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service.go
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service.go
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// Copyright 2019 The OpenSDS Authors.
//
// 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 pkg
import (
"context"
"fmt"
"net/http"
"os"
"strconv"
"github.com/Azure/azure-storage-blob-go/azblob"
"github.com/micro/go-log"
"github.com/opensds/multi-cloud/api/pkg/utils/obs"
"github.com/opensds/multi-cloud/s3/pkg/db"
. "github.com/opensds/multi-cloud/s3/pkg/exception"
. "github.com/opensds/multi-cloud/s3/pkg/utils"
pb "github.com/opensds/multi-cloud/s3/proto"
)
type Int2String map[int32]string
type String2Int map[string]int32
// map from cloud vendor name to it's map relation relationship between internal tier to it's storage class name.
var Int2ExtTierMap map[string]*Int2String
// map from cloud vendor name to it's map relation relationship between it's storage class name to internal tier.
var Ext2IntTierMap map[string]*String2Int
// map from a specific tier to an array of tiers, that means transition can happens from the specific tier to those tiers in the array.
var TransitionMap map[int32][]int32
var SupportedClasses []pb.StorageClass
type s3Service struct{}
func getTierFromName(className string) (int32, S3Error) {
v, ok := Ext2IntTierMap[OSTYPE_OPENSDS]
if !ok {
log.Logf("get tier of storage class[%s] failed.\n", className)
return 0, InternalError
}
v2, ok := (*v)[className]
if !ok {
log.Logf("get tier of storage class[%s] failed.\n", className)
return 0, InternalError
}
log.Logf("Get tier of storage class[%s] successfully.\n", className)
return v2, NoError
}
func loadAWSDefault(i2e *map[string]*Int2String, e2i *map[string]*String2Int) {
t2n := make(Int2String)
t2n[Tier1] = AWS_STANDARD
t2n[Tier99] = AWS_STANDARD_IA
t2n[Tier999] = AWS_GLACIER
(*i2e)[OSTYPE_AWS] = &t2n
n2t := make(String2Int)
n2t[AWS_STANDARD] = Tier1
n2t[AWS_STANDARD_IA] = Tier99
n2t[AWS_GLACIER] = Tier999
(*e2i)[OSTYPE_AWS] = &n2t
}
func loadOpenSDSDefault(i2e *map[string]*Int2String, e2i *map[string]*String2Int) {
t2n := make(Int2String)
t2n[Tier1] = AWS_STANDARD
t2n[Tier99] = AWS_STANDARD_IA
t2n[Tier999] = AWS_GLACIER
(*i2e)[OSTYPE_OPENSDS] = &t2n
n2t := make(String2Int)
n2t[AWS_STANDARD] = Tier1
n2t[AWS_STANDARD_IA] = Tier99
n2t[AWS_GLACIER] = Tier999
(*e2i)[OSTYPE_OPENSDS] = &n2t
}
func loadAzureDefault(i2e *map[string]*Int2String, e2i *map[string]*String2Int) {
t2n := make(Int2String)
t2n[Tier1] = string(azblob.AccessTierHot)
t2n[Tier99] = string(azblob.AccessTierCool)
t2n[Tier999] = string(azblob.AccessTierArchive)
(*i2e)[OSTYPE_Azure] = &t2n
n2t := make(String2Int)
n2t[string(azblob.AccessTierHot)] = Tier1
n2t[string(azblob.AccessTierCool)] = Tier99
n2t[string(string(azblob.AccessTierArchive))] = Tier999
(*e2i)[OSTYPE_Azure] = &n2t
}
func loadHWDefault(i2e *map[string]*Int2String, e2i *map[string]*String2Int) {
t2n := make(Int2String)
t2n[Tier1] = string(obs.StorageClassStandard)
t2n[Tier99] = string(obs.StorageClassWarm)
t2n[Tier999] = string(obs.StorageClassCold)
(*i2e)[OSTYPE_OBS] = &t2n
n2t := make(String2Int)
n2t[string(obs.StorageClassStandard)] = Tier1
n2t[string(obs.StorageClassWarm)] = Tier99
n2t[string(obs.StorageClassCold)] = Tier999
(*e2i)[OSTYPE_OBS] = &n2t
}
