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duplicates.go
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/
duplicates.go
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// Copyright © 2023 National Library of Norway
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package importutil
import (
"context"
"encoding/json"
"io"
configV1 "github.com/nlnwa/veidemann-api/go/config/v1"
"github.com/rs/zerolog/log"
)
type DuplicateReportRecord struct {
Name string
Records []Record
}
type Record struct {
Id string
}
type DuplicateKindReporter struct {
*ImportDb
}
func (d DuplicateKindReporter) Report(w io.Writer) error {
var nrOfDuplicateKeys int32
var nrOfDuplicateValues int32
var rec DuplicateReportRecord
checkDuplicate := func(k []byte, v []byte) {
ids := d.bytesToStringArray(v)
// If there is only one id, it is not a duplicate
if len(ids) < 2 {
return
}
nrOfDuplicateKeys++
nrOfDuplicateValues += int32(len(ids))
rec.Name = string(k)
rec.Records = rec.Records[:0]
for _, id := range ids {
rec.Records = append(rec.Records, Record{Id: id})
}
l := log.With().Str("key", rec.Name).Logger()
b, err := json.Marshal(&rec)
if err != nil {
l.Error().Err(err).Msg("failed to marshal record to json")
return
}
if _, err := w.Write(b); err != nil {
l.Error().Err(err).Msg("failed to write record")
return
}
if _, err := w.Write([]byte{'\n'}); err != nil {
log.Error().Err(err).Msg("failed to write record")
return
}
}
err := d.Iterate(checkDuplicate)
if err != nil {
return err
}
log.Info().Int32("duplicate keys", nrOfDuplicateKeys).Int32("duplicate values", nrOfDuplicateValues).Msg("Duplicate report completed")
return nil
}
type SeedDuplicateReportRecord struct {
Host string
Seeds []SeedRecord
}
type SeedRecord struct {
SeedId string
Uri string
SeedDescription string
EntityId string
EntityName string
EntityDescription string
}
type SeedReporter struct {
*ImportDb
Client configV1.ConfigClient
}
func (d SeedReporter) Report(w io.Writer) error {
var nrOfDuplicateKeys int32
var nrOfDuplicateValues int32
rec := &SeedDuplicateReportRecord{}
checkDuplicate := func(k []byte, v []byte) {
ids := d.bytesToStringArray(v)
// If there is only one id, it is not a duplicate
if len(ids) < 2 {
return
}
nrOfDuplicateKeys++
nrOfDuplicateValues += int32(len(ids))
rec.Host = string(k)
// Avoid memory allocation by reusing the same slice
rec.Seeds = rec.Seeds[:0]
l := log.With().Str("key", rec.Host).Logger()
for _, id := range ids {
l = l.With().Str("id", id).Logger()
ref := &configV1.ConfigRef{Id: id, Kind: configV1.Kind_seed}
seed, err := d.Client.GetConfigObject(context.Background(), ref)
if err != nil {
l.Error().Err(err).Msg("failed to get seed from Veidemann")
continue
}
sr := SeedRecord{
SeedId: seed.GetId(),
Uri: seed.GetMeta().GetName(),
SeedDescription: seed.GetMeta().GetDescription(),
EntityId: seed.GetSeed().GetEntityRef().GetId(),
}
rec.Seeds = append(rec.Seeds, sr)
entity, err := d.Client.GetConfigObject(context.Background(), seed.GetSeed().GetEntityRef())
if err != nil {
l.Warn().Err(err).Str("key", rec.Host).Str("entityId", sr.EntityId).Msg("failed to get entity from Veidemann")
continue
}
sr.EntityName = entity.GetMeta().GetName()
sr.EntityDescription = entity.GetMeta().GetDescription()
}
b, err := json.Marshal(rec)
if err != nil {
l.Error().Err(err).Msg("failed to marshal record to json")
return
}
if _, err := w.Write(b); err != nil {
l.Error().Err(err).Msg("failed to write record")
return
}
if _, err := w.Write([]byte{'\n'}); err != nil {
l.Error().Err(err).Msg("failed to write record")
return
}
}
err := d.Iterate(checkDuplicate)
if err != nil {
return err
}
log.Info().Int32("duplicate keys", nrOfDuplicateKeys).Int32("duplicate values", nrOfDuplicateValues).Msg("Duplicate report completed")
return nil
}