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     ApplicationConfig applicationConfig;
 114
 115     @Autowired
 116     Services services;
 117
 118     private static Gson gson = new GsonBuilder() //
 119         .serializeNulls() //
 120         .create(); //
 121
 122     public static class MockApplicationConfig extends ApplicationConfig {
 123         @Override
 124         public String getLocalConfigurationFilePath() {
 125             return ""; // No config file loaded for the test
 126         }
 127     }
 128
 129     /**
 130      * Overrides the BeanFactory.
 131      */
 132     @TestConfiguration
 133     static class TestBeanFactory {
 134         private final PolicyTypes policyTypes = new PolicyTypes();
 135         private final Services services = new Services();
 136         private final Policies policies = new Policies();
 137         MockA1ClientFactory a1ClientFactory = null;
 138
 139         @Bean
 140         public ApplicationConfig getApplicationConfig() {
 141             return new MockApplicationConfig();
 142         }
 143
 144         @Bean
 145         MockA1ClientFactory getA1ClientFactory() {
 146             if (a1ClientFactory == null) {
 147                 this.a1ClientFactory = new MockA1ClientFactory(this.policyTypes);
 148             }
 149             return this.a1ClientFactory;
 150         }
 151
 152         @Bean
 153         public PolicyTypes getPolicyTypes() {
 154             return this.policyTypes;
 155         }
 156
 157         @Bean
 158         Policies getPolicies() {
 159             return this.policies;
 160         }
 161
 162         @Bean
 163         Services getServices() {
 164             return this.services;
 165         }
 166
 167         @Bean
 168         public ServiceSupervision getServiceSupervision() {
 169             Duration checkInterval = Duration.ofMillis(1);
 170             return new ServiceSupervision(this.services, this.policies, this.getA1ClientFactory(), checkInterval);
 171         }
 172
 173         @Bean
 174         public ServletWebServerFactory servletContainer() {
 175             return new TomcatServletWebServerFactory();
 176         }
 177
 178     }
 179
 180     @LocalServerPort
 181     private int port;
 182
 183     @BeforeEach
 184     public void reset() {
 185         rics.clear();
 186         policies.clear();
 187         policyTypes.clear();
 188         services.clear();
 189         a1ClientFactory.reset();
 190     }
 191
 192     @AfterEach
 193     public void verifyNoRicLocks() {
 194         for (Ric ric : this.rics.getRics()) {
 195             ric.getLock().lockBlocking(LockType.EXCLUSIVE);
 196             ric.getLock().unlockBlocking();
 197             assertThat(ric.getLock().getLockCounter()).isEqualTo(0);
 198             assertThat(ric.getState()).isEqualTo(Ric.RicState.AVAILABLE);
 199         }
 200     }
 201
 202     @Test
 203     public void testGetRics() throws Exception {
 204         addRic("ric1");
 205         this.addPolicyType("type1", "ric1");
 206         String url = "/rics?policyType=type1";
 207         String rsp = restClient().get(url).block();
 208         assertThat(rsp).contains("ric1");
 209
 210         // nameless type for ORAN A1 1.1
 211         addRic("ric2");
 212         this.addPolicyType("", "ric2");
 213         url = "/rics?policyType=";
 214         rsp = restClient().get(url).block();
 215         assertThat(rsp).contains("ric2");
 216         assertThat(rsp).doesNotContain("ric1");
 217         assertThat(rsp).contains("AVAILABLE");
 218
 219         // All RICs
 220         rsp = restClient().get("/rics").block();
 221         assertThat(rsp).contains("ric2");
 222         assertThat(rsp).contains("ric1");
 223
 224         // Non existing policy type
 225         url = "/rics?policyType=XXXX";
 226         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 227     }
 228
 229     @Test
 230     public void testSynchronization() throws Exception {
 231         // Two polictypes will be put in the NearRT RICs
 232         PolicyTypes nearRtRicPolicyTypes = new PolicyTypes();
 233         nearRtRicPolicyTypes.put(createPolicyType("typeName"));
