/
utils.go
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/
utils.go
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// Copyright 2020 The SODA 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 utils
import (
"context"
"errors"
"fmt"
"strings"
backend "github.com/opensds/multi-cloud/backend/proto"
"github.com/opensds/multi-cloud/block/pkg/model"
block "github.com/opensds/multi-cloud/block/proto"
driverutils "github.com/opensds/multi-cloud/contrib/utils"
pstruct "github.com/golang/protobuf/ptypes/struct"
log "github.com/sirupsen/logrus"
)
const (
// It's RFC 8601 format that decodes and encodes with
// exactly precision to seconds.
TimeFormat = `2006-01-02T15:04:05`
)
const (
// VolumeCreating is a VolumeState enum value
VolumeStateCreating = "creating"
// VolumeStateAvailable is a VolumeState enum value
VolumeStateAvailable = "available"
// VolumeStateInUse is a VolumeState enum value
VolumeStateInUse = "inUse"
// VolumeStateError is a VolumeState enum value
VolumeStateError = "error"
// VolumeStateUpdating is a VolumeState enum value
VolumeStateUpdating = "updating"
// VolumeStateDeleting is a VolumeState enum value
VolumeStateDeleting = "deleting"
// VolumeStateErrorDeleting is a VolumeState enum value
VolumeStateErrorDeleting = "errorDeleting"
// VolumeStateDeleted is a VolumeState enum value
VolumeStateDeleted = "deleted"
)
var listFields map[string]*pstruct.Value
func GetBackend(ctx context.Context, backendClient backend.BackendService,
backendId string) (*backend.GetBackendResponse, error) {
backend, err := backendClient.GetBackend(ctx, &backend.GetBackendRequest{Id: backendId})
if err != nil {
log.Errorf("get backend %s failed.", backendId)
return nil, err
}
log.Infof("backend response = [%+v]\n", backend)
return backend, nil
}
func ParseStructFields(fields map[string]*pstruct.Value) (map[string]interface{}, error) {
log.Infof("Parsing struct fields = [%+v]", fields)
valuesMap := make(map[string]interface{})
for key, value := range fields {
if v, ok := value.GetKind().(*pstruct.Value_NullValue); ok {
valuesMap[key] = v.NullValue
} else if v, ok := value.GetKind().(*pstruct.Value_NumberValue); ok {
valuesMap[key] = v.NumberValue
} else if v, ok := value.GetKind().(*pstruct.Value_StringValue); ok {
valuesMap[key] = strings.Trim(v.StringValue, "\"")
} else if v, ok := value.GetKind().(*pstruct.Value_BoolValue); ok {
valuesMap[key] = v.BoolValue
} else if v, ok := value.GetKind().(*pstruct.Value_StructValue); ok {
var err error
valuesMap[key], err = ParseStructFields(v.StructValue.Fields)
if err != nil {
log.Errorf("Failed to parse struct Fields = [%+v], error: %s", v.StructValue.Fields, err)
return nil, err
}
} else if v, ok := value.GetKind().(*pstruct.Value_ListValue); ok {
listFields[key] = v.ListValue.Values[0]
} else {
msg := fmt.Sprintf("Failed to parse field for key = [%s], value = [%+v]", key, value)
err := errors.New(msg)
log.Errorf(msg)
return nil, err
}
}
return valuesMap, nil
}
func UpdateVolumeStruct(volModel *model.Volume, volPb *block.Volume) error {
var tags []*block.Tag
for _, tag := range volModel.Tags {
tags = append(tags, &block.Tag{
Key: tag.Key,
Value: tag.Value,
})
}
volPb.Tags = tags
metadata, err := driverutils.ConvertMapToStruct(volModel.Metadata)
if err != nil {
log.Error(err)
return err
}
volPb.Metadata = metadata
return nil
}
func UpdateVolumeModel(volPb *block.Volume, volModel *model.Volume) error {
tags, err := ConvertTags(volPb.Tags)
if err != nil {
log.Errorf("Failed to get conversions for tags: %v, error: %s", volPb.Tags, err)
return err
}
volModel.Tags = tags
metadata := make(map[string]interface{})
for k, v := range volModel.Metadata {
metadata[k] = v
}
metaMap, err := ConvertMetadataStructToMap(volPb.Metadata)
if err != nil {
log.Errorf("Failed to get metaMap: %+v, error: %s", volPb.Metadata, err)
return err
}
for k, v := range metaMap {
metadata[k] = v
}
volModel.Metadata = metadata
return nil
}
func ConvertTags(pbtags []*block.Tag) ([]model.Tag, error) {
var tags []model.Tag
for _, tag := range pbtags {
tags = append(tags, model.Tag{
Key: tag.Key,
Value: tag.Value,
})
}
return tags, nil
}
func ConvertMetadataStructToMap(metaStruct *pstruct.Struct) (map[string]interface{}, error) {
var metaMap map[string]interface{}
metaMap = make(map[string]interface{})
listFields = make(map[string]*pstruct.Value)
fields := metaStruct.GetFields()
metaMap, err := ParseStructFields(fields)
if err != nil {
log.Errorf("Failed to get metadata: %+v, error: %s", fields, err)
return metaMap, err
}
if len(listFields) != 0 {
meta, err := ParseStructFields(listFields)
if err != nil {
log.Errorf("Failed to get array for metadata : %+v, error: %s", listFields, err)
return metaMap, err
}
for k, v := range meta {
metaMap[k] = v
}
}
return metaMap, nil
}
func MergeVolumeData(vol *block.Volume, volFinal *block.Volume) error {
if vol.Tags != nil || len(vol.Tags) != 0 {
volFinal.Tags = vol.Tags
}
var metaMapFinal map[string]interface{}
metaMapFinal, err := ConvertMetadataStructToMap(volFinal.Metadata)
if err != nil {
log.Errorf("Failed to get metaMap: %+v, error: %s", volFinal.Metadata, err)
return err
}
metaMap, err := ConvertMetadataStructToMap(vol.Metadata)
if err != nil {
log.Errorf("Failed to get metaMap: %+v, error: %s", vol.Metadata, err)
return err
}
for k, v := range metaMap {
metaMapFinal[k] = v
}
volFinal.Status = vol.Status
volFinal.Size = vol.Size
volFinal.Encrypted = vol.Encrypted
volFinal.EncryptionSettings = vol.EncryptionSettings
metadataFS, err := driverutils.ConvertMapToStruct(metaMapFinal)
if err != nil {
log.Error(err)
return err
}
volFinal.Metadata = metadataFS
return nil
}