enrichment-coordinator-service/src/main/java/org/oransc/enrichment/controllers/producer/ProducerController.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * ONAP : ccsdk oran
   4  * ======================================================================
   5  * Copyright (C) 2019-2020 Nordix Foundation. All rights reserved.
   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
  21 package org.oransc.enrichment.controllers.producer;
  22
  23 import com.google.gson.Gson;
  24 import com.google.gson.GsonBuilder;
  25
  26 import io.swagger.annotations.Api;
  27 import io.swagger.annotations.ApiOperation;
  28 import io.swagger.annotations.ApiResponse;
  29 import io.swagger.annotations.ApiResponses;
  30
  31 import java.lang.invoke.MethodHandles;
  32 import java.util.ArrayList;
  33 import java.util.Collection;
  34 import java.util.List;
  35
  36 import org.oransc.enrichment.clients.ProducerCallbacks;
  37 import org.oransc.enrichment.clients.ProducerJobInfo;
  38 import org.oransc.enrichment.controllers.ErrorResponse;
  39 import org.oransc.enrichment.controllers.producer.ProducerRegistrationInfo.ProducerEiTypeRegistrationInfo;
  40 import org.oransc.enrichment.repository.EiJob;
  41 import org.oransc.enrichment.repository.EiJobs;
  42 import org.oransc.enrichment.repository.EiProducer;
  43 import org.oransc.enrichment.repository.EiProducers;
  44 import org.oransc.enrichment.repository.EiType;
  45 import org.oransc.enrichment.repository.EiTypes;
  46 import org.oransc.enrichment.repository.ImmutableEiProducer;
  47 import org.slf4j.Logger;
  48 import org.slf4j.LoggerFactory;
  49 import org.springframework.beans.factory.annotation.Autowired;
  50 import org.springframework.http.HttpStatus;
  51 import org.springframework.http.MediaType;
  52 import org.springframework.http.ResponseEntity;
  53 import org.springframework.web.bind.annotation.DeleteMapping;
  54 import org.springframework.web.bind.annotation.GetMapping;
  55 import org.springframework.web.bind.annotation.PathVariable;
  56 import org.springframework.web.bind.annotation.PutMapping;
  57 import org.springframework.web.bind.annotation.RequestBody;
  58 import org.springframework.web.bind.annotation.RestController;
  59
  60 @SuppressWarnings("squid:S2629") // Invoke method(s) only conditionally
  61 @RestController("ProducerController")
  62 @Api(tags = {ProducerConsts.PRODUCER_API_NAME})
  63 public class ProducerController {
  64
  65     private final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  66
  67     private static Gson gson = new GsonBuilder() //
  68         .serializeNulls() //
  69         .create(); //
  70
  71     @Autowired
  72     private EiJobs eiJobs;
  73
  74     @Autowired
  75     private EiTypes eiTypes;
  76
  77     @Autowired
  78     private EiProducers eiProducers;
  79
  80     @Autowired
  81     ProducerCallbacks producerCallbacks;
  82
  83     @GetMapping(path = ProducerConsts.API_ROOT + "/eitypes", produces = MediaType.APPLICATION_JSON_VALUE)
  84     @ApiOperation(value = "EI type identifiers", notes = "")
  85     @ApiResponses(
  86         value = { //
  87             @ApiResponse(
  88                 code = 200,
  89                 message = "EI type identifiers",
  90                 response = String.class,
  91                 responseContainer = "List"), //
  92         })
  93     public ResponseEntity<Object> getEiTypeIdentifiers( //
  94     ) {
  95         List<String> result = new ArrayList<>();
  96         for (EiType eiType : this.eiTypes.getAllEiTypes()) {
  97             result.add(eiType.getId());
  98         }
  99
 100         return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
 101     }
 102
 103     @GetMapping(path = ProducerConsts.API_ROOT + "/eitypes/{eiTypeId}", produces = MediaType.APPLICATION_JSON_VALUE)
 104     @ApiOperation(value = "Individual EI Type", notes = "")
 105     @ApiResponses(
 106         value = { //
 107             @ApiResponse(code = 200, message = "EI type", response = ProducerEiTypeInfo.class), //
 108             @ApiResponse(
 109                 code = 404,
 110                 message = "Enrichment Information type is not found",
 111                 response = ErrorResponse.ErrorInfo.class)})
 112     public ResponseEntity<Object> getEiType( //
 113         @PathVariable("eiTypeId") String eiTypeId) {
 114         try {
 115             EiType t = this.eiTypes.getType(eiTypeId);
 116             ProducerEiTypeInfo info = toEiTypeInfo(t);
 117             return new ResponseEntity<>(gson.toJson(info), HttpStatus.OK);
 118         } catch (Exception e) {
 119             return ErrorResponse.create(e, HttpStatus.NOT_FOUND);
 120         }
 121     }
 122
 123     @GetMapping(path = ProducerConsts.API_ROOT + "/eiproducers", produces = MediaType.APPLICATION_JSON_VALUE)
