Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 1 | /* |
Ray Milkey | 34c9590 | 2015-04-15 09:47:53 -0700 | [diff] [blame^] | 2 | * Copyright 2014-2015 Open Networking Laboratory |
Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 3 | * |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 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 |
Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 7 | * |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 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. |
Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 15 | */ |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 16 | package org.onlab.netty; |
| 17 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 18 | import io.netty.bootstrap.Bootstrap; |
| 19 | import io.netty.bootstrap.ServerBootstrap; |
| 20 | import io.netty.buffer.PooledByteBufAllocator; |
| 21 | import io.netty.channel.Channel; |
| 22 | import io.netty.channel.ChannelFuture; |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 23 | import io.netty.channel.ChannelFutureListener; |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 24 | import io.netty.channel.ChannelHandler; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 25 | import io.netty.channel.ChannelHandlerContext; |
| 26 | import io.netty.channel.ChannelInitializer; |
| 27 | import io.netty.channel.ChannelOption; |
| 28 | import io.netty.channel.EventLoopGroup; |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 29 | import io.netty.channel.ServerChannel; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 30 | import io.netty.channel.SimpleChannelInboundHandler; |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 31 | import io.netty.channel.epoll.EpollEventLoopGroup; |
| 32 | import io.netty.channel.epoll.EpollServerSocketChannel; |
| 33 | import io.netty.channel.epoll.EpollSocketChannel; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 34 | import io.netty.channel.nio.NioEventLoopGroup; |
| 35 | import io.netty.channel.socket.SocketChannel; |
| 36 | import io.netty.channel.socket.nio.NioServerSocketChannel; |
| 37 | import io.netty.channel.socket.nio.NioSocketChannel; |
| 38 | |
Madan Jampani | 348a9fe | 2014-11-09 01:37:51 -0800 | [diff] [blame] | 39 | import java.io.IOException; |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 40 | import java.net.InetAddress; |
Madan Jampani | 348a9fe | 2014-11-09 01:37:51 -0800 | [diff] [blame] | 41 | import java.net.UnknownHostException; |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 42 | import java.util.concurrent.CompletableFuture; |
Madan Jampani | 348a9fe | 2014-11-09 01:37:51 -0800 | [diff] [blame] | 43 | import java.util.concurrent.ConcurrentHashMap; |
| 44 | import java.util.concurrent.ConcurrentMap; |
Madan Jampani | ec5ae34 | 2015-04-13 15:43:10 -0700 | [diff] [blame] | 45 | import java.util.concurrent.Executor; |
Madan Jampani | 348a9fe | 2014-11-09 01:37:51 -0800 | [diff] [blame] | 46 | import java.util.concurrent.TimeUnit; |
| 47 | import java.util.concurrent.TimeoutException; |
| 48 | import java.util.concurrent.atomic.AtomicLong; |
| 49 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 50 | import org.apache.commons.pool.KeyedPoolableObjectFactory; |
| 51 | import org.apache.commons.pool.impl.GenericKeyedObjectPool; |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 52 | import org.onlab.packet.IpAddress; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 53 | import org.slf4j.Logger; |
| 54 | import org.slf4j.LoggerFactory; |
| 55 | |
| 56 | import com.google.common.cache.Cache; |
| 57 | import com.google.common.cache.CacheBuilder; |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 58 | import com.google.common.cache.RemovalListener; |
| 59 | import com.google.common.cache.RemovalNotification; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 60 | |
| 61 | /** |
| 62 | * A Netty based implementation of MessagingService. |
| 63 | */ |
| 64 | public class NettyMessagingService implements MessagingService { |
| 65 | |
| 66 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 67 | |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 68 | private final Endpoint localEp; |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 69 | private final ConcurrentMap<String, MessageHandler> handlers = new ConcurrentHashMap<>(); |
Madan Jampani | 24f9efb | 2014-10-24 18:56:23 -0700 | [diff] [blame] | 70 | private final AtomicLong messageIdGenerator = new AtomicLong(0); |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 71 | private final Cache<Long, CompletableFuture<byte[]>> responseFutures = CacheBuilder.newBuilder() |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 72 | .maximumSize(100000) |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 73 | .expireAfterWrite(10, TimeUnit.SECONDS) |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 74 | .removalListener(new RemovalListener<Long, CompletableFuture<byte[]>>() { |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 75 | @Override |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 76 | public void onRemoval(RemovalNotification<Long, CompletableFuture<byte[]>> entry) { |