func loadGCPDefault(i2e *map[string]*Int2String, e2i *map[string]*String2Int) {
t2n := make(Int2String)
t2n[Tier1] = GCS_MULTI_REGIONAL
t2n[Tier99] = GCS_NEARLINE
t2n[Tier999] = GCS_COLDLINE
(*i2e)[OSTYPE_GCS] = &t2n
n2t := make(String2Int)
n2t[GCS_MULTI_REGIONAL] = Tier1
n2t[GCS_NEARLINE] = Tier99
n2t[GCS_COLDLINE] = Tier999
(*e2i)[OSTYPE_GCS] = &n2t
}
func loadCephDefault(i2e *map[string]*Int2String, e2i *map[string]*String2Int) {
t2n := make(Int2String)
t2n[Tier1] = CEPH_STANDARD
(*i2e)[OSTYPE_CEPTH] = &t2n
n2t := make(String2Int)
n2t[CEPH_STANDARD] = Tier1
(*e2i)[OSTYPE_OBS] = &n2t
}
func loadFusionStroageDefault(i2e *map[string]*Int2String, e2i *map[string]*String2Int) {
t2n := make(Int2String)
t2n[Tier1] = string(obs.StorageClassStandard)
(*i2e)[OSTYPE_FUSIONSTORAGE] = &t2n
n2t := make(String2Int)
n2t[string(obs.StorageClassStandard)] = Tier1
(*e2i)[OSTYPE_FUSIONSTORAGE] = &n2t
}
func loadDefaultStorageClass() error {
/* Default storage class definition:
T1 T99 T999
AWS S3: STANDARD STANDARD_IA GLACIER
Azure Blob: HOT COOL ARCHIVE
HW OBS: STANDARD WARM COLD
GCP: Multi-Regional NearLine ColdLine
Ceph S3: STANDARD - -
FusinoStorage Object: STANDARD - -
*/
/* Lifecycle transition:
T1 -> T99: allowed
T1 -> T999: allowed
T99 -> T999: allowed
T99 -> T1: not allowed
T999 -> T1: not allowed
T999 -> T99: not allowed
*/
SupportedClasses = append(SupportedClasses, pb.StorageClass{Name: string(AWS_STANDARD), Tier: int32(Tier1)})
SupportedClasses = append(SupportedClasses, pb.StorageClass{Name: string(AWS_STANDARD_IA), Tier: int32(Tier99)})
SupportedClasses = append(SupportedClasses, pb.StorageClass{Name: string(AWS_GLACIER), Tier: int32(Tier999)})
log.Logf("Supported storage classes:%v\n", SupportedClasses)
Int2ExtTierMap = make(map[string]*Int2String)
Ext2IntTierMap = make(map[string]*String2Int)
loadAWSDefault(&Int2ExtTierMap, &Ext2IntTierMap)
loadOpenSDSDefault(&Int2ExtTierMap, &Ext2IntTierMap)
loadAzureDefault(&Int2ExtTierMap, &Ext2IntTierMap)
loadHWDefault(&Int2ExtTierMap, &Ext2IntTierMap)
loadGCPDefault(&Int2ExtTierMap, &Ext2IntTierMap)
loadCephDefault(&Int2ExtTierMap, &Ext2IntTierMap)
loadFusionStroageDefault(&Int2ExtTierMap, &Ext2IntTierMap)
log.Logf("Int2ExtTierMap:%v\n", Int2ExtTierMap)
log.Logf("Ext2IntTierMap:%v\n", Ext2IntTierMap)
return nil
}
// Currently user defined storage tiers and classes are not supported.
func loadUserDefinedStorageClass() error {
log.Log("user defined storage class is not supported now")
return fmt.Errorf("user defined storage class is not supported now")
}
func loadDefaultTransition() error {
TransitionMap = make(map[int32][]int32)
TransitionMap[Tier99] = []int32{Tier1}
TransitionMap[Tier999] = []int32{Tier1, Tier99}
log.Logf("loadDefaultTransition:%+v\n", TransitionMap)
return nil
}
func loadUserDefinedTransition() error {
log.Log("user defined storage class is not supported now")
return fmt.Errorf("user defined storage class is not supported now")
}
func initStorageClass() {
// Check if use the default storage class.
set := os.Getenv("USE_DEFAULT_STORAGE_CLASS")
val, err := strconv.ParseInt(set, 10, 64)
log.Logf("USE_DEFAULT_STORAGE_CLASS:set=%s, val=%d, err=%v.\n", set, val, err)
if err != nil {
log.Logf("invalid USE_DEFAULT_STORAGE_CLASS:%s", set)
panic("init s3service failed")
}
// Load storage class definition and transition relationship.
