policy-agent/src/test/java/org/oransc/policyagent/ApplicationTest.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2019 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
  21 package org.oransc.policyagent;
  22
  23 import static org.assertj.core.api.Assertions.assertThat;
  24 import static org.awaitility.Awaitility.await;
  25 import static org.junit.jupiter.api.Assertions.assertEquals;
  26 import static org.junit.jupiter.api.Assertions.assertTrue;
  27 import static org.mockito.ArgumentMatchers.any;
  28 import static org.mockito.Mockito.doReturn;
  29
  30 import com.google.gson.Gson;
  31 import com.google.gson.GsonBuilder;
  32 import com.google.gson.JsonArray;
  33 import com.google.gson.JsonElement;
  34 import com.google.gson.JsonParser;
  35
  36 import java.nio.charset.StandardCharsets;
  37 import java.time.Duration;
  38 import java.time.Instant;
  39 import java.util.ArrayList;
  40 import java.util.List;
  41
  42 import org.junit.jupiter.api.AfterEach;
  43 import org.junit.jupiter.api.BeforeEach;
  44 import org.junit.jupiter.api.Test;
  45 import org.junit.jupiter.api.extension.ExtendWith;
  46 import org.oransc.policyagent.clients.AsyncRestClient;
  47 import org.oransc.policyagent.configuration.ApplicationConfig;
  48 import org.oransc.policyagent.configuration.ImmutableRicConfig;
  49 import org.oransc.policyagent.configuration.RicConfig;
  50 import org.oransc.policyagent.controllers.PolicyInfo;
  51 import org.oransc.policyagent.controllers.ServiceRegistrationInfo;
  52 import org.oransc.policyagent.controllers.ServiceStatus;
  53 import org.oransc.policyagent.exceptions.ServiceException;
  54 import org.oransc.policyagent.repository.ImmutablePolicy;
  55 import org.oransc.policyagent.repository.ImmutablePolicyType;
  56 import org.oransc.policyagent.repository.Lock.LockType;
  57 import org.oransc.policyagent.repository.Policies;
  58 import org.oransc.policyagent.repository.Policy;
  59 import org.oransc.policyagent.repository.PolicyType;
  60 import org.oransc.policyagent.repository.PolicyTypes;
  61 import org.oransc.policyagent.repository.Ric;
  62 import org.oransc.policyagent.repository.Ric.RicState;
  63 import org.oransc.policyagent.repository.Rics;
  64 import org.oransc.policyagent.repository.Services;
  65 import org.oransc.policyagent.tasks.RicSupervision;
  66 import org.oransc.policyagent.tasks.ServiceSupervision;
  67 import org.oransc.policyagent.utils.MockA1Client;
  68 import org.oransc.policyagent.utils.MockA1ClientFactory;
  69 import org.slf4j.Logger;
  70 import org.slf4j.LoggerFactory;
  71 import org.springframework.beans.factory.annotation.Autowired;
  72 import org.springframework.boot.test.context.SpringBootTest;
  73 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
  74 import org.springframework.boot.test.context.TestConfiguration;
  75 import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
  76 import org.springframework.boot.web.server.LocalServerPort;
  77 import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
  78 import org.springframework.context.ApplicationContext;
  79 import org.springframework.context.annotation.Bean;
  80 import org.springframework.http.HttpStatus;
  81 import org.springframework.http.ResponseEntity;
  82 import org.springframework.test.context.junit.jupiter.SpringExtension;
  83 import org.springframework.web.reactive.function.client.WebClientResponseException;
  84
  85 import reactor.core.publisher.Mono;
  86 import reactor.test.StepVerifier;
  87 import reactor.util.annotation.Nullable;
  88
  89 @ExtendWith(SpringExtension.class)
  90 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
  91 public class ApplicationTest {
  92     private static final Logger logger = LoggerFactory.getLogger(ApplicationTest.class);
  93
  94     @Autowired
  95     ApplicationContext context;
  96
  97     @Autowired
  98     private Rics rics;
  99
 100     @Autowired
 101     private Policies policies;
 102
 103     @Autowired
 104     private PolicyTypes policyTypes;
 105
 106     @Autowired
 107     MockA1ClientFactory a1ClientFactory;
 108
 109     @Autowired
 110     RicSupervision supervision;
 111
 112     @Autowired
 113     Services services;
 114
 115     private static Gson gson = new GsonBuilder() //
 116         .serializeNulls() //
 117         .create(); //
 118
 119     public static class MockApplicationConfig extends ApplicationConfig {
 120         @Override
 121         public String getLocalConfigurationFilePath() {
 122             return ""; // No config file loaded for the test
 123         }
 124     }
 125
 126     /**
 127      * Overrides the BeanFactory.
