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/*
* Copyright 2019 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 project
import (
"encoding/json"
"github.com/onap/multicloud-k8s/src/orchestrator/internal/db"
pkgerrors "github.com/pkg/errors"
)
// Project contains the parameters needed for Projects
// It implements the interface for managing the Projects
type Project struct {
ProjectName string `json:"project-name"`
Description string `json:"description"`
}
// ProjectKey is the key structure that is used in the database
type ProjectKey struct {
ProjectName string `json:"rb-name"`
}
// We will use json marshalling to convert to string to
// preserve the underlying structure.
func (pk ProjectKey) String() string {
out, err := json.Marshal(pk)
if err != nil {
return ""
}
return string(out)
}
// ProjectManager is an interface exposes the Project functionality
type ProjectManager interface {
Create(pr Project) (Project, error)
Get(name string) (Project, error)
Delete(name string) error
}
// ProjectClient implements the ProjectManager
// It will also be used to maintain some localized state
type ProjectClient struct {
storeName string
tagMeta, tagContent string
}
// NewProjectClient returns an instance of the ProjectClient
// which implements the ProjectManager
func NewProjectClient() *ProjectClient {
return &ProjectClient{
tagMeta: "projectmetadata",
}
}
// Create a new collection based on the project
func (v *ProjectClient) Create(p Project) (Project, error) {
//Construct the composite key to select the entry
key := ProjectKey{
ProjectName: p.ProjectName,
}
//Check if this Project already exists
_, err := v.Get(p.ProjectName)
if err == nil {
return Project{}, pkgerrors.New("Project already exists")
}
err = db.DBconn.Create(p.ProjectName, key, v.tagMeta, p)
if err != nil {
return Project{}, pkgerrors.Wrap(err, "Creating DB Entry")
}
return p, nil
}
// Get returns the Project for corresponding name
func (v *ProjectClient) Get(name string) (Project, error) {
//Construct the composite key to select the entry
key := ProjectKey{
ProjectName: name,
}
value, err := db.DBconn.Read(name, key, v.tagMeta)
if err != nil {
return Project{}, pkgerrors.Wrap(err, "Get Project")
}
//value is a byte array
if value != nil {
proj := Project{}
err = db.DBconn.Unmarshal(value, &proj)
if err != nil {
return Project{}, pkgerrors.Wrap(err, "Unmarshaling Value")
}
return proj, nil
}
return Project{}, pkgerrors.New("Error getting Project")
}
// Delete the Project from database
func (v *ProjectClient) Delete(name string) error {
//Construct the composite key to select the entry
key := ProjectKey{
ProjectName: name,
}
err := db.DBconn.Delete(name, key, v.tagMeta)
if err != nil {
return pkgerrors.Wrap(err, "Delete Project Entry;")
}
//TODO: Delete the collection when the project is deleted
return nil
}
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