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plan_render_otp.c
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plan_render_otp.c
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/* Copyright 2013-2015 Bliksem Labs B.V.
* See the LICENSE file at the top-level directory of this distribution and at
* https://github.com/bliksemlabs/rrrr/
*/
#include "config.h"
#ifdef RRRR_FEATURE_RENDER_OTP
/* plan_render_otp.c renders plan structs to a json-variant of the API output of the OpenTripPlanner project */
#include "json.h"
#include "util.h"
#include "polyline.h"
#include "plan_render_otp.h"
#include "router_request.h"
#include <stdlib.h>
static char *
modes_string (tmode_t m, char *dst) {
if ((m & m_tram) == m_tram) { dst = strncpy(dst, "TRAM,", 5); dst += 5; }
if ((m & m_subway) == m_subway) { dst = strncpy(dst, "SUBWAY,", 7); dst += 7; }
if ((m & m_rail) == m_rail) { dst = strncpy(dst, "RAIL,", 5); dst += 5; }
if ((m & m_bus) == m_bus) { dst = strncpy(dst, "BUS,", 4); dst += 4; }
if ((m & m_ferry) == m_ferry) { dst = strncpy(dst, "FERRY,", 6); dst += 6; }
if ((m & m_cablecar) == m_cablecar) { dst = strncpy(dst, "CABLE_CAR,", 10); dst += 10; }
if ((m & m_gondola) == m_gondola) { dst = strncpy(dst, "GONDOLA,", 8); dst += 8; }
if ((m & m_funicular) == m_funicular) { dst = strncpy(dst, "FUNICULAR,", 10); dst += 10; }
return dst;
}
/* Produces a polyline connecting a subset of the stops in a route,
* or connecting two walk path endpoints if route_idx == WALK.
* sidx0 and sidx1 are global stop indexes, not stop indexes within the route.
*/
static void
polyline_for_leg (polyline_t *pl, tdata_t *tdata, leg_t *leg, router_request_t *req, uint8_t leg_idx) {
polyline_begin(pl);
if (leg->journey_pattern == STREET && leg_idx == 0){
if (req->from_latlon.lat != 0.0 && req->from_latlon.lon != 0.0){
polyline_latlon(pl, req->from_latlon);
}else if (req->from_stop_area != STOP_NONE){
polyline_latlon (pl, tdata->stop_area_coords[req->from_stop_area]);
}
polyline_latlon (pl, tdata->stop_point_coords[leg->sp_to]);
}else if (leg->journey_pattern == STREET) {
polyline_latlon (pl, tdata->stop_point_coords[leg->sp_from]);
if (req->to_latlon.lat != 0.0 && req->to_latlon.lon != 0.0){
polyline_latlon(pl, req->to_latlon);
}else if (req->to_stop_area != STOP_NONE){
polyline_latlon (pl, tdata->stop_area_coords[req->to_stop_area]);
}
}else if (leg->journey_pattern == WALK || leg->journey_pattern == STAY_ON) {
polyline_latlon (pl, tdata->stop_point_coords[leg->sp_from]);
polyline_latlon (pl, tdata->stop_point_coords[leg->sp_to]);
} else {
jppidx_t i_jpp;
journey_pattern_t jp = tdata->journey_patterns[leg->journey_pattern];
spidx_t *stops = tdata_points_for_journey_pattern (tdata, leg->journey_pattern);
bool output = false;
for (i_jpp = 0; i_jpp < jp.n_stops; ++i_jpp) {
spidx_t sidx = stops[i_jpp];
if (!output && (sidx == leg->sp_from)) output = true;
if (output) polyline_latlon (pl, tdata->stop_point_coords[sidx]);
if (sidx == leg->sp_to) break;
}
}
/* printf ("final polyline: %s\n\n", polyline_result ()); */
}
static int64_t
