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.ImmutableWebClientConfig;
  50 import org.oransc.policyagent.configuration.RicConfig;
  51 import org.oransc.policyagent.configuration.WebClientConfig;
  52 import org.oransc.policyagent.controllers.PolicyInfo;
  53 import org.oransc.policyagent.controllers.ServiceRegistrationInfo;
  54 import org.oransc.policyagent.controllers.ServiceStatus;
  55 import org.oransc.policyagent.exceptions.ServiceException;
  56 import org.oransc.policyagent.repository.ImmutablePolicy;
  57 import org.oransc.policyagent.repository.ImmutablePolicyType;
  58 import org.oransc.policyagent.repository.Lock.LockType;
  59 import org.oransc.policyagent.repository.Policies;
  60 import org.oransc.policyagent.repository.Policy;
  61 import org.oransc.policyagent.repository.PolicyType;
  62 import org.oransc.policyagent.repository.PolicyTypes;
  63 import org.oransc.policyagent.repository.Ric;
  64 import org.oransc.policyagent.repository.Ric.RicState;
  65 import org.oransc.policyagent.repository.Rics;
  66 import org.oransc.policyagent.repository.Services;
  67 import org.oransc.policyagent.tasks.RicSupervision;
  68 import org.oransc.policyagent.tasks.ServiceSupervision;
  69 import org.oransc.policyagent.utils.MockA1Client;
  70 import org.oransc.policyagent.utils.MockA1ClientFactory;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73 import org.springframework.beans.factory.annotation.Autowired;
  74 import org.springframework.boot.test.context.SpringBootTest;
  75 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
  76 import org.springframework.boot.test.context.TestConfiguration;
  77 import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
  78 import org.springframework.boot.web.server.LocalServerPort;
  79 import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
  80 import org.springframework.context.ApplicationContext;
  81 import org.springframework.context.annotation.Bean;
  82 import org.springframework.http.HttpStatus;
  83 import org.springframework.http.ResponseEntity;
  84 import org.springframework.test.context.TestPropertySource;
  85 import org.springframework.test.context.junit.jupiter.SpringExtension;
  86 import org.springframework.web.reactive.function.client.WebClientResponseException;
  87
  88 import reactor.core.publisher.Mono;
  89 import reactor.test.StepVerifier;
  90 import reactor.util.annotation.Nullable;
  91
  92 @ExtendWith(SpringExtension.class)
  93 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
  94 @TestPropertySource(
  95     properties = { //
  96         "server.ssl.key-store=./config/keystore.jks", //
  97         "app.webclient.trust-store=./config/truststore.jks"})
  98 class ApplicationTest {
  99     private static final Logger logger = LoggerFactory.getLogger(ApplicationTest.class);
 100
 101     @Autowired
 102     ApplicationContext context;
 103
 104     @Autowired
 105     private Rics rics;
 106
 107     @Autowired
 108     private Policies policies;
 109
 110     @Autowired
 111     private PolicyTypes policyTypes;
 112
 113     @Autowired
 114     MockA1ClientFactory a1ClientFactory;
 115
 116     @Autowired
 117     RicSupervision supervision;
 118
 119     @Autowired
 120     ApplicationConfig applicationConfig;
 121
 122     @Autowired
 123     Services services;
 124
 125     private static Gson gson = new GsonBuilder() //
 126         .serializeNulls() //
 127         .create(); //
 128
 129     public static class MockApplicationConfig extends ApplicationConfig {
 130         @Override
 131         public String getLocalConfigurationFilePath() {
 132             return ""; // No config file loaded for the test
 133         }
 134     }
 135
 136     /**
 137      * Overrides the BeanFactory.
