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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"
"net/http"
"io"
"github.com/onap/multicloud-k8s/src/dcm/pkg/module"
"github.com/gorilla/mux"
)
// quotaHandler is used to store backend implementations objects
type quotaHandler struct {
client module.QuotaManager
}
// CreateHandler handles creation of the quota entry in the database
func (h quotaHandler) createHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
var v module.Quota
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
}
// Quota Name is required.
if v.MetaData.QuotaName == "" {
http.Error(w, "Missing name in POST request", http.StatusBadRequest)
return
}
ret, err := h.client.CreateQuota(project, logicalCloud, 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
}
}
// getHandler handle GET operations on a particular name
// Returns a quota
func (h quotaHandler) getHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
name := vars["quota-name"]
var ret interface{}
var err error
if len(name) == 0 {
ret, err = h.client.GetAllQuotas(project, logicalCloud)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
} else {
ret, err = h.client.GetQuota(project, logicalCloud, name)
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
}
}
// UpdateHandler handles Update operations on a particular quota
func (h quotaHandler) updateHandler(w http.ResponseWriter, r *http.Request) {
var v module.Quota
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
name := vars["quota-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
}
// Name is required.
if v.MetaData.QuotaName == "" {
http.Error(w, "Missing name in PUT request", http.StatusBadRequest)
return
}
ret, err := h.client.UpdateQuota(project, logicalCloud, name, 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
}
}
//deleteHandler handles DELETE operations on a particular record
func (h quotaHandler) deleteHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
name := vars["quota-name"]
err := h.client.DeleteQuota(project, logicalCloud, name)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
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