models-interactions/model-actors/actorServiceProvider/src/test/java/org/onap/policy/controlloop/actorserviceprovider/impl/HttpOperationTest.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP
   4  * ================================================================================
   5  * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.policy.controlloop.actorserviceprovider.impl;
  22
  23 import static org.assertj.core.api.Assertions.assertThat;
  24 import static org.assertj.core.api.Assertions.assertThatCode;
  25 import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
  26 import static org.assertj.core.api.Assertions.assertThatThrownBy;
  27 import static org.junit.Assert.assertEquals;
  28 import static org.junit.Assert.assertFalse;
  29 import static org.junit.Assert.assertNotNull;
  30 import static org.junit.Assert.assertSame;
  31 import static org.junit.Assert.assertTrue;
  32 import static org.mockito.ArgumentMatchers.any;
  33 import static org.mockito.Mockito.when;
  34
  35 import java.util.Collections;
  36 import java.util.Map;
  37 import java.util.Properties;
  38 import java.util.UUID;
  39 import java.util.concurrent.CancellationException;
  40 import java.util.concurrent.CompletableFuture;
  41 import java.util.concurrent.ExecutionException;
  42 import java.util.concurrent.Executor;
  43 import java.util.concurrent.Future;
  44 import java.util.concurrent.TimeUnit;
  45 import java.util.concurrent.TimeoutException;
  46 import java.util.concurrent.atomic.AtomicReference;
  47 import javax.ws.rs.Consumes;
  48 import javax.ws.rs.DELETE;
  49 import javax.ws.rs.GET;
  50 import javax.ws.rs.POST;
  51 import javax.ws.rs.PUT;
  52 import javax.ws.rs.Path;
  53 import javax.ws.rs.Produces;
  54 import javax.ws.rs.client.Entity;
  55 import javax.ws.rs.client.InvocationCallback;
  56 import javax.ws.rs.core.MediaType;
  57 import javax.ws.rs.core.Response;
  58 import javax.ws.rs.core.Response.Status;
  59 import lombok.Getter;
  60 import lombok.Setter;
  61 import org.junit.AfterClass;
  62 import org.junit.Before;
  63 import org.junit.BeforeClass;
  64 import org.junit.Test;
  65 import org.junit.runner.RunWith;
  66 import org.mockito.Mock;
  67 import org.mockito.junit.MockitoJUnitRunner;
  68 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
  69 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
  70 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams.TopicParamsBuilder;
  71 import org.onap.policy.common.endpoints.http.client.HttpClient;
  72 import org.onap.policy.common.endpoints.http.client.HttpClientFactory;
  73 import org.onap.policy.common.endpoints.http.client.HttpClientFactoryInstance;
  74 import org.onap.policy.common.endpoints.http.server.HttpServletServer;
  75 import org.onap.policy.common.endpoints.http.server.HttpServletServerFactoryInstance;
  76 import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
  77 import org.onap.policy.common.endpoints.utils.NetLoggerUtil.EventType;
  78 import org.onap.policy.common.gson.GsonMessageBodyHandler;
  79 import org.onap.policy.common.utils.coder.CoderException;
  80 import org.onap.policy.common.utils.network.NetworkUtil;
  81 import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
  82 import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
  83 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
  84 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpConfig;
  85 import org.onap.policy.controlloop.actorserviceprovider.parameters.HttpParams;
  86
  87 @RunWith(MockitoJUnitRunner.class)
  88 public class HttpOperationTest {
  89
  90     private static final IllegalStateException EXPECTED_EXCEPTION = new IllegalStateException("expected exception");
  91     private static final String ACTOR = "my-actor";
  92     private static final String OPERATION = "my-name";
  93     private static final String HTTP_CLIENT = "my-client";
  94     private static final String HTTP_NO_SERVER = "my-http-no-server-client";
  95     private static final String MEDIA_TYPE_APPLICATION_JSON = "application/json";
  96     private static final String BASE_URI = "oper";
  97     private static final String PATH = "/my-path";
  98     private static final String TEXT = "my-text";
  99     private static final UUID REQ_ID = UUID.randomUUID();
 100
 101     /**
 102      * {@code True} if the server should reject the request, {@code false} otherwise.