 234         nearRtRicPolicyTypes.put(createPolicyType("typeName2"));
 235         this.a1ClientFactory.setPolicyTypes(nearRtRicPolicyTypes);
 236
 237         // One type and one instance added to the agent storage
 238         final String ric1Name = "ric1";
 239         Ric ric1 = addRic(ric1Name);
 240         Policy policy2 = addPolicy("policyId2", "typeName", "service", ric1Name);
 241         Ric ric2 = addRic("ric2");
 242
 243         getA1Client(ric1Name).putPolicy(policy2); // put it in the RIC
 244         policies.remove(policy2); // Remove it from the repo -> should be deleted in the RIC
 245
 246         String policyId = "policyId";
 247         Policy policy = addPolicy(policyId, "typeName", "service", ric1Name); // This should be created in the RIC
 248         supervision.checkAllRics(); // The created policy should be put in the RIC
 249
 250         // Wait until synch is completed
 251         await().untilAsserted(() -> RicState.SYNCHRONIZING.equals(rics.getRic(ric1Name).getState()));
 252         await().untilAsserted(() -> RicState.AVAILABLE.equals(rics.getRic(ric1Name).getState()));
 253         await().untilAsserted(() -> RicState.AVAILABLE.equals(rics.getRic("ric2").getState()));
 254
 255         Policies ricPolicies = getA1Client(ric1Name).getPolicies();
 256         assertThat(ricPolicies.size()).isEqualTo(1);
 257         Policy ricPolicy = ricPolicies.get(policyId);
 258         assertThat(ricPolicy.json()).isEqualTo(policy.json());
 259
 260         // Both types should be in the agent storage after the synch
 261         assertThat(ric1.getSupportedPolicyTypes().size()).isEqualTo(2);
 262         assertThat(ric2.getSupportedPolicyTypes().size()).isEqualTo(2);
 263     }
 264
 265     @Test
 266     public void testGetRicForManagedElement_thenReturnCorrectRic() throws Exception {
 267         String ricName = "ric1";
 268         String managedElementId = "kista_1";
 269         addRic(ricName, managedElementId);
 270
 271         String url = "/ric?managedElementId=" + managedElementId;
 272         String rsp = restClient().get(url).block();
 273         assertThat(rsp).isEqualTo(ricName);
 274
 275         // test GET RIC for ManagedElement that does not exist
 276         url = "/ric?managedElementId=" + "junk";
 277         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 278     }
 279
 280     private String putPolicyUrl(String serviceName, String ricName, String policyTypeName, String policyInstanceId,
 281         boolean isTransient) {
 282         String url;
 283         if (policyTypeName.isEmpty()) {
 284             url = "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName;
 285         } else {
 286             url = "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName + "&type="
 287                 + policyTypeName;
 288         }
 289         if (isTransient) {
 290             url += "&transient=true";
 291         }
 292         return url;
 293     }
 294
 295     private String putPolicyUrl(String serviceName, String ricName, String policyTypeName, String policyInstanceId) {
 296         return putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId, false);
 297     }
 298
 299     @Test
 300     public void testPutPolicy() throws Exception {
 301         String serviceName = "service1";
 302         String ricName = "ric1";
 303         String policyTypeName = "type1";
 304         String policyInstanceId = "instance1";
 305
 306         putService(serviceName);
 307         addPolicyType(policyTypeName, ricName);
 308
 309         // PUT a transient policy
 310         String url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId, true);
 311         final String policyBody = jsonString();
 312         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 313
 314         restClient().put(url, policyBody).block();
 315
 316         Policy policy = policies.getPolicy(policyInstanceId);
 317         assertThat(policy).isNotNull();
 318         assertThat(policy.id()).isEqualTo(policyInstanceId);
 319         assertThat(policy.ownerServiceName()).isEqualTo(serviceName);