 138      */
 139     @TestConfiguration
 140     static class TestBeanFactory {
 141         private final PolicyTypes policyTypes = new PolicyTypes();
 142         private final Services services = new Services();
 143         private final Policies policies = new Policies();
 144         MockA1ClientFactory a1ClientFactory = null;
 145
 146         @Bean
 147         public ApplicationConfig getApplicationConfig() {
 148             return new MockApplicationConfig();
 149         }
 150
 151         @Bean
 152         MockA1ClientFactory getA1ClientFactory() {
 153             if (a1ClientFactory == null) {
 154                 this.a1ClientFactory = new MockA1ClientFactory(this.policyTypes);
 155             }
 156             return this.a1ClientFactory;
 157         }
 158
 159         @Bean
 160         public PolicyTypes getPolicyTypes() {
 161             return this.policyTypes;
 162         }
 163
 164         @Bean
 165         Policies getPolicies() {
 166             return this.policies;
 167         }
 168
 169         @Bean
 170         Services getServices() {
 171             return this.services;
 172         }
 173
 174         @Bean
 175         public ServiceSupervision getServiceSupervision() {
 176             Duration checkInterval = Duration.ofMillis(1);
 177             return new ServiceSupervision(this.services, this.policies, this.getA1ClientFactory(), checkInterval);
 178         }
 179
 180         @Bean
 181         public ServletWebServerFactory servletContainer() {
 182             return new TomcatServletWebServerFactory();
 183         }
 184
 185     }
 186
 187     @LocalServerPort
 188     private int port;
 189
 190     @BeforeEach
 191     void reset() {
 192         rics.clear();
 193         policies.clear();
 194         policyTypes.clear();
 195         services.clear();
 196         a1ClientFactory.reset();
 197     }
 198
 199     @AfterEach
 200     void verifyNoRicLocks() {
 201         for (Ric ric : this.rics.getRics()) {
 202             ric.getLock().lockBlocking(LockType.EXCLUSIVE);
 203             ric.getLock().unlockBlocking();
 204             assertThat(ric.getLock().getLockCounter()).isZero();
 205             assertThat(ric.getState()).isEqualTo(Ric.RicState.AVAILABLE);
 206         }
 207     }
 208
 209     @Test
 210     void testGetRics() throws Exception {
 211         addRic("ric1");
 212         this.addPolicyType("type1", "ric1");
 213         String url = "/rics?policyType=type1";
 214         String rsp = restClient().get(url).block();
 215         assertThat(rsp).contains("ric1");
 216
 217         // nameless type for ORAN A1 1.1
 218         addRic("ric2");
 219         this.addPolicyType("", "ric2");
 220         url = "/rics?policyType=";
 221
 222         // This tests also validation of trusted certs restClient(true)
 223         rsp = restClient(true).get(url).block();
 224         assertThat(rsp).contains("ric2") //
 225             .doesNotContain("ric1") //
 226             .contains("AVAILABLE");
 227
 228         // All RICs
 229         rsp = restClient().get("/rics").block();
 230         assertThat(rsp).contains("ric2") //
 231             .contains("ric1");
 232
 233         // Non existing policy type
 234         url = "/rics?policyType=XXXX";
 235         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 236     }
 237
 238     @Test
 239     void testSynchronization() throws Exception {
 240         // Two polictypes will be put in the NearRT RICs
 241         PolicyTypes nearRtRicPolicyTypes = new PolicyTypes();
 242         nearRtRicPolicyTypes.put(createPolicyType("typeName"));
 243         nearRtRicPolicyTypes.put(createPolicyType("typeName2"));
 244         this.a1ClientFactory.setPolicyTypes(nearRtRicPolicyTypes);
 245
 246         // One type and one instance added to the agent storage
 247         final String ric1Name = "ric1";
 248         Ric ric1 = addRic(ric1Name);
 249         Policy policy2 = addPolicy("policyId2", "typeName", "service", ric1Name);
 250         Ric ric2 = addRic("ric2");
 251
 252         getA1Client(ric1Name).putPolicy(policy2); // put it in the RIC
 253         policies.remove(policy2); // Remove it from the repo -> should be deleted in the RIC
 254
 255         String policyId = "policyId";
 256         Policy policy = addPolicy(policyId, "typeName", "service", ric1Name); // This should be created in the RIC
 257         supervision.checkAllRics(); // The created policy should be put in the RIC
 258
 259         // Wait until synch is completed
 260         await().untilAsserted(() -> RicState.SYNCHRONIZING.equals(rics.getRic(ric1Name).getState()));
 261         await().untilAsserted(() -> RicState.AVAILABLE.equals(rics.getRic(ric1Name).getState()));
