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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"
"net/url"
"strings"
"github.com/onap/multicloud-k8s/src/ncm/pkg/scheduler"
"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/validation"
"github.com/gorilla/mux"
)
// Used to store backend implementations objects
// Also simplifies mocking for unit testing purposes
type schedulerHandler struct {
// Interface that implements Cluster operations
// We will set this variable with a mock interface for testing
client scheduler.SchedulerManager
}
// applyClusterHandler handles requests to apply network intents for a cluster
func (h schedulerHandler) applySchedulerHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
provider := vars["cluster-provider"]
cluster := vars["cluster"]
err := h.client.ApplyNetworkIntents(provider, cluster)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
// terminateSchedulerHandler handles requests to terminate network intents for a cluster
func (h schedulerHandler) terminateSchedulerHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
provider := vars["cluster-provider"]
cluster := vars["cluster"]
err := h.client.TerminateNetworkIntents(provider, cluster)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
// statusSchedulerHandler handles requests to query status of network intents for a cluster
func (h schedulerHandler) statusSchedulerHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
provider := vars["cluster-provider"]
cluster := vars["cluster"]
qParams, err := url.ParseQuery(r.URL.RawQuery)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
var queryInstance string
if i, found := qParams["instance"]; found {
queryInstance = i[0]
} else {
queryInstance = "" // default type
}
var queryType string
if t, found := qParams["type"]; found {
queryType = t[0]
if queryType != "cluster" && queryType != "rsync" {
http.Error(w, "Invalid query type", http.StatusBadRequest)
return
}
} else {
queryType = "rsync" // default type
}
var queryOutput string
if o, found := qParams["output"]; found {
queryOutput = o[0]
if queryOutput != "summary" && queryOutput != "all" && queryOutput != "detail" {
http.Error(w, "Invalid query output", http.StatusBadRequest)
return
}
} else {
queryOutput = "all" // default output format
}
var queryApps []string
if a, found := qParams["app"]; found {
queryApps = a
for _, app := range queryApps {
errs := validation.IsValidName(app)
if len(errs) > 0 {
http.Error(w, "Invalid app query", http.StatusBadRequest)
return
}
}
} else {
queryApps = make([]string, 0)
}
var queryClusters []string
if c, found := qParams["cluster"]; found {
queryClusters = c
for _, cl := range queryClusters {
parts := strings.Split(cl, "+")
if len(parts) != 2 {
http.Error(w, "Invalid cluster query", http.StatusBadRequest)
return
}
for _, p := range parts {
errs := validation.IsValidName(p)
if len(errs) > 0 {
http.Error(w, "Invalid cluster query", http.StatusBadRequest)
return
}
}
}
} else {
queryClusters = make([]string, 0)
}
var queryResources []string
if r, found := qParams["resource"]; found {
queryResources = r
for _, res := range queryResources {
errs := validation.IsValidName(res)
if len(errs) > 0 {
http.Error(w, "Invalid resources query", http.StatusBadRequest)
return
}
}
} else {
queryResources = make([]string, 0)
}
status, iErr := h.client.NetworkIntentsStatus(provider, cluster, queryInstance, queryType, queryOutput, queryApps, queryClusters, queryResources)
if iErr != nil {
http.Error(w, iErr.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
iErr = json.NewEncoder(w).Encode(status)
if iErr != nil {
http.Error(w, iErr.Error(), http.StatusInternalServerError)
return
}
}
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