 320         assertThat(policy.ric().name()).isEqualTo("ric1");
 321         assertThat(policy.isTransient()).isEqualTo(true);
 322
 323         // Put a non transient policy
 324         url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 325         restClient().put(url, policyBody).block();
 326         policy = policies.getPolicy(policyInstanceId);
 327         assertThat(policy.isTransient()).isEqualTo(false);
 328
 329         url = "/policies";
 330         String rsp = restClient().get(url).block();
 331         assertThat(rsp.contains(policyInstanceId)).isTrue();
 332
 333         url = "/policy?id=" + policyInstanceId;
 334         rsp = restClient().get(url).block();
 335         assertThat(rsp).isEqualTo(policyBody);
 336
 337         // Test of error codes
 338         url = putPolicyUrl(serviceName, ricName + "XX", policyTypeName, policyInstanceId);
 339         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 340
 341         url = putPolicyUrl(serviceName, ricName, policyTypeName + "XX", policyInstanceId);
 342         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 343
 344         url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 345         this.rics.getRic(ricName).setState(Ric.RicState.SYNCHRONIZING);
 346         testErrorCode(restClient().put(url, policyBody), HttpStatus.LOCKED);
 347         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 348     }
 349
 350     @Test
 351     /**
 352      * Test that HttpStatus and body from failing REST call to A1 is passed on to
 353      * the caller.
 354      *
 355      * @throws ServiceException
 356      */
 357     public void testErrorFromRIC() throws ServiceException {
 358         putService("service1");
 359         addPolicyType("type1", "ric1");
 360
 361         String url = putPolicyUrl("service1", "ric1", "type1", "id1");
 362         MockA1Client a1Client = a1ClientFactory.getOrCreateA1Client("ric1");
 363         HttpStatus httpStatus = HttpStatus.INTERNAL_SERVER_ERROR;
 364         String responseBody = "Refused";
 365         byte[] responseBodyBytes = responseBody.getBytes(StandardCharsets.UTF_8);
 366
 367         WebClientResponseException a1Exception = new WebClientResponseException(httpStatus.value(), "statusText", null,
 368             responseBodyBytes, StandardCharsets.UTF_8, null);
 369         doReturn(Mono.error(a1Exception)).when(a1Client).putPolicy(any());
 370
 371         // PUT Policy
 372         testErrorCode(restClient().put(url, "{}"), httpStatus, responseBody);
 373
 374         // DELETE POLICY
 375         this.addPolicy("instance1", "type1", "service1", "ric1");
 376         doReturn(Mono.error(a1Exception)).when(a1Client).deletePolicy(any());
 377         testErrorCode(restClient().delete("/policy?id=instance1"), httpStatus, responseBody);
 378
 379         // GET STATUS
 380         this.addPolicy("instance1", "type1", "service1", "ric1");
 381         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 382         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus, responseBody);
 383
 384         // Check that empty response body is OK
 385         a1Exception = new WebClientResponseException(httpStatus.value(), "", null, null, null, null);
 386         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 387         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus);
 388     }
 389
 390     @Test
 391     public void testPutTypelessPolicy() throws Exception {
 392         putService("service1");
 393         addPolicyType("", "ric1");
 394         String url = putPolicyUrl("service1", "ric1", "", "id1");
 395         restClient().put(url, jsonString()).block();
 396
 397         String rsp = restClient().get("/policies").block();
 398         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 399         assertThat(info).size().isEqualTo(1);
 400         PolicyInfo policyInfo = info.get(0);
 401         assertThat(policyInfo.id.equals("id1")).isTrue();
 402         assertThat(policyInfo.type.equals("")).isTrue();
 403     }
 404
 405     @Test
 406     public void testRefuseToUpdatePolicy() throws Exception {
 407         // Test that only the json can be changed for a already created policy