 103      */
 104     private static boolean rejectRequest;
 105
 106     // call counts of each method type in the server
 107     private static int nget;
 108     private static int npost;
 109     private static int nput;
 110     private static int ndelete;
 111
 112     @Mock
 113     private HttpClient client;
 114     @Mock
 115     private HttpClientFactory clientFactory;
 116     @Mock
 117     private Response response;
 118     @Mock
 119     private Executor executor;
 120
 121     private ControlLoopOperationParams params;
 122     private OperationOutcome outcome;
 123     private AtomicReference<InvocationCallback<Response>> callback;
 124     private Future<Response> future;
 125     private HttpConfig config;
 126     private MyGetOperation<String> oper;
 127
 128     /**
 129      * Starts the simulator.
 130      */
 131     @BeforeClass
 132     public static void setUpBeforeClass() throws Exception {
 133         // allocate a port
 134         int port = NetworkUtil.allocPort();
 135
 136         /*
 137          * Start the simulator. Must use "Properties" to configure it, otherwise the
 138          * server will use the wrong serialization provider.
 139          */
 140         Properties svrprops = getServerProperties("my-server", port);
 141         HttpServletServerFactoryInstance.getServerFactory().build(svrprops).forEach(HttpServletServer::start);
 142
 143         if (!NetworkUtil.isTcpPortOpen("localhost", port, 100, 100)) {
 144             HttpServletServerFactoryInstance.getServerFactory().destroy();
 145             throw new IllegalStateException("server is not running");
 146         }
 147
 148         /*
 149          * Start the clients, one to the server, and one to a non-existent server.
 150          */
 151         TopicParamsBuilder builder = BusTopicParams.builder().managed(true).hostname("localhost").basePath(BASE_URI);
 152
 153         HttpClientFactoryInstance.getClientFactory().build(builder.clientName(HTTP_CLIENT).port(port).build());
 154
 155         HttpClientFactoryInstance.getClientFactory()
 156                         .build(builder.clientName(HTTP_NO_SERVER).port(NetworkUtil.allocPort()).build());
 157     }
 158
 159     /**
 160      * Destroys the Http factories and stops the appender.
 161      */
 162     @AfterClass
 163     public static void tearDownAfterClass() {
 164         HttpClientFactoryInstance.getClientFactory().destroy();
 165         HttpServletServerFactoryInstance.getServerFactory().destroy();
 166     }
 167
 168     /**
 169      * Initializes fields, including {@link #oper}, and resets the static fields used by
 170      * the REST server.
 171      */
 172     @Before
 173     public void setUp() {
 174         rejectRequest = false;
 175         nget = 0;
 176         npost = 0;
 177         nput = 0;
 178         ndelete = 0;
 179
 180         when(response.readEntity(String.class)).thenReturn(TEXT);
 181         when(response.getStatus()).thenReturn(200);
 182
 183         params = ControlLoopOperationParams.builder().actor(ACTOR).operation(OPERATION).requestId(REQ_ID).build();
 184
 185         outcome = params.makeOutcome();
 186
 187         callback = new AtomicReference<>();
 188         future = new CompletableFuture<>();
 189
 190         when(clientFactory.get(any())).thenReturn(client);
 191
 192         initConfig(HTTP_CLIENT);
 193
 194         oper = new MyGetOperation<>(String.class);
 195     }
 196
 197     @Test
 198     public void testHttpOperator() {
 199         assertEquals(ACTOR, oper.getActorName());
 200         assertEquals(OPERATION, oper.getName());
 201         assertEquals(ACTOR + "." + OPERATION, oper.getFullName());
 202     }
 203
 204     @Test
 205     public void testMakeHeaders() {
 206         assertEquals(Collections.emptyMap(), oper.makeHeaders());
 207     }
 208
 209     @Test
 210     public void testGetPath() {
 211         assertEquals(PATH, oper.getPath());
 212     }
 213
 214     @Test
 215     public void testMakeUrl() {
 216         // use a real client
 217         initRealConfig(HTTP_CLIENT);
 218
 219         oper = new MyGetOperation<>(String.class);
 220
 221         assertThat(oper.getUrl()).endsWith("/" + BASE_URI + PATH);
 222     }
 223
 224     @Test
 225     public void testDoConfigureMapOfStringObject_testGetClient_testGetPath_testGetTimeoutMs() {
 226
 227         // use value from operator
 228         assertEquals(1000L, oper.getTimeoutMs(null));
 229         assertEquals(1000L, oper.getTimeoutMs(0));
 230
 231         // should use given value
 232         assertEquals(20 * 1000L, oper.getTimeoutMs(20));
 233     }
 234
 235     /**
 236      * Tests handleResponse() when it completes.
