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Lots more work on CIF processing

This commit is contained in:
Fred Boniface 2024-04-04 22:39:09 +01:00
parent 2fdb840644
commit adf745aa61
8 changed files with 274 additions and 151 deletions
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75
src/cif/check.go
View File

@ -9,54 +9,6 @@ import (
"go.uber.org/zap"
)
// REWRITING CifCheck into CheckCif (at bottom of file), CifCheck and parseMetadata become redundant
// Loads CifMetadata and passes it to parseMetadata, this function is what you should call to initiate the CifUpdate process.
func CifCheck(cfg *helpers.Configuration) error {
log.Msg.Debug("Checking age of CIF Data")
metadata, err := dbAccess.GetCifMetadata()
if err != nil {
return err
}
err = parseMetadata(metadata, cfg)
if err != nil {
log.Msg.Error("Error updating CIF Data", zap.Error(err))
return err
}
return nil
}
// Requests a full update if no metadata exists, or a daily update if metadata does exist.
// The daily update function does further metadata parsing to determine what exactly needs downloading.
func parseMetadata(metadata *dbAccess.CifMetadata, cfg *helpers.Configuration) error {
if metadata == nil {
log.Msg.Info("No metadata, creating Timetable data")
newMeta, err := runFullUpdate(cfg)
if err != nil {
return err
}
ok := dbAccess.PutCifMetadata(*newMeta)
if !ok {
log.Msg.Error("CIF Data updated but Metadata Update failed")
}
return nil
}
log.Msg.Debug("Requesting CIF Data Update")
// When testing done, this function returns newMetadata which needs putting into DB
_, err := runUpdate(metadata, cfg)
if err != nil {
return err
}
//ok := dbAccess.PutCifMetadata(*newMeta)
//if !ok {
// log.Msg.Error("CIF Data updated but Metadata Update failed")
//}
return nil
}
// Checks if the CIF Data needs updating, and what type of update is needed (Full/Partial) and if partial
// what days data needs updating, then calls an update function to handle the update.
func CheckCif(cfg *helpers.Configuration) {
@ -75,12 +27,12 @@ func CheckCif(cfg *helpers.Configuration) {
return
}
// If no metadata is found in DB, presume no CIF data exists
if metadata == nil {
log.Msg.Info("Full CIF download required")
err := runCifFullDownload(cfg)
if err != nil {
log.Msg.Error("Unable to run full CIF Update")
return
log.Msg.Error("Unable to run full CIF Update", zap.Error(err))
}
return
}
@ -91,8 +43,25 @@ func CheckCif(cfg *helpers.Configuration) {
return
}
//
// Check how many days since last update, if more than 5, run full update, else run update
daysSinceLastUpdate := howManyDaysAgo(metadata.LastUpdate)
if daysSinceLastUpdate > 5 {
log.Msg.Info("Full CIF download required")
err := runCifFullDownload(cfg)
if err != nil {
log.Msg.Error("Unable to run full CIF Update", zap.Error(err))
}
return
}
// Here I need to determine which days I need to update CIF data for, then pass to an appropriate function:
// newMetadata, err := runCifUpdate(days []time.Time, cfg)
daysToUpdate := generateUpdateDays(daysSinceLastUpdate)
// Run the update
log.Msg.Info("CIF Update required", zap.Any("days to update", daysToUpdate))
err = runCifUpdateDownload(cfg, metadata, daysToUpdate)
if err != nil {
log.Msg.Error("Unable to run CIF update", zap.Error(err))
}
return
}

17
src/cif/helpers.go
View File

@ -51,3 +51,20 @@ func howManyDaysAgo(t time.Time) int {
days := int(diff.Hours() / 24)
return days
}
// Generates a slice of time.Time values representing which days files need downloading
func generateUpdateDays(days int) []time.Time {
var updateDays []time.Time
for i := 0; i < days; i++ {
day := time.Now().Add(-time.Duration(i) * 24 * time.Hour)
updateDays = append(updateDays, day)
}
// Reverse slice to ensure chronological order
for i, j := 0, len(updateDays)-1; i < j; i, j = i+1, j-1 {
updateDays[i], updateDays[j] = updateDays[j], updateDays[i]
}
return updateDays
}

