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         boolean isTransient) {
 279         String url;
 280         if (policyTypeName.isEmpty()) {
 281             url = "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName;
 282         } else {
 283             url = "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName + "&type="
 284                 + policyTypeName;
 285         }
 286         if (isTransient) {
 287             url += "&transient=true";
 288         }
 289         return url;
 290     }
 291
 292     private String putPolicyUrl(String serviceName, String ricName, String policyTypeName, String policyInstanceId) {
 293         return putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId, false);
 294     }
 295
 296     @Test
 297     public void testPutPolicy() throws Exception {
 298         String serviceName = "service1";
 299         String ricName = "ric1";
 300         String policyTypeName = "type1";
 301         String policyInstanceId = "instance1";
 302
 303         putService(serviceName);
 304         addPolicyType(policyTypeName, ricName);
 305
 306         // PUT a transient policy
 307         String url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId, true);
 308         final String policyBody = jsonString();
 309         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 310
 311         restClient().put(url, policyBody).block();
 312
 313         Policy policy = policies.getPolicy(policyInstanceId);
 314         assertThat(policy).isNotNull();
 315         assertThat(policy.id()).isEqualTo(policyInstanceId);
 316         assertThat(policy.ownerServiceName()).isEqualTo(serviceName);
 317         assertThat(policy.ric().name()).isEqualTo("ric1");
 318         assertThat(policy.isTransient()).isEqualTo(true);
 319
 320         // Put a non transient policy
 321         url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 322         restClient().put(url, policyBody).block();
 323         policy = policies.getPolicy(policyInstanceId);
 324         assertThat(policy.isTransient()).isEqualTo(false);
 325
 326         url = "/policies";
 327         String rsp = restClient().get(url).block();
 328         assertThat(rsp.contains(policyInstanceId)).isTrue();
 329
 330         url = "/policy?id=" + policyInstanceId;
 331         rsp = restClient().get(url).block();
 332         assertThat(rsp).isEqualTo(policyBody);
 333
 334         // Test of error codes
 335         url = putPolicyUrl(serviceName, ricName + "XX", policyTypeName, policyInstanceId);
 336         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 337
 338         url = putPolicyUrl(serviceName, ricName, policyTypeName + "XX", policyInstanceId);
 339         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 340
 341         url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 342         this.rics.getRic(ricName).setState(Ric.RicState.SYNCHRONIZING);
 343         testErrorCode(restClient().put(url, policyBody), HttpStatus.LOCKED);
 344         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 345     }
 346
 347     @Test
 348     /**
 349      * Test that HttpStatus and body from failing REST call to A1 is passed on to
 350      * the caller.
 351      *
 352      * @throws ServiceException
 353      */
 354     public void testErrorFromRIC() throws ServiceException {
 355         putService("service1");
 356         addPolicyType("type1", "ric1");
 357
 358         String url = putPolicyUrl("service1", "ric1", "type1", "id1");
 359         MockA1Client a1Client = a1ClientFactory.getOrCreateA1Client("ric1");
 360         HttpStatus httpStatus = HttpStatus.INTERNAL_SERVER_ERROR;
 361         String responseBody = "Refused";
 362         byte[] responseBodyBytes = responseBody.getBytes(StandardCharsets.UTF_8);
 363
 364         WebClientResponseException a1Exception = new WebClientResponseException(httpStatus.value(), "statusText", null,
 365             responseBodyBytes, StandardCharsets.UTF_8, null);
 366         doReturn(Mono.error(a1Exception)).when(a1Client).putPolicy(any());
 367
 368         // PUT Policy
 369         testErrorCode(restClient().put(url, "{}"), httpStatus, responseBody);
 370
 371         // DELETE POLICY
 372         this.addPolicy("instance1", "type1", "service1", "ric1");
 373         doReturn(Mono.error(a1Exception)).when(a1Client).deletePolicy(any());
 374         testErrorCode(restClient().delete("/policy?id=instance1"), httpStatus, responseBody);