Yuta HIGUCHI | c611d92 | 2015-02-10 16:07:38 -0800 | [diff] [blame] | 77 | if (entry.wasEvicted()) { |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 78 | entry.getValue().completeExceptionally(new TimeoutException("Timedout waiting for reply")); |
Yuta HIGUCHI | c611d92 | 2015-02-10 16:07:38 -0800 | [diff] [blame] | 79 | } |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 80 | } |
| 81 | }) |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 82 | .build(); |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 83 | |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 84 | private final GenericKeyedObjectPool<Endpoint, Channel> channels |
| 85 | = new GenericKeyedObjectPool<Endpoint, Channel>(new OnosCommunicationChannelFactory()); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 86 | |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 87 | private EventLoopGroup serverGroup; |
| 88 | private EventLoopGroup clientGroup; |
| 89 | private Class<? extends ServerChannel> serverChannelClass; |
| 90 | private Class<? extends Channel> clientChannelClass; |
| 91 | |
Madan Jampani | 5e83f33 | 2014-10-20 15:35:09 -0700 | [diff] [blame] | 92 | private void initEventLoopGroup() { |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 93 | // try Epoll first and if that does work, use nio. |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 94 | try { |
Madan Jampani | 99e9fe2 | 2014-10-21 13:47:12 -0700 | [diff] [blame] | 95 | clientGroup = new EpollEventLoopGroup(); |
| 96 | serverGroup = new EpollEventLoopGroup(); |
| 97 | serverChannelClass = EpollServerSocketChannel.class; |
| 98 | clientChannelClass = EpollSocketChannel.class; |
| 99 | return; |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 100 | } catch (Throwable t) { |
Madan Jampani | cfbc054 | 2014-10-24 20:38:07 -0700 | [diff] [blame] | 101 | log.warn("Failed to initialize native (epoll) transport. Reason: {}. Proceeding with nio.", t.getMessage()); |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 102 | } |
| 103 | clientGroup = new NioEventLoopGroup(); |
| 104 | serverGroup = new NioEventLoopGroup(); |
| 105 | serverChannelClass = NioServerSocketChannel.class; |
| 106 | clientChannelClass = NioSocketChannel.class; |
Madan Jampani | 5e83f33 | 2014-10-20 15:35:09 -0700 | [diff] [blame] | 107 | } |
| 108 | |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 109 | public NettyMessagingService(IpAddress ip, int port) { |
Madan Jampani | 8710093 | 2014-10-21 16:46:12 -0700 | [diff] [blame] | 110 | localEp = new Endpoint(ip, port); |
| 111 | } |
| 112 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 113 | public NettyMessagingService() { |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 114 | this(8080); |
| 115 | } |
| 116 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 117 | public NettyMessagingService(int port) { |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 118 | try { |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 119 | localEp = new Endpoint(IpAddress.valueOf(InetAddress.getLocalHost()), port); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 120 | } catch (UnknownHostException e) { |
Ray Milkey | 3f0c97e | 2014-12-08 14:53:30 -0800 | [diff] [blame] | 121 | // Cannot resolve the local host, something is very wrong. Bailing out. |
| 122 | throw new IllegalStateException("Cannot resolve local host", e); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 123 | } |
| 124 | } |
| 125 | |
Ray Milkey | 3f0c97e | 2014-12-08 14:53:30 -0800 | [diff] [blame] | 126 | public void activate() throws InterruptedException { |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 127 | channels.setTestOnBorrow(true); |
| 128 | channels.setTestOnReturn(true); |
Madan Jampani | 5e83f33 | 2014-10-20 15:35:09 -0700 | [diff] [blame] | 129 | initEventLoopGroup(); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 130 | startAcceptingConnections(); |
| 131 | } |
| 132 | |
| 133 | public void deactivate() throws Exception { |
| 134 | channels.close(); |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 135 | serverGroup.shutdownGracefully(); |
| 136 | clientGroup.shutdownGracefully(); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 137 | } |
| 138 | |
Madan Jampani | 8710093 | 2014-10-21 16:46:12 -0700 | [diff] [blame] | 139 | /** |