73
src/cif/helpers_test.go
View File

@ -17,3 +17,76 @@ func TestIsSameDay(t *testing.T) {
t.Errorf("Error in isSameDay(notToday). Expected false, got true.")
}
}
func TestHowManyDaysAgo(t *testing.T) {
testCases := []struct {
input time.Time
expected int
}{
{time.Now(), 0}, // Today
{time.Now().Add(-24 * time.Hour), 1}, // Yesterday
{time.Now().Add(-48 * time.Hour), 2}, // Ereyesterday
{time.Now().Add(24 * time.Hour), -1}, // Tomorrow
{time.Now().Add(48 * time.Hour), -2}, // Overmorrow
}
for _, tc := range testCases {
result := howManyDaysAgo(tc.input)
if result != tc.expected {
t.Errorf("For input %v, expected %d but got %d", tc.input, tc.expected, result)
}
}
}
func TestGetDayString(t *testing.T) {
testCases := []struct {
input time.Time
expected string
}{ // Note that the test times are in UTC, but days are checked in Europe/London
{time.Date(2024, time.April, 7, 0, 0, 0, 0, time.UTC), "sun"},
{time.Date(2024, time.April, 4, 21, 0, 0, 0, time.UTC), "thu"},
{time.Date(2001, time.September, 11, 12, 46, 0, 0, time.UTC), "tue"},
}
for _, tc := range testCases {
result := getDayString(tc.input)
if result != tc.expected {
t.Errorf("For input %v, expected %s, but got %s", tc.input, tc.expected, result)
}
}
}
func TestGenerateUpdateDays(t *testing.T) {
testCases := []struct {
days int
expected []time.Time
}{
{1, []time.Time{time.Now()}},
{2, []time.Time{time.Now().Add(-24 * time.Hour), time.Now()}},
{4, []time.Time{time.Now().Add(-72 * time.Hour),
time.Now().Add(-48 * time.Hour),
time.Now().Add(-24 * time.Hour),
time.Now(),
}},
}
for _, tc := range testCases {
result := generateUpdateDays(tc.days)
if len(result) != len(tc.expected) {
t.Errorf("For %d days, expected %v, but got %v", tc.days, tc.expected, result)
continue
}
for i := range result {
if !isSameDate(result[i], tc.expected[i]) {
t.Errorf("For %d days, expected %v, but got %v", tc.days, tc.expected, result)
}
}
}
}
// Checks if two time values have the same year, month and day.
func isSameDate(t1, t2 time.Time) bool {
return t1.Year() == t2.Year() && t1.Month() == t2.Month() && t1.Day() == t2.Day()
}