 128      */
 129     @TestConfiguration
 130     static class TestBeanFactory {
 131         private final PolicyTypes policyTypes = new PolicyTypes();
 132         private final Services services = new Services();
 133         private final Policies policies = new Policies();
 134         MockA1ClientFactory a1ClientFactory = null;
 135
 136         @Bean
 137         public ApplicationConfig getApplicationConfig() {
 138             return new MockApplicationConfig();
 139         }
 140
 141         @Bean
 142         MockA1ClientFactory getA1ClientFactory() {
 143             if (a1ClientFactory == null) {
 144                 this.a1ClientFactory = new MockA1ClientFactory(this.policyTypes);
 145             }
 146             return this.a1ClientFactory;
 147         }
 148
 149         @Bean
 150         public PolicyTypes getPolicyTypes() {
 151             return this.policyTypes;
 152         }
 153
 154         @Bean
 155         Policies getPolicies() {
 156             return this.policies;
 157         }
 158
 159         @Bean
 160         Services getServices() {
 161             return this.services;
 162         }
 163
 164         @Bean
 165         public ServiceSupervision getServiceSupervision() {
 166             Duration checkInterval = Duration.ofMillis(1);
 167             return new ServiceSupervision(this.services, this.policies, this.getA1ClientFactory(), checkInterval);
 168         }
 169
 170         @Bean
 171         public ServletWebServerFactory servletContainer() {
 172             return new TomcatServletWebServerFactory();
 173         }
 174
 175     }
 176
 177     @LocalServerPort
 178     private int port;
 179
 180     @BeforeEach
 181     public void reset() {
 182         rics.clear();
 183         policies.clear();
 184         policyTypes.clear();
 185         services.clear();
 186         a1ClientFactory.reset();
 187     }
 188
 189     @AfterEach
 190     public void verifyNoRicLocks() {
 191         for (Ric ric : this.rics.getRics()) {
 192             ric.getLock().lockBlocking(LockType.EXCLUSIVE);
 193             ric.getLock().unlockBlocking();
 194             assertThat(ric.getLock().getLockCounter()).isEqualTo(0);
 195             assertThat(ric.getState()).isEqualTo(Ric.RicState.AVAILABLE);
 196         }
 197     }
 198
 199     @Test
 200     public void testGetRics() throws Exception {
 201         addRic("ric1");
 202         this.addPolicyType("type1", "ric1");
 203         String url = "/rics?policyType=type1";
 204         String rsp = restClient().get(url).block();
 205         assertThat(rsp).contains("ric1");
 206
 207         // nameless type for ORAN A1 1.1
 208         addRic("ric2");
 209         this.addPolicyType("", "ric2");
 210         url = "/rics?policyType=";
 211         rsp = restClient().get(url).block();
 212         assertThat(rsp).contains("ric2");
 213         assertThat(rsp).doesNotContain("ric1");
 214         assertThat(rsp).contains("AVAILABLE");
 215
 216         // All RICs
 217         rsp = restClient().get("/rics").block();
 218         assertThat(rsp).contains("ric2");
 219         assertThat(rsp).contains("ric1");
 220
 221         // Non existing policy type
 222         url = "/rics?policyType=XXXX";
 223         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 224     }
 225
 226     @Test
 227     public void testSynchronization() throws Exception {
 228         // Two polictypes will be put in the NearRT RICs
 229         PolicyTypes nearRtRicPolicyTypes = new PolicyTypes();
 230         nearRtRicPolicyTypes.put(createPolicyType("typeName"));
 231         nearRtRicPolicyTypes.put(createPolicyType("typeName2"));
 232         this.a1ClientFactory.setPolicyTypes(nearRtRicPolicyTypes);
 233
 234         // One type and one instance added to the agent storage
 235         final String ric1Name = "ric1";
 236         Ric ric1 = addRic(ric1Name);
 237         Policy policy2 = addPolicy("policyId2", "typeName", "service", ric1Name);
 238         Ric ric2 = addRic("ric2");
 239
 240         getA1Client(ric1Name).putPolicy(policy2); // put it in the RIC
 241         policies.remove(policy2); // Remove it from the repo -> should be deleted in the RIC
 242