 262         await().untilAsserted(() -> RicState.AVAILABLE.equals(rics.getRic("ric2").getState()));
 263
 264         Policies ricPolicies = getA1Client(ric1Name).getPolicies();
 265         assertThat(ricPolicies.size()).isEqualTo(1);
 266         Policy ricPolicy = ricPolicies.get(policyId);
 267         assertThat(ricPolicy.json()).isEqualTo(policy.json());
 268
 269         // Both types should be in the agent storage after the synch
 270         assertThat(ric1.getSupportedPolicyTypes()).hasSize(2);
 271         assertThat(ric2.getSupportedPolicyTypes()).hasSize(2);
 272     }
 273
 274     @Test
 275     void testGetRicForManagedElement_thenReturnCorrectRic() throws Exception {
 276         String ricName = "ric1";
 277         String managedElementId = "kista_1";
 278         addRic(ricName, managedElementId);
 279
 280         String url = "/ric?managedElementId=" + managedElementId;
 281         String rsp = restClient().get(url).block();
 282         assertThat(rsp).isEqualTo(ricName);
 283
 284         // test GET RIC for ManagedElement that does not exist
 285         url = "/ric?managedElementId=" + "junk";
 286         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 287     }
 288
 289     private String putPolicyUrl(String serviceName, String ricName, String policyTypeName, String policyInstanceId,
 290         boolean isTransient) {
 291         String url;
 292         if (policyTypeName.isEmpty()) {
 293             url = "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName;
 294         } else {
 295             url = "/policy?id=" + policyInstanceId + "&ric=" + ricName + "&service=" + serviceName + "&type="
 296                 + policyTypeName;
 297         }
 298         if (isTransient) {
 299             url += "&transient=true";
 300         }
 301         return url;
 302     }
 303
 304     private String putPolicyUrl(String serviceName, String ricName, String policyTypeName, String policyInstanceId) {
 305         return putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId, false);
 306     }
 307
 308     @Test
 309     void testPutPolicy() throws Exception {
 310         String serviceName = "service1";
 311         String ricName = "ric1";
 312         String policyTypeName = "type1";
 313         String policyInstanceId = "instance1";
 314
 315         putService(serviceName);
 316         addPolicyType(policyTypeName, ricName);
 317
 318         // PUT a transient policy
 319         String url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId, true);
 320         final String policyBody = jsonString();
 321         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 322
 323         restClient().put(url, policyBody).block();
 324
 325         Policy policy = policies.getPolicy(policyInstanceId);
 326         assertThat(policy).isNotNull();
 327         assertThat(policy.id()).isEqualTo(policyInstanceId);
 328         assertThat(policy.ownerServiceName()).isEqualTo(serviceName);
 329         assertThat(policy.ric().name()).isEqualTo("ric1");
 330         assertThat(policy.isTransient()).isTrue();
 331
 332         // Put a non transient policy
 333         url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 334         restClient().put(url, policyBody).block();
 335         policy = policies.getPolicy(policyInstanceId);
 336         assertThat(policy.isTransient()).isFalse();
 337
 338         url = "/policies";
 339         String rsp = restClient().get(url).block();
 340         assertThat(rsp).as("Response contains policy instance ID.").contains(policyInstanceId);
 341
 342         url = "/policy?id=" + policyInstanceId;
 343         rsp = restClient().get(url).block();
 344         assertThat(rsp).isEqualTo(policyBody);
 345
 346         // Test of error codes
 347         url = putPolicyUrl(serviceName, ricName + "XX", policyTypeName, policyInstanceId);
 348         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 349
 350         url = putPolicyUrl(serviceName, ricName, policyTypeName + "XX", policyInstanceId);
 351         addPolicyType(policyTypeName + "XX", "otherRic");
 352         testErrorCode(restClient().put(url, policyBody), HttpStatus.NOT_FOUND);
 353
 354         url = putPolicyUrl(serviceName, ricName, policyTypeName, policyInstanceId);
 355         this.rics.getRic(ricName).setState(Ric.RicState.SYNCHRONIZING);
 356         testErrorCode(restClient().put(url, policyBody), HttpStatus.LOCKED);
 357         this.rics.getRic(ricName).setState(Ric.RicState.AVAILABLE);
 358     }
 359
 360     @Test
 361     /**
 362      * Test that HttpStatus and body from failing REST call to A1 is passed on to the caller.