 237      */
 238     @Test
 239     public void testHandleResponseComplete() throws Exception {
 240         CompletableFuture<OperationOutcome> future2 = oper.handleResponse(outcome, PATH, cb -> {
 241             callback.set(cb);
 242             return future;
 243         });
 244
 245         assertFalse(future2.isDone());
 246         assertNotNull(callback.get());
 247         callback.get().completed(response);
 248
 249         assertSame(outcome, future2.get(5, TimeUnit.SECONDS));
 250         assertSame(TEXT, outcome.getResponse());
 251
 252         assertEquals(OperationResult.SUCCESS, outcome.getResult());
 253     }
 254
 255     /**
 256      * Tests handleResponse() when it fails.
 257      */
 258     @Test
 259     public void testHandleResponseFailed() throws Exception {
 260         CompletableFuture<OperationOutcome> future2 = oper.handleResponse(outcome, PATH, cb -> {
 261             callback.set(cb);
 262             return future;
 263         });
 264
 265         assertFalse(future2.isDone());
 266         assertNotNull(callback.get());
 267         callback.get().failed(EXPECTED_EXCEPTION);
 268
 269         assertThatThrownBy(() -> future2.get(5, TimeUnit.SECONDS)).hasCause(EXPECTED_EXCEPTION);
 270
 271         // future and future2 may be completed in parallel so we must wait again
 272         assertThatThrownBy(() -> future.get(5, TimeUnit.SECONDS)).isInstanceOf(CancellationException.class);
 273         assertTrue(future.isCancelled());
 274     }
 275
 276     /**
 277      * Tests processResponse() when it's a success and the response type is a String.
 278      */
 279     @Test
 280     public void testProcessResponseSuccessString() throws Exception {
 281         CompletableFuture<OperationOutcome> result = oper.processResponse(outcome, PATH, response);
 282         assertTrue(result.isDone());
 283         assertSame(outcome, result.get());
 284         assertEquals(OperationResult.SUCCESS, outcome.getResult());
 285         assertSame(TEXT, outcome.getResponse());
 286     }
 287
 288     /**
 289      * Tests processResponse() when it's a failure.
 290      */
 291     @Test
 292     public void testProcessResponseFailure() throws Exception {
 293         when(response.getStatus()).thenReturn(555);
 294         CompletableFuture<OperationOutcome> result = oper.processResponse(outcome, PATH, response);
 295         assertTrue(result.isDone());
 296         assertSame(outcome, result.get());
 297         assertEquals(OperationResult.FAILURE, outcome.getResult());
 298         assertSame(TEXT, outcome.getResponse());
 299     }
 300
 301     /**
 302      * Tests processResponse() when the decoder succeeds.
 303      */
 304     @Test
 305     public void testProcessResponseDecodeOk() throws Exception {
 306         when(response.readEntity(String.class)).thenReturn("10");
 307
 308         MyGetOperation<Integer> oper2 = new MyGetOperation<>(Integer.class);
 309
 310         CompletableFuture<OperationOutcome> result = oper2.processResponse(outcome, PATH, response);
 311         assertTrue(result.isDone());
 312         assertSame(outcome, result.get());
 313         assertEquals(OperationResult.SUCCESS, outcome.getResult());
 314         assertEquals(Integer.valueOf(10), outcome.getResponse());
 315     }
 316
 317     /**
 318      * Tests processResponse() when the decoder throws an exception.
