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feed.go
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feed.go
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// Copyright 2023 Patrick Brosi
// Authors: [email protected]
//
// Use of this source code is governed by a GPL v2
// license that can be found in the LICENSE file
package gtfsparser
import (
// "archive/zip"
"errors"
"fmt"
"github.com/klauspost/compress/zip"
"github.com/patrickbr/gtfsparser/gtfs"
"io"
"math"
"os"
opath "path"
"runtime"
"sort"
"unicode"
)
// Holds the original column ordering
type ColOrders struct {
Agencies []string
Stops []string
Routes []string
Trips []string
StopTimes []string
Frequencies []string
Calendar []string
CalendarDates []string
FareAttributes []string
FareAttributeRules []string
Shapes []string
Levels []string
Pathways []string
Transfers []string
FeedInfos []string
Attributions []string
}
type Polygon struct {
OuterRing [][2]float64
InnerRings [][][2]float64
ll [2]float64
ur [2]float64
}
// NewPolygon creates a new Polygon from an outer ring
func NewPolygon(outer [][2]float64, inners [][][2]float64) Polygon {
poly := Polygon{outer, inners, [2]float64{math.MaxFloat64, math.MaxFloat64}, [2]float64{-math.MaxFloat64, -math.MaxFloat64}}
for _, p := range outer {
if p[0] < poly.ll[0] {
poly.ll[0] = p[0]
}
if p[1] < poly.ll[1] {
poly.ll[1] = p[1]
}
if p[0] > poly.ur[0] {
poly.ur[0] = p[0]
}
if p[1] > poly.ur[1] {
poly.ur[1] = p[1]
}
}
for _, inner := range inners {
for _, p := range inner {
if p[0] < poly.ll[0] {
poly.ll[0] = p[0]
}
if p[1] < poly.ll[1] {
poly.ll[1] = p[1]
}
if p[0] > poly.ur[0] {
poly.ur[0] = p[0]
}
if p[1] > poly.ur[1] {
poly.ur[1] = p[1]
}
}
}
return poly
}
// A ParseOptions object holds options for parsing a the feed
type ParseOptions struct {
UseDefValueOnError bool
DropErroneous bool
DryRun bool
CheckNullCoordinates bool
EmptyStringRepl string
ZipFix bool
ShowWarnings bool
DropShapes bool
KeepAddFlds bool
DateFilterStart gtfs.Date
DateFilterEnd gtfs.Date
PolygonFilter []Polygon
UseStandardRouteTypes bool
MOTFilter map[int16]bool
MOTFilterNeg map[int16]bool
AssumeCleanCsv bool
RemoveFillers bool
UseGoogleSupportedRouteTypes bool
DropSingleStopTrips bool
}
type ErrStats struct {
DroppedAgencies int
DroppedStops int
DroppedRoutes int
DroppedTrips int
DroppedStopTimes int
DroppedFrequencies int
DroppedServices int
DroppedFareAttributes int
DroppedFareAttributeRules int
DroppedAttributions int
DroppedShapes int
DroppedLevels int
DroppedPathways int
DroppedTransfers int
DroppedFeedInfos int
DroppedTranslations int
NumTranslations int
}
// Feed represents a single GTFS feed
type Feed struct {
Agencies map[string]*gtfs.Agency
Stops map[string]*gtfs.Stop
Routes map[string]*gtfs.Route
Trips map[string]*gtfs.Trip
Services map[string]*gtfs.Service
FareAttributes map[string]*gtfs.FareAttribute
Shapes map[string]*gtfs.Shape
Levels map[string]*gtfs.Level
Pathways map[string]*gtfs.Pathway
Transfers map[gtfs.TransferKey]gtfs.TransferVal
FeedInfos []*gtfs.FeedInfo
StopsAddFlds map[string]map[string]string
AgenciesAddFlds map[string]map[string]string
RoutesAddFlds map[string]map[string]string
TripsAddFlds map[string]map[string]string
StopTimesAddFlds map[string]map[string]map[int]string
FrequenciesAddFlds map[string]map[string]map[*gtfs.Frequency]string
ShapesAddFlds map[string]map[string]map[int]string
