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Big LedisDB refactoring

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This commit is contained in:
Deluan 2016-02-28 22:56:24 -05:00
parent 515279606a
commit 49b512fc9c
11 changed files with 105 additions and 123 deletions
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2
conf/app.conf
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@ -8,7 +8,7 @@ apiVersion = 1.0.0
ignoredArticles="The El La Los Las Le Les Os As O A"
indexGroups=A B C D E F G H I J K L M N O P Q R S T U V W X-Z(XYZ)
musicFolder=./iTunesFull.xml
musicFolder=./iTunes.xml
user=deluan
password=wordpass
dbPath = ./devDb

25
models/album.go
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@ -3,32 +3,9 @@ package models
type Album struct {
Id string
Name string
ArtistId string
ArtistId string `parent:"artist"`
CoverArtPath string
Year int
Compilation bool
Rating int
MediaFiles map[string]bool
}
func (a *Album) AdMediaFiles(mfs ...*MediaFile) {
for _, mf := range mfs {
a.MediaFiles[mf.Id] = true
}
}
func (a *Album) AddMediaFiles(mfs ...interface{}) {
if a.MediaFiles == nil {
a.MediaFiles = make(map[string]bool)
}
for _, v := range mfs {
switch v := v.(type) {
case *MediaFile:
a.MediaFiles[v.Id] = true
case map[string]bool:
for k, _ := range v {
a.MediaFiles[k] = true
}
}
}
}

16
models/artist.go
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@ -20,20 +20,4 @@ func NoArticle(name string) string {
}
}
return name
}
func (a *Artist) AddAlbums(albums ...interface{}) {
if a.Albums == nil {
a.Albums = make(map[string]bool)
}
for _, v := range albums {
switch v := v.(type) {
case *Album:
a.Albums[v.Id] = true
case map[string]bool:
for k, _ := range v {
a.Albums[k] = true
}
}
}
}

1
models/media_file.go
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@ -11,6 +11,7 @@ type MediaFile struct {
Album string
Artist string
AlbumArtist string
AlbumId string `parent:"album"`
Compilation bool
CreatedAt time.Time
UpdatedAt time.Time

8
repositories/album_repository.go
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@ -10,20 +10,20 @@ type Album struct {
func NewAlbumRepository() *Album {
r := &Album{}
r.key = "album"
r.table = "album"
return r
}
func (r *Album) Put(m *models.Album) (*models.Album, error) {
func (r *Album) Put(m *models.Album) error {
if m.Id == "" {
m.Id = r.NewId(m.Name)
}
return m, r.saveOrUpdate(m.Id, m)
return r.saveOrUpdate(m.Id, m)
}
func (r *Album) Get(id string) (*models.Album, error) {
rec := &models.Album{}
err := readStruct(r.key, id, rec)
err := r.loadEntity(id, rec)
return rec, err
}

8
repositories/artist_repository.go
View File

@ -10,20 +10,20 @@ type Artist struct {
func NewArtistRepository() *Artist {
r := &Artist{}
r.key = "artist"
r.table = "artist"
return r
}
func (r *Artist) Put(m *models.Artist) (*models.Artist, error) { // TODO Return only error
func (r *Artist) Put(m *models.Artist) error {
if m.Id == "" {
m.Id = r.NewId(m.Name)
}
return m, r.saveOrUpdate(m.Id, m)
return r.saveOrUpdate(m.Id, m)
}
func (r *Artist) Get(id string) (*models.Artist, error) {
rec := &models.Artist{}
err := readStruct(r.key, id, rec)
err := r.loadEntity(id, rec)
return rec, err
}

82
repositories/base_repository.go
View File

@ -4,26 +4,100 @@ import (
"fmt"
"crypto/md5"
"strings"
"github.com/deluan/gosonic/utils"
"encoding/json"
"reflect"
)
type BaseRepository struct {
key string // TODO Rename to 'table'
table string
}
func (r *BaseRepository) NewId(fields ...string) string {
s := fmt.Sprintf("%s\\%s", strings.ToUpper(r.key), strings.Join(fields, ""))
s := fmt.Sprintf("%s\\%s", strings.ToUpper(r.table), strings.Join(fields, ""))
return fmt.Sprintf("%x", md5.Sum([]byte(s)))
}
func (r *BaseRepository) CountAll() (int, error) {
return count(r.key)
ids, err := db().SMembers([]byte(r.table + "s:all"))
return len(ids), err
}
func (r *BaseRepository) saveOrUpdate(id string, rec interface{}) error {
return saveStruct(r.key, id, rec)
return r.saveEntity(id, rec)
}
func (r *BaseRepository) Dump() {
}
func (r *BaseRepository) saveEntity(id string, entity interface{}) error {
recordPrefix := fmt.Sprintf("%s:%s:", r.table, id)
allKey := r.table + "s:all"
h, err := utils.ToMap(entity)
if err != nil {
return err
}
for f, v := range h {
key := recordPrefix + f
value, _ := json.Marshal(v)
if err := db().Set([]byte(key), value); err != nil {
return err
}
}
if _, err = db().SAdd([]byte(allKey), []byte(id)); err != nil {
return err
}
if parentTable, parentId := r.getParent(entity); parentTable != "" {
parentCollectionKey := fmt.Sprintf("%s:%s:%ss", parentTable, parentId, r.table)
_, err = db().SAdd([]byte(parentCollectionKey), []byte(id))
}
return nil
}
// TODO Optimize
func (r *BaseRepository) getParent(entity interface{}) (table string, id string) {
dt := reflect.TypeOf(entity).Elem()
for i := 0; i < dt.NumField(); i++ {
f := dt.Field(i)
table := f.Tag.Get("parent")
if table != "" {
dv := reflect.ValueOf(entity).Elem()
return table, dv.FieldByName(f.Name).String()
}
}
return "", ""
}
func (r *BaseRepository) loadEntity(id string, entity interface{}) error {
recordPrefix := fmt.Sprintf("%s:%s:", r.table, id)
h, _ := utils.ToMap(entity)
var fieldKeys = make([][]byte, len(h))
var fieldNames = make([]string, len(h))
i := 0
for k, _ := range h {
fieldNames[i] = k
fieldKeys[i] = []byte(recordPrefix + k)
i++
}
res, err := db().MGet(fieldKeys...)
if err != nil {
return err
}
var record = make(map[string]interface{}, len(res))
for i, v := range res {
var value interface{}
if err := json.Unmarshal(v, &value); err != nil {
return err
}
record[string(fieldNames[i])] = value
}
return utils.ToStruct(record, entity)
}