 319      */
 320     @Test
 321     public void testProcessResponseDecodeExcept() throws CoderException {
 322         MyGetOperation<Integer> oper2 = new MyGetOperation<>(Integer.class);
 323
 324         assertThatIllegalArgumentException().isThrownBy(() -> oper2.processResponse(outcome, PATH, response));
 325     }
 326
 327     @Test
 328     public void testPostProcessResponse() {
 329         assertThatCode(() -> oper.postProcessResponse(outcome, PATH, null, null)).doesNotThrowAnyException();
 330     }
 331
 332     @Test
 333     public void testIsSuccess() {
 334         when(response.getStatus()).thenReturn(200);
 335         assertTrue(oper.isSuccess(response, null));
 336
 337         when(response.getStatus()).thenReturn(555);
 338         assertFalse(oper.isSuccess(response, null));
 339     }
 340
 341     /**
 342      * Tests a GET.
 343      */
 344     @Test
 345     public void testGet() throws Exception {
 346         // use a real client
 347         initRealConfig(HTTP_CLIENT);
 348
 349         MyGetOperation<MyResponse> oper2 = new MyGetOperation<>(MyResponse.class);
 350
 351         OperationOutcome outcome = runOperation(oper2);
 352         assertNotNull(outcome);
 353         assertEquals(1, nget);
 354         assertEquals(OperationResult.SUCCESS, outcome.getResult());
 355         assertTrue(outcome.getResponse() instanceof MyResponse);
 356     }
 357
 358     /**
 359      * Tests a DELETE.
 360      */
 361     @Test
 362     public void testDelete() throws Exception {
 363         // use a real client
 364         initRealConfig(HTTP_CLIENT);
 365
 366         MyDeleteOperation oper2 = new MyDeleteOperation();
 367
 368         OperationOutcome outcome = runOperation(oper2);
 369         assertNotNull(outcome);
 370         assertEquals(1, ndelete);
 371         assertEquals(OperationResult.SUCCESS, outcome.getResult());
 372         assertTrue(outcome.getResponse() instanceof String);
 373     }
 374
 375     /**
 376      * Tests a POST.
 377      */
 378     @Test
 379     public void testPost() throws Exception {
 380         // use a real client
 381         initRealConfig(HTTP_CLIENT);
 382         MyPostOperation oper2 = new MyPostOperation();
 383
 384         OperationOutcome outcome = runOperation(oper2);
 385         assertNotNull(outcome);
 386         assertEquals(1, npost);
 387         assertEquals(OperationResult.SUCCESS, outcome.getResult());
 388         assertTrue(outcome.getResponse() instanceof MyResponse);
 389     }
 390
 391     /**
 392      * Tests a PUT.
 393      */
 394     @Test
 395     public void testPut() throws Exception {
 396         // use a real client
 397         initRealConfig(HTTP_CLIENT);
 398
 399         MyPutOperation oper2 = new MyPutOperation();
 400
 401         OperationOutcome outcome = runOperation(oper2);
 402         assertNotNull(outcome);
 403         assertEquals(1, nput);
 404         assertEquals(OperationResult.SUCCESS, outcome.getResult());
 405         assertTrue(outcome.getResponse() instanceof MyResponse);
 406     }
 407
 408     @Test
 409     public void testMakeDecoder() {
 410         assertNotNull(oper.getCoder());
 411     }
 412
 413     /**
 414      * Gets server properties.
 415      *
 416      * @param name server name
 417      * @param port server port
 418      * @return server properties
 419      */
 420     private static Properties getServerProperties(String name, int port) {
 421         final Properties props = new Properties();
 422         props.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES, name);
 423
 424         final String svcpfx = PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + name;
 425
 426         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_REST_CLASSES_SUFFIX, Server.class.getName());
 427         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, "localhost");
 428         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX, String.valueOf(port));
 429         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, "true");
 430         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_SWAGGER_SUFFIX, "false");
 431
 432         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_SERIALIZATION_PROVIDER,
 433                         GsonMessageBodyHandler.class.getName());
 434         return props;
 435     }
 436
 437     /**
 438      * Initializes the configuration.