105
src/cif/parse_test.go Normal file
View File

@ -0,0 +1,105 @@
package cif
import (
"testing"
"time"
"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
)
func TestParseCifData(t *testing.T) {
testCases := []struct {
name string
input []byte
expected *parsedData
}
}
func returnParsedData() *parsedData {
var parsed = {
name: "Valid JSON Data 1",
input: []byte(`
{"JsonTimetableV1":{"classification":"public","timestamp":1711227636,"owner":"Network Rail","Sender":{"organisation":"Rockshore","application":"NTROD","component":"SCHEDULE"},"Metadata":{"type":"update","sequence":4307}}}
{"JsonAssociationV1":{"transaction_type":"Create","main_train_uid":"L65283","assoc_train_uid":"L65245","assoc_start_date":"2023-12-11T00:00:00Z","assoc_end_date":"2024-03-28T00:00:00Z","assoc_days":"1111000","category":" ","date_indicator":" ","location":"RDNGSTN","base_location_suffix":null,"assoc_location_suffix":null,"diagram_type":"T","CIF_stp_indicator":"C"}}
{"JsonAssociationV1":{"transaction_type":"Delete","main_train_uid":"L65283","assoc_train_uid":"L65245","assoc_start_date":"2024-03-18T00:00:00Z","location":"RDNGSTN","base_location_suffix":null,"diagram_type":"T","CIF_stp_indicator":"C"}}
{"JsonScheduleV1":{"CIF_stp_indicator":"O","CIF_train_uid":"C25513","schedule_start_date":"2024-03-23","transaction_type":"Delete"}}
{"JsonScheduleV1":{"CIF_bank_holiday_running":null,"CIF_stp_indicator":"O","CIF_train_uid":"Y04345","applicable_timetable":"Y","atoc_code":"SW","new_schedule_segment":{"traction_class":"","uic_code":""},"schedule_days_runs":"0000001","schedule_end_date":"2024-05-19","schedule_segment":{"signalling_id":"5A20","CIF_train_category":"EE","CIF_headcode":"00","CIF_course_indicator":1,"CIF_train_service_code":"24676004","CIF_business_sector":"??","CIF_power_type":"EMU","CIF_timing_load":null,"CIF_speed":"100","CIF_operating_characteristics":"D","CIF_train_class":null,"CIF_sleepers":null,"CIF_reservations":null,"CIF_connection_indicator":null,"CIF_catering_code":null,"CIF_service_branding":"","schedule_location":[{"location_type":"LO","record_identity":"LO","tiploc_code":"FARNHMD","tiploc_instance":null,"departure":"0721","public_departure":null,"platform":null,"line":null,"engineering_allowance":null,"pathing_allowance":null,"performance_allowance":null},{"location_type":"LT","record_identity":"LT","tiploc_code":"FARNHAM","tiploc_instance":null,"platform":"1","arrival":"0729","public_arrival":null,"path":null}]},"schedule_start_date":"2024-05-19","train_status":"T","transaction_type":"Create"}}
{"EOF":true}
`),
expected: &parsedData{
header: upstreamApi.JsonTimetableV1{
Classification: "public",
Timestamp: 1711227636,
Owner: "Network Rail",
Sender: upstreamApi.TimetableSender{
Organisation: "Rockshore",
Application: "NTROD",
Component: "SCHEDULE",
},
Metadata: upstreamApi.TimetableMetadata{
Type: "update",
Sequence: 4307,
},
},
assoc: []upstreamApi.JsonAssociationV1{
TransactionType: "Create",
MainTrainUid: "L65283",
AssocTrainUid: "L65245",
AssocStartDate: time.Date(2023, time.December, 11, 0, 0, 0, 0, time.UTC),
AssocEndDate: time.Date(2024, time.March, 28, 0, 0, 0, 0, time.UTC),
AssocDays: "1111000",
Location: "RDNGSTN",
DiagramType: "T",
CifStpIndicator: "C",
}, {
TransactionType: "Delete",
MainTrainUid: "L65283",
AssocTrainUid: "L65245",
AssocStartDate: time.Date(2024, time.March, 18, 0, 0, 0, 0, time.UTC),
Location: "RDNGSTN",
DiagramType: "T",
CifStpIndicator: "C",
},
sched: []upstreamApi.JsonScheduleV1{
CifStpIndicator: "O",
CifTrainUid: "C25513",
ScheduleStartDate: "2024-03-23",
TransactionType: "Delete",
}, {
CifStpIndicator: "O",
CifTrainUid: "Y04345",
ApplicableTimetable: "Y",
AtocCode: "SW",
NewScheduleSegment: upstreamApi.CifNewScheduleSegment{},
ScheduleDaysRun: "0000001",
ScheduleEndDate: "2024-05-19",
ScheduleSegment: upstreamApi.CifScheduleSegment{
SignallingId: "5A20",
CifTrainCategory: "EE",
CifHeadcode: "OO",
CifCourseIndicator: 1,
CifTrainServiceCode: "24676004",
CifBusinessSector: "??",
CifPowerType: "EMU",
CifSpeed: "100",
CifOperatingCharacteristics: "D",
ScheduleLocation: []upstreamApi.CifScheduleLocation{
LocationType: "LO",
RecordIdentity: "LO",
TiplocCode: "FARNHMD",
Departure: "0721",
}, {
LocationType: "LT",
RecordIdentity: "LT",
TiplocCode: "FARNHAM",
Platform: "1",
Arrival: "0729",
},
},
ScheduleStartDate: "2024-05-19",
TrainStatus: "T",
TransactionType: "Create",
},
},
}
}

21
src/cif/process.go
View File

@ -1,21 +1,6 @@
package cif
import (
"errors"
"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
)
// Processes all data in the schedule segment of 'data', interacts with the database and returns new metadata
func processCifData(metadata *dbAccess.CifMetadata, data *parsedData) (*dbAccess.CifMetadata, error) {
if data == nil {
err := errors.New("data is not defined")
return nil, err
}
if metadata == nil {
err := errors.New("metadata is not defined")
return nil, err
}
return nil, nil
// Processes parsed CIF data and applies the data to the database
func processParsedCif(data *parsedData) error {
return nil
}

