+++ /dev/null
-/*
-==================================================================================
- Copyright (c) 2019 AT&T Intellectual Property.
- Copyright (c) 2019 Nokia
-
- 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 main
-
-import (
- "encoding/json"
- "errors"
- "github.com/gorilla/mux"
- "github.com/spf13/viper"
- "log"
- "net/http"
- "time"
-)
-
-// API functions
-
-func (m *XappManager) Initialize(h Helmer, cm ConfigMapper) {
- m.cm = cm
- m.helm = h
- m.helm.SetCM(cm)
-
- m.router = mux.NewRouter().StrictSlash(true)
-
- resources := []Resource{
- {"GET", "/ric/v1/health/alive", m.getHealthStatus},
- {"GET", "/ric/v1/health/ready", m.getHealthStatus},
-
- {"GET", "/ric/v1/xapps", m.getAllXapps},
- {"GET", "/ric/v1/xapps/search", m.searchAllXapps},
- {"GET", "/ric/v1/xapps/{name}", m.getXappByName},
- {"GET", "/ric/v1/xapps/{name}/instances/{id}", m.getXappInstanceByName},
- {"POST", "/ric/v1/xapps", m.deployXapp},
- {"DELETE", "/ric/v1/xapps/{name}", m.undeployXapp},
-
- {"GET", "/ric/v1/subscriptions", m.getSubscriptions},
- {"POST", "/ric/v1/subscriptions", m.addSubscription},
- {"GET", "/ric/v1/subscriptions/{id}", m.getSubscription},
- {"DELETE", "/ric/v1/subscriptions/{id}", m.deleteSubscription},
- {"PUT", "/ric/v1/subscriptions/{id}", m.updateSubscription},
-
- {"GET", "/ric/v1/config", m.getConfig},
- {"POST", "/ric/v1/config", m.createConfig},
- {"PUT", "/ric/v1/config", m.updateConfig},
- {"DELETE", "/ric/v1/config", m.deleteConfig},
- {"DELETE", "/ric/v1/config/{name}", m.deleteSingleConfig},
- }
-
- for _, resource := range resources {
- handler := LogRestRequests(resource.HandlerFunc)
- //handler = m.serviceChecker(handler)
- m.router.Methods(resource.Method).Path(resource.Url).Handler(handler)
- }
-
- go m.finalize(h)
-}
-
-func (m *XappManager) finalize(h Helmer) {
- m.sd = SubscriptionDispatcher{}
- m.sd.Initialize()
-
- m.helm.Initialize()
-
- m.notifyClients()
- m.ready = true
-}
-
-func (m *XappManager) serviceChecker(inner http.Handler) http.Handler {
- return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
- if r.URL.RequestURI() == "/ric/v1/health/alive" || m.ready == true {
- inner.ServeHTTP(w, r)
- } else {
- respondWithJSON(w, http.StatusServiceUnavailable, nil)
- }
- })
-}
-
-// API: XAPP handlers
-func (m *XappManager) getHealthStatus(w http.ResponseWriter, r *http.Request) {
- respondWithJSON(w, http.StatusOK, nil)
-}
-
-func (m *XappManager) Run() {
- host := viper.GetString("local.host")
- if host == "" {
- host = ":8080"
- }
- log.Printf("Xapp manager started ... serving on %s\n", host)
-
- log.Fatal(http.ListenAndServe(host, m.router))
-}
-
-func (m *XappManager) getXappByName(w http.ResponseWriter, r *http.Request) {
- xappName, ok := getResourceId(r, w, "name")
- if ok != true {
- return
- }
-
- if xapp, err := m.helm.Status(xappName); err == nil {
- respondWithJSON(w, http.StatusOK, xapp)
- } else {
- respondWithError(w, http.StatusNotFound, err.Error())
- }
-}
-
-func (m *XappManager) getXappInstanceByName(w http.ResponseWriter, r *http.Request) {
- xappName, ok := getResourceId(r, w, "name")
- if ok != true {
- return
- }
-
- xapp, err := m.helm.Status(xappName)
- if err != nil {
- respondWithError(w, http.StatusNotFound, err.Error())
- return
- }
-
- xappInstanceName, ok := getResourceId(r, w, "id")
- if ok != true {
- return
- }
-
- for _, v := range xapp.Instances {
- if v.Name == xappInstanceName {
- respondWithJSON(w, http.StatusOK, v)
- return
- }
- }
- Logger.Error("Xapp instance not found - url=%s", r.URL.RequestURI())
-
- respondWithError(w, http.StatusNotFound, "Xapp instance not found")
-}
-
-func (m *XappManager) getAllXapps(w http.ResponseWriter, r *http.Request) {
- xapps, err := m.helm.StatusAll()
- if err != nil {
- respondWithError(w, http.StatusInternalServerError, err.Error())
- return
- }
-
- respondWithJSON(w, http.StatusOK, xapps)
-}
-
-func (m *XappManager) searchAllXapps(w http.ResponseWriter, r *http.Request) {
- respondWithJSON(w, http.StatusOK, m.helm.SearchAll())
-}
-
-func (m *XappManager) deployXapp(w http.ResponseWriter, r *http.Request) {
- if r.Body == nil {
- Logger.Error("No xapp data found in request body - url=%s", r.URL.RequestURI())
- respondWithError(w, http.StatusMethodNotAllowed, "No xapp data!")
