com.netflix.loadbalancer.reactive.ExecutionListener Java Examples

The following examples show how to use com.netflix.loadbalancer.reactive.ExecutionListener. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: SecuredTransportFactory.java    From thorntail with Apache License 2.0 6 votes vote down vote up 
@Override
public HttpClient<ByteBuf, ByteBuf> newHttpClient(final IClientConfig config) {
    final List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners = new ArrayList<>();
    listeners.add(createBearerHeaderAdder());
    final PipelineConfiguratorComposite<HttpClientResponse<ByteBuf>, HttpClientRequest<ByteBuf>> pipelineConfigurator = new PipelineConfiguratorComposite<HttpClientResponse<ByteBuf>,
            HttpClientRequest<ByteBuf>>(new HttpClientPipelineConfigurator<ByteBuf, ByteBuf>(),
                                        new HttpObjectAggregationConfigurator(maxChunkSize));
    final LoadBalancingHttpClient<ByteBuf, ByteBuf> client = LoadBalancingHttpClient.<ByteBuf, ByteBuf>builder()
            .withClientConfig(config)
            .withExecutorListeners(listeners)
            .withRetryHandler(getDefaultHttpRetryHandlerWithConfig(config))
            .withPipelineConfigurator(pipelineConfigurator)
            .withPoolCleanerScheduler(RibbonTransport.poolCleanerScheduler)
            .build();

    return client;
}
Example #2
Source File: SecuredTransportFactory.java    From ARCHIVE-wildfly-swarm with Apache License 2.0 6 votes vote down vote up 
@Override
public HttpClient<ByteBuf, ByteBuf> newHttpClient(final IClientConfig config) {
    final List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners = new ArrayList<>();
    listeners.add(createBearerHeaderAdder());
    final PipelineConfiguratorComposite<HttpClientResponse<ByteBuf>, HttpClientRequest<ByteBuf>> pipelineConfigurator = new PipelineConfiguratorComposite<HttpClientResponse<ByteBuf>, 
            HttpClientRequest<ByteBuf>>(new HttpClientPipelineConfigurator<ByteBuf, ByteBuf>(),
            new HttpObjectAggregationConfigurator(maxChunkSize));
    final LoadBalancingHttpClient<ByteBuf, ByteBuf> client = LoadBalancingHttpClient.<ByteBuf, ByteBuf>builder()
            .withClientConfig(config)
            .withExecutorListeners(listeners)
            .withRetryHandler(getDefaultHttpRetryHandlerWithConfig(config))
            .withPipelineConfigurator(pipelineConfigurator)
            .withPoolCleanerScheduler(RibbonTransport.poolCleanerScheduler)
            .build();

    return client;
}
Example #3
Source File: LoadBalancingHttpClient.java    From ribbon with Apache License 2.0 6 votes vote down vote up 
protected LoadBalancingHttpClient(Builder<I, O> builder) {
    super(builder.lb, builder.config, new RequestSpecificRetryHandler(true, true, builder.retryHandler, null), builder.pipelineConfigurator, builder.poolCleanerScheduler);
    requestIdHeaderName = getProperty(IClientConfigKey.Keys.RequestIdHeaderName, null, null);
    requestIdProvider = (requestIdHeaderName != null) 
                      ? new HttpRequestIdProvider(requestIdHeaderName, RxContexts.DEFAULT_CORRELATOR)
                      : null;
    this.listeners = new CopyOnWriteArrayList<ExecutionListener<HttpClientRequest<I>, HttpClientResponse<O>>>(builder.listeners);
    defaultCommandBuilder = LoadBalancerCommand.<HttpClientResponse<O>>builder()
            .withLoadBalancerContext(lbContext)
            .withListeners(this.listeners)
            .withClientConfig(builder.config)
            .withRetryHandler(builder.retryHandler)
            .build();
    this.responseToErrorPolicy = builder.responseToErrorPolicy;
    this.backoffStrategy = builder.backoffStrategy;
}
Example #4
Source File: ServiceAuthenticationServiceImplTest.java    From api-layer with Eclipse Public License 2.0 5 votes vote down vote up 
@Test
public void givenMissingJwt_whenCommandRequiredAuthentication_thenReject() throws Exception {
    try {
        testRequiredAuthentication(true, null);
        fail();
    } catch (ExecutionListener.AbortExecutionException aee) {
        assertTrue(aee.getMessage().contains("Invalid JWT token"));
    }
}
Example #5
Source File: ListenerTest.java    From ribbon with Apache License 2.0 5 votes vote down vote up 
@Test
public void testSuccessExecutionOnAbosoluteURI() throws IOException {
    MockWebServer server = new MockWebServer();
    String content = "OK";
    server.enqueue(new MockResponse().setResponseCode(200).setHeader("Content-type", "application/json")
            .setBody(content));
    server.play();