 243         String policyId = "policyId";
 244         Policy policy = addPolicy(policyId, "typeName", "service", ric1Name); // This should be created in the RIC
 245         supervision.checkAllRics(); // The created policy should be put in the RIC
 246
 247         // Wait until synch is completed
 248         await().untilAsserted(() -> RicState.SYNCHRONIZING.equals(rics.getRic(ric1Name).getState()));
 249         await().untilAsserted(() -> RicState.AVAILABLE.equals(rics.getRic(ric1Name).getState()));
 250         await().untilAsserted(() -> RicState.AVAILABLE.equals(rics.getRic("ric2").getState()));
 251
 252         Policies ricPolicies = getA1Client(ric1Name).getPolicies();
 253         assertThat(ricPolicies.size()).isEqualTo(1);
 254         Policy ricPolicy = ricPolicies.get(policyId);
 255         assertThat(ricPolicy.json()).isEqualTo(policy.json());
 256
 257         // Both types should be in the agent storage after the synch
 258         assertThat(ric1.getSupportedPolicyTypes().size()).isEqualTo(2);
 259         assertThat(ric2.getSupportedPolicyTypes().size()).isEqualTo(2);
 260     }
 261
 262     @Test
 263     public void testGetRicForManagedElement_thenReturnCorrectRic() throws Exception {
 264         String ricName = "ric1";
 265         String managedElementId = "kista_1";
 266         addRic(ricName, managedElementId);
 267
 268         String url = "/ric?managedElementId=" + managedElementId;
 269         String rsp = restClient().get(url).block();
 270         assertThat(rsp).isEqualTo(ricName);
 271
 272         // test GET RIC for ManagedElement that does not exist
 273         url = "/ric?managedElementId=" + "junk";
 274         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 275     }
 276
 277     private String putPolicyUrl(String serviceName, String ricName, String policyTypeName, String policyInstanceId) {
 278         if (policyTypeName.isEmpty()) {
 279             return "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName;
 280         } else {
 281             return "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName + "&type="
 282                 + policyTypeName;
 283         }
 284     }
 285
 286     @Test
 287     public void testPutPolicy() throws Exception {
 288         String serviceName = "service1";
 289         String ricName = "ric1";
 290         String policyTypeName = "type1";
 291         String policyInstanceId = "instance1";
 292
 293         putService(serviceName);
 294         addPolicyType(policyTypeName, ricName);
 295
 296         String url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 297         final String policyBody = jsonString();
 298         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 299
 300         restClient().put(url, policyBody).block();
 301
 302         Policy policy = policies.getPolicy(policyInstanceId);
 303         assertThat(policy).isNotNull();
 304         assertThat(policy.id()).isEqualTo(policyInstanceId);
 305         assertThat(policy.ownerServiceName()).isEqualTo(serviceName);
 306         assertThat(policy.ric().name()).isEqualTo("ric1");
 307
 308         url = "/policies";
 309         String rsp = restClient().get(url).block();
 310         assertThat(rsp.contains(policyInstanceId)).isTrue();
 311
 312         url = "/policy?id=" + policyInstanceId;
 313         rsp = restClient().get(url).block();
 314         assertThat(rsp).isEqualTo(policyBody);
 315
 316         // Test of error codes
 317         url = putPolicyUrl(serviceName, ricName + "XX", policyTypeName, policyInstanceId);
 318         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 319
 320         url = putPolicyUrl(serviceName, ricName, policyTypeName + "XX", policyInstanceId);
 321         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 322
 323         url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 324         this.rics.getRic(ricName).setState(Ric.RicState.SYNCHRONIZING);
 325         testErrorCode(restClient().put(url, policyBody), HttpStatus.LOCKED);
 326         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 327     }
 328
 329     @Test
 330     /**
 331      * Test that HttpStatus and body from failing REST call to A1 is passed on to
 332      * the caller.
