Examples with FutureCallback com.linkedin.common.callback.FutureCallback used on opensource projects

Example 81 with FutureCallback

use of com.linkedin.common.callback.FutureCallback in project rest.li by linkedin.

the class TestHttpNettyClient method testFailBackoff.

@Test
public void testFailBackoff() throws Exception {
    final int WARM_UP = 10;
    final int N = 5;
    final int MAX_RATE_LIMITING_PERIOD = 500;
    final CountDownLatch warmUpLatch = new CountDownLatch(WARM_UP);
    final CountDownLatch latch = new CountDownLatch(N);
    final AtomicReference<Boolean> isShutdown = new AtomicReference<>(false);
    AsyncPool<Channel> testPool = new AsyncPoolImpl<>("test pool", new AsyncPool.Lifecycle<Channel>() {

        @Override
        public void create(Callback<Channel> callback) {
            if (warmUpLatch.getCount() > 0) {
                warmUpLatch.countDown();
            } else {
                latch.countDown();
            }
            callback.onError(new Throwable("Oops..."));
        }

        @Override
        public boolean validateGet(Channel obj) {
            return false;
        }

        @Override
        public boolean validatePut(Channel obj) {
            return false;
        }

        @Override
        public void destroy(Channel obj, boolean error, Callback<Channel> callback) {
        }

        @Override
        public PoolStats.LifecycleStats getStats() {
            return null;
        }
    }, 200, 30000, _scheduler, Integer.MAX_VALUE, AsyncPoolImpl.Strategy.MRU, 0, new ExponentialBackOffRateLimiter(0, MAX_RATE_LIMITING_PERIOD, Math.max(10, MAX_RATE_LIMITING_PERIOD / 32), _scheduler));
    HttpNettyClient client = new HttpNettyClient(address -> testPool, _scheduler, 500, 500, 1024 * 1024 * 2);
    final RestRequest r = new RestRequestBuilder(URI.create("http://localhost:8080/")).setMethod("GET").build();
    final ExecutorService executor = Executors.newSingleThreadExecutor();
    executor.execute(() -> {
        while (!isShutdown.get()) {
            try {
                FutureCallback<RestResponse> callback = new FutureCallback<>();
                client.restRequest(r, new RequestContext(), new HashMap<>(), new TransportCallbackAdapter<RestResponse>(callback));
                callback.get();
            } catch (Exception e) {
            // ignore
            }
        }
    });
    // First ensure a bunch fail to get the rate limiting going
    warmUpLatch.await(120, TimeUnit.SECONDS);
    // Now we should be rate limited
    long start = System.currentTimeMillis();
    System.err.println("Starting at " + start);
    long lowTolerance = N * MAX_RATE_LIMITING_PERIOD * 4 / 5;
    long highTolerance = N * MAX_RATE_LIMITING_PERIOD * 5 / 4;
    Assert.assertTrue(latch.await(highTolerance, TimeUnit.MILLISECONDS), "Should have finished within " + highTolerance + "ms");
    long elapsed = System.currentTimeMillis() - start;
    Assert.assertTrue(elapsed > lowTolerance, "Should have finished after " + lowTolerance + "ms (took " + elapsed + ")");
    // shutdown everything
    isShutdown.set(true);
    executor.shutdown();
}

Example 82 with FutureCallback

use of com.linkedin.common.callback.FutureCallback in project rest.li by linkedin.

the class TestHttpNettyStreamClient method testCancelStreamRequests.

@Test(dataProvider = "requestResponseParameters", groups = TestGroupNames.TESTNG_GROUP_KNOWN_ISSUE)
public void testCancelStreamRequests(AbstractNettyStreamClient client, String method, int requestSize, int responseSize, boolean isFullRequest) throws Exception {
    AtomicInteger succeeded = new AtomicInteger(0);
    AtomicInteger failed = new AtomicInteger(0);
    Server server = new HttpServerBuilder().responseSize(responseSize).build();
    try {
        server.start();
        CountDownLatch latch = new CountDownLatch(REQUEST_COUNT);
        for (int i = 0; i < REQUEST_COUNT; i++) {
            StreamRequest request = new StreamRequestBuilder(new URI(URL)).setMethod(method).setHeader(HttpHeaderNames.HOST.toString(), HOST_NAME.toString()).build(EntityStreams.newEntityStream(new ByteStringWriter(ByteString.copy(new byte[requestSize]))));
            RequestContext context = new RequestContext();
            context.putLocalAttr(R2Constants.IS_FULL_REQUEST, isFullRequest);
            client.streamRequest(request, context, new HashMap<>(), new TransportCallbackAdapter<>(new Callback<StreamResponse>() {

                @Override
                public void onSuccess(StreamResponse response) {
                    response.getEntityStream().setReader(new Reader() {

                        @Override
                        public void onDataAvailable(ByteString data) {
                        }

                        @Override
                        public void onDone() {
                            failed.incrementAndGet();
                            latch.countDown();
                        }

                        @Override
                        public void onError(Throwable e) {
                            failed.incrementAndGet();
                            latch.countDown();
                        }