    IClientConfig config = DefaultClientConfigImpl.getClientConfigWithDefaultValues().withProperty(CommonClientConfigKey.ConnectTimeout, "2000")
            .withProperty(CommonClientConfigKey.MaxAutoRetries, 1)
            .withProperty(CommonClientConfigKey.MaxAutoRetriesNextServer, 1);
    HttpClientRequest<ByteBuf> request = HttpClientRequest.createGet("http://localhost:" + server.getPort() + "/testAsync/person");
    Server badServer = new Server("localhost:12345");
    Server goodServer = new Server("localhost:" + server.getPort());
    List<Server> servers = Lists.newArrayList(goodServer, badServer);

    BaseLoadBalancer lb = LoadBalancerBuilder.<Server>newBuilder()
            .withRule(new AvailabilityFilteringRule())
            .withPing(new DummyPing())
            .buildFixedServerListLoadBalancer(servers);
    IClientConfig overrideConfig = DefaultClientConfigImpl.getEmptyConfig().set(CommonClientConfigKey.ConnectTimeout, 500);
    TestExecutionListener<ByteBuf, ByteBuf> listener = new TestExecutionListener<ByteBuf, ByteBuf>(request, overrideConfig);
    List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners = Lists.<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>>newArrayList(listener);
    LoadBalancingHttpClient<ByteBuf, ByteBuf> client = RibbonTransport.newHttpClient(lb, config, new NettyHttpLoadBalancerErrorHandler(config), listeners);
    HttpClientResponse<ByteBuf> response = client.submit(request, null, overrideConfig).toBlocking().last();
    assertEquals(200, response.getStatus().code());
    assertEquals(1, listener.executionStartCounter.get());
    assertEquals(1, listener.startWithServerCounter.get());
    assertEquals(0, listener.exceptionWithServerCounter.get());
    assertEquals(0, listener.executionFailedCounter.get());
    assertEquals(1, listener.executionSuccessCounter.get());
    assertEquals(500, listener.getContext().getClientProperty(CommonClientConfigKey.ConnectTimeout).intValue());
    assertTrue(listener.isContextChecked());
    assertTrue(listener.isCheckExecutionInfo());
    assertSame(response, listener.getResponse());
}
Example #6
Source File: ListenerTest.java    From ribbon with Apache License 2.0 5 votes vote down vote up 
@Test
public void testFailedExecutionForAbsoluteURI() {
    IClientConfig config = DefaultClientConfigImpl
            .getClientConfigWithDefaultValues()
            .withProperty(CommonClientConfigKey.ConnectTimeout, "100")
            .withProperty(CommonClientConfigKey.MaxAutoRetries, 1)
            .withProperty(CommonClientConfigKey.MaxAutoRetriesNextServer, 1);
    HttpClientRequest<ByteBuf> request = HttpClientRequest.createGet("http://xyz.unknowhost.xyz/testAsync/person");
    Server badServer = new Server("localhost:12345");
    Server badServer2 = new Server("localhost:34567");
    List<Server> servers = Lists.newArrayList(badServer, badServer2);