 124     @ApiOperation(value = "EI producer identifiers", notes = "")
 125     @ApiResponses(
 126         value = { //
 127             @ApiResponse(
 128                 code = 200,
 129                 message = "EI producer identifiers",
 130                 response = String.class,
 131                 responseContainer = "List"), //
 132         })
 133     public ResponseEntity<Object> getEiProducerIdentifiers( //
 134     ) {
 135         List<String> result = new ArrayList<>();
 136         for (EiProducer eiProducer : this.eiProducers.getAllProducers()) {
 137             result.add(eiProducer.id());
 138         }
 139
 140         return new ResponseEntity<>(gson.toJson(result), HttpStatus.OK);
 141     }
 142
 143     @GetMapping(
 144         path = ProducerConsts.API_ROOT + "/eiproducers/{eiProducerId}",
 145         produces = MediaType.APPLICATION_JSON_VALUE)
 146     @ApiOperation(value = "Individual EI producer", notes = "")
 147     @ApiResponses(
 148         value = { //
 149             @ApiResponse(code = 200, message = "EI Jobs", response = ProducerRegistrationInfo.class), //
 150             @ApiResponse(
 151                 code = 404,
 152                 message = "Enrichment Information producer is not found",
 153                 response = ErrorResponse.ErrorInfo.class)})
 154     public ResponseEntity<Object> getEiProducer( //
 155         @PathVariable("eiProducerId") String eiProducerId) {
 156         try {
 157             EiProducer p = this.eiProducers.getProducer(eiProducerId);
 158             ProducerRegistrationInfo info = toEiProducerRegistrationInfo(p);
 159             return new ResponseEntity<>(gson.toJson(info), HttpStatus.OK);
 160         } catch (Exception e) {
 161             return ErrorResponse.create(e, HttpStatus.NOT_FOUND);
 162         }
 163     }
 164
 165     @GetMapping(
 166         path = ProducerConsts.API_ROOT + "/eiproducers/{eiProducerId}/eijobs",
 167         produces = MediaType.APPLICATION_JSON_VALUE)
 168     @ApiOperation(value = "EI job definitions", notes = "EI job definitions for one EI producer")
 169     @ApiResponses(
 170         value = { //
 171             @ApiResponse(code = 200, message = "EI jobs", response = ProducerJobInfo.class, responseContainer = "List"), //
 172             @ApiResponse(
 173                 code = 404,
 174                 message = "Enrichment Information producer is not found",
 175                 response = ErrorResponse.ErrorInfo.class)})
 176     public ResponseEntity<Object> getEiProducerJobs( //
 177         @PathVariable("eiProducerId") String eiProducerId) {
 178         try {
 179             EiProducer producer = this.eiProducers.getProducer(eiProducerId);
 180             Collection<ProducerJobInfo> producerJobs = new ArrayList<>();
 181             for (EiType type : producer.eiTypes()) {
 182                 for (EiJob eiJob : this.eiJobs.getJobsForType(type)) {
 183                     ProducerJobInfo request = new ProducerJobInfo(eiJob);
 184                     producerJobs.add(request);
 185                 }
 186             }
 187
 188             return new ResponseEntity<>(gson.toJson(producerJobs), HttpStatus.OK);
 189         } catch (Exception e) {
 190             return ErrorResponse.create(e, HttpStatus.NOT_FOUND);
 191         }
 192     }
 193
 194     @PutMapping(
 195         path = ProducerConsts.API_ROOT + "/eiproducers/{eiProducerId}",
 196         produces = MediaType.APPLICATION_JSON_VALUE)
 197     @ApiOperation(value = "Individual EI producer", notes = "")
 198     @ApiResponses(
 199         value = { //
 200             @ApiResponse(code = 201, message = "Producer created", response = void.class), //
 201             @ApiResponse(code = 200, message = "Producer updated", response = void.class)}//
 202     )
 203     public ResponseEntity<Object> putEiProducer( //
 204         @PathVariable("eiProducerId") String eiProducerId, //
 205         @RequestBody ProducerRegistrationInfo registrationInfo) {
 206         try {
 207             EiProducer previousDefinition = this.eiProducers.get(eiProducerId);
 208             if (previousDefinition != null) {
 209                 for (EiType type : previousDefinition.eiTypes()) {
 210                     type.removeProducer(previousDefinition);
 211                 }
 212             }
 213
 214             registerProducer(eiProducerId, registrationInfo);
 215             if (previousDefinition != null) {
 216                 purgeTypes(previousDefinition.eiTypes());
 217             }
 218
 219             return new ResponseEntity<>(previousDefinition == null ? HttpStatus.CREATED : HttpStatus.OK);
 220         } catch (Exception e) {
 221             return ErrorResponse.create(e, HttpStatus.NOT_FOUND);
