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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"
"fmt"
"io"
"net/http"
moduleLib "github.com/onap/multicloud-k8s/src/ncm/pkg/module"
pkgerrors "github.com/pkg/errors"
"github.com/gorilla/mux"
)
// Used to store backend implementations objects
// Also simplifies mocking for unit testing purposes
type netcontrolintentHandler struct {
// Interface that implements Cluster operations
// We will set this variable with a mock interface for testing
client moduleLib.NetControlIntentManager
}
// Check for valid format of input parameters
func validateNetControlIntentInputs(nci moduleLib.NetControlIntent) error {
// validate metadata
err := moduleLib.IsValidMetadata(nci.Metadata)
if err != nil {
return pkgerrors.Wrap(err, "Invalid network controller intent metadata")
}
return nil
}
// Create handles creation of the NetControlIntent entry in the database
func (h netcontrolintentHandler) createHandler(w http.ResponseWriter, r *http.Request) {
var nci moduleLib.NetControlIntent
vars := mux.Vars(r)
project := vars["project"]
compositeApp := vars["composite-app-name"]
compositeAppVersion := vars["version"]
err := json.NewDecoder(r.Body).Decode(&nci)
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 nci.Metadata.Name == "" {
http.Error(w, "Missing name in POST request", http.StatusBadRequest)
return
}
err = validateNetControlIntentInputs(nci)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
ret, err := h.client.CreateNetControlIntent(nci, project, compositeApp, compositeAppVersion, false)
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
}
}
// Put handles creation/update of the NetControlIntent entry in the database
func (h netcontrolintentHandler) putHandler(w http.ResponseWriter, r *http.Request) {
var nci moduleLib.NetControlIntent
vars := mux.Vars(r)
name := vars["name"]
project := vars["project"]
compositeApp := vars["composite-app-name"]
compositeAppVersion := vars["version"]
err := json.NewDecoder(r.Body).Decode(&nci)
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 nci.Metadata.Name == "" {
http.Error(w, "Missing name in PUT request", http.StatusBadRequest)
return
}
// Name in URL should match name in body
if nci.Metadata.Name != name {
fmt.Printf("bodyname = %v, name= %v\n", nci.Metadata.Name, name)
http.Error(w, "Mismatched name in PUT request", http.StatusBadRequest)
return
}
err = validateNetControlIntentInputs(nci)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
ret, err := h.client.CreateNetControlIntent(nci, project, compositeApp, compositeAppVersion, true)
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
}
}
// Get handles GET operations on a particular NetControlIntent Name
// Returns a NetControlIntent
func (h netcontrolintentHandler) getHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
name := vars["name"]
project := vars["project"]
compositeApp := vars["composite-app-name"]
compositeAppVersion := vars["version"]
var ret interface{}
var err error
if len(name) == 0 {
ret, err = h.client.GetNetControlIntents(project, compositeApp, compositeAppVersion)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
} else {
ret, err = h.client.GetNetControlIntent(name, project, compositeApp, compositeAppVersion)
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
}
}
// Delete handles DELETE operations on a particular NetControlIntent Name
func (h netcontrolintentHandler) deleteHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
name := vars["name"]
project := vars["project"]
compositeApp := vars["composite-app-name"]
compositeAppVersion := vars["version"]
err := h.client.DeleteNetControlIntent(name, project, compositeApp, compositeAppVersion)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
// Apply handles POST operations to Apply a particular NetControlIntent to the App Context
func (h netcontrolintentHandler) applyHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
name := vars["name"]
project := vars["project"]
compositeApp := vars["composite-app-name"]
compositeAppVersion := vars["version"]
var aci struct {
AppContextId string `json:"appContextId"`
}
err := json.NewDecoder(r.Body).Decode(&aci)
switch {
case err == io.EOF:
http.Error(w, "Empty body", http.StatusBadRequest)
return
case err != nil:
http.Error(w, err.Error(), http.StatusUnprocessableEntity)
return
}
err = h.client.ApplyNetControlIntent(name, project, compositeApp, compositeAppVersion, aci.AppContextId)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
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