var err1, err2 error
if val > 0 {
err1 = loadDefaultStorageClass()
err2 = loadDefaultTransition()
} else {
err1 = loadDefaultTransition()
err2 = loadUserDefinedTransition()
}
// Exit if init failed.
if err1 != nil || err2 != nil {
panic("init s3service failed")
}
}
func (b *s3Service) GetStorageClasses(ctx context.Context, in *pb.BaseRequest, out *pb.GetStorageClassesResponse) error {
classes := []*pb.StorageClass{}
for _, v := range SupportedClasses {
classes = append(classes, &pb.StorageClass{Name: v.Name, Tier: v.Tier})
}
out.Classes = classes
return nil
}
func (b *s3Service) ListBuckets(ctx context.Context, in *pb.BaseRequest, out *pb.ListBucketsResponse) error {
log.Log("ListBuckets is called in s3 service.")
buckets := []pb.Bucket{}
err := db.DbAdapter.ListBuckets(in, &buckets)
if err.Code != ERR_OK {
return err.Error()
}
for j := 0; j < len(buckets); j++ {
if buckets[j].Deleted != true {
out.Buckets = append(out.Buckets, &buckets[j])
}
}
return nil
}
func (b *s3Service) CreateBucket(ctx context.Context, in *pb.Bucket, out *pb.BaseResponse) error {
log.Log("CreateBucket is called in s3 service.")
bucket := pb.Bucket{}
err := db.DbAdapter.GetBucketByName(in.Name, &bucket)
//err := db.DbAdapter.CreateBucket(in)
if err.Code != ERR_OK && err.Code != http.StatusNotFound {
return err.Error()
}
if err.Code == http.StatusNotFound {
log.Log(".CreateBucket is called in s3 service.")
err1 := db.DbAdapter.CreateBucket(in)
if err1.Code != ERR_OK {
return err.Error()
}
} else {
log.Log(".UpdateBucket is called in s3 service.")
in.Deleted = false
err1 := db.DbAdapter.UpdateBucket(in)
if err1.Code != ERR_OK {
return err.Error()
}
}
out.Msg = "Create bucket successfully."
return nil
}
func (b *s3Service) GetBucket(ctx context.Context, in *pb.Bucket, out *pb.Bucket) error {
log.Logf("GetBucket %s is called in s3 service.", in.Name)
err := db.DbAdapter.GetBucketByName(in.Name, out)
if err.Code != ERR_OK {
return err.Error()
}
return nil
}
func (b *s3Service) DeleteBucket(ctx context.Context, in *pb.Bucket, out *pb.BaseResponse) error {
log.Log("DeleteBucket is called in s3 service.")
bucket := pb.Bucket{}
err := db.DbAdapter.GetBucketByName(in.Name, &bucket)
if err.Code != ERR_OK {
return err.Error()
}
bucket.Deleted = true
log.Log("UpdateBucket is called in s3 service.")
err1 := db.DbAdapter.UpdateBucket(&bucket)
if err1.Code != ERR_OK {
return err.Error()
}
out.Msg = "Delete bucket successfully."
return nil
}
func (b *s3Service) ListObjects(ctx context.Context, in *pb.ListObjectsRequest, out *pb.ListObjectResponse) error {
log.Log("ListObject is called in s3 service.")
objects := []pb.Object{}
err := db.DbAdapter.ListObjects(in, &objects)
if err.Code != ERR_OK {
return err.Error()
}
for j := 0; j < len(objects); j++ {
out.ListObjects = append(out.ListObjects, &objects[j])
}
return nil
}
func (b *s3Service) CreateObject(ctx context.Context, in *pb.Object, out *pb.BaseResponse) error {
log.Log("PutObject is called in s3 service.")
getObjectInput := pb.GetObjectInput{Bucket: in.BucketName, Key: in.ObjectKey}
object := pb.Object{}
err := db.DbAdapter.GetObject(&getObjectInput, &object)
if err.Code != ERR_OK && err.Code != http.StatusNotFound {
return err.Error()
}
if err.Code == http.StatusNotFound {
log.Log("CreateObject is called in s3 service.")
err1 := db.DbAdapter.CreateObject(in)
if err1.Code != ERR_OK {
return err.Error()
}
} else {
log.Log("UpdateObject is called in s3 service.")