FareRulesAddFlds map[string]map[string]map[*gtfs.FareAttributeRule]string
LevelsAddFlds map[string]map[string]string
PathwaysAddFlds map[string]map[string]string
FareAttributesAddFlds map[string]map[string]string
TransfersAddFlds map[string]map[gtfs.TransferKey]string
FeedInfosAddFlds map[string]map[*gtfs.FeedInfo]string
AttributionsAddFlds map[string]map[*gtfs.Attribution]string
TranslationsAddFlds map[string]map[*gtfs.Translation]string
// this only holds feed-wide attributions
Attributions []*gtfs.Attribution
ErrorStats ErrStats
NumShpPoints int
NumStopTimes int
ColOrders ColOrders
lastTrip *gtfs.Trip
lastShape *gtfs.Shape
zipFileCloser *zip.ReadCloser
curFileHandle *os.File
lastString *string
emptyString string
fastParsePossible bool
opts ParseOptions
}
// NewFeed creates a new, empty feed
func NewFeed() *Feed {
g := Feed{
Agencies: make(map[string]*gtfs.Agency),
Stops: make(map[string]*gtfs.Stop),
Routes: make(map[string]*gtfs.Route),
Trips: make(map[string]*gtfs.Trip),
Services: make(map[string]*gtfs.Service),
FareAttributes: make(map[string]*gtfs.FareAttribute),
Shapes: make(map[string]*gtfs.Shape),
Levels: make(map[string]*gtfs.Level),
Pathways: make(map[string]*gtfs.Pathway),
Transfers: make(map[gtfs.TransferKey]gtfs.TransferVal, 0),
FeedInfos: make([]*gtfs.FeedInfo, 0),
StopsAddFlds: make(map[string]map[string]string),
StopTimesAddFlds: make(map[string]map[string]map[int]string),
FrequenciesAddFlds: make(map[string]map[string]map[*gtfs.Frequency]string),
ShapesAddFlds: make(map[string]map[string]map[int]string),
AgenciesAddFlds: make(map[string]map[string]string),
RoutesAddFlds: make(map[string]map[string]string),
TripsAddFlds: make(map[string]map[string]string),
LevelsAddFlds: make(map[string]map[string]string),
PathwaysAddFlds: make(map[string]map[string]string),
FareAttributesAddFlds: make(map[string]map[string]string),
FareRulesAddFlds: make(map[string]map[string]map[*gtfs.FareAttributeRule]string),
TransfersAddFlds: make(map[string]map[gtfs.TransferKey]string),
FeedInfosAddFlds: make(map[string]map[*gtfs.FeedInfo]string),
AttributionsAddFlds: make(map[string]map[*gtfs.Attribution]string),
ErrorStats: ErrStats{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
NumShpPoints: 0,
NumStopTimes: 0,
fastParsePossible: true,
opts: ParseOptions{false, false, false, false, "", false, false, false, false, gtfs.Date{}, gtfs.Date{}, make([]Polygon, 0), false, make(map[int16]bool, 0), make(map[int16]bool, 0), false, false, false, false},
}
g.lastString = &g.emptyString
return &g
}
// SetParseOpts sets the ParseOptions for this feed
func (feed *Feed) SetParseOpts(opts ParseOptions) {
feed.opts = opts
}
// Parse the GTFS data in the specified folder into the feed
func (feed *Feed) Parse(path string) error {
return feed.PrefixParse(path, "")
}
// Parse the GTFS data in the specified folder into the feed, use
// and id prefix
func (feed *Feed) PrefixParse(path string, prefix string) error {
var e error
// holds stops that are dropped because of geometric filtering.
// if these are referenced later, we quietly ignore the error like
// with -De
geofilteredStops := make(map[string]struct{}, 0)
// holds routes that are dropped because of MOT filtering.
// if these are referenced later, we quietly ignore the error like
// with -De
filteredRoutes := make(map[string]struct{}, 0)
// holds trips that are dropped because of MOT filtering.
