@Override
public void doPost(HttpServletRequest httpReq, HttpServletResponse httpRes)
throws ServletException, IOException {
String infoStr =
httpReq.getRemoteAddr() + " " + httpReq.getLocale() + " " + httpReq.getHeader("User-Agent");
String type = httpReq.getContentType();
GPXFile gpxFile;
if (type.contains("application/xml")) {
try {
gpxFile = parseXML(httpReq);
} catch (Exception ex) {
logger.warn("Cannot parse XML for " + httpReq.getQueryString() + ", " + infoStr);
httpRes.setStatus(SC_BAD_REQUEST);
httpRes.getWriter().append(errorsToXML(Collections.<Throwable>singletonList(ex)));
return;
}
} else {
throw new IllegalArgumentException("content type not supported " + type);
}
final String format = getParam(httpReq, "type", "json");
boolean writeGPX = GPX_FORMAT.equals(format);
boolean pointsEncoded = getBooleanParam(httpReq, "points_encoded", true);
boolean enableInstructions = writeGPX || getBooleanParam(httpReq, "instructions", true);
boolean enableElevation = getBooleanParam(httpReq, "elevation", false);
boolean forceRepair = getBooleanParam(httpReq, "force_repair", false);
// TODO export OSM IDs instead, use https://github.com/karussell/graphhopper-osm-id-mapping
boolean enableTraversalKeys = getBooleanParam(httpReq, "traversal_keys", false);
int maxNodesToVisit = (int) getLongParam(httpReq, "max_nodes_to_visit", 500);
int separatedSearchDistance = (int) getLongParam(httpReq, "separated_search_distance", 300);
String vehicle = getParam(httpReq, "vehicle", "car");
Locale locale = Helper.getLocale(getParam(httpReq, "locale", "en"));
GHResponse matchGHRsp = new GHResponse();
MatchResult matchRsp = null;
StopWatch sw = new StopWatch().start();
try {
FlagEncoder encoder = hopper.getEncodingManager().getEncoder(vehicle);
MapMatching matching =
new MapMatching(hopper.getGraphHopperStorage(), locationIndexMatch, encoder);
matching.setForceRepair(forceRepair);
matching.setMaxNodesToVisit(maxNodesToVisit);
matching.setSeparatedSearchDistance(separatedSearchDistance);
matchRsp = matching.doWork(gpxFile.getEntries());
// fill GHResponse for identical structure
Path path = matching.calcPath(matchRsp);
Translation tr = trMap.getWithFallBack(locale);
new PathMerger().doWork(matchGHRsp, Collections.singletonList(path), tr);
} catch (Exception ex) {
matchGHRsp.addError(ex);
}
logger.info(
httpReq.getQueryString()
+ ", "
+ infoStr
+ ", took:"
+ sw.stop().getSeconds()
+ ", entries:"
+ gpxFile.getEntries().size()
+ ", "
+ matchGHRsp.getDebugInfo());
if (EXTENDED_JSON_FORMAT.equals(format)) {
if (matchGHRsp.hasErrors()) {
httpRes.setStatus(SC_BAD_REQUEST);
httpRes.getWriter().append(new JSONArray(matchGHRsp.getErrors()).toString());
} else {
httpRes.getWriter().write(new MatchResultToJson(matchRsp).exportTo().toString());
}
} else if (GPX_FORMAT.equals(format)) {
String xml = createGPXString(httpReq, httpRes, matchGHRsp);
if (matchGHRsp.hasErrors()) {
httpRes.setStatus(SC_BAD_REQUEST);
httpRes.getWriter().append(xml);
} else {
writeResponse(httpRes, xml);
}
} else {
Map<String, Object> map =
routeSerializer.toJSON(
matchGHRsp, true, pointsEncoded, enableElevation, enableInstructions);
if (matchGHRsp.hasErrors()) {
writeJsonError(httpRes, SC_BAD_REQUEST, new JSONObject(map));
} else {
if (enableTraversalKeys) {
if (matchRsp == null) {
throw new IllegalStateException(
"match response has to be none-null if no error happened");
}
// encode edges as traversal keys which includes orientation
// decode simply by multiplying with 0.5
List<Integer> traversalKeylist = new ArrayList<Integer>();
for (EdgeMatch em : matchRsp.getEdgeMatches()) {
EdgeIteratorState edge = em.getEdgeState();
traversalKeylist.add(
GHUtility.createEdgeKey(
edge.getBaseNode(), edge.getAdjNode(), edge.getEdge(), false));
}
map.put("traversal_keys", traversalKeylist);
}
writeJson(httpReq, httpRes, new JSONObject(map));
}
}
}
private GPXFile parseXML(HttpServletRequest httpReq) throws IOException {
GPXFile file = new GPXFile();
return file.doImport(httpReq.getInputStream());
}