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validation.go
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validation.go
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package dbapi
// For validating a lexicon db
import (
"database/sql"
"encoding/json"
"fmt"
"log"
"strings"
"time"
"github.com/stts-se/pronlex/lex"
"github.com/stts-se/pronlex/validation"
)
func processChunk(db *sql.DB, chunk []int64, vd validation.Validator, stats ValStats) (ValStats, error) {
q := Query{EntryIDs: chunk}
var w lex.EntrySliceWriter
tx, err := db.Begin()
defer tx.Commit()
if err != nil {
tx.Rollback()
return stats, fmt.Errorf("failed to initialize transaction : %v", err)
}
err = lookUp(db, []lex.LexName{}, q, &w)
if err != nil {
tx.Rollback()
return stats, fmt.Errorf("couldn't lookup from ids : %s", err)
}
if w.Size() != len(chunk) {
tx.Rollback()
return stats, fmt.Errorf("got %d input ids, but found %d entries", len(chunk), w.Size())
}
validated, _ := vd.ValidateEntries(w.Entries)
origMap := make(map[int64]lex.Entry)
for _, orig := range w.Entries {
origMap[orig.ID] = orig
}
updated := []lex.Entry{}
for _, e := range validated {
stats.ValidatedEntries++
newVal := e.EntryValidations
oldVal := origMap[e.ID].EntryValidations
if len(newVal) == 0 && len(oldVal) == 0 {
// no change
} else {
updated = append(updated, e)
}
if len(newVal) > 0 {
stats.InvalidEntries++
for _, v := range newVal {
stats.TotalValidations++
stats.Levels[strings.ToLower(v.Level)]++
stats.Rules[strings.ToLower(v.RuleName+" ("+v.Level+")")]++
}
}
}
err = updateValidationTx(tx, updated)
if err != nil {
tx.Rollback()
return stats, fmt.Errorf("couldn't update validation : %s", err)
}
tx.Commit()
return stats, nil
}
// Validate all entries given the specified lexRef and search query. Updates validation stats in db, and returns these.
func Validate(db *sql.DB, lexNames []lex.LexName, logger Logger, vd validation.Validator, q Query) (ValStats, error) {
start := time.Now()
stats := ValStats{Levels: make(map[string]int), Rules: make(map[string]int)}
logger.Write(fmt.Sprintf("query: %v", q))
q.PageLength = 0 //todo?
q.Page = 0 //todo?
logger.Write("Fetching entries from lexicon ... ")
ids, err := lookUpIds(db, lexNames, q)
if err != nil {
return stats, fmt.Errorf("couldn't lookup for validation : %s", err)
}
total := len(ids)
stats.TotalEntries = total
stats.ValidatedEntries = 0
stats.InvalidEntries = 0
stats.TotalValidations = 0
logger.Write(fmt.Sprintf("Found %d entries", total))
n := 0
chunkSize := 500
var chunk []int64
for _, id := range ids {
n = n + 1
chunk = append(chunk, id)
if n%chunkSize == 0 {
stats, err = processChunk(db, chunk, vd, stats)
if err != nil {
return stats, err
}
chunk = []int64{}
}
if n%10 == 0 {
js, err := json.Marshal(stats)
if err != nil {
return stats, fmt.Errorf("couldn't marshal validation stats : %s", err)
}
msg := fmt.Sprintf("%s", js)
logger.Write(msg)
}
}
if len(chunk) > 0 {
stats, err = processChunk(db, chunk, vd, stats)
if err != nil {
return stats, err
}
//chunk = []int64{}
}
end := time.Now()
log.Printf("dbapi/validation.go Validate took %v\n", end.Sub(start))
return stats, nil
}