119
src/cif/update.go
View File

@ -1,7 +1,6 @@
package cif
import (
"sort"
"time"
"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
@ -11,105 +10,79 @@ import (
"go.uber.org/zap"
)
// Runs a full update of the CIF Data, discarding any existing data and returns a new metadata struct
func runFullUpdate(cfg *helpers.Configuration) (*dbAccess.CifMetadata, error) {
log.Msg.Warn("All existing timetable data will be deleted")
// Replaces all existing CIF Data with a new download
func runCifFullDownload(cfg *helpers.Configuration) error {
log.Msg.Info("Downloading all CIF Data")
// Download CIF Data file
url, err := getUpdateUrl("full")
if err != nil {
log.Msg.Error("Unable to get update URL", zap.Error(err))
return nil, err
log.Msg.Error("Error getting download URL", zap.Error(err))
}
fullCifData, err := nrod.NrodDownload(url, cfg)
data, err := nrod.NrodDownload(url, cfg)
if err != nil {
log.Msg.Error("Unable to get CIF Data", zap.Error(err))
return nil, err
log.Msg.Error("Error downloading CIF data", zap.Error(err))
}
log.Msg.Debug("CIF Data Downloaded", zap.ByteString("CIF Data", fullCifData))
// Parse CIF file
parsed, err := parseCifData(data)
if err != nil {
log.Msg.Error("Error parsing CIF data", zap.Error(err))
return err
}
// I now need to define a processing function and ensure a valid type exists, then I can pass that type to a CIF Put Full function
// which will handle placing the data into the database
// Drop timetable collection
dbAccess.DropCollection(dbAccess.TimetableCollection)
return nil, nil
// Process CIF file
err = processParsedCif(parsed)
if err != nil {
log.Msg.Error("Error processing CIF data", zap.Error(err))
}
// Generate & Write metadata
return nil
}
// Runs the daily update for CIF Data, can handle up to five days updates at once.
func runUpdate(metadata *dbAccess.CifMetadata, cfg *helpers.Configuration) (*dbAccess.CifMetadata, error) {
// Do not run update if last update was on same day
if isSameToday(metadata.LastUpdate) {
log.Msg.Info("No CIF Update Required", zap.Time("Last update", metadata.LastUpdate))
return nil, nil
}
// Runs a CIF Update for up to five days
func runCifUpdateDownload(cfg *helpers.Configuration, metadata *dbAccess.CifMetadata, days []time.Time) error {
log.Msg.Info("Downloading CIF Updates")
// Do not run update before 0600 as todays data will not be available
if time.Now().Hour() < 6 {
log.Msg.Info("Too early to update CIF Data")
return nil, nil
}
// Loop over dates
for _, time := range days {
log.Msg.Info("Downloading CIF File", zap.Time("CIF Data from", time))
// Check how many days ago last update was
lastUpateDays := howManyDaysAgo(metadata.LastUpdate)
if lastUpateDays > 5 {
log.Msg.Warn("CIF Data is more than five days old. Running Full Update")
newMeta, err := runFullUpdate(cfg)
// Download CIF data file
data, err := fetchUpdate(time, cfg)
if err != nil {
log.Msg.Error("CIF Update failed", zap.Error(err))
return nil, err
log.Msg.Error("Error fetching CIF update", zap.Error(err))
return err
}
return newMeta, nil
}
// Create a slice containing which dates need updating
firstUpdate := time.Now().In(time.UTC).AddDate(0, 0, -lastUpateDays)
finalUpdate := time.Now().In(time.UTC)
var dates []time.Time
for d := firstUpdate; d.Before(finalUpdate) || d.Equal(finalUpdate); d = d.AddDate(0, 0, 1) {
dates = append(dates, d)
}
sort.Slice(dates, func(i, j int) bool {
return dates[i].Before(dates[j])
})
log.Msg.Info("Updating CIF Data", zap.Any("dates to update", dates))
// Iterate over each date, fetching then parsing the data
for _, date := range dates {
data, err := fetchUpdate(date, cfg)
// Parse CIF file
parsed, err := parseCifData(data)
if err != nil {
log.Msg.Error("Error fetching data", zap.Time("date", date))
continue
} // parseCifData function needs writing
parsedData, err := parseCifData(data)
if err != nil {
log.Msg.Error("Error parsing data", zap.Time("date", date))
log.Msg.Error("Error parsing CIF data", zap.Error(err))
return err
}
if parsedData == nil { // TEMPORARY DEVELOPMENT CHECK
log.Msg.Error("No data parsed")
return nil, nil
// Check metadata sequence - Handle a metadata sequence error. Probably by deleting metadata so next update triggers full download
//// I need to check what the sequence looks like in a full download first.
// Process CIF file
// Generate & Write metadata
}
// Process data (manages the database interactions and >>returns the new metadata)
_, err = processCifData(metadata, parsedData)
if err != nil {
log.Msg.Error("Error processing CIF Data", zap.Error(err))
}
log.Msg.Info("CIF Data updated", zap.Time("date", date))
}
return nil, nil //TEMPORARY
return nil
}
// Fetches CIF Updates for a given day
// Wraps nrod.NrodDownload() into a function which can handle downloading data for a given day
func fetchUpdate(t time.Time, cfg *helpers.Configuration) ([]byte, error) {
url, err := getUpdateUrl("daily")
if err != nil {
return nil, err
}
// Append day string to URL
url = url + getDayString(t)
downloadedData, err := nrod.NrodDownload(url, cfg)

6
src/dbAccess/client.go
View File

@ -12,12 +12,6 @@ import (
"go.mongodb.org/mongo-driver/mongo/options"
)
const databaseName string = "owlboard"
const CorpusCollection string = "corpus"
const StationsCollection string = "stations"
const metaCollection string = "meta"
const TimetableCollection string = "timetable"
// Provide the DB Connection to other functions
var MongoClient (*mongo.Client)

7
src/dbAccess/contants.go Normal file
View File

@ -0,0 +1,7 @@
package dbAccess
const databaseName string = "owlboard"
const CorpusCollection string = "corpus"
const StationsCollection string = "stations"
const metaCollection string = "meta"
const TimetableCollection string = "timetable"