 363      *
 364      * @throws ServiceException
 365      */
 366     void testErrorFromRic() throws ServiceException {
 367         putService("service1");
 368         addPolicyType("type1", "ric1");
 369
 370         String url = putPolicyUrl("service1", "ric1", "type1", "id1");
 371         MockA1Client a1Client = a1ClientFactory.getOrCreateA1Client("ric1");
 372         HttpStatus httpStatus = HttpStatus.INTERNAL_SERVER_ERROR;
 373         String responseBody = "Refused";
 374         byte[] responseBodyBytes = responseBody.getBytes(StandardCharsets.UTF_8);
 375
 376         WebClientResponseException a1Exception = new WebClientResponseException(httpStatus.value(), "statusText", null,
 377             responseBodyBytes, StandardCharsets.UTF_8, null);
 378         doReturn(Mono.error(a1Exception)).when(a1Client).putPolicy(any());
 379
 380         // PUT Policy
 381         testErrorCode(restClient().put(url, "{}"), httpStatus, responseBody);
 382
 383         // DELETE POLICY
 384         this.addPolicy("instance1", "type1", "service1", "ric1");
 385         doReturn(Mono.error(a1Exception)).when(a1Client).deletePolicy(any());
 386         testErrorCode(restClient().delete("/policy?id=instance1"), httpStatus, responseBody);
 387
 388         // GET STATUS
 389         this.addPolicy("instance1", "type1", "service1", "ric1");
 390         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 391         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus, responseBody);
 392
 393         // Check that empty response body is OK
 394         a1Exception = new WebClientResponseException(httpStatus.value(), "", null, null, null, null);
 395         doReturn(Mono.error(a1Exception)).when(a1Client).getPolicyStatus(any());
 396         testErrorCode(restClient().get("/policy_status?id=instance1"), httpStatus);
 397     }
 398
 399     @Test
 400     void testPutTypelessPolicy() throws Exception {
 401         putService("service1");
 402         addPolicyType("", "ric1");
 403         String url = putPolicyUrl("service1", "ric1", "", "id1");
 404         restClient().put(url, jsonString()).block();
 405
 406         String rsp = restClient().get("/policies").block();
 407         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 408         assertThat(info).hasSize(1);
 409         PolicyInfo policyInfo = info.get(0);
 410         assertThat(policyInfo.id).isEqualTo("id1");
 411         assertThat(policyInfo.type).isEmpty();
 412     }
 413
 414     @Test
 415     void testRefuseToUpdatePolicy() throws Exception {
 416         // Test that only the json can be changed for a already created policy
 417         // In this case service is attempted to be changed
 418         this.addRic("ric1");
 419         this.addRic("ricXXX");
 420         this.addPolicy("instance1", "type1", "service1", "ric1");
 421         this.addPolicy("instance2", "type1", "service1", "ricXXX");
 422
 423         // Try change ric1 -> ricXXX
 424         String urlWrongRic = putPolicyUrl("service1", "ricXXX", "type1", "instance1");
 425         testErrorCode(restClient().put(urlWrongRic, jsonString()), HttpStatus.CONFLICT);
 426     }
 427
 428     @Test
 429     void testGetPolicy() throws Exception {
 430         String url = "/policy?id=id";
 431         Policy policy = addPolicy("id", "typeName", "service1", "ric1");
 432         {
 433             String rsp = restClient().get(url).block();
 434             assertThat(rsp).isEqualTo(policy.json());
 435         }
 436         {
 437             policies.remove(policy);
 438             testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 439         }
 440     }
 441
 442     @Test
 443     void testDeletePolicy() throws Exception {
 444         addPolicy("id", "typeName", "service1", "ric1");
 445         assertThat(policies.size()).isEqualTo(1);
 446
 447         String url = "/policy?id=id";