 333      *
 334      * @throws ServiceException
 335      */
 336     public void testErrorFromRIC() throws ServiceException {
 337         putService("service1");
 338         addPolicyType("type1", "ric1");
 339
 340         String url = putPolicyUrl("service1", "ric1", "type1", "id1");
 341         MockA1Client a1Client = a1ClientFactory.getOrCreateA1Client("ric1");
 342         HttpStatus httpStatus = HttpStatus.INTERNAL_SERVER_ERROR;
 343         String responseBody = "Refused";
 344         byte[] responseBodyBytes = responseBody.getBytes(StandardCharsets.UTF_8);
 345
 346         WebClientResponseException a1Exception = new WebClientResponseException(httpStatus.value(), "statusText", null,
 347             responseBodyBytes, StandardCharsets.UTF_8, null);
 348         doReturn(Mono.error(a1Exception)).when(a1Client).putPolicy(any());
 349
 350         // PUT Policy
 351         testErrorCode(restClient().put(url, "{}"), httpStatus, responseBody);
 352
 353         // DELETE POLICY
 354         this.addPolicy("instance1", "type1", "service1", "ric1");
 355         doReturn(Mono.error(a1Exception)).when(a1Client).deletePolicy(any());
 356         testErrorCode(restClient().delete("/policy?id=instance1"), httpStatus, responseBody);
 357
 358         // GET STATUS
 359         this.addPolicy("instance1", "type1", "service1", "ric1");
 360         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 361         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus, responseBody);
 362
 363         // Check that empty response body is OK
 364         a1Exception = new WebClientResponseException(httpStatus.value(), "", null, null, null, null);
 365         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 366         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus);
 367     }
 368
 369     @Test
 370     public void testPutTypelessPolicy() throws Exception {
 371         putService("service1");
 372         addPolicyType("", "ric1");
 373         String url = putPolicyUrl("service1", "ric1", "", "id1");
 374         restClient().put(url, jsonString()).block();
 375
 376         String rsp = restClient().get("/policies").block();
 377         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 378         assertThat(info).size().isEqualTo(1);
 379         PolicyInfo policyInfo = info.get(0);
 380         assertThat(policyInfo.id.equals("id1")).isTrue();
 381         assertThat(policyInfo.type.equals("")).isTrue();
 382     }
 383
 384     @Test
 385     public void testRefuseToUpdatePolicy() throws Exception {
 386         // Test that only the json can be changed for a already created policy
 387         // In this case service is attempted to be changed
 388         this.addRic("ric1");
 389         this.addRic("ricXXX");
 390         this.addPolicy("instance1", "type1", "service1", "ric1");
 391         this.addPolicy("instance2", "type1", "service1", "ricXXX");
 392
 393         // Try change ric1 -> ricXXX
 394         String urlWrongRic = putPolicyUrl("service1", "ricXXX", "type1", "instance1");
 395         testErrorCode(restClient().put(urlWrongRic, jsonString()), HttpStatus.CONFLICT);
 396     }
 397
 398     @Test
 399     public void testGetPolicy() throws Exception {
 400         String url = "/policy?id=id";
 401         Policy policy = addPolicy("id", "typeName", "service1", "ric1");
 402         {
 403             String rsp = restClient().get(url).block();
 404             assertThat(rsp).isEqualTo(policy.json());
 405         }
 406         {
 407             policies.remove(policy);
 408             testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 409         }
 410     }
 411
 412     @Test
 413     public void testDeletePolicy() throws Exception {
 414         addPolicy("id", "typeName", "service1", "ric1");