2
repositories/index_repository.go
View File

@ -11,7 +11,7 @@ type ArtistIndex struct {
func NewArtistIndexRepository() *ArtistIndex {
r := &ArtistIndex{}
r.key = "index"
r.table = "index"
return r
}

38
repositories/ledis_utils.go
View File

@ -2,11 +2,9 @@ package repositories
import (
"sync"
"encoding/json"
"github.com/astaxie/beego"
"github.com/siddontang/ledisdb/ledis"
"github.com/siddontang/ledisdb/config"
"github.com/deluan/gosonic/utils"
)
var (
@ -26,40 +24,4 @@ func db() *ledis.DB {
_dbInstance = instance
})
return _dbInstance
}
func saveStruct(key, id string, data interface{}) error {
h, err := utils.ToMap(data)
if err != nil {
return err
}
var fvList = make([]ledis.FVPair, len(h))
i := 0
for f, v := range h {
fvList[i].Field = []byte(f)
fvList[i].Value, _ = json.Marshal(v)
i++
}
kh := key + "_id_" + id
ks := key + "_ids"
db().SAdd([]byte(ks), []byte(id))
return db().HMset([]byte(kh), fvList...)
}
func readStruct(key, id string, rec interface{}) error {
kh := key + "_id_" + id
fvs, _ := db().HGetAll([]byte(kh))
var m = make(map[string]interface{}, len(fvs))
for _, fv := range fvs {
var v interface{}
json.Unmarshal(fv.Value, &v)
m[string(fv.Field)] = v
}
return utils.ToStruct(m, rec)
}
func count(key string) (int, error) {
ids, err := db().SMembers([]byte(key + "_ids"))
return len(ids), err
}

2
repositories/media_file_repository.go
View File

@ -10,7 +10,7 @@ type MediaFile struct {
func NewMediaFileRepository() *MediaFile {
r := &MediaFile{}
r.key = "mediafile"
r.table = "mediafile"
return r
}

44
scanner/scanner.go
View File

@ -5,8 +5,6 @@ import (
"github.com/deluan/gosonic/repositories"
"github.com/deluan/gosonic/models"
"strings"
"fmt"
"encoding/json"
)
type Scanner interface {
@ -33,10 +31,8 @@ func importLibrary(files []Track) {
var artistIndex = make(map[string]tempIndex)
for _, t := range files {
mf, album, artist := processTrack(&t)
mergeInfo(mfRepo, mf, albumRepo, album, artistRepo, artist)
fmt.Printf("%#v\n", album)
fmt.Printf("%#v\n\n", artist)
mf, album, artist := parseTrack(&t)
persist(mfRepo, mf, albumRepo, album, artistRepo, artist)
collectIndex(artist, artistIndex)
}
@ -44,14 +40,15 @@ func importLibrary(files []Track) {
beego.Error(err)
}
j,_ := json.MarshalIndent(artistIndex, "", " ")
fmt.Println(string(j))
c, _ := mfRepo.CountAll()
beego.Info("Total mediafiles in database:", c)
c, _ := artistRepo.CountAll()
beego.Info("Total Artists in database:", c)
c, _ = albumRepo.CountAll()
beego.Info("Total Albums in database:", c)
c, _ = mfRepo.CountAll()
beego.Info("Total MediaFiles in database:", c)
}
func processTrack(t *Track) (*models.MediaFile, *models.Album, *models.Artist) {
func parseTrack(t *Track) (*models.MediaFile, *models.Album, *models.Artist) {
mf := &models.MediaFile{
Id: t.Id,
Album: t.Album,
@ -77,30 +74,17 @@ func processTrack(t *Track) (*models.MediaFile, *models.Album, *models.Artist) {
return mf, album, artist
}
func mergeInfo(mfRepo *repositories.MediaFile, mf *models.MediaFile, albumRepo *repositories.Album, album *models.Album, artistRepo *repositories.Artist, artist *models.Artist) {
artist.Id = artistRepo.NewId(artist.Name)
sAlbum, err := albumRepo.GetByName(album.Name)
if err != nil {
func persist(mfRepo *repositories.MediaFile, mf *models.MediaFile, albumRepo *repositories.Album, album *models.Album, artistRepo *repositories.Artist, artist *models.Artist) {
if err := artistRepo.Put(artist); err != nil {
beego.Error(err)
}
album.ArtistId = artist.Id
album.AddMediaFiles(mf, sAlbum.MediaFiles)
sAlbum, err = albumRepo.Put(album)
if err != nil {
beego.Error(err)
}
sArtist, err := artistRepo.GetByName(artist.Name)
if err != nil {
beego.Error(err)
}
artist.AddAlbums(sAlbum, sArtist.Albums)
_, err = artistRepo.Put(artist)
if err != nil {
if err := albumRepo.Put(album); err != nil {
beego.Error(err)
}
mf.AlbumId = album.Id
if err := mfRepo.Put(mf); err != nil {
beego.Error(err)
}