    BaseLoadBalancer lb = LoadBalancerBuilder.<Server>newBuilder()
            .withRule(new AvailabilityFilteringRule())
            .withPing(new DummyPing())
            .buildFixedServerListLoadBalancer(servers);
    IClientConfig overrideConfig = DefaultClientConfigImpl.getEmptyConfig();
    TestExecutionListener<ByteBuf, ByteBuf> listener = new TestExecutionListener<ByteBuf, ByteBuf>(request, overrideConfig);
    List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners = Lists.<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>>newArrayList(listener);
    LoadBalancingHttpClient<ByteBuf, ByteBuf> client = RibbonTransport.newHttpClient(lb, config, new NettyHttpLoadBalancerErrorHandler(config), listeners);
    try {
        client.submit(request, null, overrideConfig).toBlocking().last();
        fail("Exception expected");
    } catch(Exception e) {
        assertNotNull(e);
    }
    assertEquals(1, listener.executionStartCounter.get());
    assertEquals(2, listener.startWithServerCounter.get());
    assertEquals(2, listener.exceptionWithServerCounter.get());
    assertEquals(1, listener.executionFailedCounter.get());
    assertTrue(listener.isContextChecked());
    assertTrue(listener.isCheckExecutionInfo());
    assertTrue(listener.getFinalThrowable() instanceof ClientException);
}
Example #7
Source File: ListenerTest.java    From ribbon with Apache License 2.0 5 votes vote down vote up 
@Test
public void testFailedExecution() {
    IClientConfig config = DefaultClientConfigImpl.getClientConfigWithDefaultValues()
            .withProperty(CommonClientConfigKey.ConnectTimeout, "100")
            .withProperty(CommonClientConfigKey.MaxAutoRetries, 1)
            .withProperty(CommonClientConfigKey.MaxAutoRetriesNextServer, 1);

    System.out.println(config);

    HttpClientRequest<ByteBuf> request = HttpClientRequest.createGet("/testAsync/person");
    Server badServer  = new Server("localhost:12345");
    Server badServer2 = new Server("localhost:34567");
    List<Server> servers = Lists.newArrayList(badServer, badServer2);

    BaseLoadBalancer lb = LoadBalancerBuilder.<Server>newBuilder()
            .withRule(new AvailabilityFilteringRule())
            .withPing(new DummyPing())
            .buildFixedServerListLoadBalancer(servers);
    