// if these are referenced later, we quietly ignore the error like
// with -De
filteredTrips := make(map[string]struct{}, 0)
e = feed.parseAgencies(path, prefix)
if e == nil {
e = feed.parseFeedInfos(path)
}
runtime.GC()
if e == nil {
e = feed.parseLevels(path, prefix)
}
runtime.GC()
if e == nil {
e = feed.parseStops(path, prefix, geofilteredStops)
}
runtime.GC()
if e == nil {
e = feed.reserveShapes(path, prefix)
}
runtime.GC()
if e == nil {
e = feed.parseShapes(path, prefix)
}
runtime.GC()
if e == nil {
e = feed.parseRoutes(path, prefix, filteredRoutes)
}
runtime.GC()
if e == nil {
e = feed.parseCalendar(path, prefix)
}
runtime.GC()
if e == nil {
e = feed.parseCalendarDates(path, prefix)
}
runtime.GC()
if e == nil {
e = feed.parseTrips(path, prefix, filteredRoutes, filteredTrips)
}
runtime.GC()
if e == nil {
e = feed.reserveStopTimes(path, prefix, filteredTrips)
}
runtime.GC()
if e == nil {
e = feed.parseStopTimes(path, prefix, geofilteredStops, filteredTrips)
}
if e == nil {
// remove reservation markers
for tripId, t := range feed.Trips {
// might be nil on dry run
if t != nil && t.Id != tripId {
t.Id = tripId
t.StopTimes = make(gtfs.StopTimes, 0)
}
}
}
runtime.GC()
if e == nil {
e = feed.parseFareAttributes(path, prefix)
}
runtime.GC()
if e == nil {
e = feed.parseFareAttributeRules(path, prefix, filteredRoutes)
}
runtime.GC()
if e == nil {
e = feed.parseFrequencies(path, prefix, filteredTrips)
}
runtime.GC()
if e == nil {
e = feed.parseTransfers(path, prefix, geofilteredStops, filteredRoutes)
}
runtime.GC()
if e == nil {
e = feed.parsePathways(path, prefix, geofilteredStops)
}
runtime.GC()
if e == nil {
e = feed.parseAttributions(path, prefix, filteredRoutes, filteredTrips)
}
runtime.GC()
// if e == nil {
// e = feed.parseTranslations(path, prefix)
// }
// close open readers
if feed.zipFileCloser != nil {
feed.zipFileCloser.Close()
feed.zipFileCloser = nil
}
if feed.curFileHandle != nil {
feed.curFileHandle.Close()
feed.curFileHandle = nil
}
if !feed.opts.DateFilterStart.IsEmpty() || !feed.opts.DateFilterEnd.IsEmpty() {
feed.filterServices(prefix)
}
if feed.opts.DropSingleStopTrips {
for _, t := range feed.Trips {
if len(t.StopTimes) < 2 {
feed.DeleteTrip(t.Id)
}
}
}
runtime.GC()
return e
}
func (feed *Feed) filterServices(prefix string) {
toDel := make([]*gtfs.Service, 0)
for _, t := range feed.Trips {
s := t.Service
if (s.IsEmpty() && s.Start_date().IsEmpty() && s.End_date().IsEmpty()) || s.GetFirstActiveDate().IsEmpty() {
feed.DeleteTrip(t.Id)
toDel = append(toDel, s)
}
}
for _, s := range toDel {
delete(feed.Services, s.Id())
}
}
func (feed *Feed) getFile(path string, name string) (io.Reader, error) {
fileInfo, err := os.Stat(path)
if err != nil {
return nil, err
}
if fileInfo.IsDir() {
if feed.curFileHandle != nil {
// close previous handle
feed.curFileHandle.Close()
}
return os.Open(opath.Join(path, name))
}
var e error
if feed.zipFileCloser == nil {
// reuse existing opened zip file
feed.zipFileCloser, e = zip.OpenReader(path)
}
if e != nil {
return nil, e
}
// check for any directory that is a ZIP file
zipDir := feed.getGTFSDir(feed.zipFileCloser)
if !feed.opts.ZipFix {
zipDir = ""
}
for _, f := range feed.zipFileCloser.File {
d, n := opath.Split(f.Name)
if d == zipDir && n == name {
return f.Open()
}
}
return nil, errors.New("Not found")
}
func (feed *Feed) parseAgencies(path string, prefix string) (err error) {
file, e := feed.getFile(path, "agency.txt")
if e != nil {
return errors.New("Could not open required file agency.txt")
}
reader := NewCsvParser(file, feed.opts.DropErroneous, false)
