@Override
public GHResponse route(GHRequest request) {
try {
String places = "";
for (GHPoint p : request.getPoints()) {
places += "point=" + p.lat + "," + p.lon + "&";
}
boolean tmpInstructions = request.getHints().getBool("instructions", instructions);
boolean tmpCalcPoints = request.getHints().getBool("calc_points", calcPoints);
if (tmpInstructions && !tmpCalcPoints)
throw new IllegalStateException(
"Cannot calculate instructions without points (only points without instructions). "
+ "Use calc_points=false and instructions=false to disable point and instruction calculation");
boolean tmpElevation = request.getHints().getBool("elevation", elevation);
String url =
routeServiceUrl
+ "?"
+ places
+ "&type=json"
+ "&instructions="
+ tmpInstructions
+ "&points_encoded=true"
+ "&calc_points="
+ tmpCalcPoints
+ "&algorithm="
+ request.getAlgorithm()
+ "&locale="
+ request.getLocale().toString()
+ "&elevation="
+ tmpElevation;
if (!request.getVehicle().isEmpty()) url += "&vehicle=" + request.getVehicle();
if (!key.isEmpty()) url += "&key=" + key;
for (Entry<String, String> entry : request.getHints().toMap().entrySet()) {
String urlKey = entry.getKey();
String urlValue = entry.getValue();
// use lower case conversion for check only!
if (ignoreSet.contains(urlKey.toLowerCase())) continue;
if (urlValue != null && !urlValue.isEmpty())
url += "&" + WebHelper.encodeURL(urlKey) + "=" + WebHelper.encodeURL(urlValue);
}
String str = downloader.downloadAsString(url, true);
JSONObject json = new JSONObject(str);
GHResponse res = new GHResponse();
res.addErrors(readErrors(json));
if (res.hasErrors()) return res;
JSONArray paths = json.getJSONArray("paths");
for (int index = 0; index < paths.length(); index++) {
JSONObject path = paths.getJSONObject(index);
PathWrapper altRsp = createPathWrapper(path, tmpCalcPoints, tmpInstructions, tmpElevation);
res.add(altRsp);
}
return res;
} catch (Exception ex) {
throw new RuntimeException(
"Problem while fetching path " + request.getPoints() + ": " + ex.getMessage(), ex);
}
}
@Override
public double getEle(double lat, double lon) {
lat = (int) (lat * precision) / precision;
lon = (int) (lon * precision) / precision;
int intKey = calcIntKey(lat, lon);
HeightTile demProvider = cacheData.get(intKey);
if (demProvider == null) {
if (!cacheDir.exists()) cacheDir.mkdirs();
String fileDetails = getFileString(lat, lon);
if (fileDetails == null) return 0;
int minLat = down(lat);
int minLon = down(lon);
demProvider = new HeightTile(minLat, minLon, WIDTH, precision);
cacheData.put(intKey, demProvider);
try {
String zippedURL = baseUrl + "/" + fileDetails + "hgt.zip";
File file = new File(cacheDir, new File(zippedURL).getName());
InputStream is;
// get zip file if not already in cacheDir - unzip later and in-memory only!
if (!file.exists()) {
for (int i = 0; i < 2; i++) {
try {
downloader.downloadFile(zippedURL, file.getAbsolutePath());
break;
} catch (FileNotFoundException ex) {
// now try with point if mirror is used
zippedURL = baseUrl + "/" + fileDetails + ".hgt.zip";
continue;
}
}
}
is = new FileInputStream(file);
ZipInputStream zis = new ZipInputStream(is);
zis.getNextEntry();
BufferedInputStream buff = new BufferedInputStream(zis);
byte[] bytes = new byte[2 * WIDTH * WIDTH];
DataAccess heights = getDirectory().find("dem" + intKey);
heights.create(bytes.length);
demProvider.setHeights(heights);
int len;
while ((len = buff.read(bytes)) > 0) {
for (int bytePos = 0; bytePos < len; bytePos += 2) {
short val = BIT_UTIL.toShort(bytes, bytePos);
if (val < -1000 || val > 10000) {
// TODO fill unassigned gaps with neighbor values -> flood fill algorithm !
// -> calculate mean with an associated weight of how long the distance to the
// neighbor is
// throw new IllegalStateException("Invalid height value "
// + val
// + ", y:" + bytePos / WIDTH + ", x:" + (WIDTH -
// bytePos % WIDTH));
val = Short.MIN_VALUE;
}
heights.setShort(bytePos, val);
}
}
// demProvider.toImage(file.getName() + ".png");
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
short val = demProvider.getHeight(lat, lon);
if (val == Short.MIN_VALUE) return Double.NaN;
return val;
}
@Override
public GHResponse route(GHRequest request) {
StopWatch sw = new StopWatch().start();
double took = 0;
try {
String url =
serviceUrl
+ "?point="
+ request.getFrom().lat
+ ","
+ request.getFrom().lon
+ "&point="
+ request.getTo().lat
+ ","
+ request.getTo().lon
+ "&type=json"
+ "&points_encoded="
+ pointsEncoded
+ "&min_path_precision="
+ request.getHint("douglas.minprecision", 1)
+ "&algo="
+ request.getAlgorithm();
String str = downloader.downloadAsString(url);
JSONObject json = new JSONObject(str);
took = json.getJSONObject("info").getDouble("took");
JSONArray paths = json.getJSONArray("paths");
JSONObject firstPath = paths.getJSONObject(0);
boolean is3D = false;
if (firstPath.has("points_dim")) is3D = "3".equals(firstPath.getString("points_dim"));
double distance = firstPath.getDouble("distance");
int time = firstPath.getInt("time");
PointList pointList;
if (pointsEncoded) {
pointList = WebHelper.decodePolyline(firstPath.getString("points"), 100, is3D);
} else {
JSONArray coords = firstPath.getJSONObject("points").getJSONArray("coordinates");
pointList = new PointList(coords.length(), is3D);
for (int i = 0; i < coords.length(); i++) {
JSONArray arr = coords.getJSONArray(i);
double lon = arr.getDouble(0);
double lat = arr.getDouble(1);
if (is3D) pointList.add(lat, lon, arr.getDouble(2));
else pointList.add(lat, lon);
}
}
GHResponse res = new GHResponse();
if (instructions) {
JSONArray instrArr = firstPath.getJSONArray("instructions");
InstructionList il = new InstructionList();
for (int instrIndex = 0; instrIndex < instrArr.length(); instrIndex++) {
JSONObject jsonObj = instrArr.getJSONObject(instrIndex);
double instDist = jsonObj.getDouble("distance");
String text = jsonObj.getString("text");
long instTime = jsonObj.getLong("time");
int sign = jsonObj.getInt("sign");
JSONArray iv = jsonObj.getJSONArray("interval");
int from = iv.getInt(0);
int to = iv.getInt(1);
PointList instPL = new PointList(to - from, is3D);
for (int j = from; j <= to; j++) {
instPL.add(pointList, j);
}
// TODO way and payment type
Instruction instr =
new Instruction(sign, text, -1, -1, instPL).setDistance(instDist).setTime(instTime);
il.add(instr);
}
res.setInstructions(il);
}
return res.setPoints(pointList).setDistance(distance).setMillis(time);
} catch (Exception ex) {
throw new RuntimeException(
"Problem while fetching path " + request.getFrom() + "->" + request.getTo(), ex);
} finally {
logger.debug("Full request took:" + sw.stop().getSeconds() + ", API took:" + took);
}
}