Jordan Halterman | b8cace7 | 2018-07-02 17:39:21 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.cluster.impl; |
| 17 | |
Jordan Halterman | 4330078 | 2019-05-21 11:27:50 -0700 | [diff] [blame] | 18 | import java.time.Duration; |
Jordan Halterman | b8cace7 | 2018-07-02 17:39:21 -0700 | [diff] [blame] | 19 | import java.util.Map; |
| 20 | import java.util.Set; |
| 21 | import java.util.concurrent.CompletableFuture; |
| 22 | import java.util.concurrent.Executor; |
| 23 | import java.util.concurrent.ExecutorService; |
| 24 | import java.util.function.Consumer; |
| 25 | import java.util.function.Function; |
| 26 | |
| 27 | import com.google.common.collect.Maps; |
| 28 | import org.onlab.util.Tools; |
| 29 | import org.onosproject.cluster.NodeId; |
| 30 | import org.onosproject.store.cluster.messaging.ClusterCommunicationService; |
| 31 | import org.onosproject.store.cluster.messaging.ClusterMessageHandler; |
| 32 | import org.onosproject.store.cluster.messaging.MessageSubject; |
| 33 | import org.onosproject.store.cluster.messaging.MessagingException; |
| 34 | |
| 35 | /** |
| 36 | * Cluster communication service implementation used for testing. |
| 37 | */ |
| 38 | public class TestClusterCommunicationService implements ClusterCommunicationService { |
| 39 | private final NodeId localNodeId; |
| 40 | private final Map<NodeId, TestClusterCommunicationService> nodes; |
| 41 | private final Map<MessageSubject, Function<byte[], CompletableFuture<byte[]>>> subscribers = |
| 42 | Maps.newConcurrentMap(); |
| 43 | |
| 44 | public TestClusterCommunicationService(NodeId localNodeId, Map<NodeId, TestClusterCommunicationService> nodes) { |
| 45 | this.localNodeId = localNodeId; |
| 46 | this.nodes = nodes; |
| 47 | nodes.put(localNodeId, this); |
| 48 | } |
| 49 | |
| 50 | @Override |
| 51 | public <M> void broadcast(M message, MessageSubject subject, Function<M, byte[]> encoder) { |
| 52 | nodes.forEach((nodeId, node) -> { |
| 53 | if (!nodeId.equals(localNodeId)) { |
| 54 | node.handle(subject, encoder.apply(message)); |
| 55 | } |
| 56 | }); |
| 57 | } |
| 58 | |
| 59 | @Override |
| 60 | public <M> void broadcastIncludeSelf(M message, MessageSubject subject, Function<M, byte[]> encoder) { |
| 61 | nodes.values().forEach(node -> node.handle(subject, encoder.apply(message))); |
| 62 | } |
| 63 | |
| 64 | @Override |
| 65 | public <M> CompletableFuture<Void> unicast( |
| 66 | M message, MessageSubject subject, Function<M, byte[]> encoder, NodeId toNodeId) { |
| 67 | TestClusterCommunicationService node = nodes.get(toNodeId); |
| 68 | if (node != null) { |
| 69 | node.handle(subject, encoder.apply(message)); |
| 70 | } |
| 71 | return CompletableFuture.completedFuture(null); |
| 72 | } |
| 73 | |
| 74 | @Override |
| 75 | public <M> void multicast(M message, MessageSubject subject, Function<M, byte[]> encoder, Set<NodeId> nodeIds) { |
| 76 | nodes.entrySet().stream() |
| 77 | .filter(e -> nodeIds.contains(e.getKey())) |
| 78 | .forEach(e -> e.getValue().handle(subject, encoder.apply(message))); |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public <M, R> CompletableFuture<R> sendAndReceive( |
| 83 | M message, |
| 84 | MessageSubject subject, |
| 85 | Function<M, byte[]> encoder, |
| 86 | Function<byte[], R> decoder, |
Jordan Halterman | 4330078 | 2019-05-21 11:27:50 -0700 | [diff] [blame] | 87 | NodeId toNodeId, |
| 88 | Duration duration) { |