defer func() {
if r := recover(); r != nil {
err = ParseError{"agency.txt", reader.Curline, r.(error).Error()}
}
}()
var record []string
flds := AgencyFields{
agencyId: reader.headeridx.GetFldId("agency_id", -1),
agencyName: reader.headeridx.GetFldId("agency_name", -2),
agencyUrl: reader.headeridx.GetFldId("agency_url", -3),
agencyTimezone: reader.headeridx.GetFldId("agency_timezone", -4),
agencyLang: reader.headeridx.GetFldId("agency_lang", -5),
agencyPhone: reader.headeridx.GetFldId("agency_phone", -6),
agencyFareUrl: reader.headeridx.GetFldId("agency_fare_url", -7),
agencyEmail: reader.headeridx.GetFldId("agency_email", -8),
}
addFlds := make([]int, 0)
if feed.opts.KeepAddFlds {
addFlds = addiFields(reader.header, flds)
}
for record = reader.ParseCsvLine(); record != nil; record = reader.ParseCsvLine() {
agency, e := createAgency(record, flds, feed, prefix)
if e == nil {
if _, ok := feed.Agencies[agency.Id]; ok {
e = errors.New("ID collision, agency_id '" + agency.Id + "' already used.")
}
}
if e == nil {
existingAgId := ""
for k := range feed.Agencies {
existingAgId = k
break
}
if len(existingAgId) > 0 && feed.Agencies[existingAgId].Timezone != agency.Timezone {
e = fmt.Errorf("Agency '%s' has a different timezone (%s) than existing agencies (%s). All agencies must have the same timezone.", agency.Id, agency.Timezone.GetTzString(), feed.Agencies[existingAgId].Timezone.GetTzString())
}
}
if e != nil {
if feed.opts.DropErroneous {
feed.ErrorStats.DroppedAgencies++
feed.warn(e)
continue
} else {
panic(e)
}
}
feed.Agencies[agency.Id] = agency
for _, i := range addFlds {
if i < len(record) {
if _, ok := feed.AgenciesAddFlds[reader.header[i]]; !ok {
feed.AgenciesAddFlds[reader.header[i]] = make(map[string]string)
}
feed.AgenciesAddFlds[reader.header[i]][agency.Id] = record[i]
}
}
}
feed.ColOrders.Agencies = append([]string(nil), reader.header...)
return e
}
func (feed *Feed) parseStops(path string, prefix string, geofiltered map[string]struct{}) (err error) {
file, e := feed.getFile(path, "stops.txt")
if e != nil {
return errors.New("Could not open required file stops.txt")
}
reader := NewCsvParser(file, feed.opts.DropErroneous, false)
defer func() {
if r := recover(); r != nil {
err = ParseError{"stops.txt", reader.Curline, r.(error).Error()}
}
}()
var record []string
flds := StopFields{
stopId: reader.headeridx.GetFldId("stop_id", -1),
stopCode: reader.headeridx.GetFldId("stop_code", -2),
locationType: reader.headeridx.GetFldId("location_type", -3),
stopName: reader.headeridx.GetFldId("stop_name", -4),
stopDesc: reader.headeridx.GetFldId("stop_desc", -5),
stopLat: reader.headeridx.GetFldId("stop_lat", -6),
stopLon: reader.headeridx.GetFldId("stop_lon", -7),
zoneId: reader.headeridx.GetFldId("zone_id", -8),
stopUrl: reader.headeridx.GetFldId("stop_url", -9),
parentStation: reader.headeridx.GetFldId("parent_station", -10),
stopTimezone: reader.headeridx.GetFldId("stop_timezone", -11),
levelId: reader.headeridx.GetFldId("level_id", -12),
platformCode: reader.headeridx.GetFldId("platform_code", -13),
wheelchairBoarding: reader.headeridx.GetFldId("wheelchair_boarding", -14),
}
addFlds := make([]int, 0)
if feed.opts.KeepAddFlds {
addFlds = addiFields(reader.header, flds)
}
parentStopIds := make(map[string]string, 0)
for record = reader.ParseCsvLine(); record != nil; record = reader.ParseCsvLine() {
stop, parentId, e := createStop(record, flds, feed, prefix)
if e == nil {
if _, ok := feed.Stops[stop.Id]; ok {
e = errors.New("ID collision, stop_id '" + stop.Id + "' already used.")