    IClientConfig overrideConfig = DefaultClientConfigImpl.getEmptyConfig();
    TestExecutionListener<ByteBuf, ByteBuf> listener = new TestExecutionListener<ByteBuf, ByteBuf>(request, overrideConfig);
    List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners = Lists.<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>>newArrayList(listener);
    LoadBalancingHttpClient<ByteBuf, ByteBuf> client = RibbonTransport.newHttpClient(lb, config, new NettyHttpLoadBalancerErrorHandler(config), listeners);
    try {
        client.submit(request, null, overrideConfig).toBlocking().last();
        fail("Exception expected");
    } catch(Exception e) {
        assertNotNull(e);
    }
    assertEquals(1, listener.executionStartCounter.get());
    assertEquals(4, listener.startWithServerCounter.get());
    assertEquals(4, listener.exceptionWithServerCounter.get());
    assertEquals(1, listener.executionFailedCounter.get());
    assertTrue(listener.isContextChecked());
    assertTrue(listener.isCheckExecutionInfo());
    assertNotNull(listener.getFinalThrowable());
    listener.getFinalThrowable().printStackTrace();
    assertTrue(listener.getFinalThrowable() instanceof ClientException);
    assertEquals(100, listener.getContext().getClientProperty(CommonClientConfigKey.ConnectTimeout).intValue());
}
Example #8
Source File: RibbonTransport.java    From ribbon with Apache License 2.0 5 votes vote down vote up 
public static <I, O> LoadBalancingHttpClient<I, O> newHttpClient(PipelineConfigurator<HttpClientResponse<O>, HttpClientRequest<I>> pipelineConfigurator,
                                                         ILoadBalancer loadBalancer, IClientConfig config, RetryHandler retryHandler,
                                                              List<ExecutionListener<HttpClientRequest<I>, HttpClientResponse<O>>> listeners) {
    return LoadBalancingHttpClient.<I, O>builder()
            .withLoadBalancer(loadBalancer)
            .withClientConfig(config)
            .withRetryHandler(retryHandler)
            .withPipelineConfigurator(pipelineConfigurator)
            .withPoolCleanerScheduler(poolCleanerScheduler)
            .withExecutorListeners(listeners)
            .build();
}
Example #9
Source File: RibbonTransport.java    From ribbon with Apache License 2.0 5 votes vote down vote up 
public static LoadBalancingHttpClient<ByteBuf, ByteBuf> newHttpClient(ILoadBalancer loadBalancer, IClientConfig config, RetryHandler retryHandler,
                                                              List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners) {
    return LoadBalancingHttpClient.<ByteBuf, ByteBuf>builder()
            .withLoadBalancer(loadBalancer)
            .withClientConfig(config)
            .withRetryHandler(retryHandler)
            .withPipelineConfigurator(DEFAULT_HTTP_PIPELINE_CONFIGURATOR)
            .withPoolCleanerScheduler(poolCleanerScheduler)
            .withExecutorListeners(listeners)
            .build();
}
Example #10
Source File: LoadBalancingHttpClient.java    From ribbon with Apache License 2.0 5 votes vote down vote up 
public LoadBalancingHttpClient<I, O> build() {
    if (retryHandler == null) {
        retryHandler = new NettyHttpLoadBalancerErrorHandler();
    }
    if (config == null) {
        config = DefaultClientConfigImpl.getClientConfigWithDefaultValues();
    }
    if (lb == null) {
        lb = LoadBalancerBuilder.newBuilder().withClientConfig(config).buildLoadBalancerFromConfigWithReflection();
    }
    if (listeners == null) {
        listeners = Collections.<ExecutionListener<HttpClientRequest<I>, HttpClientResponse<O>>>emptyList();
    }
    if (backoffStrategy == null) {
        backoffStrategy = new Func1<Integer, Integer>() {
            @Override
            public Integer call(Integer backoffCount) {
                int interval = config.getOrDefault(IClientConfigKey.Keys.BackoffInterval);
                if (backoffCount < 0) {
                    backoffCount = 0;
                }
                else if (backoffCount > 10) {   // Reasonable upper bound
                    backoffCount = 10;
                }
                return (int)Math.pow(2, backoffCount) * interval;
            }
        };
    }
    if (responseToErrorPolicy == null) {
        responseToErrorPolicy = new DefaultResponseToErrorPolicy<O>();
    }
    return build.call(this);
}
Example #11
Source File: ServiceAuthenticationServiceImplTest.java    From api-layer with Eclipse Public License 2.0 5 votes vote down vote up 
@Test
public void givenValidExpiredJwt_whenCommandRequiredAuthentication_thenCall() throws Exception {
    doThrow(new TokenExpireException("Token is expired."))
        .when(getUnProxy(authenticationService)).validateJwtToken("validJwt");

    try {
        testRequiredAuthentication(true, "validJwt");
        fail();
    } catch (ExecutionListener.AbortExecutionException aee) {
        assertTrue(aee.getMessage().contains("Invalid JWT token"));
    }
}
Example #12
Source File: ServiceAuthenticationServiceImplTest.java    From api-layer with Eclipse Public License 2.0 5 votes vote down vote up 
@Test
public void givenInvalidJwt_whenCommandRequiredAuthentication_thenReject() throws Exception {
    try {
        testRequiredAuthentication(true, "invalidJwt");
        fail();
    } catch (ExecutionListener.AbortExecutionException aee) {
        assertTrue(aee.getMessage().contains("Invalid JWT token"));
    }
}
Example #13
Source File: ServiceAuthenticationServiceImpl.java    From api-layer with Eclipse Public License 2.0 5 votes vote down vote up 
@Override
public void apply(InstanceInfo instanceInfo) {
    if (instanceInfo == null) throw new NullPointerException("Argument instanceInfo is required");

    final Authentication auth = getAuthentication(instanceInfo);
    final RequestContext requestContext = RequestContext.getCurrentContext();
    final HttpServletRequest request = requestContext.getRequest();

    AuthenticationCommand cmd = null;

    boolean rejected = false;
    try {
        final String jwtToken = getAuthenticationService().getJwtTokenFromRequest(request).orElse(null);
        cmd = getAuthenticationCommand(auth, jwtToken);

        // if authentication schema required valid JWT, check it
        if (cmd.isRequiredValidJwt()) {
            rejected = (jwtToken == null) || !authenticationService.validateJwtToken(jwtToken).isAuthenticated();
        }