 375
 376         // GET STATUS
 377         this.addPolicy("instance1", "type1", "service1", "ric1");
 378         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 379         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus, responseBody);
 380
 381         // Check that empty response body is OK
 382         a1Exception = new WebClientResponseException(httpStatus.value(), "", null, null, null, null);
 383         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 384         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus);
 385     }
 386
 387     @Test
 388     public void testPutTypelessPolicy() throws Exception {
 389         putService("service1");
 390         addPolicyType("", "ric1");
 391         String url = putPolicyUrl("service1", "ric1", "", "id1");
 392         restClient().put(url, jsonString()).block();
 393
 394         String rsp = restClient().get("/policies").block();
 395         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 396         assertThat(info).size().isEqualTo(1);
 397         PolicyInfo policyInfo = info.get(0);
 398         assertThat(policyInfo.id.equals("id1")).isTrue();
 399         assertThat(policyInfo.type.equals("")).isTrue();
 400     }
 401
 402     @Test
 403     public void testRefuseToUpdatePolicy() throws Exception {
 404         // Test that only the json can be changed for a already created policy
 405         // In this case service is attempted to be changed
 406         this.addRic("ric1");
 407         this.addRic("ricXXX");
 408         this.addPolicy("instance1", "type1", "service1", "ric1");
 409         this.addPolicy("instance2", "type1", "service1", "ricXXX");
 410
 411         // Try change ric1 -> ricXXX
 412         String urlWrongRic = putPolicyUrl("service1", "ricXXX", "type1", "instance1");
 413         testErrorCode(restClient().put(urlWrongRic, jsonString()), HttpStatus.CONFLICT);
 414     }
 415
 416     @Test
 417     public void testGetPolicy() throws Exception {
 418         String url = "/policy?id=id";
 419         Policy policy = addPolicy("id", "typeName", "service1", "ric1");
 420         {
 421             String rsp = restClient().get(url).block();
 422             assertThat(rsp).isEqualTo(policy.json());
 423         }
 424         {
 425             policies.remove(policy);
 426             testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 427         }
 428     }
 429
 430     @Test
 431     public void testDeletePolicy() throws Exception {
 432         addPolicy("id", "typeName", "service1", "ric1");
 433         assertThat(policies.size()).isEqualTo(1);
 434
 435         String url = "/policy?id=id";
 436         ResponseEntity<String> entity = restClient().deleteForEntity(url).block();
 437
 438         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.NO_CONTENT);
 439         assertThat(policies.size()).isEqualTo(0);
 440
 441         // Delete a non existing policy
 442         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 443     }
 444
 445     @Test
 446     public void testGetPolicySchemas() throws Exception {
 447         addPolicyType("type1", "ric1");
 448         addPolicyType("type2", "ric2");
 449
 450         String url = "/policy_schemas";
 451         String rsp = this.restClient().get(url).block();
 452         assertThat(rsp).contains("type1");
 453         assertThat(rsp).contains("[{\"title\":\"type2\"}");
 454
 455         List<String> info = parseSchemas(rsp);
 456         assertThat(info.size()).isEqualTo(2);
 457
 458         url = "/policy_schemas?ric=ric1";
 459         rsp = restClient().get(url).block();
 460         assertThat(rsp).contains("type1");
 461         info = parseSchemas(rsp);
 462         assertThat(info.size()).isEqualTo(1);
 463
 464         // Get schema for non existing RIC
 465         url = "/policy_schemas?ric=ric1XXX";
 466         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 467     }
 468
 469     @Test
 470     public void testGetPolicySchema() throws Exception {
 471         addPolicyType("type1", "ric1");
 472         addPolicyType("type2", "ric2");
 473
 474         String url = "/policy_schema?id=type1";
 475         String rsp = restClient().get(url).block();
 476         logger.info(rsp);
 477         assertThat(rsp).contains("type1");
 478         assertThat(rsp).contains("title");
 479
 480         // Get non existing schema
 481         url = "/policy_schema?id=type1XX";
 482         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 483     }
