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Update VSTP package to use processing from CIF package

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This commit is contained in:
Fred Boniface 2024-04-15 20:03:48 +01:00
parent edbfbac23c
commit ba8e4e4c72
13 changed files with 103 additions and 270 deletions
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12
cif/parse.go
View File

@ -11,16 +11,16 @@ import (
)
// Accepts the CIF data as a stream and outputs parsed data
func parseCifDataStream(dataStream io.ReadCloser) (*parsedData, error) {
func parseCifDataStream(dataStream io.ReadCloser) (*ParsedData, error) {
defer dataStream.Close()
log.Debug("Starting CIF Datastream parsing")
if dataStream == nil {
return nil, errors.New("unable to parse nil pointer")
}
var parsed parsedData
parsed.assoc = make([]upstreamApi.JsonAssociationV1, 0)
parsed.sched = make([]upstreamApi.JsonScheduleV1, 0)
var parsed ParsedData
parsed.Assoc = make([]upstreamApi.JsonAssociationV1, 0)
parsed.Sched = make([]upstreamApi.JsonScheduleV1, 0)
// Create JSON Decoder
decoder := json.NewDecoder(dataStream)
@ -42,7 +42,7 @@ func parseCifDataStream(dataStream io.ReadCloser) (*parsedData, error) {
log.Error("Error decoding JSONTimetableV1 object", zap.Error(err))
continue
}
parsed.header = timetable
parsed.Header = timetable
case "TiplocV1":
// This data is not used and is sourced from CORPUS
continue
@ -56,7 +56,7 @@ func parseCifDataStream(dataStream io.ReadCloser) (*parsedData, error) {
log.Error("Error decoding JSONScheduleV1 object", zap.Error(err))
continue
}
parsed.sched = append(parsed.sched, schedule)
parsed.Sched = append(parsed.Sched, schedule)
case "EOF":
log.Debug("Reached EOF")
default:

20
cif/process.go
View File

@ -9,21 +9,21 @@ import (
)
// Processes parsed CIF data and applies the data to the database
func processParsedCif(data *parsedData) error {
func ProcessParsedCif(data *ParsedData) error {
log.Debug("Starting CIF Processing")
log.Info("Processing CIF Data", zap.Int("schedule-count", len(data.sched)))
log.Info("Processing CIF Data", zap.Int("schedule-count", len(data.Sched)))
// Batch size for processing
batchSize := 250 // Needs optimising for better RAM use. 1000 ~ 5.7GB, 500 ~ 5.5GB, 750 ~ 5.2GB
// Process deletions in batches
for i := 0; i < len(data.sched); i += batchSize {
for i := 0; i < len(data.Sched); i += batchSize {
end := i + batchSize
if end > len(data.sched) {
end = len(data.sched)
if end > len(data.Sched) {
end = len(data.Sched)
}
deleteBatch := make([]*upstreamApi.JsonScheduleV1, 0)
for _, item := range data.sched[i:end] {
for _, item := range data.Sched[i:end] {
if item.TransactionType == "Delete" {
deleteItem := item
deleteBatch = append(deleteBatch, &deleteItem)
@ -39,13 +39,13 @@ func processParsedCif(data *parsedData) error {
}
// Process creations in batches
for i := 0; i < len(data.sched); i += batchSize {
for i := 0; i < len(data.Sched); i += batchSize {
end := i + batchSize
if end > len(data.sched) {
end = len(data.sched)
if end > len(data.Sched) {
end = len(data.Sched)
}
createBatch := make([]*upstreamApi.JsonScheduleV1, 0)
for _, item := range data.sched[i:end] {
for _, item := range data.Sched[i:end] {
if item.TransactionType == "Create" {
createItem := item
createBatch = append(createBatch, &createItem)

8
cif/types.go
View File

@ -6,8 +6,8 @@ import "git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
// database or external API resources should be defined in git.fjla.uk/owlboard/go-types
// Holds parsed data for processing
type parsedData struct {
header upstreamApi.JsonTimetableV1
assoc []upstreamApi.JsonAssociationV1
sched []upstreamApi.JsonScheduleV1
type ParsedData struct {
Header upstreamApi.JsonTimetableV1
Assoc []upstreamApi.JsonAssociationV1
Sched []upstreamApi.JsonScheduleV1
}