- return
- }
-
- var cm XappDeploy
- if err := json.NewDecoder(r.Body).Decode(&cm); err != nil {
- Logger.Error("Invalid xapp data in request body - url=%s", r.URL.RequestURI())
- respondWithError(w, http.StatusMethodNotAllowed, "Invalid xapp data!")
- return
- }
- defer r.Body.Close()
-
- xapp, err := m.helm.Install(cm)
- if err != nil {
- respondWithError(w, http.StatusInternalServerError, err.Error())
- return
- }
-
- for i := 0; i < 3; i++ {
- if xapp, err = m.helm.Status(xapp.Name); xapp.Instances != nil {
- break
- }
- time.Sleep(time.Duration(5) * time.Second)
- }
-
- respondWithJSON(w, http.StatusCreated, xapp)
-
- m.sd.Publish(xapp, EventType("created"))
-}
-
-func (m *XappManager) undeployXapp(w http.ResponseWriter, r *http.Request) {
- xappName, ok := getResourceId(r, w, "name")
- if ok != true {
- return
- }
-
- xapp, err := m.helm.Delete(xappName)
- if err != nil {
- respondWithError(w, http.StatusInternalServerError, err.Error())
- return
- }
-
- respondWithJSON(w, http.StatusNoContent, nil)
-
- m.sd.Publish(xapp, EventType("deleted"))
-}
-
-// API: resthook handlers
-func (m *XappManager) getSubscriptions(w http.ResponseWriter, r *http.Request) {
- respondWithJSON(w, http.StatusOK, m.sd.GetAll())
-}
-
-func (m *XappManager) getSubscription(w http.ResponseWriter, r *http.Request) {
- if id, ok := getResourceId(r, w, "id"); ok == true {
- if s, ok := m.sd.Get(id); ok {
- respondWithJSON(w, http.StatusOK, s)
- } else {
- Logger.Error("Subscription not found - url=%s", r.URL.RequestURI())
- respondWithError(w, http.StatusNotFound, "Subscription not found")
- }
- }
-}
-
-func (m *XappManager) deleteSubscription(w http.ResponseWriter, r *http.Request) {
- if id, ok := getResourceId(r, w, "id"); ok == true {
- if _, ok := m.sd.Delete(id); ok {
- respondWithJSON(w, http.StatusNoContent, nil)
- } else {
- Logger.Error("Subscription not found - url=%s", r.URL.RequestURI())
- respondWithError(w, http.StatusNotFound, "Subscription not found")
- }
- }
-}
-
-func (m *XappManager) addSubscription(w http.ResponseWriter, r *http.Request) {
- var req SubscriptionReq
- if r.Body == nil || json.NewDecoder(r.Body).Decode(&req) != nil {
- Logger.Error("Invalid request payload - url=%s", r.URL.RequestURI())
- respondWithError(w, http.StatusMethodNotAllowed, "Invalid request payload")
- return
- }
- defer r.Body.Close()
-
- respondWithJSON(w, http.StatusCreated, m.sd.Add(req))
-}
-
-func (m *XappManager) updateSubscription(w http.ResponseWriter, r *http.Request) {
- if id, ok := getResourceId(r, w, "id"); ok == true {
- var req SubscriptionReq
- if r.Body == nil || json.NewDecoder(r.Body).Decode(&req) != nil {
- Logger.Error("Invalid request payload - url=%s", r.URL.RequestURI())
- respondWithError(w, http.StatusMethodNotAllowed, "Invalid request payload")
- return
- }
- defer r.Body.Close()
-
- if s, ok := m.sd.Update(id, req); ok {
- respondWithJSON(w, http.StatusOK, s)
- } else {
- Logger.Error("Subscription not found - url=%s", r.URL.RequestURI())
- respondWithError(w, http.StatusNotFound, "Subscription not found")
- }
- }
-}
-
-func (m *XappManager) notifyClients() {
- xapps, err := m.helm.StatusAll()