}
}
if e != nil {
if feed.opts.DropErroneous {
feed.ErrorStats.DroppedStops++
feed.warn(e)
continue
} else {
panic(e)
}
}
// check if any defined PolygonFilter contains the stop
contains := true
for _, poly := range feed.opts.PolygonFilter {
contains = false
if poly.PolyContains(float64(stop.Lon), float64(stop.Lat)) {
contains = true
break
}
}
if !contains {
geofiltered[stop.Id] = struct{}{}
continue
}
if len(parentId) > len(prefix) {
parentStopIds[stop.Id] = parentId
}
feed.Stops[stop.Id] = stop
for _, i := range addFlds {
if i < len(record) {
if _, ok := feed.StopsAddFlds[reader.header[i]]; !ok {
feed.StopsAddFlds[reader.header[i]] = make(map[string]string)
}
feed.StopsAddFlds[reader.header[i]][stop.Id] = record[i]
}
}
}
feed.ColOrders.Stops = append([]string(nil), reader.header...)
// write the parent stop ids
for id, pid := range parentStopIds {
pstop, ok := feed.Stops[pid]
if !ok {
locErr := errors.New("(for stop id " + id + ") No station with id " + pid + " found, cannot use as parent station here.")
_, wasFiltered := geofiltered[pid]
// note: if type >= 2, a parent Id is *required*
if wasFiltered && feed.Stops[id].Location_type < 2 {
// continue, the default value "nil" has already be written above
continue
} else if feed.opts.UseDefValueOnError && feed.Stops[id].Location_type < 2 {
// continue, the default value "nil" has already be written above
feed.warn(locErr)
continue
} else if feed.opts.DropErroneous {
// delete the erroneous entry
delete(feed.Stops, id)
feed.ErrorStats.DroppedStops++
feed.warn(locErr)
continue
} else {
return locErr
}
}
if (feed.Stops[id].Location_type == 0 || feed.Stops[id].Location_type == 2 || feed.Stops[id].Location_type == 3) && pstop.Location_type != 1 {
locErr := fmt.Errorf("(for stop id %s) Station with id %s has location_type=%d, cannot use as parent station here for stop with location_type=%d (must be 1).", id, pid, pstop.Location_type, feed.Stops[id].Location_type)
if feed.opts.UseDefValueOnError && !(feed.Stops[id].Location_type == 2 || feed.Stops[id].Location_type == 3) {
// continue, the default value "nil" has already be written above
feed.warn(locErr)
continue
} else if feed.opts.DropErroneous {
// delete the erroneous entry
delete(feed.Stops, id)
feed.ErrorStats.DroppedStops++
feed.warn(locErr)
continue
} else {
return (locErr)
}
}
if feed.Stops[id].Location_type == 4 && pstop.Location_type != 0 {
locErr := fmt.Errorf("(for stop id %s) Station with id %s has location_type=%d, cannot use as parent station here for stop with location_type=4 (boarding area), which expects a parent station with location_type=0 (stop/platform).", id, pid, pstop.Location_type)
if feed.opts.DropErroneous {
// delete the erroneous entry