rtime_to_msec(rtime_t rtime, time_t date, int32_t tdata_utc_offset) {
return ((int64_t) 1000) * (RTIME_TO_SEC_SIGNED(rtime - RTIME_ONE_DAY) + date - tdata_utc_offset);
}
static void
json_place (json_t *j, const char *key, rtime_t arrival, rtime_t departure,
spidx_t stop_index, tdata_t *tdata, time_t date) {
const char *stop_name = tdata_stop_point_name_for_index(tdata, stop_index);
const char *platformcode = tdata_platformcode_for_index(tdata, stop_index);
const char *stop_id = tdata_stop_point_id_for_index(tdata, stop_index);
uint8_t *stop_attr = tdata_stop_point_attributes_for_index(tdata, stop_index);
latlon_t coords = tdata->stop_point_coords[stop_index];
json_key_obj(j, key);
json_kv(j, "name", stop_name);
json_key_obj(j, "stopId");
json_kv(j, "agencyId", "NL");
json_kv(j, "id", stop_id);
json_end_obj(j);
json_kv(j, "stopCode", NULL); /* eventually fill it with UserStopCode */
json_kv(j, "platformCode", platformcode);
json_kf(j, "lat", coords.lat);
json_kf(j, "lon", coords.lon);
json_kv(j, "wheelchairBoarding", (*stop_attr & sa_wheelchair_boarding) ? "true" : NULL);
json_kv(j, "visualAccessible", (*stop_attr & sa_visual_accessible) ? "true" : NULL);
if (arrival == UNREACHED) {
json_kv(j, "arrival", NULL);
} else {
json_kl(j, "arrival", rtime_to_msec(arrival, date, tdata->utc_offset));
}
if (departure == UNREACHED) {
json_kv(j, "departure", NULL);
} else {
json_kl(j, "departure", rtime_to_msec(departure, date, tdata->utc_offset));
}
json_end_obj(j);
}
static void
json_place_area (json_t *j, const char *key, rtime_t arrival, rtime_t departure,
spidx_t stop_area_index, tdata_t *tdata, time_t date) {
const char *stop_area_name = tdata_stop_area_name_for_index(tdata, stop_area_index);
const char *stop_area_id = tdata_stop_area_id_for_index(tdata, stop_area_index);
latlon_t coords = tdata->stop_area_coords[stop_area_index];
json_key_obj(j, key);
json_kv(j, "name", stop_area_name);
json_key_obj(j, "stopId");
json_kv(j, "agencyId", "NL");
json_kv(j, "id", stop_area_id);
json_end_obj(j);
json_kv(j, "stopCode", NULL); /* eventually fill it with UserStopCode */
json_kv(j, "platformCode", NULL);
json_kf(j, "lat", coords.lat);
json_kf(j, "lon", coords.lon);
json_kv(j, "wheelchairBoarding", NULL);
json_kv(j, "visualAccessible", NULL);
if (arrival == UNREACHED) {
json_kv(j, "arrival", NULL);
} else {
json_kl(j, "arrival", rtime_to_msec(arrival, date, tdata->utc_offset));
}
if (departure == UNREACHED) {
json_kv(j, "departure", NULL);
} else {
json_kl(j, "departure", rtime_to_msec(departure, date, tdata->utc_offset));
}
json_end_obj(j);
}
static void put_servicedate(leg_t *leg, time_t date, tdata_t *tdata, char *servicedate){
struct tm ltm;
#ifdef RRRR_FEATURE_REALTIME_EXPANDED
time_t servicedate_time = (time_t) tdata->calendar_start_time + (SEC_IN_ONE_DAY * leg->cal_day);
UNUSED(date);
#else
time_t servicedate_time = date + RTIME_TO_SEC(leg->t0 % RTIME_ONE_DAY);
UNUSED(tdata);
#endif
rrrr_gmtime_r(&servicedate_time, <m);
strftime(servicedate, 9, "%Y%m%d", <m);
}
static void
json_leg (json_t *j, leg_t *leg, tdata_t *tdata,