14
cif/update.go
View File

@ -13,6 +13,7 @@ import (
// Replaces all existing CIF Data with a new download
func runCifFullDownload(cfg *helpers.Configuration) error {
preTime := time.Now()
log.Info("Downloading all CIF Data")
// Download CIF Data file
@ -36,12 +37,12 @@ func runCifFullDownload(cfg *helpers.Configuration) error {
dbAccess.DropCollection(dbAccess.TimetableCollection) // I should edit this to prevent removal of VSTP entries in the database.
// Process CIF file
err = processParsedCif(parsed)
err = ProcessParsedCif(parsed)
if err != nil {
log.Error("Error processing CIF data", zap.Error(err))
}
newMeta := generateMetadata(&parsed.header)
newMeta := generateMetadata(&parsed.Header)
ok := dbAccess.PutCifMetadata(newMeta, fullUpdateType)
if !ok {
log.Warn("CIF Data updated, but metadata write failed")
@ -60,6 +61,9 @@ func runCifFullDownload(cfg *helpers.Configuration) error {
log.Info("Out of date services removed", zap.Int64("removal count", count))
}
postTime := time.Now()
updateDuration := postTime.Sub(preTime)
log.Info("Execution time", zap.Duration("duration", updateDuration))
return nil
}
@ -88,7 +92,7 @@ func runCifUpdateDownload(cfg *helpers.Configuration, metadata *dbAccess.CifMeta
// Check CIF Metadata
log.Debug("Starting metadata checks")
reason, update := checkMetadata(metadata, &parsed.header)
reason, update := checkMetadata(metadata, &parsed.Header)
if !update {
log.Warn("Update file not processed", zap.String("reason", reason))
continue
@ -97,12 +101,12 @@ func runCifUpdateDownload(cfg *helpers.Configuration, metadata *dbAccess.CifMeta
log.Info("CIF Data is suitable for processing", zap.String("reason", reason))
// Process CIF file
err = processParsedCif(parsed)
err = ProcessParsedCif(parsed)
if err != nil {
log.Error("Error processing CIF data", zap.Error(err))
}
metadata = generateMetadata(&parsed.header)
metadata = generateMetadata(&parsed.Header)
parsed = nil
}

30
dbAccess/access.go
View File

@ -10,10 +10,7 @@ import (
"go.mongodb.org/mongo-driver/mongo/options"
)
const timetableCollection string = "timetable"
// Pushes the current version of this application to the data base 'versions' collection.
// Currently uses the old name of mq-client
func PushVersionToDb() {
version := database.Version{
Target: "timetable-mgr",
@ -33,30 +30,3 @@ func PushVersionToDb() {
log.Debug("Version up to date in Database")
}
}
// Puts one item of the type `database.Service` to the database, used by the VSTP package which receives services one at a time
func PutOneService(data database.Service) bool {
coll := MongoClient.Database(databaseName).Collection(timetableCollection)
_, err := coll.InsertOne(context.TODO(), data)
if err != nil {
log.Error("Unable to insert to database: " + err.Error())
return false
}
return true
}
// Deletes one service from the database.
func DeleteOneService(data database.DeleteQuery) bool {
coll := MongoClient.Database(databaseName).Collection(timetableCollection)
var filter = bson.D{
{Key: "trainUid", Value: data.TrainUid},
{Key: "stpIndicator", Value: data.StpIndicator},
{Key: "scheduleStartDate", Value: data.ScheduleStartDate},
}
_, err := coll.DeleteOne(context.TODO(), filter)
if err != nil {
log.Error("Unable to delete service: " + err.Error())
return false
}
return true
}

