@Test
public void testDecode() throws Exception {
PointList list = WebHelper.decodePolyline("_p~iF~ps|U", 1);
assertEquals(Helper.createPointList(38.5, -120.2), list);
list = WebHelper.decodePolyline("_p~iF~ps|U_ulLnnqC_mqNvxq`@", 3);
assertEquals(Helper.createPointList(38.5, -120.2, 40.7, -120.95, 43.252, -126.453), list);
}
@Test
public void testEncode() throws Exception {
assertEquals("_p~iF~ps|U", WebHelper.encodePolyline(Helper.createPointList(38.5, -120.2)));
assertEquals(
"_p~iF~ps|U_ulLnnqC_mqNvxq`@",
WebHelper.encodePolyline(
Helper.createPointList(38.5, -120.2, 40.7, -120.95, 43.252, -126.453)));
}
public void doPost(HttpServletRequest request, HttpServletResponse response) {
try {
WebHelper webHelper = new WebHelper(request, response);
IView view = webHelper.execute();
if (view != null) {
view.dispather(request, response);
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Test
public void testBoth() throws Exception {
PointList list =
Helper.createPointList(
38.5, -120.2, 43.252, -126.453, 40.7, -120.95, 50.3139, 10.612793, 50.04303, 9.497681);
String str = WebHelper.encodePolyline(list);
assertEquals(list, WebHelper.decodePolyline(str, list.size()));
list =
Helper.createPointList(38.5, -120.2, 43.252, -126.453, 40.7, -120.95, 40.70001, -120.95001);
str = WebHelper.encodePolyline(list);
assertEquals(list, WebHelper.decodePolyline(str, list.size()));
}
@Override
public void run() {
// TODO
// 在这里进行 http request.网络请求相关操作
Message msg = new Message();
Bundle data = new Bundle();
WebHelper helper =
new WebHelper(
"http://ip168.com/chxip/doConveRate.do?fromcurrency=CNY&tocurrency=CNY&keyword=12312");
// WebHelper helper =new WebHelper("http://www.baidu.com");
// helper.NetType(context);
String valString = helper.GetResult();
data.putString("value", valString);
msg.setData(data);
handler.sendMessage(msg);
}
public static PathWrapper createPathWrapper(
JSONObject path, boolean tmpCalcPoints, boolean tmpInstructions, boolean tmpElevation) {
PathWrapper pathWrapper = new PathWrapper();
pathWrapper.addErrors(readErrors(path));
if (pathWrapper.hasErrors()) return pathWrapper;
if (path.has("snapped_waypoints")) {
String snappedPointStr = path.getString("snapped_waypoints");
PointList snappedPoints = WebHelper.decodePolyline(snappedPointStr, 5, tmpElevation);
pathWrapper.setWaypoints(snappedPoints);
}
if (tmpCalcPoints) {
String pointStr = path.getString("points");
PointList pointList = WebHelper.decodePolyline(pointStr, 100, tmpElevation);
pathWrapper.setPoints(pointList);
if (tmpInstructions) {
JSONArray instrArr = path.getJSONArray("instructions");
InstructionList il = new InstructionList(null);
int viaCount = 1;
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, tmpElevation);
for (int j = from; j <= to; j++) {
instPL.add(pointList, j);
}
InstructionAnnotation ia = InstructionAnnotation.EMPTY;
if (jsonObj.has("annotation_importance") && jsonObj.has("annotation_text")) {
ia =
new InstructionAnnotation(
jsonObj.getInt("annotation_importance"),
jsonObj.getString("annotation_text"),
0,
false);
}
Instruction instr;
if (sign == Instruction.USE_ROUNDABOUT || sign == Instruction.LEAVE_ROUNDABOUT) {
RoundaboutInstruction ri = new RoundaboutInstruction(sign, text, ia, instPL);
if (jsonObj.has("exit_number")) {
ri.setExitNumber(jsonObj.getInt("exit_number"));
}
if (jsonObj.has("turn_angle")) {
// TODO provide setTurnAngle setter
double angle = jsonObj.getDouble("turn_angle");
ri.setDirOfRotation(angle);
ri.setRadian((angle < 0 ? -Math.PI : Math.PI) - angle);
}
instr = ri;
} else if (sign == Instruction.REACHED_VIA) {
ViaInstruction tmpInstr = new ViaInstruction(text, ia, instPL);
tmpInstr.setViaCount(viaCount);
viaCount++;
instr = tmpInstr;
} else if (sign == Instruction.FINISH) {
instr = new FinishInstruction(instPL, 0);
} else {
instr = new Instruction(sign, text, ia, instPL);
}
// The translation is done from the routing service so just use the provided string
// instead of creating a combination with sign and name etc
instr.setUseRawName();
instr.setDistance(instDist).setTime(instTime);
il.add(instr);
}
pathWrapper.setInstructions(il);
}
}
double distance = path.getDouble("distance");
long time = path.getLong("time");
pathWrapper.setDistance(distance).setTime(time);
return pathWrapper;
}
@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 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);
}
}