 484
 485     @Test
 486     public void testGetPolicyTypes() throws Exception {
 487         addPolicyType("type1", "ric1");
 488         addPolicyType("type2", "ric2");
 489
 490         String url = "/policy_types";
 491         String rsp = restClient().get(url).block();
 492         assertThat(rsp).isEqualTo("[\"type2\",\"type1\"]");
 493
 494         url = "/policy_types?ric=ric1";
 495         rsp = restClient().get(url).block();
 496         assertThat(rsp).isEqualTo("[\"type1\"]");
 497
 498         // Get policy types for non existing RIC
 499         url = "/policy_types?ric=ric1XXX";
 500         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 501     }
 502
 503     @Test
 504     public void testGetPolicies() throws Exception {
 505         addPolicy("id1", "type1", "service1");
 506
 507         String url = "/policies";
 508         String rsp = restClient().get(url).block();
 509         logger.info(rsp);
 510         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 511         assertThat(info).size().isEqualTo(1);
 512         PolicyInfo policyInfo = info.get(0);
 513         assert (policyInfo.validate());
 514         assertThat(policyInfo.id).isEqualTo("id1");
 515         assertThat(policyInfo.type).isEqualTo("type1");
 516         assertThat(policyInfo.service).isEqualTo("service1");
 517     }
 518
 519     @Test
 520     public void testGetPoliciesFilter() throws Exception {
 521         addPolicy("id1", "type1", "service1");
 522         addPolicy("id2", "type1", "service2");
 523         addPolicy("id3", "type2", "service1");
 524
 525         String url = "/policies?type=type1";
 526         String rsp = restClient().get(url).block();
 527         logger.info(rsp);
 528         assertThat(rsp).contains("id1");
 529         assertThat(rsp).contains("id2");
 530         assertThat(rsp.contains("id3")).isFalse();
 531
 532         url = "/policies?type=type1&service=service2";
 533         rsp = restClient().get(url).block();
 534         logger.info(rsp);
 535         assertThat(rsp.contains("id1")).isFalse();
 536         assertThat(rsp).contains("id2");
 537         assertThat(rsp.contains("id3")).isFalse();
 538
 539         // Test get policies for non existing type
 540         url = "/policies?type=type1XXX";
 541         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 542
 543         // Test get policies for non existing RIC
 544         url = "/policies?ric=XXX";
 545         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 546     }
 547
 548     @Test
 549     public void testGetPolicyIdsFilter() throws Exception {
 550         addPolicy("id1", "type1", "service1", "ric1");
 551         addPolicy("id2", "type1", "service2", "ric1");
 552         addPolicy("id3", "type2", "service1", "ric1");
 553
 554         String url = "/policy_ids?type=type1";
 555         String rsp = restClient().get(url).block();
 556         logger.info(rsp);
 557         assertThat(rsp).contains("id1");
 558         assertThat(rsp).contains("id2");
 559         assertThat(rsp.contains("id3")).isFalse();
 560
 561         url = "/policy_ids?type=type1&service=service1&ric=ric1";
 562         rsp = restClient().get(url).block();
 563         assertThat(rsp).isEqualTo("[\"id1\"]");
 564
 565         // Test get policy ids for non existing type
 566         url = "/policy_ids?type=type1XXX";
 567         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 568
 569         // Test get policy ids for non existing RIC
 570         url = "/policy_ids?ric=XXX";
 571         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 572     }
 573
 574     @Test
 575     public void testPutAndGetService() throws Exception {
 576         // PUT
 577         putService("name", 0, HttpStatus.CREATED);
 578         putService("name", 0, HttpStatus.OK);
 579
 580         // GET one service
 581         String url = "/services?name=name";
 582         String rsp = restClient().get(url).block();
 583         List<ServiceStatus> info = parseList(rsp, ServiceStatus.class);
 584         assertThat(info.size()).isEqualTo(1);
 585         ServiceStatus status = info.iterator().next();
 586         assertThat(status.keepAliveIntervalSeconds).isEqualTo(0);
 587         assertThat(status.serviceName).isEqualTo("name");
 588
 589         // GET (all)
 590         url = "/services";
 591         rsp = restClient().get(url).block();
 592         assertThat(rsp.contains("name")).isTrue();
