public override void ParseResults(XDocument xmlDoc, Exception error)
{
List <Stop> stops = new List <Stop>();;
bool limitExceeded = false;
if (xmlDoc == null || error != null)
{
callback(stops, limitExceeded, error);
}
else
{
try
{
IDictionary <string, Route> routesMap = ParseAllRoutes(xmlDoc);
stops.AddRange(from stop in xmlDoc.Descendants("stop")
select ParseStop(
stop,
(from routeId in stop.Element("routeIds").Descendants("string")
select routesMap[SafeGetValue(routeId)]).ToList <Route>()));
IEnumerable <XElement> descendants = xmlDoc.Descendants("data");
if (descendants.Count() != 0)
{
limitExceeded = bool.Parse(SafeGetValue(descendants.First().Element("limitExceeded")));
}
Debug.Assert(limitExceeded == false);
}
catch (WebserviceResponseException ex)
{
error = ex;
}
catch (Exception ex)
{
error = new WebserviceParsingException(requestUrl, xmlDoc.ToString(), ex);
}
}
Debug.Assert(error == null);
// Remove a page from the cache if we hit a parsing error. This way we won't keep
// invalid server data in the cache
if (error != null)
{
stopsCache.Invalidate(new Uri(requestUrl));
}
callback(stops, limitExceeded, error);
}
public void StopsForLocation(GeoCoordinate location, string query, int radiusInMeters, int maxCount, bool invalidateCache, StopsForLocation_Callback callback)
{
GeoCoordinate roundedLocation = GetRoundedLocation(location);
// ditto for the search radius -- nearest 50 meters for caching
int roundedRadius = (int)(Math.Round(radiusInMeters / 50.0) * 50);
string requestString = string.Format(
"{0}/{1}.xml?key={2}&lat={3}&lon={4}&radius={5}&Version={6}",
WebServiceUrlForLocation(location),
"stops-for-location",
KEY,
roundedLocation.Latitude.ToString(NumberFormatInfo.InvariantInfo),
roundedLocation.Longitude.ToString(NumberFormatInfo.InvariantInfo),
roundedRadius,
APIVERSION
);
if (string.IsNullOrEmpty(query) == false)
{
requestString += string.Format("&query={0}", query);
}
if (maxCount > 0)
{
requestString += string.Format("&maxCount={0}", maxCount);
}
Uri requestUri = new Uri(requestString);
if (invalidateCache)
{
stopsCache.Invalidate(requestUri);
}
stopsCache.DownloadStringAsync(requestUri, new GetStopsForLocationCompleted(requestString, stopsCache, callback).HttpCache_Completed);
}
public override void ParseResults(XDocument xmlDoc, Exception error)
{
List <RouteStops> routeStops = new List <RouteStops>();
if (xmlDoc == null || error != null)
{
callback(routeStops, error);
}
else
{
try
{
IDictionary <string, Route> routesMap = ParseAllRoutes(xmlDoc);
// parse all the stops, using previously parsed Route objects
IList <Stop> stops =
(from stop in xmlDoc.Descendants("stop")
select ParseStop(stop,
(from routeId in stop.Element("routeIds").Descendants("string")
select routesMap[SafeGetValue(routeId)]
).ToList <Route>()
)).ToList <Stop>();
IDictionary <string, Stop> stopsMap = new Dictionary <string, Stop>();
foreach (Stop s in stops)
{
stopsMap.Add(s.id, s);
}
// and put it all together
routeStops.AddRange
(from stopGroup in xmlDoc.Descendants("stopGroup")
where SafeGetValue(stopGroup.Element("name").Element("type")) == "destination"
select new RouteStops
{
name = SafeGetValue(stopGroup.Descendants("names").First().Element("string")),
encodedPolylines = (from poly in stopGroup.Descendants("encodedPolyline")
select new PolyLine
{
pointsString = SafeGetValue(poly.Element("points")),
length = SafeGetValue(poly.Element("length"))
}).ToList <PolyLine>(),
stops =
(from stopId in stopGroup.Descendants("stopIds").First().Descendants("string")
select stopsMap[SafeGetValue(stopId)]).ToList <Stop>(),
route = routesMap[routeId]
});
}
catch (WebserviceResponseException ex)
{
error = ex;
}
catch (Exception ex)
{
error = new WebserviceParsingException(requestUrl, xmlDoc.ToString(), ex);
}
}
Debug.Assert(error == null);
// Remove a page from the cache if we hit a parsing error. This way we won't keep
// invalid server data in the cache
if (error != null)
{
directionCache.Invalidate(new Uri(requestUrl));
}
callback(routeStops, error);
}