 408         // In this case service is attempted to be changed
 409         this.addRic("ric1");
 410         this.addRic("ricXXX");
 411         this.addPolicy("instance1", "type1", "service1", "ric1");
 412         this.addPolicy("instance2", "type1", "service1", "ricXXX");
 413
 414         // Try change ric1 -> ricXXX
 415         String urlWrongRic = putPolicyUrl("service1", "ricXXX", "type1", "instance1");
 416         testErrorCode(restClient().put(urlWrongRic, jsonString()), HttpStatus.CONFLICT);
 417     }
 418
 419     @Test
 420     public void testGetPolicy() throws Exception {
 421         String url = "/policy?id=id";
 422         Policy policy = addPolicy("id", "typeName", "service1", "ric1");
 423         {
 424             String rsp = restClient().get(url).block();
 425             assertThat(rsp).isEqualTo(policy.json());
 426         }
 427         {
 428             policies.remove(policy);
 429             testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 430         }
 431     }
 432
 433     @Test
 434     public void testDeletePolicy() throws Exception {
 435         addPolicy("id", "typeName", "service1", "ric1");
 436         assertThat(policies.size()).isEqualTo(1);
 437
 438         String url = "/policy?id=id";
 439         ResponseEntity<String> entity = restClient().deleteForEntity(url).block();
 440
 441         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.NO_CONTENT);
 442         assertThat(policies.size()).isEqualTo(0);
 443
 444         // Delete a non existing policy
 445         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 446     }
 447
 448     @Test
 449     public void testGetPolicySchemas() throws Exception {
 450         addPolicyType("type1", "ric1");
 451         addPolicyType("type2", "ric2");
 452
 453         String url = "/policy_schemas";
 454         String rsp = this.restClient().get(url).block();
 455         assertThat(rsp).contains("type1");
 456         assertThat(rsp).contains("[{\"title\":\"type2\"}");
 457
 458         List<String> info = parseSchemas(rsp);
 459         assertThat(info.size()).isEqualTo(2);
 460
 461         url = "/policy_schemas?ric=ric1";
 462         rsp = restClient().get(url).block();
 463         assertThat(rsp).contains("type1");
 464         info = parseSchemas(rsp);
 465         assertThat(info.size()).isEqualTo(1);
 466
 467         // Get schema for non existing RIC
 468         url = "/policy_schemas?ric=ric1XXX";
 469         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 470     }
 471
 472     @Test
 473     public void testGetPolicySchema() throws Exception {
 474         addPolicyType("type1", "ric1");
 475         addPolicyType("type2", "ric2");
 476
 477         String url = "/policy_schema?id=type1";
 478         String rsp = restClient().get(url).block();
 479         logger.info(rsp);
 480         assertThat(rsp).contains("type1");
 481         assertThat(rsp).contains("title");
 482
 483         // Get non existing schema
 484         url = "/policy_schema?id=type1XX";
 485         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 486     }
 487
 488     @Test
 489     public void testGetPolicyTypes() throws Exception {
 490         addPolicyType("type1", "ric1");
 491         addPolicyType("type2", "ric2");
 492
 493         String url = "/policy_types";
 494         String rsp = restClient().get(url).block();
 495         assertThat(rsp).isEqualTo("[\"type2\",\"type1\"]");
 496
 497         url = "/policy_types?ric=ric1";
 498         rsp = restClient().get(url).block();
 499         assertThat(rsp).isEqualTo("[\"type1\"]");
 500
 501         // Get policy types for non existing RIC
 502         url = "/policy_types?ric=ric1XXX";
 503         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 504     }
 505
 506     @Test
 507     public void testGetPolicies() throws Exception {
 508         addPolicy("id1", "type1", "service1");
 509
 510         String url = "/policies";
 511         String rsp = restClient().get(url).block();
 512         logger.info(rsp);