 415         assertThat(policies.size()).isEqualTo(1);
 416
 417         String url = "/policy?id=id";
 418         ResponseEntity<String> entity = restClient().deleteForEntity(url).block();
 419
 420         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.NO_CONTENT);
 421         assertThat(policies.size()).isEqualTo(0);
 422
 423         // Delete a non existing policy
 424         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 425     }
 426
 427     @Test
 428     public void testGetPolicySchemas() throws Exception {
 429         addPolicyType("type1", "ric1");
 430         addPolicyType("type2", "ric2");
 431
 432         String url = "/policy_schemas";
 433         String rsp = this.restClient().get(url).block();
 434         assertThat(rsp).contains("type1");
 435         assertThat(rsp).contains("[{\"title\":\"type2\"}");
 436
 437         List<String> info = parseSchemas(rsp);
 438         assertThat(info.size()).isEqualTo(2);
 439
 440         url = "/policy_schemas?ric=ric1";
 441         rsp = restClient().get(url).block();
 442         assertThat(rsp).contains("type1");
 443         info = parseSchemas(rsp);
 444         assertThat(info.size()).isEqualTo(1);
 445
 446         // Get schema for non existing RIC
 447         url = "/policy_schemas?ric=ric1XXX";
 448         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 449     }
 450
 451     @Test
 452     public void testGetPolicySchema() throws Exception {
 453         addPolicyType("type1", "ric1");
 454         addPolicyType("type2", "ric2");
 455
 456         String url = "/policy_schema?id=type1";
 457         String rsp = restClient().get(url).block();
 458         logger.info(rsp);
 459         assertThat(rsp).contains("type1");
 460         assertThat(rsp).contains("title");
 461
 462         // Get non existing schema
 463         url = "/policy_schema?id=type1XX";
 464         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 465     }
 466
 467     @Test
 468     public void testGetPolicyTypes() throws Exception {
 469         addPolicyType("type1", "ric1");
 470         addPolicyType("type2", "ric2");
 471
 472         String url = "/policy_types";
 473         String rsp = restClient().get(url).block();
 474         assertThat(rsp).isEqualTo("[\"type2\",\"type1\"]");
 475
 476         url = "/policy_types?ric=ric1";
 477         rsp = restClient().get(url).block();
 478         assertThat(rsp).isEqualTo("[\"type1\"]");
 479
 480         // Get policy types for non existing RIC
 481         url = "/policy_types?ric=ric1XXX";
 482         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 483     }
 484
 485     @Test
 486     public void testGetPolicies() throws Exception {
 487         addPolicy("id1", "type1", "service1");
 488
 489         String url = "/policies";
 490         String rsp = restClient().get(url).block();
 491         logger.info(rsp);
 492         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 493         assertThat(info).size().isEqualTo(1);
 494         PolicyInfo policyInfo = info.get(0);
 495         assert (policyInfo.validate());
 496         assertThat(policyInfo.id).isEqualTo("id1");
 497         assertThat(policyInfo.type).isEqualTo("type1");
 498         assertThat(policyInfo.service).isEqualTo("service1");
 499     }
 500
 501     @Test
 502     public void testGetPoliciesFilter() throws Exception {
 503         addPolicy("id1", "type1", "service1");
 504         addPolicy("id2", "type1", "service2");
 505         addPolicy("id3", "type2", "service1");
 506
 507         String url = "/policies?type=type1";
 508         String rsp = restClient().get(url).block();
 509         logger.info(rsp);
 510         assertThat(rsp).contains("id1");
 511         assertThat(rsp).contains("id2");
 512         assertThat(rsp.contains("id3")).isFalse();
