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174
test/unit/org/apache/cassandra/net/OutboundTcpConnectionTest.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package org.apache.cassandra.net; | ||
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| import java.net.InetAddress; | ||
| import java.net.UnknownHostException; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.concurrent.BlockingQueue; | ||
| import java.util.concurrent.LinkedBlockingQueue; | ||
| import java.util.concurrent.atomic.AtomicInteger; | ||
|
|
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| import org.junit.Before; | ||
| import org.junit.BeforeClass; | ||
| import org.junit.Test; | ||
|
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| import org.apache.cassandra.io.IVersionedSerializer; | ||
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| import static org.junit.Assert.assertEquals; | ||
| import static org.junit.Assert.assertNull; | ||
| import static org.junit.Assert.assertTrue; | ||
| import static org.mockito.ArgumentMatchers.anyCollection; | ||
| import static org.mockito.ArgumentMatchers.eq; | ||
| import static org.mockito.Mockito.doReturn; | ||
| import static org.mockito.Mockito.mock; | ||
| import static org.mockito.Mockito.spy; | ||
| import static org.mockito.Mockito.times; | ||
| import static org.mockito.Mockito.verify; | ||
|
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| public class OutboundTcpConnectionTest | ||
| { | ||
| private OutboundTcpConnection connection; | ||
| private static OutboundTcpConnectionPool pool; | ||
| private static final InetAddress TARGET = mock(InetAddress.class); | ||
| private static final OutboundTcpConnection.QueuedMessage QM1 = new OutboundTcpConnection.QueuedMessage(new MessageOut<>(MessagingService.Verb.MUTATION), 1); | ||
| private static final OutboundTcpConnection.QueuedMessage QM2 = new OutboundTcpConnection.QueuedMessage(new MessageOut<>(MessagingService.Verb.MUTATION), 2); | ||
| private static final OutboundTcpConnection.QueuedMessage QM3 = new OutboundTcpConnection.QueuedMessage(new MessageOut<>(MessagingService.Verb.MUTATION), 3); | ||
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| @BeforeClass | ||
| public static void beforeClass() throws UnknownHostException | ||
| { | ||
| pool = mock(OutboundTcpConnectionPool.class); | ||
| doReturn(InetAddress.getLocalHost()).when(pool).endPoint(); | ||
| } | ||
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| @Before | ||
| public void before() { | ||
| connection = spy(new OutboundTcpConnection(pool, "test")); | ||
| MessagingService.instance().clearCallbacksUnsafe(); | ||
| } | ||
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| @Test | ||
| public void invokeFailureCallback_ignoresNonFailureCallbacks() { | ||
| TestCallback cb = new TestCallback(); | ||
| CallbackInfo nonFailureCallback = new CallbackInfo(TARGET, cb, mock(IVersionedSerializer.class), false); | ||
| MessagingService.instance().setCallbackForTests(QM1.id, nonFailureCallback); | ||
| connection.invokeFailureCallback(QM1); | ||
| assertEquals(0, cb.responses.get()); | ||
| } | ||
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| @Test | ||
| public void invokeFailureCallback_handlesExpiredCallback() { | ||
| assertNull(MessagingService.instance().getRegisteredCallback(QM1.id)); | ||
| connection.invokeFailureCallback(QM1); | ||
| } | ||
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| @Test | ||
| public void invokeFailureCallback_runsCallback() { | ||
| TestFailureCallback cb = registerFailureCallback(QM1); | ||
| connection.invokeFailureCallback(QM1); | ||
| assertEquals(0, cb.responses.get()); | ||
| assertEquals(1, cb.failures.get()); | ||
| assertNull(MessagingService.instance().getRegisteredCallback(QM1.id)); | ||
| } | ||
|
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| @Test | ||
| public void clearQueueWithFailureCallback_handlesInProgressDrainedList() throws InterruptedException | ||
| { | ||
| List<OutboundTcpConnection.QueuedMessage> drained = new ArrayList<>(2); | ||
| drained.add(QM1); | ||
| drained.add(QM2); | ||
| BlockingQueue<OutboundTcpConnection.QueuedMessage> backlog = new LinkedBlockingQueue<>(); | ||
| backlog.put(QM3); | ||
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| TestFailureCallback cb1 = registerFailureCallback(QM1); | ||
| TestFailureCallback cb2 = registerFailureCallback(QM2); | ||
| TestFailureCallback cb3 = registerFailureCallback(QM3); | ||
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| connection.clearQueueWithFailureCallback(1, drained, 2, backlog); | ||
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| assertEquals(0, cb1.failures.get()); | ||
| assertEquals(1, cb2.failures.get()); | ||
| assertEquals(1, cb3.failures.get()); | ||
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| assertTrue(drained.isEmpty()); | ||
| assertTrue(backlog.isEmpty()); | ||
| } | ||
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| @Test | ||
| public void clearQueueWithFailureCallback_clearsLargeBacklog() throws InterruptedException | ||
| { | ||
| List<OutboundTcpConnection.QueuedMessage> drained = new ArrayList<>(2); | ||
| BlockingQueue<OutboundTcpConnection.QueuedMessage> backlog = spy(new LinkedBlockingQueue<>()); | ||
| backlog.put(QM1); | ||
| backlog.put(QM2); | ||
| backlog.put(QM3); | ||
| backlog.put(QM3); | ||
| backlog.put(QM3); | ||
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| TestFailureCallback cb1 = registerFailureCallback(QM1); | ||
| TestFailureCallback cb2 = registerFailureCallback(QM2); | ||
| TestFailureCallback cb3 = registerFailureCallback(QM3); | ||
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| connection.clearQueueWithFailureCallback(0, drained, 2, backlog); | ||
| // With enough elements remaining, drain the buffer size | ||
| verify(backlog, times(2)).drainTo(anyCollection(), eq(2)); | ||
| // Last call, don't take more off the backlog than needed from when we first called clearQueueWithFailureCallback | ||
| verify(backlog, times(1)).drainTo(anyCollection(), eq(1)); | ||
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| assertEquals(1, cb1.failures.get()); | ||
| assertEquals(1, cb2.failures.get()); | ||
| assertEquals(1, cb3.failures.get()); | ||
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| assertTrue(drained.isEmpty()); | ||
| assertTrue(backlog.isEmpty()); | ||
| } | ||
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| static class TestCallback<T> implements IAsyncCallback<T> | ||
| { | ||
| public final AtomicInteger responses = new AtomicInteger(0); | ||
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| public void response(MessageIn<T> _msg) | ||
| { | ||
| responses.incrementAndGet(); | ||
|
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| } | ||
|
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| public boolean isLatencyForSnitch() | ||
| { | ||
| return false; | ||
| } | ||
| } | ||
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| static class TestFailureCallback<T> extends TestCallback<T> implements IAsyncCallbackWithFailure<T> { | ||
| public final AtomicInteger failures = new AtomicInteger(0); | ||
|
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| public void onFailure(InetAddress from) | ||
| { | ||
| failures.incrementAndGet(); | ||
| } | ||
| } | ||
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| private TestFailureCallback registerFailureCallback(OutboundTcpConnection.QueuedMessage qm) { | ||
| TestFailureCallback cb = new TestFailureCallback(); | ||
| MessagingService.instance().setCallbackForTests(qm.id, new CallbackInfo(TARGET, cb, mock(IVersionedSerializer.class), true)); | ||
| return cb; | ||
| } | ||
| } |