 222         }
 223     }
 224
 225     private void purgeTypes(Collection<EiType> types) {
 226         for (EiType type : types) {
 227             if (type.getProducerIds().isEmpty()) {
 228                 this.deregisterType(type);
 229             }
 230         }
 231     }
 232
 233     @DeleteMapping(
 234         path = ProducerConsts.API_ROOT + "/eiproducers/{eiProducerId}",
 235         produces = MediaType.APPLICATION_JSON_VALUE)
 236     @ApiOperation(value = "Individual EI producer", notes = "")
 237     @ApiResponses(
 238         value = { //
 239             @ApiResponse(code = 200, message = "Not used", response = void.class),
 240             @ApiResponse(code = 204, message = "Producer deleted", response = void.class),
 241             @ApiResponse(code = 404, message = "Producer is not found", response = ErrorResponse.ErrorInfo.class)})
 242     public ResponseEntity<Object> deleteEiProducer(@PathVariable("eiProducerId") String eiProducerId) {
 243         try {
 244             final EiProducer producer = this.eiProducers.getProducer(eiProducerId);
 245             deregisterProducer(producer);
 246             return new ResponseEntity<>(HttpStatus.NO_CONTENT);
 247         } catch (Exception e) {
 248             return ErrorResponse.create(e, HttpStatus.NOT_FOUND);
 249         }
 250     }
 251
 252     private EiType registerType(ProducerEiTypeRegistrationInfo typeInfo) {
 253         EiType type = this.eiTypes.get(typeInfo.eiTypeId);
 254         if (type == null) {
 255             type = new EiType(typeInfo.eiTypeId, typeInfo.jobDataSchema);
 256             this.eiTypes.put(type);
 257         }
 258         return type;
 259
 260     }
 261
 262     EiProducer createProducer(Collection<EiType> types, String producerId, ProducerRegistrationInfo registrationInfo) {
 263         return ImmutableEiProducer.builder() //
 264             .id(producerId) //
 265             .eiTypes(types) //
 266             .jobCreationCallbackUrl(registrationInfo.jobCreationCallbackUrl) //
 267             .jobDeletionCallbackUrl(registrationInfo.jobDeletionCallbackUrl) //
 268             .build();
 269     }
 270
 271     private EiProducer registerProducer(String producerId, ProducerRegistrationInfo registrationInfo) {
 272         ArrayList<EiType> types = new ArrayList<>();
 273         for (ProducerEiTypeRegistrationInfo typeInfo : registrationInfo.types) {
 274             types.add(registerType(typeInfo));
 275         }
 276         EiProducer producer = createProducer(types, producerId, registrationInfo);
 277         this.eiProducers.put(producer);
 278
 279         for (EiType type : types) {
 280             for (EiJob job : this.eiJobs.getJobsForType(type)) {
 281                 this.producerCallbacks.notifyProducerJobStarted(producer, job) //
 282                     .subscribe(//
 283                         response -> logger.debug("Producer notified OK"), //
 284                         throwable -> logger.warn("Producer rejected job {}", throwable.getMessage()) //
 285                     );
 286             }
 287             type.addProducer(producer);
 288         }
 289         return producer;
 290     }
 291
 292     private void deregisterType(EiType type) {
 293         this.eiTypes.remove(type);
 294         for (EiJob job : this.eiJobs.getJobsForType(type.getId())) {
 295             this.eiJobs.remove(job);
 296             this.logger.warn("Deleted job {} because no producers left", job.id());
 297         }
 298     }
 299
 300     private void deregisterProducer(EiProducer producer) {
 301         this.eiProducers.remove(producer);
 302         for (EiType type : producer.eiTypes()) {
 303             boolean removed = type.removeProducer(producer) != null;
 304             if (!removed) {
 305                 this.logger.error("Bug, no producer found");
 306             }
 307             if (type.getProducerIds().isEmpty()) {
 308                 deregisterType(type);
 309             }
 310         }
 311     }
 312
 313     ProducerRegistrationInfo toEiProducerRegistrationInfo(EiProducer p) {
 314         Collection<ProducerEiTypeRegistrationInfo> types = new ArrayList<>();
 315         for (EiType type : p.eiTypes()) {
 316             types.add(toEiTypeRegistrationInfo(type));
 317         }
 318         return new ProducerRegistrationInfo(types, p.jobCreationCallbackUrl(), p.jobDeletionCallbackUrl());
 319     }
 320
 321     private ProducerEiTypeRegistrationInfo toEiTypeRegistrationInfo(EiType type) {
 322         return new ProducerEiTypeRegistrationInfo(type.getJobDataSchema(), type.getId());
 323     }
 324
 325     private ProducerEiTypeInfo toEiTypeInfo(EiType t) {
 326         return new ProducerEiTypeInfo(t.getJobDataSchema(), t.getProducerIds());
 327     }
 328 }