 513
 514         url = "/policies?type=type1&service=service2";
 515         rsp = restClient().get(url).block();
 516         logger.info(rsp);
 517         assertThat(rsp.contains("id1")).isFalse();
 518         assertThat(rsp).contains("id2");
 519         assertThat(rsp.contains("id3")).isFalse();
 520
 521         // Test get policies for non existing type
 522         url = "/policies?type=type1XXX";
 523         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 524
 525         // Test get policies for non existing RIC
 526         url = "/policies?ric=XXX";
 527         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 528     }
 529
 530     @Test
 531     public void testGetPolicyIdsFilter() throws Exception {
 532         addPolicy("id1", "type1", "service1", "ric1");
 533         addPolicy("id2", "type1", "service2", "ric1");
 534         addPolicy("id3", "type2", "service1", "ric1");
 535
 536         String url = "/policy_ids?type=type1";
 537         String rsp = restClient().get(url).block();
 538         logger.info(rsp);
 539         assertThat(rsp).contains("id1");
 540         assertThat(rsp).contains("id2");
 541         assertThat(rsp.contains("id3")).isFalse();
 542
 543         url = "/policy_ids?type=type1&service=service1&ric=ric1";
 544         rsp = restClient().get(url).block();
 545         assertThat(rsp).isEqualTo("[\"id1\"]");
 546
 547         // Test get policy ids for non existing type
 548         url = "/policy_ids?type=type1XXX";
 549         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 550
 551         // Test get policy ids for non existing RIC
 552         url = "/policy_ids?ric=XXX";
 553         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 554     }
 555
 556     @Test
 557     public void testPutAndGetService() throws Exception {
 558         // PUT
 559         putService("name", 0, HttpStatus.CREATED);
 560         putService("name", 0, HttpStatus.OK);
 561
 562         // GET one service
 563         String url = "/services?name=name";
 564         String rsp = restClient().get(url).block();
 565         List<ServiceStatus> info = parseList(rsp, ServiceStatus.class);
 566         assertThat(info.size()).isEqualTo(1);
 567         ServiceStatus status = info.iterator().next();
 568         assertThat(status.keepAliveIntervalSeconds).isEqualTo(0);
 569         assertThat(status.serviceName).isEqualTo("name");
 570
 571         // GET (all)
 572         url = "/services";
 573         rsp = restClient().get(url).block();
 574         assertThat(rsp.contains("name")).isTrue();
 575         logger.info(rsp);
 576
 577         // Keep alive
 578         url = "/services/keepalive?name=name";
 579         ResponseEntity<String> entity = restClient().putForEntity(url).block();
 580         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
 581
 582         // DELETE service
 583         assertThat(services.size()).isEqualTo(1);
 584         url = "/services?name=name";
 585         restClient().delete(url).block();
 586         assertThat(services.size()).isEqualTo(0);
 587
 588         // Keep alive, no registerred service
 589         testErrorCode(restClient().put("/services/keepalive?name=name", ""), HttpStatus.NOT_FOUND);
 590
 591         // PUT servive with bad payload
 592         testErrorCode(restClient().put("/service", "crap"), HttpStatus.BAD_REQUEST);
 593         testErrorCode(restClient().put("/service", "{}"), HttpStatus.BAD_REQUEST);
 594         testErrorCode(restClient().put("/service", createServiceJson("name", -123)), HttpStatus.BAD_REQUEST);
 595         testErrorCode(restClient().put("/service", createServiceJson("name", 0, "missing.portandprotocol.com")),
 596             HttpStatus.BAD_REQUEST);
 597
 598         // GET non existing servive
