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storage.go
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storage.go
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package storage
import (
"errors"
"fmt"
"os"
"github.com/globalsign/mgo"
//"github.com/globalsign/mgo/bson"
//"os"
//"regexp"
log "github.com/sirupsen/logrus"
)
const (
MGO_DB_NAME = "gameServer"
UserInfo_COLLECTION = "UserInfo"
RegistInput_COLLECTION = "RegistInput"
)
var (
_MGO_ADDR string = ""
_MGO_USER string = ""
_MGO_PASS string = ""
)
var MgoDb *MongoDb = &MongoDb{}
func init() {
MgoDb.Init(MGO_DB_NAME, UserInfo_COLLECTION, RegistInput_COLLECTION)
}
type Db interface {
Init(string, ...string)
Save(string, interface{}) bool
Update(string, interface{}, interface{}) bool
Delete(string, interface{}) bool
Find(string, interface{}) *mgo.Iter
}
type MongoDb struct {
Session *mgo.Session
Collections map[string]*mgo.Collection
}
type FileStore struct {
FileName string
Path string
}
type MgoError struct {
Op string
Err error
}
func (e *MgoError) Error() string {
return e.Op + ":" + e.Err.Error()
}
func ReadMgoSettingFromEnv() {
_MGO_PASS = os.Getenv("MGO_PASS")
_MGO_USER = os.Getenv("MGO_USER")
_MGO_ADDR = os.Getenv("MGO_ADDR")
}
func (m *MongoDb) Init(dbName string, collectionNames ...string) {
ReadMgoSettingFromEnv()
err := error(nil)
defer func() {
if r := recover(); r != nil {
err := fmt.Errorf("%v", r)
fmt.Printf("%T \n\r", err)
a := &MgoError{"mgo:", errors.New("MgoInit")}
log.Warn("", a.Error())
//panic("Please open mangodb server")
}
}()
m.Collections = make(map[string]*mgo.Collection)
m.Session, err = mgo.Dial(_MGO_ADDR)
if err != nil {
fmt.Println("mongodb connecting error :", err)
}
if err := m.Session.DB(dbName).Login(_MGO_USER, _MGO_PASS); err != nil {
log.Fatal("Mgo connect error:", err, "/n Do you set env MGO_USER and MGO_PASS? or Do you create a User?")
}
for _, collectionName := range collectionNames {
m.Collections[collectionName] = m.Session.DB(dbName).C(collectionName)
fmt.Println(collectionName, " is register.")
}
}
func (m *MongoDb) Save(collectionName string, data interface{}) bool {
if _, ok := m.Collections[collectionName]; !ok {
return false
}
m.Collections[collectionName].Insert(data)
return true
}
func (m *MongoDb) Find(collectionName string, query interface{}) *mgo.Iter {
if _, ok := m.Collections[collectionName]; !ok {
log.Warn("No such Collection", collectionName)
return nil
}
iter := m.Collections[collectionName].Find(query).Iter()
return iter
}
func (m *MongoDb) Update(collectionName string, query interface{}, data interface{}) bool {
if _, ok := m.Collections[collectionName]; !ok {
return false
}
err := m.Collections[collectionName].Update(query, data)
if err != nil {
fmt.Println("db update error:", err)
return false
}
return true
}
func (m *MongoDb) Delete(collectionName string, query interface{}) bool {
if _, ok := m.Collections[collectionName]; !ok {
return false
}
changelog, err := m.Collections[collectionName].RemoveAll(query)
fmt.Println(changelog, err)
if err != nil {
return false
}
return true
}