err1 := db.DbAdapter.UpdateObject(in)
if err1.Code != ERR_OK {
return err.Error()
}
}
out.Msg = "Create object successfully."
return nil
}
func (b *s3Service) UpdateObject(ctx context.Context, in *pb.Object, out *pb.BaseResponse) error {
log.Log("PutObject is called in s3 service.")
err := db.DbAdapter.UpdateObject(in)
if err.Code != ERR_OK {
return err.Error()
}
out.Msg = "update object successfully."
return nil
}
func (b *s3Service) GetObject(ctx context.Context, in *pb.GetObjectInput, out *pb.Object) error {
log.Log("GetObject is called in s3 service.")
err := db.DbAdapter.GetObject(in, out)
if err.Code != ERR_OK {
return err.Error()
}
return nil
}
func (b *s3Service) DeleteObject(ctx context.Context, in *pb.DeleteObjectInput, out *pb.BaseResponse) error {
log.Log("DeleteObject is called in s3 service.")
getObjectInput := pb.GetObjectInput{Bucket: in.Bucket, Key: in.Key}
object := pb.Object{}
err := db.DbAdapter.GetObject(&getObjectInput, &object)
if err.Code != ERR_OK {
return err.Error()
}
object.IsDeleteMarker = "1"
log.Log("UpdateObject is called in s3 service.")
err1 := db.DbAdapter.UpdateObject(&object)
if err1.Code != ERR_OK {
return err.Error()
}
out.Msg = "Delete object successfully."
return nil
}
func NewS3Service() pb.S3Handler {
host := os.Getenv("DB_HOST")
dbstor := Database{Credential: "unkonwn", Driver: "mongodb", Endpoint: host}
db.Init(&dbstor)
initStorageClass()
return &s3Service{}
}
func (b *s3Service) GetTierMap(ctx context.Context, in *pb.BaseRequest, out *pb.GetTierMapResponse) error {
log.Log("GetTierMap ...")
//Get map from internal tier to external class name.
out.Tier2Name = make(map[string]*pb.Tier2ClassName)
for k, v := range Int2ExtTierMap {
var val pb.Tier2ClassName
val.Lst = make(map[int32]string)
for k1, v1 := range *v {
val.Lst[k1] = v1
}
out.Tier2Name[k] = &val
}
//Get transition map.
for k, v := range TransitionMap {
for _, t := range v {
trans := fmt.Sprintf("%d:%d", t, k)
out.Transition = append(out.Transition, trans)
}
}
log.Logf("out.Transition:%v\n", out.Transition)
return nil
}
func (b *s3Service) UpdateObjMeta(ctx context.Context, in *pb.UpdateObjMetaRequest, out *pb.BaseResponse) error {
log.Logf("Update meatadata, setting:%v\n", in.Setting)
valid := make(map[string]struct{})
valid["tier"] = struct{}{}
valid["backend"] = struct{}{}
ret, err := CheckReqObjMeta(in.Setting, valid)
if err.Code != ERR_OK {
out.ErrorCode = fmt.Sprintf("%s", err.Code)
out.Msg = err.Description
return err.Error()
}
err = db.DbAdapter.UpdateObjMeta(&in.ObjKey, &in.BucketName, ret)
if err.Code != ERR_OK {
out.ErrorCode = fmt.Sprintf("%s", err.Code)
out.Msg = err.Description
return err.Error()
}
out.Msg = "update object meta data successfully."
return nil
}
func CheckReqObjMeta(req map[string]string, valid map[string]struct{}) (map[string]interface{}, S3Error) {
ret := make(map[string]interface{})
for k, v := range req {
if _, ok := valid[k]; !ok {
log.Logf("s3 service check object metadata failed, invalid key: %s.\n", k)
return nil, BadRequest
}
if k == "tier" {
v1, err := strconv.Atoi(v)
if err != nil {
log.Logf("s3 service check object metadata failed, invalid tier: %s.\n", v)
return nil, BadRequest
}
ret[k] = v1
} else {
ret[k] = v
}
}
return ret, NoError
}
func (b *s3Service) GetBackendTypeByTier(ctx context.Context, in *pb.GetBackendTypeByTierRequest, out *pb.GetBackendTypeByTierResponse) error {
for k, v := range Int2ExtTierMap {
for k1, _ := range *v {
if k1 == in.Tier {
out.Types = append(out.Types, k)
}
}
}
log.Logf("GetBackendTypesByTier, types:%v\n", out.Types)
return nil
}