 599         testErrorCode(restClient().get("/services?name=XXX"), HttpStatus.NOT_FOUND);
 600     }
 601
 602     @Test
 603     public void testServiceSupervision() throws Exception {
 604         putService("service1", 1, HttpStatus.CREATED);
 605         addPolicyType("type1", "ric1");
 606
 607         String url = putPolicyUrl("service1", "ric1", "type1", "instance1");
 608         final String policyBody = jsonString();
 609         restClient().put(url, policyBody).block();
 610
 611         assertThat(policies.size()).isEqualTo(1);
 612         assertThat(services.size()).isEqualTo(1);
 613
 614         // Timeout after ~1 second
 615         await().untilAsserted(() -> assertThat(policies.size()).isEqualTo(0));
 616         assertThat(services.size()).isEqualTo(0);
 617     }
 618
 619     @Test
 620     public void testGetPolicyStatus() throws Exception {
 621         addPolicy("id", "typeName", "service1", "ric1");
 622         assertThat(policies.size()).isEqualTo(1);
 623
 624         String url = "/policy_status?id=id";
 625         String rsp = restClient().get(url).block();
 626         assertThat(rsp.equals("OK")).isTrue();
 627
 628         // GET non existing policy status
 629         url = "/policy_status?id=XXX";
 630         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 631     }
 632
 633     private Policy addPolicy(String id, String typeName, String service, String ric) throws ServiceException {
 634         addRic(ric);
 635         Policy p = ImmutablePolicy.builder().id(id) //
 636             .json(jsonString()) //
 637             .ownerServiceName(service) //
 638             .ric(rics.getRic(ric)) //
 639             .type(addPolicyType(typeName, ric)) //
 640             .lastModified("lastModified").build();
 641         policies.put(p);
 642         return p;
 643     }
 644
 645     private Policy addPolicy(String id, String typeName, String service) throws ServiceException {
 646         return addPolicy(id, typeName, service, "ric");
 647     }
 648
 649     private String createServiceJson(String name, long keepAliveIntervalSeconds) {
 650         return createServiceJson(name, keepAliveIntervalSeconds, "https://examples.javacodegeeks.com/core-java/");
 651     }
 652
 653     private String createServiceJson(String name, long keepAliveIntervalSeconds, String url) {
 654         ServiceRegistrationInfo service = new ServiceRegistrationInfo(name, keepAliveIntervalSeconds, url);
 655
 656         String json = gson.toJson(service);
 657         return json;
 658     }
 659
 660     private void putService(String name) {
 661         putService(name, 0, null);
 662     }
 663
 664     private void putService(String name, long keepAliveIntervalSeconds, @Nullable HttpStatus expectedStatus) {
 665         String url = "/service";
 666         String body = createServiceJson(name, keepAliveIntervalSeconds);
 667         ResponseEntity<String> resp = restClient().putForEntity(url, body).block();
 668         if (expectedStatus != null) {
 669             assertEquals(expectedStatus, resp.getStatusCode(), "");
 670         }
 671     }
 672
 673     private String baseUrl() {
 674         return "https://localhost:" + port;
 675     }
 676
 677     private String jsonString() {
 678         return "{\"servingCellNrcgi\":\"1\"}";
 679     }
 680
 681     @Test
 682     public void testConcurrency() throws Exception {
 683         final Instant startTime = Instant.now();
 684         List<Thread> threads = new ArrayList<>();
 685         a1ClientFactory.setResponseDelay(Duration.ofMillis(1));
 686         addRic("ric");
 687         addPolicyType("type1", "ric");
 688         addPolicyType("type2", "ric");
 689
 690         for (int i = 0; i < 100; ++i) {
 691             Thread t =
 692                 new Thread(new ConcurrencyTestRunnable(baseUrl(), supervision, a1ClientFactory, rics, policyTypes),
