116 lines
3.5 KiB
Go
116 lines
3.5 KiB
Go
//
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// Copyright 2019 AT&T Intellectual Property
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// Copyright 2019 Nokia
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// This source code is part of the near-RT RIC (RAN Intelligent Controller)
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// platform project (RICP).
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package controllers
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import (
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"e2mgr/e2managererrors"
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"e2mgr/logger"
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"e2mgr/models"
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"e2mgr/providers/httpmsghandlerprovider"
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"encoding/json"
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"net/http"
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"net/http/httputil"
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"strings"
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)
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type IE2TController interface {
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GetE2TInstances(writer http.ResponseWriter, r *http.Request)
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}
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type E2TController struct {
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logger *logger.Logger
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handlerProvider *httpmsghandlerprovider.IncomingRequestHandlerProvider
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}
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func NewE2TController(logger *logger.Logger, handlerProvider *httpmsghandlerprovider.IncomingRequestHandlerProvider) *E2TController {
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return &E2TController{
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logger: logger,
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handlerProvider: handlerProvider,
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}
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}
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func (c *E2TController) GetE2TInstances(writer http.ResponseWriter, r *http.Request) {
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c.logger.Infof("[Client -> E2 Manager] #E2TController.GetE2TInstances - request: %v", c.prettifyRequest(r))
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c.handleRequest(writer, &r.Header, httpmsghandlerprovider.GetE2TInstancesRequest, nil, false)
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}
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func (c *E2TController) handleRequest(writer http.ResponseWriter, header *http.Header, requestName httpmsghandlerprovider.IncomingRequest, request models.Request, validateHeader bool) {
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handler, err := c.handlerProvider.GetHandler(requestName)
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if err != nil {
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c.handleErrorResponse(err, writer)
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return
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}
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response, err := handler.Handle(request)
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if err != nil {
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c.handleErrorResponse(err, writer)
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return
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}
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result, err := response.Marshal()
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if err != nil {
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c.handleErrorResponse(err, writer)
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return
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}
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c.logger.Infof("[E2 Manager -> Client] #E2TController.handleRequest - response: %s", result)
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writer.Header().Set("Content-Type", "application/json")
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writer.Write(result)
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}
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func (c *E2TController) handleErrorResponse(err error, writer http.ResponseWriter) {
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var errorResponseDetails models.ErrorResponse
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var httpError int
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if err != nil {
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switch err.(type) {
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case *e2managererrors.RnibDbError:
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e2Error, _ := err.(*e2managererrors.RnibDbError)
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errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
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httpError = http.StatusInternalServerError
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default:
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e2Error := e2managererrors.NewInternalError()
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errorResponseDetails = models.ErrorResponse{Code: e2Error.Code, Message: e2Error.Message}
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httpError = http.StatusInternalServerError
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}
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}
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errorResponse, _ := json.Marshal(errorResponseDetails)
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c.logger.Errorf("[E2 Manager -> Client] #E2TController.handleErrorResponse - http status: %d, error response: %+v", httpError, errorResponseDetails)
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writer.Header().Set("Content-Type", "application/json")
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writer.WriteHeader(httpError)
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_, err = writer.Write(errorResponse)
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}
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func (c *E2TController) prettifyRequest(request *http.Request) string {
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dump, _ := httputil.DumpRequest(request, true)
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requestPrettyPrint := strings.Replace(string(dump), "\r\n", " ", -1)
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return strings.Replace(requestPrettyPrint, "\n", "", -1)
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}
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