 593         logger.info(rsp);
 594
 595         // Keep alive
 596         url = "/services/keepalive?name=name";
 597         ResponseEntity<String> entity = restClient().putForEntity(url).block();
 598         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
 599
 600         // DELETE service
 601         assertThat(services.size()).isEqualTo(1);
 602         url = "/services?name=name";
 603         restClient().delete(url).block();
 604         assertThat(services.size()).isEqualTo(0);
 605
 606         // Keep alive, no registerred service
 607         testErrorCode(restClient().put("/services/keepalive?name=name", ""), HttpStatus.NOT_FOUND);
 608
 609         // PUT servive with bad payload
 610         testErrorCode(restClient().put("/service", "crap"), HttpStatus.BAD_REQUEST);
 611         testErrorCode(restClient().put("/service", "{}"), HttpStatus.BAD_REQUEST);
 612         testErrorCode(restClient().put("/service", createServiceJson("name", -123)), HttpStatus.BAD_REQUEST);
 613         testErrorCode(restClient().put("/service", createServiceJson("name", 0, "missing.portandprotocol.com")),
 614             HttpStatus.BAD_REQUEST);
 615
 616         // GET non existing servive
 617         testErrorCode(restClient().get("/services?name=XXX"), HttpStatus.NOT_FOUND);
 618     }
 619
 620     @Test
 621     public void testServiceSupervision() throws Exception {
 622         putService("service1", 1, HttpStatus.CREATED);
 623         addPolicyType("type1", "ric1");
 624
 625         String url = putPolicyUrl("service1", "ric1", "type1", "instance1");
 626         final String policyBody = jsonString();
 627         restClient().put(url, policyBody).block();
 628
 629         assertThat(policies.size()).isEqualTo(1);
 630         assertThat(services.size()).isEqualTo(1);
 631
 632         // Timeout after ~1 second
 633         await().untilAsserted(() -> assertThat(policies.size()).isEqualTo(0));
 634         assertThat(services.size()).isEqualTo(0);
 635     }
 636
 637     @Test
 638     public void testGetPolicyStatus() throws Exception {
 639         addPolicy("id", "typeName", "service1", "ric1");
 640         assertThat(policies.size()).isEqualTo(1);
 641
 642         String url = "/policy_status?id=id";
 643         String rsp = restClient().get(url).block();
 644         assertThat(rsp.equals("OK")).isTrue();
 645
 646         // GET non existing policy status
 647         url = "/policy_status?id=XXX";
 648         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 649     }
 650
 651     private Policy addPolicy(String id, String typeName, String service, String ric) throws ServiceException {
 652         addRic(ric);
 653         Policy p = ImmutablePolicy.builder() //
 654             .id(id) //
 655             .json(jsonString()) //
 656             .ownerServiceName(service) //
 657             .ric(rics.getRic(ric)) //
 658             .type(addPolicyType(typeName, ric)) //
 659             .lastModified("lastModified") //
 660             .isTransient(false) //
 661             .build();
 662         policies.put(p);
 663         return p;
 664     }
 665
 666     private Policy addPolicy(String id, String typeName, String service) throws ServiceException {
 667         return addPolicy(id, typeName, service, "ric");
 668     }
 669
 670     private String createServiceJson(String name, long keepAliveIntervalSeconds) {
 671         return createServiceJson(name, keepAliveIntervalSeconds, "https://examples.javacodegeeks.com/core-java/");
 672     }
 673
 674     private String createServiceJson(String name, long keepAliveIntervalSeconds, String url) {
 675         ServiceRegistrationInfo service = new ServiceRegistrationInfo(name, keepAliveIntervalSeconds, url);
 676
 677         String json = gson.toJson(service);
 678         return json;
 679     }
 680
 681     private void putService(String name) {
 682         putService(name, 0, null);
 683     }
 684
 685     private void putService(String name, long keepAliveIntervalSeconds, @Nullable HttpStatus expectedStatus) {
 686         String url = "/service";
 687         String body = createServiceJson(name, keepAliveIntervalSeconds);
 688         ResponseEntity<String> resp = restClient().putForEntity(url, body).block();
 689         if (expectedStatus != null) {
 690             assertEquals(expectedStatus, resp.getStatusCode(), "");
 691         }
 692     }
 693
 694     private String baseUrl() {
 695         return "https://localhost:" + port;
