webapp-backend/src/main/java/org/oransc/portal/nonrtric/controlpanel/controller/EnrichmentController.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2020 Nordix Foundation
   6  * %%
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ========================LICENSE_END===================================
  19  */
  20 package org.oransc.portal.nonrtric.controlpanel.controller;
  21
  22 import com.google.gson.GsonBuilder;
  23 import com.google.gson.JsonArray;
  24 import com.google.gson.JsonElement;
  25 import com.google.gson.JsonParser;
  26
  27 import io.swagger.annotations.ApiOperation;
  28
  29 import java.lang.invoke.MethodHandles;
  30 import java.util.ArrayList;
  31 import java.util.List;
  32
  33 import org.oransc.portal.nonrtric.controlpanel.ControlPanelConstants;
  34 import org.oransc.portal.nonrtric.controlpanel.eiproducerapi.EiProducerApi;
  35 import org.oransc.portal.nonrtric.controlpanel.model.JobInfo;
  36 import org.oransc.portal.nonrtric.controlpanel.model.ProducerInfo;
  37 import org.oransc.portal.nonrtric.controlpanel.model.ProducerRegistrationInfo;
  38 import org.oransc.portal.nonrtric.controlpanel.model.ProducerStatusInfo;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41 import org.springframework.beans.factory.annotation.Autowired;
  42 import org.springframework.http.HttpStatus;
  43 import org.springframework.http.MediaType;
  44 import org.springframework.http.ResponseEntity;
  45 import org.springframework.util.Assert;
  46 import org.springframework.web.bind.annotation.GetMapping;
  47 import org.springframework.web.bind.annotation.RequestMapping;
  48 import org.springframework.web.bind.annotation.RestController;
  49
  50 /**
  51  * Proxies calls from the front end to the EI Producer API.
  52  *
  53  * If a method throws RestClientResponseException, it is handled by
  54  * {@link CustomResponseEntityExceptionHandler#handleProxyMethodException(Exception, org.springframework.web.context.request.WebRequest)}
  55  * which returns status 502. All other exceptions are handled by Spring which
  56  * returns status 500.
  57  */
  58 @RestController
  59 @RequestMapping(value = EnrichmentController.CONTROLLER_PATH, produces = MediaType.APPLICATION_JSON_VALUE)
  60 public class EnrichmentController {
  61
  62     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  63
  64     // Publish paths in constants so tests are easy to write
  65     public static final String CONTROLLER_PATH = ControlPanelConstants.ENDPOINT_PREFIX + "/enrichment";
  66     // Endpoints
  67     public static final String EI_TYPES = "eitypes";
  68     public static final String EI_PRODUCERS = "eiproducers";
  69     public static final String EI_JOBS = "eijobs";
  70     public static final String EI_TYPE_ID = "ei_type_id";
  71     public static final String EI_PRODUCER_ID = "ei_producer_id";
  72     public static final String STATUS = "status";
  73
  74     // Populated by the autowired constructor
  75     private final EiProducerApi eiProducerApi;
  76     public static com.google.gson.Gson gson = new GsonBuilder().create();
  77
  78     @Autowired
  79     public EnrichmentController(final EiProducerApi eiProducerApi) {
  80         Assert.notNull(eiProducerApi, "API must not be null");
  81         this.eiProducerApi = eiProducerApi;
  82         logger.debug("enrichment: configured with client type {}", eiProducerApi.getClass().getName());
  83     }
  84
  85     @ApiOperation(value = "Get the EI job definitions for one EI producer")
  86     @GetMapping(EI_JOBS)
  87     public ResponseEntity<String> getEiJobs() {
  88         logger.debug("getEiJobs");
  89         ResponseEntity<String> response = this.eiProducerApi.getAllEiProducerIds();
  90         JsonArray bodyJson = JsonParser.parseString(response.getBody()).getAsJsonArray();
  91         List<JobInfo> allJobs = new ArrayList<>();
  92         for (JsonElement producerId : bodyJson) {
  93             allJobs.addAll(getJobs(producerId));
  94         }
  95         return new ResponseEntity<>(gson.toJson(allJobs), HttpStatus.OK);
  96     }
  97
  98     private List<JobInfo> getJobs(JsonElement producerId) {
  99         ResponseEntity<List<JobInfo>> jobsResponse =
 100             this.eiProducerApi.getEiJobsForOneEiProducer(producerId.getAsString());
 101         return jobsResponse.getBody();
 102     }
 103
 104     @ApiOperation(value = "Get EI producers")
 105     @GetMapping(EI_PRODUCERS)
 106     public ResponseEntity<String> getEiProducers() {
 107         logger.debug("getEiProducers");
 108         ResponseEntity<String> response = this.eiProducerApi.getAllEiProducerIds();
 109         JsonArray bodyJson = JsonParser.parseString(response.getBody()).getAsJsonArray();
 110         List<ProducerInfo> producers = new ArrayList<>();
 111         for (JsonElement producerId : bodyJson) {
 112             ProducerInfo producerInfo = ProducerInfo.builder() //
 113                 .id(producerId.getAsString()) //
 114                 .types(getSupportedTypes(producerId)) //
 115                 .status(getProducerStatus(producerId)) //
 116                 .build();
 117             producers.add(producerInfo);
 118         }
 119
 120         return new ResponseEntity<>(gson.toJson(producers), HttpStatus.OK);
 121     }
 122
 123     private String[] getSupportedTypes(JsonElement producerId) {
 124         ResponseEntity<ProducerRegistrationInfo> producerResponse =
 125             this.eiProducerApi.getEiProducer(producerId.getAsString());
 126         List<String> supportedTypes = new ArrayList<>();
 127         for (String type : producerResponse.getBody().supportedTypeIds) {
 128             supportedTypes.add(type);
 129         }
 130         return supportedTypes.toArray(new String[0]);
 131     }
 132
 133     private String getProducerStatus(JsonElement producerId) {
 134         ResponseEntity<ProducerStatusInfo> statusResponse =
 135             this.eiProducerApi.getEiProducerStatus(producerId.getAsString());
 136         return statusResponse.getBody().opState.toString();
 137     }
 138 }