router_request_t *req, time_t date, uint8_t leg_idx, bool interlineWithPreviousLeg) {
const char *mode = NULL;
const char *headsign = NULL;
const char *linecode = NULL;
const char *line_color = NULL;
const char *line_color_text = NULL;
const char *linename = NULL;
const char *commercialmode = NULL;
const char *line_id = NULL;
const char *vj_id = NULL;
vj_attribute_mask_t vj_attributes = 0;
const char *wheelchair_accessible = NULL;
const char *operator_id = NULL;
const char *operator_name = NULL;
const char *operator_url = NULL;
char agencyTzOffset[16] = "\0";
char servicedate[9] = "\0";
int64_t departuredelay = 0;
int64_t starttime = rtime_to_msec(leg->t0, date, tdata->utc_offset);
int64_t endtime = rtime_to_msec(leg->t1, date, tdata->utc_offset);
polyline_t pl;
if (leg->journey_pattern >= WALK) mode = "WALK"; else {
put_servicedate(leg, date, tdata, servicedate);
#ifdef RRRR_FEATURE_REALTIME_EXPANDED
headsign = tdata_headsign_for_journey_pattern_point(tdata, leg->journey_pattern,leg->jpp0);
#else
headsign = tdata_headsign_for_journey_pattern(tdata, leg->journey_pattern);
#endif
linecode = tdata_line_code_for_journey_pattern(tdata, leg->journey_pattern);
line_color = tdata_line_color_for_journey_pattern(tdata, leg->journey_pattern);
line_color_text = tdata_line_color_text_for_journey_pattern(tdata, leg->journey_pattern);
linename = tdata_line_name_for_journey_pattern(tdata, leg->journey_pattern);
commercialmode = tdata_commercial_mode_name_for_journey_pattern(tdata, leg->journey_pattern);
line_id = tdata_line_id_for_journey_pattern(tdata, leg->journey_pattern);
operator_id = tdata_operator_id_for_journey_pattern(tdata, leg->journey_pattern);
operator_name = tdata_operator_name_for_journey_pattern(tdata, leg->journey_pattern);
operator_url = tdata_operator_url_for_journey_pattern(tdata, leg->journey_pattern);
vj_id = tdata_vehicle_journey_id_for_jp_vj_offset(tdata, leg->journey_pattern, leg->vj);
vj_attributes = tdata->vjs[leg->vj].vj_attributes;
sprintf(agencyTzOffset,"%d",tdata_utc_offset_for_jp_vj_offset(tdata, leg->journey_pattern, leg->vj)*1000);
/* departuredelay = tdata_delay_min (tdata, leg->journey_pattern, leg->vj); */
wheelchair_accessible = (vj_attributes & vja_wheelchair_accessible) ? "true" : NULL;
if ((tdata->journey_patterns[leg->journey_pattern].attributes & m_tram) == m_tram) mode = "TRAM"; else
if ((tdata->journey_patterns[leg->journey_pattern].attributes & m_subway) == m_subway) mode = "SUBWAY"; else
if ((tdata->journey_patterns[leg->journey_pattern].attributes & m_rail) == m_rail) mode = "RAIL"; else
if ((tdata->journey_patterns[leg->journey_pattern].attributes & m_bus) == m_bus) mode = "BUS"; else
if ((tdata->journey_patterns[leg->journey_pattern].attributes & m_ferry) == m_ferry) mode = "FERRY"; else
if ((tdata->journey_patterns[leg->journey_pattern].attributes & m_cablecar) == m_cablecar) mode = "CABLE_CAR"; else
if ((tdata->journey_patterns[leg->journey_pattern].attributes & m_gondola) == m_gondola) mode = "GONDOLA"; else
if ((tdata->journey_patterns[leg->journey_pattern].attributes & m_funicular) == m_funicular) mode = "FUNICULAR"; else