                        @Override
                        public void onInit(ReadHandle rh) {
                            rh.cancel();
                            succeeded.incrementAndGet();
                            latch.countDown();
                        }
                    });
                }

                @Override
                public void onError(Throwable e) {
                    failed.incrementAndGet();
                    latch.countDown();
                }
            }));
        }
        if (!latch.await(30, TimeUnit.SECONDS)) {
            Assert.fail("Timeout waiting for responses. " + succeeded + " requests succeeded and " + failed + " requests failed out of total " + REQUEST_COUNT + " requests");
        }
        Assert.assertEquals(latch.getCount(), 0);
        Assert.assertEquals(failed.get(), 0);
        Assert.assertEquals(succeeded.get(), REQUEST_COUNT);
        FutureCallback<None> shutdownCallback = new FutureCallback<>();
        client.shutdown(shutdownCallback);
        shutdownCallback.get(30, TimeUnit.SECONDS);
    } finally {
        server.stop();
    }
}

Example 83 with FutureCallback

use of com.linkedin.common.callback.FutureCallback in project rest.li by linkedin.

the class TestHttpNettyStreamClient method testRequestContextAttributes.

@Test(dataProvider = "remoteClientAddressClients")
public void testRequestContextAttributes(AbstractNettyStreamClient client) throws InterruptedException, IOException, TimeoutException {
    RestRequest r = new RestRequestBuilder(URI.create("http://localhost")).build();
    FutureCallback<StreamResponse> cb = new FutureCallback<>();
    TransportCallback<StreamResponse> callback = new TransportCallbackAdapter<>(cb);
    RequestContext requestContext = new RequestContext();
    client.streamRequest(Messages.toStreamRequest(r), requestContext, new HashMap<>(), callback);
    final String actualRemoteAddress = (String) requestContext.getLocalAttr(R2Constants.REMOTE_SERVER_ADDR);
    final HttpProtocolVersion actualProtocolVersion = (HttpProtocolVersion) requestContext.getLocalAttr(R2Constants.HTTP_PROTOCOL_VERSION);
    Assert.assertTrue("127.0.0.1".equals(actualRemoteAddress) || "0:0:0:0:0:0:0:1".equals(actualRemoteAddress), "Actual remote client address is not expected. " + "The local attribute field must be IP address in string type" + actualRemoteAddress);
    if (client instanceof HttpNettyStreamClient) {
        Assert.assertEquals(actualProtocolVersion, HttpProtocolVersion.HTTP_1_1);
    } else if (client instanceof Http2NettyStreamClient) {
        Assert.assertEquals(actualProtocolVersion, HttpProtocolVersion.HTTP_2);
    } else {
        Assert.fail("Unexpected client instance type");
    }
}

Example 84 with FutureCallback

use of com.linkedin.common.callback.FutureCallback in project rest.li by linkedin.

the class TestHttpNettyStreamClient method testShutdown.

@Test(dataProvider = "shutdownClients")
public void testShutdown(AbstractNettyStreamClient client) throws Exception {
    FutureCallback<None> shutdownCallback = new FutureCallback<None>();
    client.shutdown(shutdownCallback);
    shutdownCallback.get(30, TimeUnit.SECONDS);
    // Now verify a new request will also fail
    RestRequest r = new RestRequestBuilder(URI.create("http://no.such.host.linkedin.com")).build();
    FutureCallback<StreamResponse> callback = new FutureCallback<StreamResponse>();
    client.streamRequest(Messages.toStreamRequest(r), new RequestContext(), new HashMap<String, String>(), new TransportCallbackAdapter<StreamResponse>(callback));
    try {
        callback.get(30, TimeUnit.SECONDS);
    } catch (ExecutionException e) {
    // Expected
    }
}

Example 85 with FutureCallback

use of com.linkedin.common.callback.FutureCallback in project rest.li by linkedin.

the class TestHttpNettyStreamClient method testHeaderSize.

public void testHeaderSize(AbstractNettyStreamClient client, int headerSize, int expectedResult) throws Exception {
    Server server = new HttpServerBuilder().headerSize(headerSize).build();
    try {
        server.start();
        RestRequest r = new RestRequestBuilder(new URI(URL)).build();
        FutureCallback<StreamResponse> cb = new FutureCallback<StreamResponse>();
        TransportCallback<StreamResponse> callback = new TransportCallbackAdapter<StreamResponse>(cb);
        client.streamRequest(Messages.toStreamRequest(r), new RequestContext(), new HashMap<String, String>(), callback);
        cb.get(300, TimeUnit.SECONDS);
        if (expectedResult == TOO_LARGE) {
            Assert.fail("Max header size exceeded, expected exception. ");
        }
    } catch (ExecutionException e) {
        if (expectedResult == RESPONSE_OK) {
            Assert.fail("Unexpected ExecutionException, header was <= max header size.", e);
        }
        if (client instanceof HttpNettyStreamClient) {
            verifyCauseChain(e, RemoteInvocationException.class, TooLongFrameException.class);
        } else if (client instanceof Http2NettyStreamClient) {
            verifyCauseChain(e, RemoteInvocationException.class, Http2Exception.class);
        } else {
            Assert.fail("Unrecognized client");
        }
    } finally {
        server.stop();
    }
}