 513         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 514         assertThat(info).size().isEqualTo(1);
 515         PolicyInfo policyInfo = info.get(0);
 516         assert (policyInfo.validate());
 517         assertThat(policyInfo.id).isEqualTo("id1");
 518         assertThat(policyInfo.type).isEqualTo("type1");
 519         assertThat(policyInfo.service).isEqualTo("service1");
 520     }
 521
 522     @Test
 523     public void testGetPoliciesFilter() throws Exception {
 524         addPolicy("id1", "type1", "service1");
 525         addPolicy("id2", "type1", "service2");
 526         addPolicy("id3", "type2", "service1");
 527
 528         String url = "/policies?type=type1";
 529         String rsp = restClient().get(url).block();
 530         logger.info(rsp);
 531         assertThat(rsp).contains("id1");
 532         assertThat(rsp).contains("id2");
 533         assertThat(rsp.contains("id3")).isFalse();
 534
 535         url = "/policies?type=type1&service=service2";
 536         rsp = restClient().get(url).block();
 537         logger.info(rsp);
 538         assertThat(rsp.contains("id1")).isFalse();
 539         assertThat(rsp).contains("id2");
 540         assertThat(rsp.contains("id3")).isFalse();
 541
 542         // Test get policies for non existing type
 543         url = "/policies?type=type1XXX";
 544         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 545
 546         // Test get policies for non existing RIC
 547         url = "/policies?ric=XXX";
 548         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 549     }
 550
 551     @Test
 552     public void testGetPolicyIdsFilter() throws Exception {
 553         addPolicy("id1", "type1", "service1", "ric1");
 554         addPolicy("id2", "type1", "service2", "ric1");
 555         addPolicy("id3", "type2", "service1", "ric1");
 556
 557         String url = "/policy_ids?type=type1";
 558         String rsp = restClient().get(url).block();
 559         logger.info(rsp);
 560         assertThat(rsp).contains("id1");
 561         assertThat(rsp).contains("id2");
 562         assertThat(rsp.contains("id3")).isFalse();
 563
 564         url = "/policy_ids?type=type1&service=service1&ric=ric1";
 565         rsp = restClient().get(url).block();
 566         assertThat(rsp).isEqualTo("[\"id1\"]");
 567
 568         // Test get policy ids for non existing type
 569         url = "/policy_ids?type=type1XXX";
 570         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 571
 572         // Test get policy ids for non existing RIC
 573         url = "/policy_ids?ric=XXX";
 574         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 575     }
 576
 577     @Test
 578     public void testPutAndGetService() throws Exception {
 579         // PUT
 580         putService("name", 0, HttpStatus.CREATED);
 581         putService("name", 0, HttpStatus.OK);
 582
 583         // GET one service
 584         String url = "/services?name=name";
 585         String rsp = restClient().get(url).block();
 586         List<ServiceStatus> info = parseList(rsp, ServiceStatus.class);
 587         assertThat(info.size()).isEqualTo(1);
 588         ServiceStatus status = info.iterator().next();
 589         assertThat(status.keepAliveIntervalSeconds).isEqualTo(0);
 590         assertThat(status.serviceName).isEqualTo("name");
 591
 592         // GET (all)
 593         url = "/services";
 594         rsp = restClient().get(url).block();
 595         assertThat(rsp.contains("name")).isTrue();
 596         logger.info(rsp);
 597
 598         // Keep alive
 599         url = "/services/keepalive?name=name";
 600         ResponseEntity<String> entity = restClient().putForEntity(url).block();
 601         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
 602
 603         // DELETE service
 604         assertThat(services.size()).isEqualTo(1);
 605         url = "/services?name=name";
 606         restClient().delete(url).block();
 607         assertThat(services.size()).isEqualTo(0);
 608
 609         // Keep alive, no registerred service
 610         testErrorCode(restClient().put("/services/keepalive?name=name", ""), HttpStatus.NOT_FOUND);
 611
 612         // PUT servive with bad payload