 448         ResponseEntity<String> entity = restClient().deleteForEntity(url).block();
 449
 450         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.NO_CONTENT);
 451         assertThat(policies.size()).isZero();
 452
 453         // Delete a non existing policy
 454         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 455     }
 456
 457     @Test
 458     void testGetPolicySchemas() throws Exception {
 459         addPolicyType("type1", "ric1");
 460         addPolicyType("type2", "ric2");
 461
 462         String url = "/policy_schemas";
 463         String rsp = this.restClient().get(url).block();
 464         assertThat(rsp).contains("type1") //
 465             .contains("[{\"title\":\"type2\"}");
 466
 467         List<String> info = parseSchemas(rsp);
 468         assertThat(info).hasSize(2);
 469
 470         url = "/policy_schemas?ric=ric1";
 471         rsp = restClient().get(url).block();
 472         assertThat(rsp).contains("type1");
 473         info = parseSchemas(rsp);
 474         assertThat(info).hasSize(1);
 475
 476         // Get schema for non existing RIC
 477         url = "/policy_schemas?ric=ric1XXX";
 478         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 479     }
 480
 481     @Test
 482     void testGetPolicySchema() throws Exception {
 483         addPolicyType("type1", "ric1");
 484         addPolicyType("type2", "ric2");
 485
 486         String url = "/policy_schema?id=type1";
 487         String rsp = restClient().get(url).block();
 488         logger.info(rsp);
 489         assertThat(rsp).contains("type1") //
 490             .contains("title");
 491
 492         // Get non existing schema
 493         url = "/policy_schema?id=type1XX";
 494         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 495     }
 496
 497     @Test
 498     void testGetPolicyTypes() throws Exception {
 499         addPolicyType("type1", "ric1");
 500         addPolicyType("type2", "ric2");
 501
 502         String url = "/policy_types";
 503         String rsp = restClient().get(url).block();
 504         assertThat(rsp).isEqualTo("[\"type2\",\"type1\"]");
 505
 506         url = "/policy_types?ric=ric1";
 507         rsp = restClient().get(url).block();
 508         assertThat(rsp).isEqualTo("[\"type1\"]");
 509
 510         // Get policy types for non existing RIC
 511         url = "/policy_types?ric=ric1XXX";
 512         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 513     }
 514
 515     @Test
 516     void testGetPolicies() throws Exception {
 517         addPolicy("id1", "type1", "service1");
 518
 519         String url = "/policies";
 520         String rsp = restClient().get(url).block();
 521         logger.info(rsp);
 522         List<PolicyInfo> info = parseList(rsp, PolicyInfo.class);
 523         assertThat(info).hasSize(1);
 524         PolicyInfo policyInfo = info.get(0);
 525         assert (policyInfo.validate());
 526         assertThat(policyInfo.id).isEqualTo("id1");
 527         assertThat(policyInfo.type).isEqualTo("type1");
 528         assertThat(policyInfo.service).isEqualTo("service1");
 529     }
 530
 531     @Test
 532     void testGetPoliciesFilter() throws Exception {
 533         addPolicy("id1", "type1", "service1");
 534         addPolicy("id2", "type1", "service2");
 535         addPolicy("id3", "type2", "service1");
 536
 537         String url = "/policies?type=type1";
 538         String rsp = restClient().get(url).block();
 539         logger.info(rsp);
 540         assertThat(rsp).contains("id1") //
 541             .contains("id2") //
 542             .doesNotContain("id3");
 543
 544         url = "/policies?type=type1&service=service2";
 545         rsp = restClient().get(url).block();
 546         logger.info(rsp);
 547         assertThat(rsp).doesNotContain("id1") //
 548             .contains("id2") //
 549             .doesNotContain("id3");
 550
 551         // Test get policies for non existing type
