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add jp transit gtfs realtime data feed #27

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add jp transit gtfs realtime data feed #27

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6 changes: 5 additions & 1 deletion go.mod
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Original file line number Diff line number Diff line change
@@ -1,8 +1,12 @@
module github.com/codefornola/nola-transit-map

go 1.14
go 1.21

toolchain go1.22.6

require (
github.com/MobilityData/gtfs-realtime-bindings/golang/gtfs v1.0.0
github.com/gorilla/websocket v1.5.0
github.com/stretchr/testify v1.8.1 // indirect
google.golang.org/protobuf v1.35.1
)
9 changes: 9 additions & 0 deletions go.sum
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Original file line number Diff line number Diff line change
@@ -1,6 +1,10 @@
github.com/MobilityData/gtfs-realtime-bindings/golang/gtfs v1.0.0 h1:f4P+fVYmSIWj4b/jvbMdmrmsx/Xb+5xCpYYtVXOdKoc=
github.com/MobilityData/gtfs-realtime-bindings/golang/gtfs v1.0.0/go.mod h1:nSmbVVQSM4lp9gYvVaaTotnRxSwZXEdFnJARofg5V4g=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
Expand All @@ -12,6 +16,11 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/protobuf v1.35.1 h1:m3LfL6/Ca+fqnjnlqQXNpFPABW1UD7mjh8KO2mKFytA=
google.golang.org/protobuf v1.35.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
Expand Down
63 changes: 61 additions & 2 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -9,8 +9,11 @@ import (
"net/http"
"os"
"time"
"strconv"

"github.com/gorilla/websocket"
"google.golang.org/protobuf/proto"
"github.com/MobilityData/gtfs-realtime-bindings/golang/gtfs"
)

const (
Expand Down Expand Up @@ -132,6 +135,7 @@ type Config struct {

type Scraper struct {
client *http.Client
client_jp *http.Client
config *Config
}

Expand All @@ -155,17 +159,24 @@ func NewScraper() *Scraper {
TLSHandshakeTimeout: 0 * time.Second,
}
client := &http.Client{Transport: tr}
client_jp := &http.Client{Transport: tr}
return &Scraper{
client,
client_jp,
config,
}
}

func (s *Scraper) Start(vs chan []Vehicle) {
for {
result := s.fetch()
log.Printf("Found %d vehicles\n", len(result.Vehicles))
vs <- result.Vehicles
log.Printf("Found %d RTA vehicles\n", len(result.Vehicles))

result_jp := s.fetch_jp()
log.Printf("Found %d JP vehicles\n", len(result_jp.Vehicles))

vs <- append(result.Vehicles, result_jp.Vehicles...)

time.Sleep(s.config.Interval)
}
}
Expand All @@ -192,8 +203,56 @@ func (v *Scraper) fetch() *BustimeData {
return &result.Data
}

func (v *Scraper) fetch_jp() *BustimeData {
url := "https://jetapp.jptransit.org/gtfsrt/vehicles"
resp, err := v.client_jp.Get(url)
if err != nil {
log.Printf("error fetching jptransit data: %s [firewall blocking VPN address?]", err)
result := &BustimeResponse{}
return &result.Data
}
if resp.Body != nil {
defer resp.Body.Close()
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}

feed := gtfs.FeedMessage{}
err = proto.Unmarshal(body, &feed)
if err != nil {
log.Fatal(err)
}

result := &BustimeData{}
result.Vehicles = []Vehicle{}

for _, entity := range feed.Entity {
vehicle := entity.GetVehicle()
position := vehicle.GetPosition()
route := vehicle.GetTrip().GetRouteId()
if (len(route) == 0) {
route = "U"
}

v := Vehicle{}
v.Vid = vehicle.GetVehicle().GetId()
v.Tmstmp = VehicleTimestamp{}
v.Tmstmp.Time = time.Unix(int64(vehicle.GetTimestamp()), 0)
v.Lat = float64(position.GetLatitude())
v.Lon = float64(position.GetLongitude())
v.Hdg = strconv.FormatFloat(float64(position.GetBearing()), 'f', -1, 64)
v.Rt = route
result.Vehicles = append(result.Vehicles, v)
}

return result
}

func (v *Scraper) Close() {
v.client.CloseIdleConnections()
v.client_jp.CloseIdleConnections()
}

type VehicleChannel = chan []Vehicle
Expand Down