10 |
import javax.servlet.http.HttpServletRequest; |
import javax.servlet.http.HttpServletRequest; |
11 |
import javax.servlet.http.HttpServletResponse; |
import javax.servlet.http.HttpServletResponse; |
12 |
|
|
13 |
|
import dk.thoerup.curcuitbreaker.CircuitBreakerException; |
14 |
|
|
15 |
/** |
/** |
16 |
* Servlet implementation class TimetableServlet |
* Servlet implementation class TimetableServlet |
17 |
*/ |
*/ |
23 |
|
|
24 |
TimetableFetcher fetcher = new TimetableFetcher(); |
TimetableFetcher fetcher = new TimetableFetcher(); |
25 |
|
|
26 |
|
@Override |
27 |
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { |
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { |
28 |
String train = request.getParameter("train").trim(); |
String train = request.getParameter("train").trim(); |
29 |
|
|
37 |
String trainID = sections[1]; |
String trainID = sections[1]; |
38 |
try |
try |
39 |
{ |
{ |
40 |
List<TimetableBean> timetable = fetcher.lookupTimetable(trainID, type); |
List<TimetableBean> timetable = fetcher.cachedLookupTimetable(trainID, type); |
41 |
|
|
42 |
String responseXML = formatTimetable(timetable); |
String responseXML = formatTimetable(timetable); |
43 |
|
|
46 |
} catch (java.net.SocketTimeoutException ste) { |
} catch (java.net.SocketTimeoutException ste) { |
47 |
logger.warning("(timetable) Read timed out, train="+train); |
logger.warning("(timetable) Read timed out, train="+train); |
48 |
response.sendError(500, "Backend timed out"); |
response.sendError(500, "Backend timed out"); |
49 |
} catch (Exception e) { |
} catch (CircuitBreakerException cbe) { |
50 |
|
logger.warning("Circuitbreaker - failing fast"); |
51 |
|
response.sendError(500); |
52 |
|
}catch (Throwable e) { |
53 |
logger.log(Level.WARNING, "failure looking up timetable: train=" +train, e); |
logger.log(Level.WARNING, "failure looking up timetable: train=" +train, e); |
54 |
response.sendError(500); |
response.sendError(500); |
55 |
} |
} |