mode = "INVALID";
}
json_obj(j); /* one leg */
/* TODO We should have stop arrival/departure here */
json_place(j, "from", UNREACHED, leg->t0, leg->sp_from, tdata, date);
json_place(j, "to", leg->t1, UNREACHED, leg->sp_to, tdata, date);
json_kv(j, "mode", mode);
json_kl(j, "startTime", starttime);
json_kl(j, "endTime", endtime);
json_kl(j, "departureDelay", departuredelay);
json_kl(j, "arrivalDelay", 0);
json_kv(j, "route", linecode && strcmp(linecode,"") ? linename : linecode);
json_kv(j, "routeShortName", linecode);
json_kv(j, "routeLongName", linename);
json_kv(j, "routeId", line_id);
json_kv(j, "routeColor", line_color);
json_kv(j, "routeTextColor", line_color_text);
json_kv(j, "headsign", headsign);
json_kv(j, "tripId", vj_id);
json_kv(j, "serviceDate", servicedate);
json_kv(j, "agencyId", operator_id);
json_kv(j, "agencyName", operator_name);
json_kv(j, "agencyUrl", operator_url);
if (interlineWithPreviousLeg){
json_kv(j, "interlineWithPreviousLeg", "true");
}
if (leg->journey_pattern < WALK){
json_kv(j, "agencyTimeZoneOffset", agencyTzOffset);
}
json_kv(j, "wheelchairAccessible", wheelchair_accessible);
json_kv(j, "productCategory", commercialmode);
/*
"realTime": false,
"distance": 2656.2383456335,
"mode": "BUS",
"route": "39",
"agencyName": "RET",
"agencyUrl": "http:\/\/www.ret.nl",
"agencyTimeZoneOffset": 7200000,
"routeColor": null,
"routeType": 3,
"routeId": "1836",
"routeTextColor": null,
"interlineWithPreviousLeg": false,
"tripShortName": "48562",
"tripBlockId": null,
"headsign": "Rotterdam Centraal",
"agencyId": "RET",
"tripId": "2597372",
"serviceDate": "20130819",
"from": {
"name": "Rotterdam, Nieuwe Crooswijksewe",
"stopId": {
"agencyId": "ARR",
"id": "52272"
},
"stopCode": "HA2286",
"platformCode": null,
"lon": 4.49654,
"lat": 51.934423,
"arrival": 1376897759000,
"departure": 1376897760000,
"orig": null,
"zoneId": null,
"stopIndex": 3
},
"to": {
"name": "Rotterdam, Rotterdam Centraal",
"stopId": {
"agencyId": "ARR",
"id": "51175"
},
"stopCode": "HA3940",
"platformCode": null,
"lon": 4.467403,
"lat": 51.923529,
"arrival": 1376898480000,
"departure": 1376898770000,
"orig": null,
"zoneId": null,
"stopIndex": 10
},
"legGeometry": {
"points": "cm~{HkfmZfI|JDfj@zMfHpUlHpI`\\nDzZdChr@",
"levels": null,
"length": 8
},
"notes": null,
"alerts": null,
"routeShortName": "39",
"routeLongName": null,
"boardRule": null,
"alightRule": null,
"rentedBike": false,
"transitLeg": true,
"duration": 720000,
"intermediateStops": null,
"steps": [
]
*/
json_key_obj(j, "legGeometry");
polyline_for_leg (&pl, tdata, leg, req, leg_idx);
json_kv(j, "points", polyline_result(&pl));
json_kv(j, "levels", NULL);
json_kd(j, "length", (int) polyline_length(&pl));
json_end_obj(j);
json_key_arr(j, "intermediateStops");
if (req->intermediatestops && leg->journey_pattern != WALK) {
jppidx_t i_jpp;
bool visible = false;
for (i_jpp = 0; i_jpp < tdata->journey_patterns[leg->journey_pattern].n_stops; i_jpp++) {
spidx_t stop_idx = tdata->journey_pattern_points[tdata->journey_patterns[leg->journey_pattern].journey_pattern_point_offset + i_jpp];