14
dbAccess/cif.go
View File

@ -27,8 +27,8 @@ type CifMetadata struct {
// Fetches the CifMetadata from the database, returns nil if no metadata exists - before first initialisation for example.
func GetCifMetadata() (*CifMetadata, error) {
database := MongoClient.Database(databaseName)
collection := database.Collection(metaCollection)
database := MongoClient.Database(DatabaseName)
collection := database.Collection(MetaCollection)
filter := bson.M{"type": Doctype}
var result CifMetadata
err := collection.FindOne(context.Background(), filter).Decode(&result)
@ -46,8 +46,8 @@ func GetCifMetadata() (*CifMetadata, error) {
// Uses upsert to Insert/Update the CifMetadata in the database
func PutCifMetadata(metadata *CifMetadata, lastUpdateType string) bool {
database := MongoClient.Database(databaseName)
collection := database.Collection(metaCollection)
database := MongoClient.Database(DatabaseName)
collection := database.Collection(MetaCollection)
options := options.Update().SetUpsert(true)
filter := bson.M{"type": Doctype}
update := bson.M{
@ -86,7 +86,7 @@ func DeleteCifEntries(deletions []database.DeleteQuery) error {
log.Debug("Running deletions against database", zap.Int("count", len(deletions)))
// Prepare deletion tasks
collection := MongoClient.Database(databaseName).Collection(timetableCollection)
collection := MongoClient.Database(DatabaseName).Collection(TimetableCollection)
bulkDeletions := make([]mongo.WriteModel, 0, len(deletions))
for _, deleteQuery := range deletions {
@ -117,7 +117,7 @@ func CreateCifEntries(schedules []database.Service) error {
}
log.Debug("Running creations against database", zap.Int("count", len(schedules)))
collection := MongoClient.Database(databaseName).Collection(timetableCollection)
collection := MongoClient.Database(DatabaseName).Collection(TimetableCollection)
models := make([]mongo.WriteModel, 0, len(schedules))
@ -141,7 +141,7 @@ func RemoveOutdatedServices(cutoff time.Time) (count int64, err error) {
// Define filter
filter := bson.M{"scheduleEndDate": bson.M{"$lt": cutoff}}
collection := MongoClient.Database(databaseName).Collection(timetableCollection)
collection := MongoClient.Database(DatabaseName).Collection(TimetableCollection)
res, err := collection.DeleteMany(context.Background(), filter)
if err != nil {

8
dbAccess/common.go
View File

@ -13,7 +13,7 @@ import (
// CAUTION: Drops the collection named in collectionName
func DropCollection(collectionName string) error {
log.Info("Dropping collection", zap.String("Collection Name", collectionName))
database := MongoClient.Database(databaseName)
database := MongoClient.Database(DatabaseName)
collection := database.Collection(collectionName)
err := collection.Drop(context.Background())
@ -27,8 +27,8 @@ func DropCollection(collectionName string) error {
// Checks the update time (unix timestamp) of the collection named in collectionName, uses 'type: collection' entries in the meta collection
func CheckUpdateTime(collectionName string) (int64, error) {
database := MongoClient.Database(databaseName)
collection := database.Collection(metaCollection)
database := MongoClient.Database(DatabaseName)
collection := database.Collection(MetaCollection)
filter := bson.D{
{Key: "target", Value: collectionName},
{Key: "type", Value: "collection"},
@ -46,7 +46,7 @@ func CheckUpdateTime(collectionName string) (int64, error) {
// Sets a new update time (unix timestamp) of the collection named in collectionName. The update time is calculated within the function.
func SetUpdateTime(collectionName string) error {
log.Info("Setting update time", zap.String("collection", collectionName))
database := MongoClient.Database(databaseName)
database := MongoClient.Database(DatabaseName)
collection := database.Collection("meta")
options := options.Update().SetUpsert(true)
updateTime := time.Now().Unix()

4
dbAccess/contants.go
View File

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

4
dbAccess/corpus.go
View File

@ -8,7 +8,7 @@ import (
// Puts an array of Corpus Documents into the database
func PutManyCorpus(corpusData *[]database.CorpusEntry) error {
collection := MongoClient.Database(databaseName).Collection(CorpusCollection)
collection := MongoClient.Database(DatabaseName).Collection(CorpusCollection)
documents := convertCorpusToInterfaceSlice(corpusData)
@ -23,7 +23,7 @@ func PutManyCorpus(corpusData *[]database.CorpusEntry) error {
// Puts an array of Stations documents into the database
func PutManyStations(stationsData *[]database.StationEntry) error {
collection := MongoClient.Database(databaseName).Collection(StationsCollection)
collection := MongoClient.Database(DatabaseName).Collection(StationsCollection)
documents := convertStationsToInterfaceSlice(stationsData)