    } catch (AuthenticationException ae) {
        rejected = true;
    }

    if (rejected) {
        throw new ExecutionListener.AbortExecutionException(INVALID_JWT_MESSAGE, new BadCredentialsException(INVALID_JWT_MESSAGE));
    }

    cmd.apply(null);
}
Example #14
Source File: LoadBalancingHttpClient.java    From ribbon with Apache License 2.0 4 votes vote down vote up 
public Builder<I, O> withExecutorListeners(List<ExecutionListener<HttpClientRequest<I>, HttpClientResponse<O>>> listeners) {
    this.listeners = listeners;
    return this;
}
Example #15
Source File: SecuredTransportFactory.java    From ARCHIVE-wildfly-swarm with Apache License 2.0 4 votes vote down vote up 
private ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>> createBearerHeaderAdder() {
    return new BearerHeaderAdder();
}
Example #16
Source File: SecuredTransportFactory.java    From thorntail with Apache License 2.0 4 votes vote down vote up 
private ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>> createBearerHeaderAdder() {
    return new BearerHeaderAdder();
}
Example #17
Source File: ListenerTest.java    From ribbon with Apache License 2.0 4 votes vote down vote up 
@Test
public void testSuccessExecution() throws IOException {
    MockWebServer server = new MockWebServer();
    String content = "OK";
    server.enqueue(new MockResponse()
            .setResponseCode(200)
            .setHeader("Content-type", "application/json")
            .setBody(content));
    server.play();

    IClientConfig config = DefaultClientConfigImpl
            .getClientConfigWithDefaultValues()
            .withProperty(CommonClientConfigKey.ConnectTimeout, "2000")
            .withProperty(CommonClientConfigKey.MaxAutoRetries, 1)
            .withProperty(CommonClientConfigKey.MaxAutoRetriesNextServer, 1);

    System.out.println(config);

    HttpClientRequest<ByteBuf> request = HttpClientRequest.createGet("/testAsync/person");
    Server badServer  = new Server("localhost:12345");
    Server goodServer = new Server("localhost:" + server.getPort());
    List<Server> servers = Lists.newArrayList(goodServer, badServer);

    BaseLoadBalancer lb = LoadBalancerBuilder.newBuilder()
            .withRule(new AvailabilityFilteringRule())
            .withPing(new DummyPing())
            .buildFixedServerListLoadBalancer(servers);

    IClientConfig overrideConfig = DefaultClientConfigImpl
            .getEmptyConfig()
            .set(CommonClientConfigKey.ConnectTimeout, 500);

    TestExecutionListener<ByteBuf, ByteBuf> listener = new TestExecutionListener<>(request, overrideConfig);
    List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners = Lists.newArrayList(listener);
    LoadBalancingHttpClient<ByteBuf, ByteBuf> client = RibbonTransport.newHttpClient(lb, config, new NettyHttpLoadBalancerErrorHandler(config), listeners);
    HttpClientResponse<ByteBuf> response = client.submit(request, null, overrideConfig).toBlocking().last();

    System.out.println(listener);

