| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.hadoop.hdds.server.events; |
| |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.UUID; |
| |
| import org.apache.hadoop.ozone.lease.LeaseManager; |
| |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * Test the basic functionality of event watcher. |
| */ |
| public class TestEventWatcher { |
| |
| private static final TypedEvent<UnderreplicatedEvent> WATCH_UNDER_REPLICATED = |
| new TypedEvent<>(UnderreplicatedEvent.class); |
| |
| private static final TypedEvent<UnderreplicatedEvent> UNDER_REPLICATED = |
| new TypedEvent<>(UnderreplicatedEvent.class); |
| |
| private static final TypedEvent<ReplicationCompletedEvent> |
| REPLICATION_COMPLETED = new TypedEvent<>(ReplicationCompletedEvent.class); |
| |
| LeaseManager<UUID> leaseManager; |
| |
| @Before |
| public void startLeaseManager() { |
| leaseManager = new LeaseManager<>(2000l); |
| leaseManager.start(); |
| } |
| |
| @After |
| public void stopLeaseManager() { |
| leaseManager.shutdown(); |
| } |
| |
| |
| @Test |
| public void testEventHandling() throws InterruptedException { |
| |
| EventQueue queue = new EventQueue(); |
| |
| EventWatcher<UnderreplicatedEvent, ReplicationCompletedEvent> |
| replicationWatcher = createEventWatcher(); |
| |
| EventHandlerStub<UnderreplicatedEvent> underReplicatedEvents = |
| new EventHandlerStub<>(); |
| |
| queue.addHandler(UNDER_REPLICATED, underReplicatedEvents); |
| |
| replicationWatcher.start(queue); |
| |
| UUID uuid1 = UUID.randomUUID(); |
| UUID uuid2 = UUID.randomUUID(); |
| |
| queue.fireEvent(WATCH_UNDER_REPLICATED, |
| new UnderreplicatedEvent(uuid1, "C1")); |
| |
| queue.fireEvent(WATCH_UNDER_REPLICATED, |
| new UnderreplicatedEvent(uuid2, "C2")); |
| |
| Assert.assertEquals(0, underReplicatedEvents.getReceivedEvents().size()); |
| |
| Thread.sleep(1000); |
| |
| queue.fireEvent(REPLICATION_COMPLETED, |
| new ReplicationCompletedEvent(uuid1, "C2", "D1")); |
| |
| Assert.assertEquals(0, underReplicatedEvents.getReceivedEvents().size()); |
| |
| Thread.sleep(1500); |
| |
| queue.processAll(1000L); |
| |
| Assert.assertEquals(1, underReplicatedEvents.getReceivedEvents().size()); |
| Assert.assertEquals(uuid2, |
| underReplicatedEvents.getReceivedEvents().get(0).UUID); |
| |
| } |
| |
| @Test |
| public void testInprogressFilter() throws InterruptedException { |
| |
| EventQueue queue = new EventQueue(); |
| |
| EventWatcher<UnderreplicatedEvent, ReplicationCompletedEvent> |
| replicationWatcher = createEventWatcher(); |
| |
| EventHandlerStub<UnderreplicatedEvent> underReplicatedEvents = |
| new EventHandlerStub<>(); |
| |
| queue.addHandler(UNDER_REPLICATED, underReplicatedEvents); |
| |
| replicationWatcher.start(queue); |
| |
| UnderreplicatedEvent event1 = |
| new UnderreplicatedEvent(UUID.randomUUID(), "C1"); |
| |
| queue.fireEvent(WATCH_UNDER_REPLICATED, event1); |
| |
| queue.fireEvent(WATCH_UNDER_REPLICATED, |
| new UnderreplicatedEvent(UUID.randomUUID(), "C2")); |
| |
| queue.fireEvent(WATCH_UNDER_REPLICATED, |
| new UnderreplicatedEvent(UUID.randomUUID(), "C1")); |
| |
| queue.processAll(1000L); |
| Thread.sleep(1000L); |
| List<UnderreplicatedEvent> c1todo = replicationWatcher |
| .getTimeoutEvents(e -> e.containerId.equalsIgnoreCase("C1")); |
| |
| Assert.assertEquals(2, c1todo.size()); |
| Assert.assertTrue(replicationWatcher.contains(event1)); |
| Thread.sleep(1500L); |
| |
| c1todo = replicationWatcher |
| .getTimeoutEvents(e -> e.containerId.equalsIgnoreCase("C1")); |
| Assert.assertEquals(0, c1todo.size()); |
| Assert.assertFalse(replicationWatcher.contains(event1)); |
| |
| |
| } |
| |
| private EventWatcher<UnderreplicatedEvent, ReplicationCompletedEvent> |
| createEventWatcher() { |
| return new EventWatcher<UnderreplicatedEvent, ReplicationCompletedEvent>( |
| WATCH_UNDER_REPLICATED, REPLICATION_COMPLETED, leaseManager) { |
| |
| @Override |
| void onTimeout(EventPublisher publisher, UnderreplicatedEvent payload) { |
| publisher.fireEvent(UNDER_REPLICATED, payload); |
| } |
| |
| @Override |
| void onFinished(EventPublisher publisher, UnderreplicatedEvent payload) { |
| //Good job. We did it. |
| } |
| }; |
| } |
| |
| private static class ReplicationCompletedEvent |
| implements IdentifiableEventPayload { |
| |
| private final UUID UUID; |
| |
| private final String containerId; |
| |
| private final String datanodeId; |
| |
| public ReplicationCompletedEvent(UUID UUID, String containerId, |
| String datanodeId) { |
| this.UUID = UUID; |
| this.containerId = containerId; |
| this.datanodeId = datanodeId; |
| } |
| |
| public UUID getUUID() { |
| return UUID; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| ReplicationCompletedEvent that = (ReplicationCompletedEvent) o; |
| return Objects.equals(containerId, that.containerId) && Objects |
| .equals(datanodeId, that.datanodeId); |
| } |
| |
| @Override |
| public int hashCode() { |
| |
| return Objects.hash(containerId, datanodeId); |
| } |
| } |
| |
| private static class UnderreplicatedEvent |
| |
| implements IdentifiableEventPayload { |
| |
| private final UUID UUID; |
| |
| private final String containerId; |
| |
| public UnderreplicatedEvent(UUID UUID, String containerId) { |
| this.containerId = containerId; |
| this.UUID = UUID; |
| } |
| |
| public UUID getUUID() { |
| return UUID; |
| } |
| } |
| |
| } |