--- /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 xapp
+
+import (
+ "github.com/go-openapi/loads"
+ httptransport "github.com/go-openapi/runtime/client"
+ "github.com/go-openapi/runtime/middleware"
+ "github.com/go-openapi/strfmt"
+ "time"
+
+ apiclient "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/clientapi"
+ apicontrol "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/clientapi/control"
+ apipolicy "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/clientapi/policy"
+ apireport "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/clientapi/report"
+ apimodel "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/clientmodel"
+
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/models"
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/restapi"
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/restapi/operations"
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/restapi/operations/control"
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/restapi/operations/policy"
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/restapi/operations/report"
+)
+
+type SubscriptionReportHandler func(models.SubscriptionType, interface{}) (models.SubscriptionResult, error)
+
+type Subscriber struct {
+ localAddr string
+ localPort int
+ remoteHost string
+ remoteUrl string
+ remoteProt []string
+ timeout time.Duration
+}
+
+func NewSubscriber(host string, timo int) *Subscriber {
+ if host == "" {
+ host = "service-ricplt-submgr-http:8088"
+ }
+
+ if timo == 0 {
+ timo = 20
+ }
+
+ return &Subscriber{
+ remoteHost: host,
+ remoteUrl: "/ric/v1",
+ remoteProt: []string{"http"},
+ timeout: time.Duration(timo) * time.Second,
+ localAddr: "0.0.0.0",
+ localPort: 8088,
+ }
+}
+
+// Server interface: listen and receive subscription requests
+func (r *Subscriber) Listen(handler SubscriptionReportHandler) error {
+ swaggerSpec, err := loads.Embedded(restapi.SwaggerJSON, restapi.FlatSwaggerJSON)
+ if err != nil {
+ return err
+ }
+
+ api := operations.NewXappFrameworkAPI(swaggerSpec)
+
+ // SubscriptionType: Report
+ api.ReportSubscribeReportHandler = report.SubscribeReportHandlerFunc(
+ func(p report.SubscribeReportParams) middleware.Responder {
+ if resp, err := handler(models.SubscriptionTypeReport, p.ReportParams); err == nil {
+ return report.NewSubscribeReportCreated().WithPayload(resp)
+ }
+ return report.NewSubscribeReportInternalServerError()
+ })
+
+ // SubscriptionType: Control
+ api.ControlSubscribeControlHandler = control.SubscribeControlHandlerFunc(
+ func(p control.SubscribeControlParams) middleware.Responder {
+ if resp, err := handler(models.SubscriptionTypeControl, p.ControlParams); err == nil {
+ return control.NewSubscribeControlCreated().WithPayload(resp)
+ }
+ return control.NewSubscribeControlInternalServerError()
+ })
+
+ // SubscriptionType: policy
+ api.PolicySubscribePolicyHandler = policy.SubscribePolicyHandlerFunc(
+ func(p policy.SubscribePolicyParams) middleware.Responder {
+ if resp, err := handler(models.SubscriptionTypePolicy, p.PolicyParams); err == nil {
+ return policy.NewSubscribePolicyCreated().WithPayload(resp)
+ }
+ return policy.NewSubscribePolicyInternalServerError()
+ })
+
+ server := restapi.NewServer(api)
+ defer server.Shutdown()
+ server.Host = r.localAddr
+ server.Port = r.localPort
+
+ Logger.Info("Serving subscriptions on %s:%d\n", server.Host, server.Port)
+ if err := server.Serve(); err != nil {
+ return err
+ }
+ return nil
+}
+
+// Subscription interface for xApp: REPORT
+func (r *Subscriber) SubscribeReport(p *apimodel.ReportParams) (apimodel.SubscriptionResult, error) {
+ params := apireport.NewSubscribeReportParamsWithTimeout(r.timeout).WithReportParams(p)
+ result, err := r.CreateTransport().Report.SubscribeReport(params)
+ if err != nil {
+ return apimodel.SubscriptionResult{}, err
+ }
+
+ return result.Payload, err
+}
+
+// Subscription interface for xApp: CONTROL
+func (r *Subscriber) SubscribeControl(p *apimodel.ControlParams) (apimodel.SubscriptionResult, error) {
+ params := apicontrol.NewSubscribeControlParamsWithTimeout(r.timeout).WithControlParams(p)
+ result, err := r.CreateTransport().Control.SubscribeControl(params)
+ if err != nil {
+ return apimodel.SubscriptionResult{}, err
+ }
+
+ return result.Payload, err
+}
+
+// Subscription interface for xApp: POLICY
+func (r *Subscriber) SubscribePolicy(p *apimodel.PolicyParams) (apimodel.SubscriptionResult, error) {
+ params := apipolicy.NewSubscribePolicyParamsWithTimeout(r.timeout).WithPolicyParams(p)
+ result, err := r.CreateTransport().Policy.SubscribePolicy(params)
+ if err != nil {
+ return apimodel.SubscriptionResult{}, err
+ }
+
+ return result.Payload, err
+}
+
+func (s *Subscriber) CreateTransport() *apiclient.RICSubscription {
+ return apiclient.New(httptransport.New(s.remoteHost, s.remoteUrl, s.remoteProt), strfmt.Default)
+}
Code Review / ric-plt / xapp-frame.git / blobdiff