 696     }
 697
 698     private String jsonString() {
 699         return "{\"servingCellNrcgi\":\"1\"}";
 700     }
 701
 702     @Test
 703     public void testConcurrency() throws Exception {
 704         final Instant startTime = Instant.now();
 705         List<Thread> threads = new ArrayList<>();
 706         a1ClientFactory.setResponseDelay(Duration.ofMillis(1));
 707         addRic("ric");
 708         addPolicyType("type1", "ric");
 709         addPolicyType("type2", "ric");
 710
 711         for (int i = 0; i < 10; ++i) {
 712             Thread t =
 713                 new Thread(new ConcurrencyTestRunnable(baseUrl(), supervision, a1ClientFactory, rics, policyTypes),
 714                     "TestThread_" + i);
 715             t.start();
 716             threads.add(t);
 717         }
 718         for (Thread t : threads) {
 719             t.join();
 720         }
 721         assertThat(policies.size()).isEqualTo(0);
 722         logger.info("Concurrency test took " + Duration.between(startTime, Instant.now()));
 723     }
 724
 725     private AsyncRestClient restClient() {
 726         return new AsyncRestClient(baseUrl());
 727     }
 728
 729     private void testErrorCode(Mono<?> request, HttpStatus expStatus) {
 730         testErrorCode(request, expStatus, "");
 731     }
 732
 733     private void testErrorCode(Mono<?> request, HttpStatus expStatus, String responseContains) {
 734         StepVerifier.create(request) //
 735             .expectSubscription() //
 736             .expectErrorMatches(t -> checkWebClientError(t, expStatus, responseContains)) //
 737             .verify();
 738     }
 739
 740     private boolean checkWebClientError(Throwable t, HttpStatus expStatus, String responseContains) {
 741         assertTrue(t instanceof WebClientResponseException);
 742         WebClientResponseException e = (WebClientResponseException) t;
 743         assertThat(e.getStatusCode()).isEqualTo(expStatus);
 744         assertThat(e.getResponseBodyAsString()).contains(responseContains);
 745         return true;
 746     }
 747
 748     private MockA1Client getA1Client(String ricName) throws ServiceException {
 749         return a1ClientFactory.getOrCreateA1Client(ricName);
 750     }
 751
 752     private PolicyType createPolicyType(String policyTypeName) {
 753         return ImmutablePolicyType.builder() //
 754             .name(policyTypeName) //
 755             .schema("{\"title\":\"" + policyTypeName + "\"}") //
 756             .build();
 757     }
 758
 759     private PolicyType addPolicyType(String policyTypeName, String ricName) {
 760         PolicyType type = createPolicyType(policyTypeName);
 761         policyTypes.put(type);
 762         addRic(ricName).addSupportedPolicyType(type);
 763         return type;
 764     }
 765
 766     private Ric addRic(String ricName) {
 767         return addRic(ricName, null);
 768     }
 769
 770     private Ric addRic(String ricName, String managedElement) {
 771         if (rics.get(ricName) != null) {
 772             return rics.get(ricName);
 773         }
 774         List<String> mes = new ArrayList<>();
 775         if (managedElement != null) {
 776             mes.add(managedElement);
 777         }
 778         RicConfig conf = ImmutableRicConfig.builder() //
 779             .name(ricName) //
 780             .baseUrl(ricName) //
 781             .managedElementIds(mes) //
 782             .controllerName("") //
 783             .build();
 784         Ric ric = new Ric(conf);
 785         ric.setState(Ric.RicState.AVAILABLE);
 786         this.rics.put(ric);
 787         return ric;
 788     }
 789
 790     private static <T> List<T> parseList(String jsonString, Class<T> clazz) {
 791         List<T> result = new ArrayList<>();
 792         JsonArray jsonArr = JsonParser.parseString(jsonString).getAsJsonArray();
 793         for (JsonElement jsonElement : jsonArr) {
 794             T o = gson.fromJson(jsonElement.toString(), clazz);
 795             result.add(o);
 796         }
 797         return result;
 798     }
 799
 800     private static List<String> parseSchemas(String jsonString) {
 801         JsonArray arrayOfSchema = JsonParser.parseString(jsonString).getAsJsonArray();
 802         List<String> result = new ArrayList<>();
 803         for (JsonElement schemaObject : arrayOfSchema) {
 804             result.add(schemaObject.toString());
 805         }
 806         return result;
 807     }
 808 }