 613         testErrorCode(restClient().put("/service", "crap"), HttpStatus.BAD_REQUEST);
 614         testErrorCode(restClient().put("/service", "{}"), HttpStatus.BAD_REQUEST);
 615         testErrorCode(restClient().put("/service", createServiceJson("name", -123)), HttpStatus.BAD_REQUEST);
 616         testErrorCode(restClient().put("/service", createServiceJson("name", 0, "missing.portandprotocol.com")),
 617             HttpStatus.BAD_REQUEST);
 618
 619         // GET non existing servive
 620         testErrorCode(restClient().get("/services?name=XXX"), HttpStatus.NOT_FOUND);
 621     }
 622
 623     @Test
 624     public void testServiceSupervision() throws Exception {
 625         putService("service1", 1, HttpStatus.CREATED);
 626         addPolicyType("type1", "ric1");
 627
 628         String url = putPolicyUrl("service1", "ric1", "type1", "instance1");
 629         final String policyBody = jsonString();
 630         restClient().put(url, policyBody).block();
 631
 632         assertThat(policies.size()).isEqualTo(1);
 633         assertThat(services.size()).isEqualTo(1);
 634
 635         // Timeout after ~1 second
 636         await().untilAsserted(() -> assertThat(policies.size()).isEqualTo(0));
 637         assertThat(services.size()).isEqualTo(0);
 638     }
 639
 640     @Test
 641     public void testGetPolicyStatus() throws Exception {
 642         addPolicy("id", "typeName", "service1", "ric1");
 643         assertThat(policies.size()).isEqualTo(1);
 644
 645         String url = "/policy_status?id=id";
 646         String rsp = restClient().get(url).block();
 647         assertThat(rsp.equals("OK")).isTrue();
 648
 649         // GET non existing policy status
 650         url = "/policy_status?id=XXX";
 651         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 652     }
 653
 654     private Policy addPolicy(String id, String typeName, String service, String ric) throws ServiceException {
 655         addRic(ric);
 656         Policy p = ImmutablePolicy.builder() //
 657             .id(id) //
 658             .json(jsonString()) //
 659             .ownerServiceName(service) //
 660             .ric(rics.getRic(ric)) //
 661             .type(addPolicyType(typeName, ric)) //
 662             .lastModified("lastModified") //
 663             .isTransient(false) //
 664             .build();
 665         policies.put(p);
 666         return p;
 667     }
 668
 669     private Policy addPolicy(String id, String typeName, String service) throws ServiceException {
 670         return addPolicy(id, typeName, service, "ric");
 671     }
 672
 673     private String createServiceJson(String name, long keepAliveIntervalSeconds) {
 674         return createServiceJson(name, keepAliveIntervalSeconds, "https://examples.javacodegeeks.com/core-java/");
 675     }
 676
 677     private String createServiceJson(String name, long keepAliveIntervalSeconds, String url) {
 678         ServiceRegistrationInfo service = new ServiceRegistrationInfo(name, keepAliveIntervalSeconds, url);
 679
 680         String json = gson.toJson(service);
 681         return json;
 682     }
 683
 684     private void putService(String name) {
 685         putService(name, 0, null);
 686     }
 687
 688     private void putService(String name, long keepAliveIntervalSeconds, @Nullable HttpStatus expectedStatus) {
 689         String url = "/service";
 690         String body = createServiceJson(name, keepAliveIntervalSeconds);
 691         ResponseEntity<String> resp = restClient().putForEntity(url, body).block();
 692         if (expectedStatus != null) {
 693             assertEquals(expectedStatus, resp.getStatusCode(), "");
 694         }
 695     }
 696
 697     private String baseUrl() {
 698         return "https://localhost:" + port;
 699     }
 700
 701     private String jsonString() {
 702         return "{\"servingCellNrcgi\":\"1\"}";
 703     }
 704
 705     @Test
 706     public void testConcurrency() throws Exception {
 707         final Instant startTime = Instant.now();
 708         List<Thread> threads = new ArrayList<>();
 709         a1ClientFactory.setResponseDelay(Duration.ofMillis(1));
