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/*
* Copyright 2020 Intel Corporation, Inc
*
* 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 module
import (
"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
pkgerrors "github.com/pkg/errors"
)
// WorkloadIntent contains the parameters needed for dynamic networks
type WorkloadIntent struct {
Metadata Metadata `json:"metadata"`
Spec WorkloadIntentSpec `json:"spec"`
}
type WorkloadIntentSpec struct {
AppName string `json:"application-name"`
WorkloadResource string `json:"workload-resource"`
Type string `json:"type"`
}
// WorkloadIntentKey is the key structure that is used in the database
type WorkloadIntentKey struct {
Project string `json:"provider"`
CompositeApp string `json:"compositeapp"`
CompositeAppVersion string `json:"compositeappversion"`
NetControlIntent string `json:"netcontrolintent"`
WorkloadIntent string `json:"workloadintent"`
}
// Manager is an interface exposing the WorkloadIntent functionality
type WorkloadIntentManager interface {
CreateWorkloadIntent(wi WorkloadIntent, project, compositeapp, compositeappversion, netcontrolintent string, exists bool) (WorkloadIntent, error)
GetWorkloadIntent(name, project, compositeapp, compositeappversion, netcontrolintent string) (WorkloadIntent, error)
GetWorkloadIntents(project, compositeapp, compositeappversion, netcontrolintent string) ([]WorkloadIntent, error)
DeleteWorkloadIntent(name, project, compositeapp, compositeappversion, netcontrolintent string) error
}
// WorkloadIntentClient implements the Manager
// It will also be used to maintain some localized state
type WorkloadIntentClient struct {
db ClientDbInfo
}
// NewWorkloadIntentClient returns an instance of the WorkloadIntentClient
// which implements the Manager
func NewWorkloadIntentClient() *WorkloadIntentClient {
return &WorkloadIntentClient{
db: ClientDbInfo{
storeName: "orchestrator",
tagMeta: "workloadintentmetadata",
},
}
}
// CreateWorkloadIntent - create a new WorkloadIntent
func (v *WorkloadIntentClient) CreateWorkloadIntent(wi WorkloadIntent, project, compositeapp, compositeappversion, netcontrolintent string, exists bool) (WorkloadIntent, error) {
//Construct key and tag to select the entry
key := WorkloadIntentKey{
Project: project,
CompositeApp: compositeapp,
CompositeAppVersion: compositeappversion,
NetControlIntent: netcontrolintent,
WorkloadIntent: wi.Metadata.Name,
}
//Check if the Network Control Intent exists
_, err := NewNetControlIntentClient().GetNetControlIntent(netcontrolintent, project, compositeapp, compositeappversion)
if err != nil {
return WorkloadIntent{}, pkgerrors.Errorf("Network Control Intent %v does not exist", netcontrolintent)
}
//Check if this WorkloadIntent already exists
_, err = v.GetWorkloadIntent(wi.Metadata.Name, project, compositeapp, compositeappversion, netcontrolintent)
if err == nil && !exists {
return WorkloadIntent{}, pkgerrors.New("WorkloadIntent already exists")
}
err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagMeta, wi)
if err != nil {
return WorkloadIntent{}, pkgerrors.Wrap(err, "Creating DB Entry")
}
return wi, nil
}
// GetWorkloadIntent returns the WorkloadIntent for corresponding name
func (v *WorkloadIntentClient) GetWorkloadIntent(name, project, compositeapp, compositeappversion, netcontrolintent string) (WorkloadIntent, error) {
//Construct key and tag to select the entry
key := WorkloadIntentKey{
Project: project,
CompositeApp: compositeapp,
CompositeAppVersion: compositeappversion,
NetControlIntent: netcontrolintent,
WorkloadIntent: name,
}
value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
if err != nil {
return WorkloadIntent{}, pkgerrors.Wrap(err, "Get WorkloadIntent")
}
//value is a byte array
if value != nil {
wi := WorkloadIntent{}
err = db.DBconn.Unmarshal(value[0], &wi)
if err != nil {
return WorkloadIntent{}, pkgerrors.Wrap(err, "Unmarshalling Value")
}
return wi, nil
}
return WorkloadIntent{}, pkgerrors.New("Error getting WorkloadIntent")
}
// GetWorkloadIntentList returns all of the WorkloadIntent for corresponding name
func (v *WorkloadIntentClient) GetWorkloadIntents(project, compositeapp, compositeappversion, netcontrolintent string) ([]WorkloadIntent, error) {
//Construct key and tag to select the entry
key := WorkloadIntentKey{
Project: project,
CompositeApp: compositeapp,
CompositeAppVersion: compositeappversion,
NetControlIntent: netcontrolintent,
WorkloadIntent: "",
}
var resp []WorkloadIntent
values, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
if err != nil {
return []WorkloadIntent{}, pkgerrors.Wrap(err, "Get WorkloadIntents")
}
for _, value := range values {
wi := WorkloadIntent{}
err = db.DBconn.Unmarshal(value, &wi)
if err != nil {
return []WorkloadIntent{}, pkgerrors.Wrap(err, "Unmarshalling Value")
}
resp = append(resp, wi)
}
return resp, nil
}
// Delete the WorkloadIntent from database
func (v *WorkloadIntentClient) DeleteWorkloadIntent(name, project, compositeapp, compositeappversion, netcontrolintent string) error {
//Construct key and tag to select the entry
key := WorkloadIntentKey{
Project: project,
CompositeApp: compositeapp,
CompositeAppVersion: compositeappversion,
NetControlIntent: netcontrolintent,
WorkloadIntent: name,
}
err := db.DBconn.Remove(v.db.storeName, key)
if err != nil {
return pkgerrors.Wrap(err, "Delete WorkloadIntent Entry;")
}
return nil
}
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