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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 api
import (
"encoding/json"
"io"
"net/http"
"github.com/gorilla/mux"
"github.com/onap/multicloud-k8s/src/dcm/pkg/module"
orch "github.com/onap/multicloud-k8s/src/orchestrator/pkg/module"
pkgerrors "github.com/pkg/errors"
)
// logicalCloudHandler is used to store backend implementations objects
type logicalCloudHandler struct {
client module.LogicalCloudManager
clusterClient module.ClusterManager
quotaClient module.QuotaManager
}
// CreateHandler handles the creation of a logical cloud
func (h logicalCloudHandler) createHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
var v module.LogicalCloud
err := json.NewDecoder(r.Body).Decode(&v)
switch {
case err == io.EOF:
http.Error(w, "Empty body", http.StatusBadRequest)
return
case err != nil:
http.Error(w, err.Error(), http.StatusUnprocessableEntity)
return
}
// Logical Cloud Name is required.
if v.MetaData.LogicalCloudName == "" {
http.Error(w, "Missing name in POST request", http.StatusBadRequest)
return
}
// Validate that the specified Project exists
// before associating a Logical Cloud with it
p := orch.NewProjectClient()
_, err = p.GetProject(project)
if err != nil {
http.Error(w, "The specified project does not exist.", http.StatusNotFound)
return
}
ret, err := h.client.Create(project, v)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusCreated)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// getAllHandler handles GET operations over logical clouds
// Returns a list of Logical Clouds
func (h logicalCloudHandler) getAllHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
var ret interface{}
var err error
ret, err = h.client.GetAll(project)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// getHandler handles GET operations on a particular name
// Returns a Logical Cloud
func (h logicalCloudHandler) getHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
name := vars["logical-cloud-name"]
var ret interface{}
var err error
ret, err = h.client.Get(project, name)
if err != nil {
if err.Error() == "Logical Cloud does not exist" {
http.Error(w, err.Error(), http.StatusNotFound)
return
}
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// updateHandler handles Update operations on a particular logical cloud
func (h logicalCloudHandler) updateHandler(w http.ResponseWriter, r *http.Request) {
var v module.LogicalCloud
vars := mux.Vars(r)
project := vars["project-name"]
name := vars["logical-cloud-name"]
err := json.NewDecoder(r.Body).Decode(&v)
switch {
case err == io.EOF:
http.Error(w, "Empty body", http.StatusBadRequest)
return
case err != nil:
http.Error(w, err.Error(), http.StatusUnprocessableEntity)
return
}
if v.MetaData.LogicalCloudName == "" {
http.Error(w, "Missing name in PUT request", http.StatusBadRequest)
return
}
ret, err := h.client.Update(project, name, v)
if err != nil {
if err.Error() == "Logical Cloud does not exist" {
http.Error(w, err.Error(), http.StatusNotFound)
return
}
http.Error(w, err.Error(),
http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusCreated)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(),
http.StatusInternalServerError)
return
}
}
// deleteHandler handles Delete operations on a particular logical cloud
func (h logicalCloudHandler) deleteHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
name := vars["logical-cloud-name"]
err := h.client.Delete(project, name)
if err != nil {
if err.Error() == "Logical Cloud does not exist" {
http.Error(w, err.Error(), http.StatusNotFound)
return
}
if err.Error() == "The Logical Cloud can't be deleted yet, it is being terminated." {
http.Error(w, err.Error(), http.StatusConflict)
return
}
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
// applyHandler handles applying a particular logical cloud
func (h logicalCloudHandler) applyHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
name := vars["logical-cloud-name"]
// Get logical cloud
lc, err := h.client.Get(project, name)
if err != nil {
if err.Error() == "Logical Cloud does not exist" {
http.Error(w, err.Error(), http.StatusNotFound)
return
}
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
// Get Clusters
clusters, err := h.clusterClient.GetAllClusters(project, name)
if err != nil {
if err.Error() == "No Cluster References associated" {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
// Get Quotas
quotas, err := h.quotaClient.GetAllQuotas(project, name)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
// Apply the Logical Cloud
err = module.Apply(project, lc, clusters, quotas)
if err != nil {
if err.Error() == "The Logical Cloud can't be re-applied yet, it is being terminated." {
http.Error(w, err.Error(), http.StatusConflict)
return
}
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
return
}
// applyHandler handles terminating a particular logical cloud
func (h logicalCloudHandler) terminateHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
name := vars["logical-cloud-name"]
// Get logical cloud
lc, err := h.client.Get(project, name)
if err != nil {
if err.Error() == "Logical Cloud does not exist" {
http.Error(w, err.Error(), http.StatusNotFound)
return
}
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
_, ctxVal, err := h.client.GetLogicalCloudContext(project, name)
if ctxVal == "" {
err = pkgerrors.New("Logical Cloud hasn't been applied yet")
http.Error(w, err.Error(), http.StatusConflict)
return
}
// Get Clusters
clusters, err := h.clusterClient.GetAllClusters(project, name)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
// Get Quotas
quotas, err := h.quotaClient.GetAllQuotas(project, name)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
// Terminate the Logical Cloud
err = module.Terminate(project, lc, clusters, quotas)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
return
}
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