 552         url = "/policies?type=type1XXX";
 553         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 554
 555         // Test get policies for non existing RIC
 556         url = "/policies?ric=XXX";
 557         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 558     }
 559
 560     @Test
 561     void testGetPolicyIdsFilter() throws Exception {
 562         addPolicy("id1", "type1", "service1", "ric1");
 563         addPolicy("id2", "type1", "service2", "ric1");
 564         addPolicy("id3", "type2", "service1", "ric1");
 565
 566         String url = "/policy_ids?type=type1";
 567         String rsp = restClient().get(url).block();
 568         logger.info(rsp);
 569         assertThat(rsp).contains("id1") //
 570             .contains("id2") //
 571             .doesNotContain("id3");
 572
 573         url = "/policy_ids?type=type1&service=service1&ric=ric1";
 574         rsp = restClient().get(url).block();
 575         assertThat(rsp).isEqualTo("[\"id1\"]");
 576
 577         // Test get policy ids for non existing type
 578         url = "/policy_ids?type=type1XXX";
 579         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 580
 581         // Test get policy ids for non existing RIC
 582         url = "/policy_ids?ric=XXX";
 583         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 584     }
 585
 586     @Test
 587     void testPutAndGetService() throws Exception {
 588         // PUT
 589         String serviceName = "name";
 590         putService(serviceName, 0, HttpStatus.CREATED);
 591         putService(serviceName, 0, HttpStatus.OK);
 592
 593         // GET one service
 594         String url = "/services?name=name";
 595         String rsp = restClient().get(url).block();
 596         List<ServiceStatus> info = parseList(rsp, ServiceStatus.class);
 597         assertThat(info).hasSize(1);
 598         ServiceStatus status = info.iterator().next();
 599         assertThat(status.keepAliveIntervalSeconds).isZero();
 600         assertThat(status.serviceName).isEqualTo(serviceName);
 601
 602         // GET (all)
 603         url = "/services";
 604         rsp = restClient().get(url).block();
 605         assertThat(rsp).as("Response contains service name").contains(serviceName);
 606         logger.info(rsp);
 607
 608         // Keep alive
 609         url = "/services/keepalive?name=name";
 610         ResponseEntity<String> entity = restClient().putForEntity(url).block();
 611         assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
 612
 613         // DELETE service
 614         assertThat(services.size()).isEqualTo(1);
 615         url = "/services?name=name";
 616         restClient().delete(url).block();
 617         assertThat(services.size()).isZero();
 618
 619         // Keep alive, no registered service
 620         testErrorCode(restClient().put("/services/keepalive?name=name", ""), HttpStatus.NOT_FOUND);
 621
 622         // PUT servive with bad payload
 623         testErrorCode(restClient().put("/service", "crap"), HttpStatus.BAD_REQUEST);
 624         testErrorCode(restClient().put("/service", "{}"), HttpStatus.BAD_REQUEST);
 625         testErrorCode(restClient().put("/service", createServiceJson(serviceName, -123)), HttpStatus.BAD_REQUEST);
 626         testErrorCode(restClient().put("/service", createServiceJson(serviceName, 0, "missing.portandprotocol.com")),
 627             HttpStatus.BAD_REQUEST);
 628
 629         // GET non existing service
 630         testErrorCode(restClient().get("/services?name=XXX"), HttpStatus.NOT_FOUND);
 631     }
 632
 633     @Test
 634     void testServiceSupervision() throws Exception {
 635         putService("service1", 1, HttpStatus.CREATED);
 636         addPolicyType("type1", "ric1");
 637
 638         String url = putPolicyUrl("service1", "ric1", "type1", "instance1");
 639         final String policyBody = jsonString();
 640         restClient().put(url, policyBody).block();