68
vstp/actions.go
View File

@ -4,52 +4,42 @@ import (
"fmt"
"git.fjla.uk/owlboard/go-types/pkg/database"
"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
"git.fjla.uk/owlboard/timetable-mgr/cif"
"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
"git.fjla.uk/owlboard/timetable-mgr/log"
)
// Decide, based on the DB Formatted message type, what action needs taking
// then either insert, or delete from the database as required
func processEntryType(entry database.Service) {
// Converts to the correct struct for database insertion, then processes accordingly
func processCifData(s *upstreamApi.JsonScheduleV1) error {
switch entry.TransactionType {
case "Create":
createEntry(entry)
case "Update":
updateEntry(entry)
case "Delete":
deleteEntry(entry)
default:
log.Warn("Unknown transaction type: " + entry.TransactionType)
if s.TransactionType == "Create" {
service, err := cif.ConvertServiceType(s, true)
if err != nil {
return err
}
// Create slice as required by CreateCifEntries()
services := []database.Service{*service}
err = dbAccess.CreateCifEntries(services)
if err != nil {
return err
}
return nil
func createEntry(entry database.Service) {
log.Info("Entry Creation requested for: " + entry.TrainUid + " - " + entry.Headcode + " - " + entry.Operator)
status := dbAccess.PutOneService(entry)
if status {
log.Info("Database entry created")
} else if s.TransactionType == "Delete" {
query := database.DeleteQuery{
TrainUid: s.CifTrainUid,
ScheduleStartDate: cif.ParseCifDate(&s.ScheduleStartDate, "start"),
StpIndicator: s.CifStpIndicator,
}
// Create slice as required by DeleteCifEntries()
queries := []database.DeleteQuery{query}
err := dbAccess.DeleteCifEntries(queries)
if err != nil {
return err
}
return nil
} else {
log.Error("Database entry failed, skipped service")
}
}
func updateEntry(entry database.Service) {
log.Warn("Entry UPDATE requested for: " + entry.TrainUid + " - " + entry.Headcode + " - " + entry.Operator)
}
func deleteEntry(entry database.Service) {
log.Info("Entry DELETE requested for: " + entry.TrainUid + " - " + entry.Headcode)
var deletionQuery = database.DeleteQuery{
TrainUid: entry.TrainUid,
ScheduleStartDate: entry.ScheduleStartDate,
StpIndicator: entry.StpIndicator,
}
status := dbAccess.DeleteOneService(deletionQuery)
if status {
log.Info("Database entry deleted")
} else {
log.Error("Database deletion failed, skipped deletion")
fmt.Printf("%+v\n", deletionQuery)
err := fmt.Errorf("unknown transaction type: %s", s.TransactionType)
return err
}
}

10
vstp/handler.go
View File

@ -11,6 +11,12 @@ var count uint64 = 0
func handle(msg *stomp.Message) {
count++
log.Info("Message received", zap.Uint64("total since startup", count))
schedule := unmarshalData(string(msg.Body))
processEntryType(schedule)
schedule, err := unmarshalData(string(msg.Body))
if err != nil {
log.Error("Error unmarshalling VSTP Message", zap.Error(err))
}
err = processCifData(schedule)
if err != nil {
log.Error("Error processing VSTP Schedule", zap.Error(err))
}
}

