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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 governinog permissions and
* limitations under the License.
*/
package module
import (
"encoding/json"
"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
pkgerrors "github.com/pkg/errors"
)
// CompositeApp contains metadata and spec for CompositeApps
type CompositeApp struct {
Metadata CompositeAppMetaData `json:"metadata"`
Spec CompositeAppSpec `json:"spec"`
}
//CompositeAppMetaData contains the parameters needed for CompositeApps
type CompositeAppMetaData struct {
Name string `json:"name"`
Description string `json:"description"`
UserData1 string `userData1:"userData1"`
UserData2 string `userData2:"userData2"`
}
//CompositeAppSpec contains the Version of the CompositeApp
type CompositeAppSpec struct {
Version string `json:"version"`
}
// CompositeAppKey is the key structure that is used in the database
type CompositeAppKey struct {
CompositeAppName string `json:"compositeappname"`
Version string `json:"version"`
Project string `json:"project"`
}
// We will use json marshalling to convert to string to
// preserve the underlying structure.
func (cK CompositeAppKey) String() string {
out, err := json.Marshal(cK)
if err != nil {
return ""
}
return string(out)
}
// CompositeAppManager is an interface exposes the CompositeApp functionality
type CompositeAppManager interface {
CreateCompositeApp(c CompositeApp, p string) (CompositeApp, error)
GetCompositeApp(name string, version string, p string) (CompositeApp, error)
DeleteCompositeApp(name string, version string, p string) error
}
// CompositeAppClient implements the CompositeAppManager
// It will also be used to maintain some localized state
type CompositeAppClient struct {
storeName string
tagMeta string
}
// NewCompositeAppClient returns an instance of the CompositeAppClient
// which implements the CompositeAppManager
func NewCompositeAppClient() *CompositeAppClient {
return &CompositeAppClient{
storeName: "orchestrator",
tagMeta: "compositeapp",
}
}
// CreateCompositeApp creates a new collection based on the CompositeApp
func (v *CompositeAppClient) CreateCompositeApp(c CompositeApp, p string) (CompositeApp, error) {
//Construct the composite key to select the entry
key := CompositeAppKey{
CompositeAppName: c.Metadata.Name,
Version: c.Spec.Version,
Project: p,
}
//Check if this CompositeApp already exists
_, err := v.GetCompositeApp(c.Metadata.Name, c.Spec.Version, p)
if err == nil {
return CompositeApp{}, pkgerrors.New("CompositeApp already exists")
}
//Check if Project exists
_, err = NewProjectClient().GetProject(p)
if err != nil {
return CompositeApp{}, pkgerrors.New("Unable to find the project")
}
err = db.DBconn.Create(v.storeName, key, v.tagMeta, c)
if err != nil {
return CompositeApp{}, pkgerrors.Wrap(err, "Creating DB Entry")
}
return c, nil
}
// GetCompositeApp returns the CompositeApp for corresponding name
func (v *CompositeAppClient) GetCompositeApp(name string, version string, p string) (CompositeApp, error) {
//Construct the composite key to select the entry
key := CompositeAppKey{
CompositeAppName: name,
Version: version,
Project: p,
}
value, err := db.DBconn.Read(v.storeName, key, v.tagMeta)
if err != nil {
return CompositeApp{}, pkgerrors.Wrap(err, "Get composite application")
}
//value is a byte array
if value != nil {
compApp := CompositeApp{}
err = db.DBconn.Unmarshal(value, &compApp)
if err != nil {
return CompositeApp{}, pkgerrors.Wrap(err, "Unmarshaling Value")
}
return compApp, nil
}
return CompositeApp{}, pkgerrors.New("Error getting composite application")
}
// DeleteCompositeApp deletes the CompositeApp from database
func (v *CompositeAppClient) DeleteCompositeApp(name string, version string, p string) error {
//Construct the composite key to select the entry
key := CompositeAppKey{
CompositeAppName: name,
Version: version,
Project: p,
}
err := db.DBconn.Delete(v.storeName, key, v.tagMeta)
if err != nil {
return pkgerrors.Wrap(err, "Delete CompositeApp Entry;")
}
return nil
}
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