- if err != nil {
- Logger.Info("Couldn't fetch xapps status information: %v", err.Error())
- return
- }
-
- m.sd.notifyClients(xapps, "updated")
-}
-
-func (m *XappManager) getConfig(w http.ResponseWriter, r *http.Request) {
- cfg := m.cm.UploadConfig()
- respondWithJSON(w, http.StatusOK, cfg)
-}
-
-func (m *XappManager) createConfig(w http.ResponseWriter, r *http.Request) {
- var c XAppConfig
- if parseConfig(w, r, &c) != nil {
- return
- }
-
- if errList, err := m.cm.CreateConfigMap(c); err != nil {
- if err.Error() != "Validation failed!" {
- respondWithError(w, http.StatusInternalServerError, err.Error())
- } else {
- respondWithJSON(w, http.StatusUnprocessableEntity, errList)
- }
- return
- }
- respondWithJSON(w, http.StatusCreated, c.Metadata)
-}
-
-func (m *XappManager) updateConfig(w http.ResponseWriter, r *http.Request) {
- var c XAppConfig
- if parseConfig(w, r, &c) != nil {
- return
- }
-
- if errList, err := m.cm.UpdateConfigMap(c); err != nil {
- if err.Error() != "Validation failed!" {
- respondWithError(w, http.StatusInternalServerError, err.Error())
- } else {
- respondWithJSON(w, http.StatusInternalServerError, errList)
- }
- return
- }
- respondWithJSON(w, http.StatusOK, c.Metadata)
-}
-
-func (m *XappManager) deleteSingleConfig(w http.ResponseWriter, r *http.Request) {
- xappName, ok := getResourceId(r, w, "name")
- if ok != true {
- return
- }
-
- md := ConfigMetadata{Name: xappName, Namespace: m.cm.GetNamespace(""), ConfigName: xappName + "-appconfig"}
- m.delConfig(w, XAppConfig{Metadata: md})
-}
-
-func (m *XappManager) deleteConfig(w http.ResponseWriter, r *http.Request) {
- var c XAppConfig
- if parseConfig(w, r, &c) != nil {
- return
- }
-
- m.delConfig(w, c)
-}
-
-func (m *XappManager) delConfig(w http.ResponseWriter, c XAppConfig) {
- if _, err := m.cm.DeleteConfigMap(c); err != nil {
- respondWithError(w, http.StatusInternalServerError, err.Error())
- return
- }
- respondWithJSON(w, http.StatusNoContent, nil)
-}
-
-// Helper functions
-func respondWithError(w http.ResponseWriter, code int, message string) {
- respondWithJSON(w, code, map[string]string{"error": message})
-}
-
-func respondWithJSON(w http.ResponseWriter, code int, payload interface{}) {
- w.Header().Set("Content-Type", "application/json")
- w.WriteHeader(code)
- if payload != nil {
- response, _ := json.Marshal(payload)
- w.Write(response)
- }
-}
-
-func getResourceId(r *http.Request, w http.ResponseWriter, pattern string) (id string, ok bool) {
- if id, ok = mux.Vars(r)[pattern]; ok != true {
- Logger.Error("Couldn't resolve name/id from the request URL")
- respondWithError(w, http.StatusMethodNotAllowed, "Couldn't resolve name/id from the request URL")
- return
- }
- return
-}
-
-func parseConfig(w http.ResponseWriter, r *http.Request, req *XAppConfig) error {
- if r.Body == nil || json.NewDecoder(r.Body).Decode(&req) != nil {
- Logger.Error("Invalid request payload - url=%s", r.URL.RequestURI())
- respondWithError(w, http.StatusMethodNotAllowed, "Invalid request payload")
- return errors.New("Invalid payload")
- }
- defer r.Body.Close()
-
- return nil
-}
Code Review / ric-plt / appmgr.git / commitdiff