2 // Copyright 2019 AT&T Intellectual Property
3 // Copyright 2019 Nokia
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
9 // http://www.apache.org/licenses/LICENSE-2.0
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.
17 // This source code is part of the near-RT RIC (RAN Intelligent Controller)
18 // platform project (RICP).
25 "e2mgr/e2managererrors"
33 AddE2TInstanceApiSuffix = "e2t"
34 AssociateRanToE2TInstanceApiSuffix = "associate-ran-to-e2t"
35 DissociateRanE2TInstanceApiSuffix = "dissociate-ran"
38 type RoutingManagerClient struct {
40 config *configuration.Configuration
44 type IRoutingManagerClient interface {
45 AddE2TInstance(e2tAddress string) error
46 AssociateRanToE2TInstance(e2tAddress string, ranName string) error
47 DissociateRanE2TInstance(e2tAddress string, ranName string) error
48 DissociateAllRans(e2tAddresses []string) error
51 func NewRoutingManagerClient(logger *logger.Logger, config *configuration.Configuration, httpClient HttpClient) *RoutingManagerClient {
52 return &RoutingManagerClient{
55 httpClient: httpClient,
59 func (c *RoutingManagerClient) AddE2TInstance(e2tAddress string) error {
61 data := models.NewRoutingManagerE2TData(e2tAddress)
62 url := c.config.RoutingManager.BaseUrl + AddE2TInstanceApiSuffix
64 return c.PostMessage(data, url)
67 func (c *RoutingManagerClient) AssociateRanToE2TInstance(e2tAddress string, ranName string) error {
69 data := models.RoutingManagerE2TDataList{models.NewRoutingManagerE2TData(e2tAddress, ranName)}
70 url := c.config.RoutingManager.BaseUrl + AssociateRanToE2TInstanceApiSuffix
72 return c.PostMessage(data, url)
75 func (c *RoutingManagerClient) DissociateRanE2TInstance(e2tAddress string, ranName string) error {
77 data := models.RoutingManagerE2TDataList{models.NewRoutingManagerE2TData(e2tAddress, ranName)}
78 url := c.config.RoutingManager.BaseUrl + DissociateRanE2TInstanceApiSuffix
80 return c.PostMessage(data, url)
83 func (c *RoutingManagerClient) DissociateAllRans(e2tAddresses []string) error {
85 data := mapE2TAddressesToE2DataList(e2tAddresses)
86 url := c.config.RoutingManager.BaseUrl + DissociateRanE2TInstanceApiSuffix
88 return c.PostMessage(data, url)
91 func (c *RoutingManagerClient) PostMessage(data interface{}, url string) error {
92 marshaled, err := json.Marshal(data)
95 return e2managererrors.NewRoutingManagerError()
98 body := bytes.NewBuffer(marshaled)
99 c.logger.Infof("[E2 Manager -> Routing Manager] #RoutingManagerClient.PostMessage - url: %s, request body: %+v", url, body)
101 resp, err := c.httpClient.Post(url, "application/json", body)
104 c.logger.Errorf("#RoutingManagerClient.PostMessage - failed sending request. error: %s", err)
105 return e2managererrors.NewRoutingManagerError()
108 defer resp.Body.Close()
110 if resp.StatusCode >= http.StatusOK && resp.StatusCode < http.StatusMultipleChoices {
111 c.logger.Infof("[Routing Manager -> E2 Manager] #RoutingManagerClient.PostMessage - success. http status code: %d", resp.StatusCode)
115 c.logger.Errorf("[Routing Manager -> E2 Manager] #RoutingManagerClient.PostMessage - failure. http status code: %d", resp.StatusCode)
116 return e2managererrors.NewRoutingManagerError()
119 func mapE2TAddressesToE2DataList(e2tAddresses []string) models.RoutingManagerE2TDataList {
120 e2tDataList := make(models.RoutingManagerE2TDataList, len(e2tAddresses))
122 for i, v := range e2tAddresses {
123 e2tDataList[i] = models.NewRoutingManagerE2TData(v)