delete(feed.Stops, id)
feed.ErrorStats.DroppedStops++
feed.warn(locErr)
continue
} else {
panic(locErr)
}
}
feed.Stops[id].Parent_station = pstop
}
return e
}
func (feed *Feed) parseRoutes(path string, prefix string, filtered map[string]struct{}) (err error) {
file, e := feed.getFile(path, "routes.txt")
if e != nil {
return errors.New("Could not open required file routes.txt")
}
reader := NewCsvParser(file, feed.opts.DropErroneous, false)
defer func() {
if r := recover(); r != nil {
err = ParseError{"routes.txt", reader.Curline, r.(error).Error()}
}
}()
var record []string
flds := RouteFields{
routeId: reader.headeridx.GetFldId("route_id", -1),
agencyId: reader.headeridx.GetFldId("agency_id", -2),
routeShortName: reader.headeridx.GetFldId("route_short_name", -3),
routeLongName: reader.headeridx.GetFldId("route_long_name", -4),
routeDesc: reader.headeridx.GetFldId("route_desc", -5),
routeType: reader.headeridx.GetFldId("route_type", -6),
routeUrl: reader.headeridx.GetFldId("route_url", -7),
routeColor: reader.headeridx.GetFldId("route_color", -8),
routeTextColor: reader.headeridx.GetFldId("route_text_color", -9),
routeSortOrder: reader.headeridx.GetFldId("route_sort_order", -10),
continuousDropOff: reader.headeridx.GetFldId("continuous_drop_off", -11),
continuousPickup: reader.headeridx.GetFldId("continuous_pickup", -12),
}
addFlds := make([]int, 0)
if feed.opts.KeepAddFlds {
addFlds = addiFields(reader.header, flds)
}
for record = reader.ParseCsvLine(); record != nil; record = reader.ParseCsvLine() {
route, e := createRoute(record, flds, feed, prefix)
if e == nil {
if _, ok := feed.Routes[route.Id]; ok {
e = errors.New("ID collision, route_id '" + route.Id + "' already used.")
}
}
if e != nil {
if feed.opts.DropErroneous {
feed.ErrorStats.DroppedRoutes++
feed.warn(e)
continue
} else {
panic(e)
}
}
if feed.opts.UseStandardRouteTypes {
route.Type = gtfs.GetTypeFromExtended(route.Type)
}
if feed.opts.UseGoogleSupportedRouteTypes {
route.Type = gtfs.GetSupportedExtendedTypeFromExtended(route.Type)
}
if len(feed.opts.MOTFilter) != 0 {
if _, ok := feed.opts.MOTFilter[route.Type]; !ok {
filtered[route.Id] = struct{}{}
continue
}
}
if len(feed.opts.MOTFilterNeg) != 0 {
if _, ok := feed.opts.MOTFilterNeg[route.Type]; ok {
filtered[route.Id] = struct{}{}
continue
}
}
if feed.opts.DryRun {
feed.Routes[route.Id] = route
} else {
feed.Routes[route.Id] = route
for _, i := range addFlds {
if i < len(record) {
if _, ok := feed.RoutesAddFlds[reader.header[i]]; !ok {
feed.RoutesAddFlds[reader.header[i]] = make(map[string]string)
}
feed.RoutesAddFlds[reader.header[i]][route.Id] = record[i]
}
}
}
}
feed.ColOrders.Routes = append([]string(nil), reader.header...)
