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                 if resp, err := r.rh.GetAllPolicyInstance(models.PolicyTypeID(params.PolicyTypeID)); err == nil {
 101                         if resp != nil {
 102                                 return a1_mediator.NewA1ControllerGetAllInstancesForTypeOK().WithPayload(resp)
 103                         }
 104                 }
 105                 if r.rh.IsPolicyInstanceNotFound(err) {
 106                         return a1_mediator.NewA1ControllerGetPolicyInstanceNotFound()
 107                 }
 108                 return a1_mediator.NewA1ControllerGetAllInstancesForTypeServiceUnavailable()
 109
 110         })
 111
 112         return api
 113
 114 }
 115
 116 func (r *Restful) Run() {
 117
 118         server := restapi.NewServer(r.api)
 119         defer server.Shutdown()
 120         server.Port = 8080
 121         server.Host = "0.0.0.0"
 122         if err := server.Serve(); err != nil {
 123                 log.Fatal(err.Error())
 124         }
 125 }