
// Determine operation type
String op = request.getParameter("op");
if (op == null) op = "";
// Get current track
Long track_id = null;
obj = session.getAttribute("track_id");
if (obj instanceof Long) {
track_id = (Long) obj;
}
if (op.equals("logout")) {
// Client request a logout operation
session.removeAttribute("device_id");
session.removeAttribute("track_id");
out.print("OK," + device_id);
} else if (op.equals("latlng")) {
// Client insert update it's location in latitude/longitude
// If it's a first waypoint, create a new track
if (track_id == null) {
track_id = db.newTrack(device_id).getResult().getTrackID();
session.setAttribute("track_id", track_id);
}
// Parse latitude, longitude from request
double lat = Double.parseDouble(request.getParameter("lat"));
double lng = Double.parseDouble(request.getParameter("lng"));
long speed = -1L;
try {
// Try to get speed from request
speed = Long.parseLong(request.getParameter("spd"));
} catch (Exception ex) {
}
if (speed < 0) {
// Client don't send speed to server
try {
// Calculate speed manually
double lastLat = (Double) session.getAttribute("latitude");
double lastLng = (Double) session.getAttribute("longitude");
long time = (Long) session.getAttribute("time");
long distance = Utils.getDistance(lastLat, lastLng, lat, lng);
speed = distance * 1000 / Math.abs(time - System.currentTimeMillis());
} catch (Exception ex) {
speed = 0L;
}
}
// Insert new point into server
ServiceResult<CWaypoint> result = db.insertWaypoint(track_id, lat, lng, speed);
CWaypoint cwaypoint = result.getResult();
if (result.isOK()) {
// OK,latitude,longitude,speed(m/s),time,trackid
session.setAttribute("latitude", lat);
session.setAttribute("longitude", lng);
session.setAttribute("time", cwaypoint.getTime().getTime());
out.print(
"OK,"
+ cwaypoint.getLat()
+ ","
+ cwaypoint.getLng()
+ ","
+ cwaypoint.getSpeed()
+ ","
+ cwaypoint.getTime().getTime()
+ ","
+ cwaypoint.getTrackID());
}
} else if (op.equals("cellid")) {
// Client send it's location by cellular technique
if (track_id == null) {
track_id = db.newTrack(device_id).getResult().getTrackID();
session.setAttribute("track_id", track_id);
}
try {
int cell = Integer.parseInt(request.getParameter("cell"));
int lac = Integer.parseInt(request.getParameter("lac"));
Geocode geocode = Utils.getLocation(cell, lac);
out.println(geocode.getLatitude() + "," + geocode.getLongitude());
} catch (Exception ex) {
}
// TODO Implements cellular method to calculate location of a mobile
out.println("Not implement");
} else if (op.equals("newtrack")) {
// Client request to create a new track
track_id = db.newTrack(device_id).getResult().getTrackID();
session.setAttribute("track_id", track_id);
out.print("OK," + track_id);
} else if (op.equals("changepass")) {
String newpass = request.getParameter("newpass");
if (newpass != null) {
CTracked ctracked = new CTracked();
ctracked.setUsername(device_id);
ctracked.setPassword(newpass);
if (db.updateTracked(ctracked).isOK()) {
out.println("OK," + device_id);
}
}
} else if (op.equals("config")) {
CTracked ctracked = db.getTracked(device_id).getResult();
Integer interval = ctracked.getIntervalGps();
if (interval == null) interval = 10;
out.print("OK," + interval + ",");
byte[] b = ctracked.getSchedule();
if (b == null) {
for (int i = 0; i < 23; i++) {
out.print("1.");
}
out.println(1);
} else {
for (int i = 0; i < 23; i++) {
out.print(b[i] + ".");
}
out.println(b[23]);
}
} else if (op.equals("amilogin")) {
out.println("OK");
}
}