return e
}
func (feed *Feed) parseCalendar(path string, prefix string) (err error) {
file, e := feed.getFile(path, "calendar.txt")
if e != nil {
return nil
}
// reader := NewCsvParser(file, feed.opts.DropErroneous, feed.opts.AssumeCleanCsv && !feed.opts.KeepAddFlds)
reader := NewCsvParser(file, feed.opts.DropErroneous, false)
defer func() {
if r := recover(); r != nil {
err = ParseError{"calendar.txt", reader.Curline, r.(error).Error()}
}
}()
var record []string
flds := CalendarFields{
serviceId: reader.headeridx.GetFldId("service_id", -1),
monday: reader.headeridx.GetFldId("monday", -2),
tuesday: reader.headeridx.GetFldId("tuesday", -3),
wednesday: reader.headeridx.GetFldId("wednesday", -4),
thursday: reader.headeridx.GetFldId("thursday", -5),
friday: reader.headeridx.GetFldId("friday", -6),
saturday: reader.headeridx.GetFldId("saturday", -7),
sunday: reader.headeridx.GetFldId("sunday", -8),
startDate: reader.headeridx.GetFldId("start_date", -9),
endDate: reader.headeridx.GetFldId("end_date", -10),
}
for record = reader.ParseCsvLine(); record != nil; record = reader.ParseCsvLine() {
service, e := createServiceFromCalendar(record, flds, feed, prefix)
if e != nil {
if feed.opts.DropErroneous {
feed.ErrorStats.DroppedServices++
feed.warn(e)
continue
} else {
panic(e)
}
}
// if service was parsed in-place, nil was returned
if service != nil {
if feed.opts.DryRun {
feed.Services[service.Id()] = nil
} else {
feed.Services[service.Id()] = service
// check if service is completely out of range
if !feed.opts.DateFilterStart.IsEmpty() && service.End_date().GetTime().Before(feed.opts.DateFilterStart.GetTime()) || !feed.opts.DateFilterEnd.IsEmpty() && service.Start_date().GetTime().After(feed.opts.DateFilterEnd.GetTime()) {
service.SetRawDaymap(0)
} else {
// we overlap, there are now two cases:
// 1. A start date is defined, and the service starts before the start time. Set the start time to the new start time
if !feed.opts.DateFilterStart.IsEmpty() && service.Start_date().GetTime().Before(feed.opts.DateFilterStart.GetTime()) {
service.SetStart_date(feed.opts.DateFilterStart)
// note: because of the check above, End_date is guaranteed to >= DateFilterStart, so our service remains valid
}
// 2. An end date is defined, and the service ends after the start time. Set the end time to the new end time
if !feed.opts.DateFilterEnd.IsEmpty() && service.End_date().GetTime().After(feed.opts.DateFilterEnd.GetTime()) {
service.SetEnd_date(feed.opts.DateFilterEnd)
// note: because of the check above, Start_date is guaranteed to <= DateFilterEnd, so our service remains valid
}
}
}
}
}
feed.ColOrders.Calendar = append([]string(nil), reader.header...)
return e
}
func (feed *Feed) parseCalendarDates(path string, prefix string) (err error) {
file, e := feed.getFile(path, "calendar_dates.txt")
if e != nil {
return nil
}
// reader := NewCsvParser(file, feed.opts.DropErroneous, feed.opts.AssumeCleanCsv && !feed.opts.KeepAddFlds)
reader := NewCsvParser(file, feed.opts.DropErroneous, false)
defer func() {
if r := recover(); r != nil {
err = ParseError{"calendar_dates.txt", reader.Curline, r.(error).Error()}
}
}()
var record []string
flds := CalendarDatesFields{
serviceId: reader.headeridx.GetFldId("service_id", -1),
exceptionType: reader.headeridx.GetFldId("exception_type", -2),
date: reader.headeridx.GetFldId("date", -3),
}
for record = reader.ParseCsvLine(); record != nil; record = reader.ParseCsvLine() {
service, e := createServiceFromCalendarDates(record, flds, feed, feed.opts.DateFilterStart, feed.opts.DateFilterEnd, prefix)
if e != nil {
if feed.opts.DropErroneous {
feed.ErrorStats.DroppedServices++
feed.warn(e)
continue
} else {
panic(e)
}
}
// if service was parsed in-place, nil was returned
if service != nil {
if feed.opts.DryRun {
feed.Services[service.Id()] = nil
} else {
feed.Services[service.Id()] = service
}
}
}
feed.ColOrders.CalendarDates = append([]string(nil), reader.header...)