 641
 642         assertThat(policies.size()).isEqualTo(1);
 643         assertThat(services.size()).isEqualTo(1);
 644
 645         // Timeout after ~1 second
 646         await().untilAsserted(() -> assertThat(policies.size()).isZero());
 647         assertThat(services.size()).isZero();
 648     }
 649
 650     @Test
 651     void testGetPolicyStatus() throws Exception {
 652         addPolicy("id", "typeName", "service1", "ric1");
 653         assertThat(policies.size()).isEqualTo(1);
 654
 655         String url = "/policy_status?id=id";
 656         String rsp = restClient().get(url).block();
 657         assertThat(rsp).isEqualTo("OK");
 658
 659         // GET non existing policy status
 660         url = "/policy_status?id=XXX";
 661         testErrorCode(restClient().get(url), HttpStatus.NOT_FOUND);
 662     }
 663
 664     private Policy addPolicy(String id, String typeName, String service, String ric) throws ServiceException {
 665         addRic(ric);
 666         Policy policy = ImmutablePolicy.builder() //
 667             .id(id) //
 668             .json(jsonString()) //
 669             .ownerServiceName(service) //
 670             .ric(rics.getRic(ric)) //
 671             .type(addPolicyType(typeName, ric)) //
 672             .lastModified("lastModified") //
 673             .isTransient(false) //
 674             .build();
 675         policies.put(policy);
 676         return policy;
 677     }
 678
 679     private Policy addPolicy(String id, String typeName, String service) throws ServiceException {
 680         return addPolicy(id, typeName, service, "ric");
 681     }
 682
 683     private String createServiceJson(String name, long keepAliveIntervalSeconds) {
 684         return createServiceJson(name, keepAliveIntervalSeconds, "https://examples.javacodegeeks.com/core-java/");
 685     }
 686
 687     private String createServiceJson(String name, long keepAliveIntervalSeconds, String url) {
 688         ServiceRegistrationInfo service = new ServiceRegistrationInfo(name, keepAliveIntervalSeconds, url);
 689
 690         String json = gson.toJson(service);
 691         return json;
 692     }
 693
 694     private void putService(String name) {
 695         putService(name, 0, null);
 696     }
 697
 698     private void putService(String name, long keepAliveIntervalSeconds, @Nullable HttpStatus expectedStatus) {
 699         String url = "/service";
 700         String body = createServiceJson(name, keepAliveIntervalSeconds);
 701         ResponseEntity<String> resp = restClient().putForEntity(url, body).block();
 702         if (expectedStatus != null) {
 703             assertEquals(expectedStatus, resp.getStatusCode(), "");
 704         }
 705     }
 706
 707     private String baseUrl() {
 708         return "https://localhost:" + port;
 709     }
 710
 711     private String jsonString() {
 712         return "{\"servingCellNrcgi\":\"1\"}";
 713     }
 714
 715     @Test
 716     void testConcurrency() throws Exception {
 717         final Instant startTime = Instant.now();
 718         List<Thread> threads = new ArrayList<>();
 719         a1ClientFactory.setResponseDelay(Duration.ofMillis(1));
 720         addRic("ric");
 721         addPolicyType("type1", "ric");
 722         addPolicyType("type2", "ric");
 723
 724         for (int i = 0; i < 10; ++i) {
 725             Thread thread =
 726                 new Thread(new ConcurrencyTestRunnable(baseUrl(), supervision, a1ClientFactory, rics, policyTypes),
 727                     "TestThread_" + i);
 728             thread.start();
 729             threads.add(thread);
 730         }
 731         for (Thread t : threads) {
 732             t.join();
 733         }
 734         assertThat(policies.size()).isZero();
 735         logger.info("Concurrency test took " + Duration.between(startTime, Instant.now()));
 736     }
 737
 738     private AsyncRestClient restClient(boolean useTrustValidation) {