Jordan Halterman | b8cace7 | 2018-07-02 17:39:21 -0700 | [diff] [blame] | 89 | TestClusterCommunicationService node = nodes.get(toNodeId); |
| 90 | if (node == null) { |
| 91 | return Tools.exceptionalFuture(new MessagingException.NoRemoteHandler()); |
| 92 | } |
| 93 | return node.handle(subject, encoder.apply(message)).thenApply(decoder); |
| 94 | } |
| 95 | |
| 96 | private CompletableFuture<byte[]> handle(MessageSubject subject, byte[] message) { |
| 97 | Function<byte[], CompletableFuture<byte[]>> subscriber = subscribers.get(subject); |
| 98 | if (subscriber != null) { |
| 99 | return subscriber.apply(message); |
| 100 | } |
| 101 | return Tools.exceptionalFuture(new MessagingException.NoRemoteHandler()); |
| 102 | } |
| 103 | |
| 104 | private boolean isSubscriber(MessageSubject subject) { |
| 105 | return subscribers.containsKey(subject); |
| 106 | } |
| 107 | |
| 108 | @Override |
| 109 | public <M, R> void addSubscriber( |
| 110 | MessageSubject subject, |
| 111 | Function<byte[], M> decoder, |
| 112 | Function<M, R> handler, |
| 113 | Function<R, byte[]> encoder, |
| 114 | Executor executor) { |
| 115 | subscribers.put(subject, message -> { |
| 116 | CompletableFuture<byte[]> future = new CompletableFuture<>(); |
| 117 | executor.execute(() -> { |
| 118 | try { |
| 119 | future.complete(encoder.apply(handler.apply(decoder.apply(message)))); |
| 120 | } catch (Exception e) { |
| 121 | future.completeExceptionally(new MessagingException.RemoteHandlerFailure()); |
| 122 | } |
| 123 | }); |
| 124 | return future; |
| 125 | }); |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public <M, R> void addSubscriber( |
| 130 | MessageSubject subject, |
| 131 | Function<byte[], M> decoder, |
| 132 | Function<M, CompletableFuture<R>> handler, |
| 133 | Function<R, byte[]> encoder) { |
| 134 | subscribers.put(subject, message -> { |
| 135 | CompletableFuture<byte[]> future = new CompletableFuture<>(); |
| 136 | try { |
| 137 | handler.apply(decoder.apply(message)).whenComplete((result, error) -> { |
| 138 | if (error == null) { |
| 139 | future.complete(encoder.apply(result)); |
| 140 | } else { |
| 141 | future.completeExceptionally(new MessagingException.RemoteHandlerFailure()); |
| 142 | } |
| 143 | }); |
| 144 | } catch (Exception e) { |
| 145 | future.completeExceptionally(new MessagingException.RemoteHandlerFailure()); |
| 146 | } |
| 147 | return future; |
| 148 | }); |
| 149 | } |
| 150 | |
| 151 | @Override |
| 152 | public <M> void addSubscriber( |
| 153 | MessageSubject subject, |
| 154 | Function<byte[], M> decoder, |
| 155 | Consumer<M> handler, |
| 156 | Executor executor) { |
| 157 | subscribers.put(subject, message -> { |
| 158 | CompletableFuture<byte[]> future = new CompletableFuture<>(); |
| 159 | executor.execute(() -> { |
| 160 | try { |
| 161 | handler.accept(decoder.apply(message)); |
| 162 | future.complete(null); |
| 163 | } catch (Exception e) { |
| 164 | future.completeExceptionally(new MessagingException.RemoteHandlerFailure()); |
| 165 | } |
| 166 | }); |
| 167 | return future; |
| 168 | }); |
| 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public void removeSubscriber(MessageSubject subject) { |
| 173 | subscribers.remove(subject); |
| 174 | } |
| 175 | |
| 176 | @Override |
| 177 | public void addSubscriber(MessageSubject subject, ClusterMessageHandler subscriber, ExecutorService executor) { |
| 178 | throw new UnsupportedOperationException(); |
| 179 | } |
| 180 | } |