 439      *
 440      * @param clientName name of the client which it should use
 441      */
 442     private void initConfig(String clientName) {
 443         initConfig(clientName, clientFactory);
 444     }
 445
 446     /**
 447      * Initializes the configuration with a real client.
 448      *
 449      * @param clientName name of the client which it should use
 450      */
 451     private void initConfig(String clientName, HttpClientFactory factory) {
 452         HttpParams params = HttpParams.builder().clientName(clientName).path(PATH).timeoutSec(1).build();
 453         config = new HttpConfig(executor, params, factory);
 454     }
 455
 456     /**
 457      * Initializes the configuration with a real client.
 458      *
 459      * @param clientName name of the client which it should use
 460      */
 461     private void initRealConfig(String clientName) {
 462         initConfig(clientName, HttpClientFactoryInstance.getClientFactory());
 463     }
 464
 465     /**
 466      * Runs the operation.
 467      *
 468      * @param operator operator on which to start the operation
 469      * @return the outcome of the operation, or {@code null} if it does not complete in
 470      *         time
 471      */
 472     private <T> OperationOutcome runOperation(HttpOperation<T> operator)
 473                     throws InterruptedException, ExecutionException, TimeoutException {
 474
 475         CompletableFuture<OperationOutcome> future = operator.start();
 476
 477         return future.get(5, TimeUnit.SECONDS);
 478     }
 479
 480     @Getter
 481     @Setter
 482     public static class MyRequest {
 483         private String input = "some input";
 484     }
 485
 486     @Getter
 487     @Setter
 488     public static class MyResponse {
 489         private String output = "some output";
 490     }
 491
 492     private class MyGetOperation<T> extends HttpOperation<T> {
 493         public MyGetOperation(Class<T> responseClass) {
 494             super(HttpOperationTest.this.params, HttpOperationTest.this.config, responseClass, Collections.emptyList());
 495         }
 496
 497         @Override
 498         protected CompletableFuture<OperationOutcome> startOperationAsync(int attempt, OperationOutcome outcome) {
 499             Map<String, Object> headers = makeHeaders();
 500
 501             headers.put("Accept", MediaType.APPLICATION_JSON);
 502             String url = getUrl();
 503
 504             logMessage(EventType.OUT, CommInfrastructure.REST, url, null);
 505
 506             // @formatter:off
 507             return handleResponse(outcome, url,
 508                 callback -> getClient().get(callback, getPath(), headers));
 509             // @formatter:on
 510         }
 511     }
 512
 513     private class MyPostOperation extends HttpOperation<MyResponse> {
 514         public MyPostOperation() {
 515             super(HttpOperationTest.this.params, HttpOperationTest.this.config, MyResponse.class,
 516                             Collections.emptyList());
 517         }
 518
 519         @Override
 520         protected CompletableFuture<OperationOutcome> startOperationAsync(int attempt, OperationOutcome outcome) {
 521
 522             MyRequest request = new MyRequest();
 523
 524             Map<String, Object> headers = makeHeaders();
 525
 526             headers.put("Accept", MediaType.APPLICATION_JSON);
 527             String url = getUrl();
 528
 529             String strRequest = prettyPrint(request);
 530             logMessage(EventType.OUT, CommInfrastructure.REST, url, strRequest);
 531
 532             Entity<String> entity = Entity.entity(strRequest, MediaType.APPLICATION_JSON);
 533
 534             // @formatter:off
 535             return handleResponse(outcome, url,
 536                 callback -> getClient().post(callback, getPath(), entity, headers));
 537             // @formatter:on
 538         }
 539     }
 540
 541     private class MyPutOperation extends HttpOperation<MyResponse> {
 542         public MyPutOperation() {
 543             super(HttpOperationTest.this.params, HttpOperationTest.this.config, MyResponse.class,
 544                             Collections.emptyList());
 545         }
 546
 547         @Override