if (stop_idx == leg->sp_from) {
visible = true;
continue;
} else if (stop_idx == leg->sp_to) {
visible = false;
break;
}
if (visible) {
vehicle_journey_t vj = tdata->vjs[tdata->journey_patterns[leg->journey_pattern].vj_index + leg->vj];
rtime_t arrival = vj.begin_time + tdata->stop_times[vj.stop_times_offset + i_jpp].arrival;
rtime_t departure = vj.begin_time + tdata->stop_times[vj.stop_times_offset + i_jpp].departure;
json_place(j, NULL, arrival, departure, stop_idx, tdata, date);
}
}
}
json_end_arr(j);
json_kl(j, "duration", endtime - starttime);
json_end_obj(j);
}
static void
json_itinerary (json_t *j, itinerary_t *itin, tdata_t *tdata, router_request_t *req, time_t date) {
int64_t starttime = rtime_to_msec(itin->legs[0].t0, date, tdata->utc_offset);
int64_t endtime = rtime_to_msec(itin->legs[(itin->n_legs - 1)].t1, date, tdata->utc_offset);
int32_t walktime = 0;
int32_t walkdistance = 0;
int32_t waitingtime = 0;
int32_t transittime = 0;
bool interlineWithPreviousLeg = false;
uint8_t leg_idx;
json_obj(j); /* one itinerary */
json_kl(j, "duration", endtime - starttime);
json_kl(j, "startTime", starttime);
json_kl(j, "endTime", endtime);
json_kd(j, "transfers", MAX(0,itin->n_rides - 1));
json_key_arr(j, "legs");
for (leg_idx = 0; leg_idx < itin->n_legs; ++leg_idx) {
leg_t *leg = &itin->legs[leg_idx];
uint32_t leg_duration = RTIME_TO_SEC(leg->t1 - leg->t0);
if (leg->journey_pattern == STAY_ON){
interlineWithPreviousLeg = true;
continue;
}
json_leg (j, leg, tdata, req, date, leg_idx, interlineWithPreviousLeg);
interlineWithPreviousLeg = false;
if (leg->journey_pattern >= WALK) {
if (leg->sp_from == leg->sp_to) {
waitingtime += leg_duration;
} else {
walktime += leg_duration;
/* TODO: make this a real distance */
walkdistance += leg_duration;
}
} else {
transittime += leg_duration;
}
}
json_end_arr(j);
json_kd(j, "walkTime", walktime);
json_kd(j, "transitTime", transittime);
json_kd(j, "waitingTime", waitingtime);
json_kd(j, "walkDistance", walkdistance);
json_kb(j, "walkLimitExceeded", false);
json_kd(j, "elevationLost",0);
json_kd(j, "elevationGained",0);
json_kv(j, "occupancyStatus", NULL);
json_end_obj(j);
}
static uint32_t
otp_json(json_t *j, plan_t *plan, tdata_t *tdata, char *buf, uint32_t buflen) {
struct tm ltm;
time_t date_seconds = router_request_to_date(& plan->req, tdata, <m);
char date[11];
char requesttime[16];
uint8_t i;
strftime(date, 11, "%Y-%m-%d", <m);
btimetext(plan->req.time, requesttime);
json_init(j, buf, buflen);
json_obj(j);
json_kv(j, "error", "null");
json_key_obj(j, "requestParameters");
json_kv(j, "time", requesttime);
json_kb(j, "arriveBy", plan->req.arrive_by);
json_kf(j, "maxWalkDistance", 2000.0);
if (plan->req.from_stop_area != STOP_NONE) {
json_kv(j, "fromPlace", tdata_stop_area_name_for_index(tdata, plan->req.from_stop_area));
} else {
json_kv(j, "fromPlace", tdata_stop_point_name_for_index(tdata, plan->req.from_stop_point));
}
if (plan->req.to_stop_area != STOP_NONE) {
json_kv(j, "toPlace", tdata_stop_area_name_for_index(tdata, plan->req.to_stop_area));
} else {