 710         addRic("ric");
 711         addPolicyType("type1", "ric");
 712         addPolicyType("type2", "ric");
 713
 714         for (int i = 0; i < 10; ++i) {
 715             Thread t =
 716                 new Thread(new ConcurrencyTestRunnable(baseUrl(), supervision, a1ClientFactory, rics, policyTypes),
 717                     "TestThread_" + i);
 718             t.start();
 719             threads.add(t);
 720         }
 721         for (Thread t : threads) {
 722             t.join();
 723         }
 724         assertThat(policies.size()).isEqualTo(0);
 725         logger.info("Concurrency test took " + Duration.between(startTime, Instant.now()));
 726     }
 727
 728     private AsyncRestClient restClient() {
 729         return new AsyncRestClient(baseUrl(), this.applicationConfig.getWebClientConfig());
 730     }
 731
 732     private void testErrorCode(Mono<?> request, HttpStatus expStatus) {
 733         testErrorCode(request, expStatus, "");
 734     }
 735
 736     private void testErrorCode(Mono<?> request, HttpStatus expStatus, String responseContains) {
 737         StepVerifier.create(request) //
 738             .expectSubscription() //
 739             .expectErrorMatches(t -> checkWebClientError(t, expStatus, responseContains)) //
 740             .verify();
 741     }
 742
 743     private boolean checkWebClientError(Throwable t, HttpStatus expStatus, String responseContains) {
 744         assertTrue(t instanceof WebClientResponseException);
 745         WebClientResponseException e = (WebClientResponseException) t;
 746         assertThat(e.getStatusCode()).isEqualTo(expStatus);
 747         assertThat(e.getResponseBodyAsString()).contains(responseContains);
 748         return true;
 749     }
 750
 751     private MockA1Client getA1Client(String ricName) throws ServiceException {
 752         return a1ClientFactory.getOrCreateA1Client(ricName);
 753     }
 754
 755     private PolicyType createPolicyType(String policyTypeName) {
 756         return ImmutablePolicyType.builder() //
 757             .name(policyTypeName) //
 758             .schema("{\"title\":\"" + policyTypeName + "\"}") //
 759             .build();
 760     }
 761
 762     private PolicyType addPolicyType(String policyTypeName, String ricName) {
 763         PolicyType type = createPolicyType(policyTypeName);
 764         policyTypes.put(type);
 765         addRic(ricName).addSupportedPolicyType(type);
 766         return type;
 767     }
 768
 769     private Ric addRic(String ricName) {
 770         return addRic(ricName, null);
 771     }
 772
 773     private Ric addRic(String ricName, String managedElement) {
 774         if (rics.get(ricName) != null) {
 775             return rics.get(ricName);
 776         }
 777         List<String> mes = new ArrayList<>();
 778         if (managedElement != null) {
 779             mes.add(managedElement);
 780         }
 781         RicConfig conf = ImmutableRicConfig.builder() //
 782             .name(ricName) //
 783             .baseUrl(ricName) //
 784             .managedElementIds(mes) //
 785             .controllerName("") //
 786             .build();
 787         Ric ric = new Ric(conf);
 788         ric.setState(Ric.RicState.AVAILABLE);
 789         this.rics.put(ric);
 790         return ric;
 791     }
 792
 793     private static <T> List<T> parseList(String jsonString, Class<T> clazz) {
 794         List<T> result = new ArrayList<>();
 795         JsonArray jsonArr = JsonParser.parseString(jsonString).getAsJsonArray();
 796         for (JsonElement jsonElement : jsonArr) {
 797             T o = gson.fromJson(jsonElement.toString(), clazz);
 798             result.add(o);
 799         }
 800         return result;
 801     }
 802
 803     private static List<String> parseSchemas(String jsonString) {
 804         JsonArray arrayOfSchema = JsonParser.parseString(jsonString).getAsJsonArray();
 805         List<String> result = new ArrayList<>();
 806         for (JsonElement schemaObject : arrayOfSchema) {
 807             result.add(schemaObject.toString());
 808         }
 809         return result;
 810     }
 811 }