    assertEquals(200, response.getStatus().code());
    assertEquals(1, listener.executionStartCounter.get());
    assertEquals(3, listener.startWithServerCounter.get());
    assertEquals(2, listener.exceptionWithServerCounter.get());
    assertEquals(0, listener.executionFailedCounter.get());
    assertEquals(1, listener.executionSuccessCounter.get());
    assertEquals(500, listener.getContext().getClientProperty(CommonClientConfigKey.ConnectTimeout).intValue());
    assertTrue(listener.isContextChecked());
    assertTrue(listener.isCheckExecutionInfo());
    assertSame(response, listener.getResponse());
}
Example #18
Source File: ListenerTest.java    From ribbon with Apache License 2.0 4 votes vote down vote up 
@Test
public void testAbortedExecution() {
    IClientConfig config = DefaultClientConfigImpl.getClientConfigWithDefaultValues().withProperty(CommonClientConfigKey.ConnectTimeout, "100")
            .withProperty(CommonClientConfigKey.MaxAutoRetries, 1)
            .withProperty(CommonClientConfigKey.MaxAutoRetriesNextServer, 1);
    HttpClientRequest<ByteBuf> request = HttpClientRequest.createGet("/testAsync/person");
    Server badServer = new Server("localhost:12345");
    Server badServer2 = new Server("localhost:34567");
    List<Server> servers = Lists.newArrayList(badServer, badServer2);
    BaseLoadBalancer lb = LoadBalancerBuilder.<Server>newBuilder()
            .withRule(new AvailabilityFilteringRule())
            .withPing(new DummyPing())
            .buildFixedServerListLoadBalancer(servers);
    IClientConfig overrideConfig = DefaultClientConfigImpl.getEmptyConfig();
    TestExecutionListener listener = new TestExecutionListener(request, overrideConfig) {
        @Override
        public void onExecutionStart(ExecutionContext context) {
            throw new AbortExecutionException("exit now");
        }
    };
    List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners = Lists.<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>>newArrayList(listener);
    LoadBalancingHttpClient<ByteBuf, ByteBuf> client = RibbonTransport.newHttpClient(lb, config, new NettyHttpLoadBalancerErrorHandler(config), listeners);
    final CountDownLatch latch = new CountDownLatch(1);
    final AtomicReference<Throwable> ref = new AtomicReference<Throwable>();
    client.submit(request, null, overrideConfig).subscribe(new Action1<HttpClientResponse<ByteBuf>>() {
        @Override
        public void call(HttpClientResponse<ByteBuf> byteBufHttpClientResponse) {
        }
    }, new Action1<Throwable>() {
        @Override
        public void call(Throwable throwable) {
            ref.set(throwable);
            latch.countDown();
        }
    });
    try {
        latch.await(500, TimeUnit.MILLISECONDS);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    assertTrue(ref.get() instanceof AbortExecutionException);
}
Example #19
Source File: ListenerTest.java    From ribbon with Apache License 2.0 4 votes vote down vote up 
@Test
public void testAbortedExecutionOnServer() {
    IClientConfig config = DefaultClientConfigImpl.getClientConfigWithDefaultValues().withProperty(CommonClientConfigKey.ConnectTimeout, "100")
            .withProperty(CommonClientConfigKey.MaxAutoRetries, 1)
            .withProperty(CommonClientConfigKey.MaxAutoRetriesNextServer, 1);
    HttpClientRequest<ByteBuf> request = HttpClientRequest.createGet("/testAsync/person");
    Server badServer = new Server("localhost:12345");
    Server badServer2 = new Server("localhost:34567");
    List<Server> servers = Lists.newArrayList(badServer, badServer2);
    BaseLoadBalancer lb = LoadBalancerBuilder.<Server>newBuilder()
            .withRule(new AvailabilityFilteringRule())
            .withPing(new DummyPing())
            .buildFixedServerListLoadBalancer(servers);
    IClientConfig overrideConfig = DefaultClientConfigImpl.getEmptyConfig();
    TestExecutionListener listener = new TestExecutionListener(request, overrideConfig) {
        @Override
        public void onStartWithServer(ExecutionContext context, ExecutionInfo info) {
            throw new AbortExecutionException("exit now");
        }
    };
    List<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>> listeners = Lists.<ExecutionListener<HttpClientRequest<ByteBuf>, HttpClientResponse<ByteBuf>>>newArrayList(listener);
    LoadBalancingHttpClient<ByteBuf, ByteBuf> client = RibbonTransport.newHttpClient(lb, config, new NettyHttpLoadBalancerErrorHandler(config), listeners);
    final CountDownLatch latch = new CountDownLatch(1);
    final AtomicReference<Throwable> ref = new AtomicReference<Throwable>();
    client.submit(request, null, overrideConfig).subscribe(new Action1<HttpClientResponse<ByteBuf>>() {
        @Override
        public void call(HttpClientResponse<ByteBuf> byteBufHttpClientResponse) {
        }
    }, new Action1<Throwable>() {
        @Override
        public void call(Throwable throwable) {
            ref.set(throwable);
            latch.countDown();
        }
    });
    try {
        latch.await(500, TimeUnit.MILLISECONDS);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    assertTrue(ref.get() instanceof AbortExecutionException);
}