json_kv(j, "toPlace", tdata_stop_point_name_for_index(tdata, plan->req.to_stop_point));
}
json_kv(j, "date", date);
if (plan->req.mode == m_all) {
json_kv(j, "mode", "TRANSIT,WALK");
} else {
/* max length is 58 + 4 + 8 = 70, minus shortest (3 + 1) + 1 */
char modes[67];
char *dst = modes;
dst = modes_string (plan->req.mode, dst);
dst = strcpy(dst, "WALK");
json_kv(j, "mode", modes);
}
json_end_obj(j);
json_key_obj(j, "plan");
json_kl(j, "date", ((int64_t) 1000) * date_seconds);
if (plan->req.from_stop_area != STOP_NONE) {
json_place_area(j, "from", UNREACHED, UNREACHED, plan->req.from_stop_area, tdata, date_seconds);
} else {
json_place(j, "from", UNREACHED, UNREACHED, plan->req.from_stop_point, tdata, date_seconds);
}
if (plan->req.to_stop_area != STOP_NONE) {
json_place_area(j, "to", UNREACHED, UNREACHED, plan->req.to_stop_area, tdata, date_seconds);
} else {
json_place(j, "to", UNREACHED, UNREACHED, plan->req.to_stop_point, tdata, date_seconds);
}
json_key_arr(j, "itineraries");
for (i = 0; i < plan->n_itineraries; ++i) {
json_itinerary (j, plan->itineraries + i, tdata, &plan->req, date_seconds);
}
json_end_arr(j);
json_end_obj(j);
#if 0
json_key_obj(j, "debug");
json_kd(j, "precalculationTime", 12);
json_kd(j, "pathCalculationTime", 808);
json_kb(j, "timedOut", false);
json_end_obj(j);
#endif
json_end_obj(j);
json_end(j);
/* json_dump(j); */
return (uint32_t) json_length(j);
}
uint32_t
plan_render_otp(plan_t *plan, tdata_t *tdata, char *buf, uint32_t buflen) {
json_t j;
return otp_json(&j, plan, tdata, buf, buflen);
}
uint32_t metadata_render_otp (tdata_t *tdata, char *buf, uint32_t buflen) {
json_t j;
float *lon, *lat;
uint64_t starttime, endtime;
spidx_t i_stop = (spidx_t) tdata->n_stop_points;
tmode_t m;
char modes[67];
char *dst = modes;
tdata_validity (tdata, &starttime, &endtime);
tdata_modes (tdata, &m);
json_init(&j, buf, buflen);
json_obj(&j);
json_kl(&j, "startTime", (int64_t) (starttime * 1000));
json_kl(&j, "endTime", (int64_t) (endtime * 1000));
dst = modes_string (m, dst);
dst[-1] = '\0';
json_kv(&j, "transitModes", modes);
lon = (float *) malloc(sizeof(float) * tdata->n_stop_points);
lat = (float *) malloc(sizeof(float) * tdata->n_stop_points);
if (lon && lat) {
latlon_t ll, ur, c;
do {
i_stop--;
lon[i_stop] = tdata->stop_point_coords[i_stop].lon;
lat[i_stop] = tdata->stop_point_coords[i_stop].lat;
} while (i_stop > 0);
c.lon = median (lon, tdata->n_stop_points, &ll.lon, &ur.lon);
c.lat = median (lat, tdata->n_stop_points, &ll.lat, &ur.lat);
json_kf(&j, "lowerLeftLatitude", ll.lat);
json_kf(&j, "lowerLeftLongitude", ll.lon);
json_kf(&j, "upperRightLatitude", ur.lat);
json_kf(&j, "upperRightLongitude", ur.lon);
json_kf(&j, "minLatitude", ll.lat);
json_kf(&j, "minLongitude", ll.lon);
json_kf(&j, "maxLatitude", ur.lat);
json_kf(&j, "maxLongitude", ur.lon);
json_kf(&j, "centerLatitude", c.lat);
json_kf(&j, "centerLongitude", c.lon);
}
free (lon);
free (lat);
json_end_obj(&j);
json_end(&j);
return (uint32_t) json_length(&j);
}
#else
void plan_render_otp_not_available();
#endif /* RRRR_FEATURE_RENDER_OTP */