 739         WebClientConfig config = this.applicationConfig.getWebClientConfig();
 740         config = ImmutableWebClientConfig.builder() //
 741             .isTrustStoreUsed(useTrustValidation) //
 742             .trustStore(config.trustStore()) //
 743             .trustStorePassword(config.trustStorePassword()) //
 744             .build();
 745
 746         return new AsyncRestClient(baseUrl(), config);
 747     }
 748
 749     private AsyncRestClient restClient() {
 750         return restClient(false);
 751     }
 752
 753     private void testErrorCode(Mono<?> request, HttpStatus expStatus) {
 754         testErrorCode(request, expStatus, "");
 755     }
 756
 757     private void testErrorCode(Mono<?> request, HttpStatus expStatus, String responseContains) {
 758         StepVerifier.create(request) //
 759             .expectSubscription() //
 760             .expectErrorMatches(t -> checkWebClientError(t, expStatus, responseContains)) //
 761             .verify();
 762     }
 763
 764     private boolean checkWebClientError(Throwable throwable, HttpStatus expStatus, String responseContains) {
 765         assertTrue(throwable instanceof WebClientResponseException);
 766         WebClientResponseException responseException = (WebClientResponseException) throwable;
 767         assertThat(responseException.getStatusCode()).isEqualTo(expStatus);
 768         assertThat(responseException.getResponseBodyAsString()).contains(responseContains);
 769         return true;
 770     }
 771
 772     private MockA1Client getA1Client(String ricName) throws ServiceException {
 773         return a1ClientFactory.getOrCreateA1Client(ricName);
 774     }
 775
 776     private PolicyType createPolicyType(String policyTypeName) {
 777         return ImmutablePolicyType.builder() //
 778             .name(policyTypeName) //
 779             .schema("{\"title\":\"" + policyTypeName + "\"}") //
 780             .build();
 781     }
 782
 783     private PolicyType addPolicyType(String policyTypeName, String ricName) {
 784         PolicyType type = createPolicyType(policyTypeName);
 785         policyTypes.put(type);
 786         addRic(ricName).addSupportedPolicyType(type);
 787         return type;
 788     }
 789
 790     private Ric addRic(String ricName) {
 791         return addRic(ricName, null);
 792     }
 793
 794     private Ric addRic(String ricName, String managedElement) {
 795         if (rics.get(ricName) != null) {
 796             return rics.get(ricName);
 797         }
 798         List<String> mes = new ArrayList<>();
 799         if (managedElement != null) {
 800             mes.add(managedElement);
 801         }
 802         RicConfig conf = ImmutableRicConfig.builder() //
 803             .name(ricName) //
 804             .baseUrl(ricName) //
 805             .managedElementIds(mes) //
 806             .controllerName("") //
 807             .build();
 808         Ric ric = new Ric(conf);
 809         ric.setState(Ric.RicState.AVAILABLE);
 810         this.rics.put(ric);
 811         return ric;
 812     }
 813
 814     private static <T> List<T> parseList(String jsonString, Class<T> clazz) {
 815         List<T> result = new ArrayList<>();
 816         JsonArray jsonArr = JsonParser.parseString(jsonString).getAsJsonArray();
 817         for (JsonElement jsonElement : jsonArr) {
 818             T json = gson.fromJson(jsonElement.toString(), clazz);
 819             result.add(json);
 820         }
 821         return result;
 822     }
 823
 824     private static List<String> parseSchemas(String jsonString) {
 825         JsonArray arrayOfSchema = JsonParser.parseString(jsonString).getAsJsonArray();
 826         List<String> result = new ArrayList<>();
 827         for (JsonElement schemaObject : arrayOfSchema) {
 828             result.add(schemaObject.toString());
 829         }
 830         return result;
 831     }
 832 }