157
vstp/parser.go
View File

@ -1,157 +0,0 @@
package vstp
import (
"encoding/json"
"fmt"
"strconv"
"strings"
"time"
"git.fjla.uk/owlboard/go-types/pkg/database"
"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
"git.fjla.uk/owlboard/timetable-mgr/helpers"
"git.fjla.uk/owlboard/timetable-mgr/log"
)
// Unmarshals the JSON data and runs it through the formatData() function and returns the data in a DB ready Struct
func unmarshalData(jsonData string) database.Service {
var schedule upstreamApi.MsgData
err := json.Unmarshal([]byte(jsonData), &schedule)
if err != nil {
log.Error("Unable to unmarshal message body: " + err.Error())
//return err
}
log.Debug("Unmarshalling Complete")
if schedule.Data.CIFMsg.ScheduleSegment == nil {
log.Warn("ScheduleSegment is nil")
} else if len(schedule.Data.CIFMsg.ScheduleSegment) == 0 {
log.Warn("ScheduleSegment is empty")
}
return formatData(&schedule.Data.CIFMsg)
}
// Transforms the upstreamApi.Schedule type into a database.Service type
func formatData(dataInput *upstreamApi.Schedule) database.Service {
log.Debug("ScheduleSegment length: " + fmt.Sprint(len(dataInput.ScheduleSegment)))
var operator, headcode, powerType string
var planSpeed int32
var stops []database.Stop
// Check that the ScheduleSegment contains data, 'Delete' messages have no ScheduleSegment
if len(dataInput.ScheduleSegment) > 0 {
operator = dataInput.ScheduleSegment[0].ATOCCode
headcode = dataInput.ScheduleSegment[0].SignallingID
powerType = dataInput.ScheduleSegment[0].CIFPowerType
planSpeed = parseSpeed(dataInput.ScheduleSegment[0].CIFSpeed)
stops = parseStops(dataInput.ScheduleSegment[0].ScheduleLocation)
}
if operator == "" {
operator = "UK"
}
service := database.Service{
TransactionType: dataInput.TransactionType,
StpIndicator: dataInput.CIFSTPIndicator,
Vstp: true,
Operator: operator,
TrainUid: dataInput.CIFTrainUID,
Headcode: headcode,
PowerType: powerType,
PlanSpeed: planSpeed,
ScheduleStartDate: parseDate(dataInput.ScheduleStartDate, false),
ScheduleEndDate: parseDate(dataInput.ScheduleEndDate, true),
DaysRun: parseDaysRun(dataInput.ScheduleDaysRun),
Stops: stops,
}
return service
}
// Uses the map provided in 'helpers' to translate incorrect CIF speeds to their correct equivalent
func parseSpeed(CIFSpeed string) int32 {
log.Debug("CIFSpeed Input: '" + CIFSpeed + "'")
if CIFSpeed == "" {
log.Debug("Speed data not provided")
return int32(0)
}
actualSpeed, exists := helpers.SpeedMap[CIFSpeed]
if !exists {
actualSpeed = CIFSpeed
}
log.Debug("Corrected Speed: " + actualSpeed)
speed, err := strconv.ParseInt(actualSpeed, 10, 32)
if err != nil {
log.Warn("Unable to parse speed: " + CIFSpeed + ", returning 0")
return int32(0)
}
return int32(speed)
}
// Converts the date string provided from the upstream API into a proper Date type and adds a time
func parseDate(dateString string, end bool) time.Time {
log.Debug("Date Input: " + dateString)
date, err := time.Parse("2006-01-02", dateString)
if err != nil {
log.Error("Unable to parse date: " + dateString)
return time.Time{}
}
var hour, minute, second, nanosecond int
location := time.UTC
if end {
hour, minute, second, nanosecond = 23, 59, 59, 0
} else {
hour, minute, second, nanosecond = 0, 0, 0, 0
}
dateWithTime := time.Date(date.Year(), date.Month(), date.Day(), hour, minute, second, nanosecond, location)
log.Debug("Parsed date: " + dateWithTime.String())
return dateWithTime
}
// Converts the binary stype 'daysRun' field into an array of short days
func parseDaysRun(daysBinary string) []string {
log.Debug("daysRun Input: " + daysBinary)
shortDays := []string{"m", "t", "w", "th", "f", "s", "su"}
var result []string
for i, digit := range daysBinary {
if digit == '1' {
result = append(result, shortDays[i])
}
}
return result
}
// Converts an array if upstreamApi.ScheduleLocation types to an array of database.Stop types
func parseStops(inputStops []upstreamApi.ScheduleLocation) []database.Stop {
var stops []database.Stop
for _, loc := range inputStops {
stop := database.Stop{
PublicDeparture: parseTimeStrings(loc.PublicDepartureTime),
WttDeparture: parseTimeStrings(loc.ScheduledDepartureTime),
PublicArrival: parseTimeStrings(loc.PublicArrivalTime),
WttArrival: parseTimeStrings(loc.ScheduledArrivalTime),
IsPublic: strings.TrimSpace(loc.PublicDepartureTime) != "" || strings.TrimSpace(loc.PublicArrivalTime) != "",
Tiploc: loc.Tiploc.Tiploc.TiplocId,
}
stops = append(stops, stop)
}
return stops
}
func parseTimeStrings(t string) string {
if t == "" {
return t
}
strippedT := strings.TrimSpace(t)
if strippedT == "" {
return ""
} else {
return strippedT[:4]
}
}

20
vstp/unmarshaller.go Normal file
View File

@ -0,0 +1,20 @@
package vstp
import (
"encoding/json"
"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
"git.fjla.uk/owlboard/timetable-mgr/log"
)
// Unmarshals the JSON data and runs it through the formatData() function and returns the data in a DB ready Struct
func unmarshalData(jsonData string) (*upstreamApi.JsonScheduleV1, error) {
var schedule upstreamApi.MsgData
err := json.Unmarshal([]byte(jsonData), &schedule)
if err != nil {
log.Error("Unable to unmarshal message body: " + err.Error())
return nil, err
}
log.Debug("Unmarshalling Complete")
return &schedule.Data.CIFMsg, nil
}