a1-go/pkg/restful/restful.go

   1 /*
   2 ==================================================================================
   3   Copyright (c) 2021 Samsung
   4
   5    Licensed under the Apache License, Version 2.0 (the "License");
   6    you may not use this file except in compliance with the License.
   7    You may obtain a copy of the License at
   8
   9        http://www.apache.org/licenses/LICENSE-2.0
  10
  11    Unless required by applicable law or agreed to in writing, software
  12    distributed under the License is distributed on an "AS IS" BASIS,
  13    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14    See the License for the specific language governing permissions and
  15    limitations under the License.
  16
  17    This source code is part of the near-RT RIC (RAN Intelligent Controller)
  18    platform project (RICP).
  19 ==================================================================================
  20 */
  21 package restful
  22
  23 import (
  24         "log"
  25         "os"
  26
  27         "gerrit.o-ran-sc.org/r/ric-plt/a1/pkg/a1"
  28         "gerrit.o-ran-sc.org/r/ric-plt/a1/pkg/models"
  29         "gerrit.o-ran-sc.org/r/ric-plt/a1/pkg/restapi"
  30         "gerrit.o-ran-sc.org/r/ric-plt/a1/pkg/restapi/operations"
  31         "gerrit.o-ran-sc.org/r/ric-plt/a1/pkg/restapi/operations/a1_mediator"
  32         "gerrit.o-ran-sc.org/r/ric-plt/a1/pkg/resthooks"
  33         "github.com/go-openapi/loads"
  34         "github.com/go-openapi/runtime/middleware"
  35 )
  36
  37 func NewRestful() *Restful {
  38         r := &Restful{
  39                 rh: resthooks.NewResthook(),
  40         }
  41         r.api = r.setupHandler()
  42         return r
  43 }
  44
  45 func (r *Restful) setupHandler() *operations.A1API {
  46         swaggerSpec, err := loads.Embedded(restapi.SwaggerJSON, restapi.FlatSwaggerJSON)
  47         if err != nil {
  48                 os.Exit(1)
  49         }
  50
  51         api := operations.NewA1API(swaggerSpec)
  52         api.A1MediatorA1ControllerGetAllPolicyTypesHandler = a1_mediator.A1ControllerGetAllPolicyTypesHandlerFunc(func(param a1_mediator.A1ControllerGetAllPolicyTypesParams) middleware.Responder {
  53                 a1.Logger.Debug("handler for get all policy type")
  54                 return a1_mediator.NewA1ControllerGetAllPolicyTypesOK().WithPayload(r.rh.GetAllPolicyType())
  55         })
  56
  57         api.A1MediatorA1ControllerCreatePolicyTypeHandler = a1_mediator.A1ControllerCreatePolicyTypeHandlerFunc(func(params a1_mediator.A1ControllerCreatePolicyTypeParams) middleware.Responder {
  58                 a1.Logger.Debug("handler for Create policy type ")
  59                 if err = r.rh.CreatePolicyType(models.PolicyTypeID(params.PolicyTypeID), *params.Body); err == nil {
  60                         //Increase prometheus counter
  61                         return a1_mediator.NewA1ControllerCreatePolicyTypeCreated()
  62                 }
  63                 if r.rh.IsTypeAlready(err) || r.rh.IsTypeMismatch(err) {
  64                         return a1_mediator.NewA1ControllerCreatePolicyTypeBadRequest()
  65                 }
  66                 return a1_mediator.NewA1ControllerCreatePolicyTypeServiceUnavailable()
  67
  68         })
  69
  70         api.A1MediatorA1ControllerGetPolicyTypeHandler = a1_mediator.A1ControllerGetPolicyTypeHandlerFunc(func(params a1_mediator.A1ControllerGetPolicyTypeParams) middleware.Responder {
  71                 a1.Logger.Debug("handler for get policy type from policytypeID")
  72                 return a1_mediator.NewA1ControllerGetPolicyTypeOK().WithPayload(r.rh.GetPolicyType(models.PolicyTypeID(params.PolicyTypeID)))
  73         })
  74
  75         api.A1MediatorA1ControllerCreateOrReplacePolicyInstanceHandler = a1_mediator.A1ControllerCreateOrReplacePolicyInstanceHandlerFunc(func(params a1_mediator.A1ControllerCreateOrReplacePolicyInstanceParams) middleware.Responder {
  76                 a1.Logger.Debug("handler for create policy type instance ")
  77                 if err = r.rh.CreatePolicyInstance(models.PolicyTypeID(params.PolicyTypeID), models.PolicyInstanceID(params.PolicyInstanceID), params.Body); err == nil {
  78                         return a1_mediator.NewA1ControllerCreateOrReplacePolicyInstanceAccepted()
  79                 }
  80                 if r.rh.IsValidJson(err) {
  81                         return a1_mediator.NewA1ControllerCreateOrReplacePolicyInstanceBadRequest()
  82                 }
  83                 return a1_mediator.NewA1ControllerCreateOrReplacePolicyInstanceServiceUnavailable()
  84
  85         })
  86
  87         api.A1MediatorA1ControllerGetPolicyInstanceHandler = a1_mediator.A1ControllerGetPolicyInstanceHandlerFunc(func(params a1_mediator.A1ControllerGetPolicyInstanceParams) middleware.Responder {
  88                 a1.Logger.Debug("handler for get policy instance from policytypeID")
  89                 if resp, err := r.rh.GetPolicyInstance(models.PolicyTypeID(params.PolicyTypeID), models.PolicyInstanceID(params.PolicyInstanceID)); err == nil {
  90                         return a1_mediator.NewA1ControllerGetPolicyInstanceOK().WithPayload(resp)
  91                 }
  92                 if r.rh.IsPolicyInstanceNotFound(err) {
  93                         return a1_mediator.NewA1ControllerGetPolicyInstanceNotFound
  94                 }
  95                 return a1_mediator.NewA1ControllerGetPolicyInstanceServiceUnavailable
  96         })
  97
  98         api.A1MediatorA1ControllerGetAllInstancesForTypeHandler = a1_mediator.A1ControllerGetAllInstancesForTypeHandlerFunc(func(params a1_mediator.A1ControllerGetAllInstancesForTypeParams) middleware.Responder {
  99                 a1.Logger.Debug("handler for get all policy instance")
 100                 return a1_mediator.NewA1ControllerGetPolicyInstanceOK().WithPayload(r.rh.GetAllPolicyInstance(models.PolicyTypeID(params.PolicyTypeID)))
 101         })
 102
 103         return api
 104
 105 }
 106
 107 func (r *Restful) Run() {
 108
 109         server := restapi.NewServer(r.api)
 110         defer server.Shutdown()
 111         server.Port = 8080
 112         server.Host = "0.0.0.0"
 113         if err := server.Serve(); err != nil {
 114                 log.Fatal(err.Error())
 115         }
 116 }