return e
}
func (feed *Feed) parseTrips(path string, prefix string, filteredRoutes map[string]struct{}, filteredTrips map[string]struct{}) (err error) {
file, e := feed.getFile(path, "trips.txt")
if e != nil {
return errors.New("Could not open required file trips.txt")
}
reader := NewCsvParser(file, feed.opts.DropErroneous, false)
defer func() {
if r := recover(); r != nil {
err = ParseError{"trips.txt", reader.Curline, r.(error).Error()}
}
}()
var record []string
flds := TripFields{
tripId: reader.headeridx.GetFldId("trip_id", -1),
routeId: reader.headeridx.GetFldId("route_id", -2),
serviceId: reader.headeridx.GetFldId("service_id", -3),
tripHeadsign: reader.headeridx.GetFldId("trip_headsign", -4),
tripShortName: reader.headeridx.GetFldId("trip_short_name", -5),
directionId: reader.headeridx.GetFldId("direction_id", -6),
blockId: reader.headeridx.GetFldId("block_id", -7),
shapeId: reader.headeridx.GetFldId("shape_id", -8),
wheelchairAccessible: reader.headeridx.GetFldId("wheelchair_accessible", -9),
bikesAllowed: reader.headeridx.GetFldId("bikes_allowed", -10),
}
addFlds := make([]int, 0)
if feed.opts.KeepAddFlds {
addFlds = addiFields(reader.header, flds)
}
for record = reader.ParseCsvLine(); record != nil; record = reader.ParseCsvLine() {
trip, e := createTrip(record, flds, feed, prefix)
tripId := ""
if e == nil {
tripId = trip.Id
trip.Id = ""
dummy := gtfs.StopTime{}
dummy.SetSequence(0)
trip.StopTimes = append(trip.StopTimes, dummy)
if _, ok := feed.Trips[tripId]; ok {
e = errors.New("ID collision, trip_id '" + tripId + "' already used.")
}
} else {
routeNotFoundErr, routeNotFound := e.(*RouteNotFoundErr)
wasFiltered := false
if routeNotFound {
_, wasFiltered = filteredRoutes[routeNotFoundErr.RouteId()]
}
if wasFiltered {
filteredTrips[routeNotFoundErr.PayloadId()] = struct{}{}
continue
} else if feed.opts.DropErroneous {
feed.ErrorStats.DroppedTrips++
feed.warn(e)
continue
} else {
panic(e)
}
}
feed.Trips[tripId] = trip
for _, i := range addFlds {
if i < len(record) {
if _, ok := feed.TripsAddFlds[reader.header[i]]; !ok {
feed.TripsAddFlds[reader.header[i]] = make(map[string]string)
}
feed.TripsAddFlds[reader.header[i]][tripId] = record[i]
}
}
}
feed.ColOrders.Trips = append([]string(nil), reader.header...)
return e
}
func (feed *Feed) reserveShapes(path string, prefix string) (err error) {
if feed.opts.DropShapes {
return
}
file, e := feed.getFile(path, "shapes.txt")
if e != nil {
return nil
}
reader := NewCsvParser(file, feed.opts.DropErroneous, feed.opts.AssumeCleanCsv && !feed.opts.KeepAddFlds)
defer func() {
if r := recover(); r != nil {
err = ParseError{"shapes.txt", reader.Curline, r.(error).Error()}
}
}()
var record []string
flds := ShapeFields{
shapeId: reader.headeridx.GetFldId("shape_id", -1),
shapeDistTraveled: reader.headeridx.GetFldId("shape_dist_traveled", -2),
shapePtLat: reader.headeridx.GetFldId("shape_pt_lat", -3),
shapePtLon: reader.headeridx.GetFldId("shape_pt_lon", -4),
shapePtSequence: reader.headeridx.GetFldId("shape_pt_sequence", -5),
}
for record = reader.ParseCsvLine(); record != nil; record = reader.ParseCsvLine() {
e := reserveShapePoint(record, flds, feed, prefix)
if e != nil {
if feed.opts.DropErroneous {