 548         protected CompletableFuture<OperationOutcome> startOperationAsync(int attempt, OperationOutcome outcome) {
 549
 550             MyRequest request = new MyRequest();
 551
 552             Map<String, Object> headers = makeHeaders();
 553
 554             headers.put("Accept", MediaType.APPLICATION_JSON);
 555             String url = getUrl();
 556
 557             String strRequest = prettyPrint(request);
 558             logMessage(EventType.OUT, CommInfrastructure.REST, url, strRequest);
 559
 560             Entity<String> entity = Entity.entity(strRequest, MediaType.APPLICATION_JSON);
 561
 562             // @formatter:off
 563             return handleResponse(outcome, url,
 564                 callback -> getClient().put(callback, getPath(), entity, headers));
 565             // @formatter:on
 566         }
 567     }
 568
 569     private class MyDeleteOperation extends HttpOperation<String> {
 570         public MyDeleteOperation() {
 571             super(HttpOperationTest.this.params, HttpOperationTest.this.config, String.class, Collections.emptyList());
 572         }
 573
 574         @Override
 575         protected CompletableFuture<OperationOutcome> startOperationAsync(int attempt, OperationOutcome outcome) {
 576             Map<String, Object> headers = makeHeaders();
 577
 578             headers.put("Accept", MediaType.APPLICATION_JSON);
 579             String url = getUrl();
 580
 581             logMessage(EventType.OUT, CommInfrastructure.REST, url, null);
 582
 583             // @formatter:off
 584             return handleResponse(outcome, url,
 585                 callback -> getClient().delete(callback, getPath(), headers));
 586             // @formatter:on
 587         }
 588     }
 589
 590     /**
 591      * Simulator.
 592      */
 593     @Path("/" + BASE_URI)
 594     @Produces(MEDIA_TYPE_APPLICATION_JSON)
 595     @Consumes(value = {MEDIA_TYPE_APPLICATION_JSON})
 596     public static class Server {
 597
 598         /**
 599          * Generates a response to a GET.
 600          *
 601          * @return resulting response
 602          */
 603         @GET
 604         @Path(PATH)
 605         public Response getRequest() {
 606             ++nget;
 607
 608             if (rejectRequest) {
 609                 return Response.status(Status.BAD_REQUEST).build();
 610
 611             } else {
 612                 return Response.status(Status.OK).entity(new MyResponse()).build();
 613             }
 614         }
 615
 616         /**
 617          * Generates a response to a POST.
 618          *
 619          * @param request incoming request
 620          * @return resulting response
 621          */
 622         @POST
 623         @Path(PATH)
 624         public Response postRequest(MyRequest request) {
 625             ++npost;
 626
 627             if (rejectRequest) {
 628                 return Response.status(Status.BAD_REQUEST).build();
 629
 630             } else {
 631                 return Response.status(Status.OK).entity(new MyResponse()).build();
 632             }
 633         }
 634
 635         /**
 636          * Generates a response to a PUT.
 637          *
 638          * @param request incoming request
 639          * @return resulting response
 640          */
 641         @PUT
 642         @Path(PATH)
 643         public Response putRequest(MyRequest request) {
 644             ++nput;
 645
 646             if (rejectRequest) {
 647                 return Response.status(Status.BAD_REQUEST).build();
 648
 649             } else {
 650                 return Response.status(Status.OK).entity(new MyResponse()).build();
 651             }
 652         }
 653
 654         /**
 655          * Generates a response to a DELETE.
 656          *
 657          * @return resulting response
 658          */
 659         @DELETE
 660         @Path(PATH)
 661         public Response deleteRequest() {
 662             ++ndelete;
 663
 664             if (rejectRequest) {
 665                 return Response.status(Status.BAD_REQUEST).build();
 666
 667             } else {
 668                 return Response.status(Status.OK).entity(new MyResponse()).build();
 669             }
 670         }
 671     }
 672 }