 693                     "TestThread_" + i);
 694             t.start();
 695             threads.add(t);
 696         }
 697         for (Thread t : threads) {
 698             t.join();
 699         }
 700         assertThat(policies.size()).isEqualTo(0);
 701         logger.info("Concurrency test took " + Duration.between(startTime, Instant.now()));
 702     }
 703
 704     private AsyncRestClient restClient() {
 705         return new AsyncRestClient(baseUrl());
 706     }
 707
 708     private void testErrorCode(Mono<?> request, HttpStatus expStatus) {
 709         testErrorCode(request, expStatus, "");
 710     }
 711
 712     private void testErrorCode(Mono<?> request, HttpStatus expStatus, String responseContains) {
 713         StepVerifier.create(request) //
 714             .expectSubscription() //
 715             .expectErrorMatches(t -> checkWebClientError(t, expStatus, responseContains)) //
 716             .verify();
 717     }
 718
 719     private boolean checkWebClientError(Throwable t, HttpStatus expStatus, String responseContains) {
 720         assertTrue(t instanceof WebClientResponseException);
 721         WebClientResponseException e = (WebClientResponseException) t;
 722         assertThat(e.getStatusCode()).isEqualTo(expStatus);
 723         assertThat(e.getResponseBodyAsString()).contains(responseContains);
 724         return true;
 725     }
 726
 727     private MockA1Client getA1Client(String ricName) throws ServiceException {
 728         return a1ClientFactory.getOrCreateA1Client(ricName);
 729     }
 730
 731     private PolicyType createPolicyType(String policyTypeName) {
 732         return ImmutablePolicyType.builder() //
 733             .name(policyTypeName) //
 734             .schema("{\"title\":\"" + policyTypeName + "\"}") //
 735             .build();
 736     }
 737
 738     private PolicyType addPolicyType(String policyTypeName, String ricName) {
 739         PolicyType type = createPolicyType(policyTypeName);
 740         policyTypes.put(type);
 741         addRic(ricName).addSupportedPolicyType(type);
 742         return type;
 743     }
 744
 745     private Ric addRic(String ricName) {
 746         return addRic(ricName, null);
 747     }
 748
 749     private Ric addRic(String ricName, String managedElement) {
 750         if (rics.get(ricName) != null) {
 751             return rics.get(ricName);
 752         }
 753         List<String> mes = new ArrayList<>();
 754         if (managedElement != null) {
 755             mes.add(managedElement);
 756         }
 757         RicConfig conf = ImmutableRicConfig.builder() //
 758             .name(ricName) //
 759             .baseUrl(ricName) //
 760             .managedElementIds(mes) //
 761             .controllerName("") //
 762             .build();
 763         Ric ric = new Ric(conf);
 764         ric.setState(Ric.RicState.AVAILABLE);
 765         this.rics.put(ric);
 766         return ric;
 767     }
 768
 769     private static <T> List<T> parseList(String jsonString, Class<T> clazz) {
 770         List<T> result = new ArrayList<>();
 771         JsonArray jsonArr = JsonParser.parseString(jsonString).getAsJsonArray();
 772         for (JsonElement jsonElement : jsonArr) {
 773             T o = gson.fromJson(jsonElement.toString(), clazz);
 774             result.add(o);
 775         }
 776         return result;
 777     }
 778
 779     private static List<String> parseSchemas(String jsonString) {
 780         JsonArray arrayOfSchema = JsonParser.parseString(jsonString).getAsJsonArray();
 781         List<String> result = new ArrayList<>();
 782         for (JsonElement schemaObject : arrayOfSchema) {
 783             result.add(schemaObject.toString());
 784         }
 785         return result;
 786     }
 787 }