| 140 | * Returns the local endpoint for this instance. |
| 141 | * @return local end point. |
| 142 | */ |
| 143 | public Endpoint localEp() { |
| 144 | return localEp; |
| 145 | } |
| 146 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 147 | @Override |
Madan Jampani | 53e44e6 | 2014-10-07 12:39:51 -0700 | [diff] [blame] | 148 | public void sendAsync(Endpoint ep, String type, byte[] payload) throws IOException { |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 149 | InternalMessage message = new InternalMessage.Builder(this) |
Madan Jampani | 24f9efb | 2014-10-24 18:56:23 -0700 | [diff] [blame] | 150 | .withId(messageIdGenerator.incrementAndGet()) |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 151 | .withSender(localEp) |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 152 | .withType(type) |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 153 | .withPayload(payload) |
| 154 | .build(); |
| 155 | sendAsync(ep, message); |
| 156 | } |
| 157 | |
| 158 | protected void sendAsync(Endpoint ep, InternalMessage message) throws IOException { |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 159 | if (ep.equals(localEp)) { |
| 160 | dispatchLocally(message); |
| 161 | return; |
| 162 | } |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 163 | Channel channel = null; |
| 164 | try { |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 165 | try { |
| 166 | channel = channels.borrowObject(ep); |
| 167 | channel.eventLoop().execute(new WriteTask(channel, message)); |
| 168 | } finally { |
| 169 | channels.returnObject(ep, channel); |
| 170 | } |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 171 | } catch (IOException e) { |
| 172 | throw e; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 173 | } catch (Exception e) { |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 174 | throw new IOException(e); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 175 | } |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 176 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 177 | } |
| 178 | |
| 179 | @Override |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 180 | public CompletableFuture<byte[]> sendAndReceive(Endpoint ep, String type, byte[] payload) { |
| 181 | CompletableFuture<byte[]> response = new CompletableFuture<>(); |
Madan Jampani | 24f9efb | 2014-10-24 18:56:23 -0700 | [diff] [blame] | 182 | Long messageId = messageIdGenerator.incrementAndGet(); |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 183 | responseFutures.put(messageId, response); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 184 | InternalMessage message = new InternalMessage.Builder(this) |
| 185 | .withId(messageId) |
| 186 | .withSender(localEp) |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 187 | .withType(type) |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 188 | .withPayload(payload) |
| 189 | .build(); |
Madan Jampani | 15cd0b8 | 2014-10-28 08:40:23 -0700 | [diff] [blame] | 190 | try { |
| 191 | sendAsync(ep, message); |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 192 | } catch (Exception e) { |
Madan Jampani | 15cd0b8 | 2014-10-28 08:40:23 -0700 | [diff] [blame] | 193 | responseFutures.invalidate(messageId); |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 194 | response.completeExceptionally(e); |
Madan Jampani | 15cd0b8 | 2014-10-28 08:40:23 -0700 | [diff] [blame] | 195 | } |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 196 | return response; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 197 | } |
| 198 | |
| 199 | @Override |
| 200 | public void registerHandler(String type, MessageHandler handler) { |
Madan Jampani | cd48bfd | 2015-03-25 18:06:22 -0700 | [diff] [blame] | 201 | handlers.put(type, handler); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 202 | } |
| 203 | |
Yuta HIGUCHI | e5ca93b | 2014-10-23 09:49:00 -0700 | [diff] [blame] | 204 | @Override |
Madan Jampani | ec5ae34 | 2015-04-13 15:43:10 -0700 | [diff] [blame] | 205 | public void registerHandler(String type, MessageHandler handler, Executor executor) { |
Madan Jampani | cd48bfd | 2015-03-25 18:06:22 -0700 | [diff] [blame] | 206 | handlers.put(type, new MessageHandler() { |
Madan Jampani | 2af244a | 2015-02-22 13:12:01 -0800 | [diff] [blame] | 207 | @Override |
| 208 | public void handle(Message message) throws IOException { |
Madan Jampani | ec5ae34 | 2015-04-13 15:43:10 -0700 | [diff] [blame] | 209 | executor.execute(() -> { |
Madan Jampani | 2af244a | 2015-02-22 13:12:01 -0800 | [diff] [blame] | 210 | try { |
| 211 | handler.handle(message); |
| 212 | } catch (Exception e) { |
Madan Jampani | 52860be | 2015-02-27 12:52:37 -0800 | [diff] [blame] | 213 | log.debug("Failed to process message of type {}", type, e); |
Madan Jampani | 2af244a | 2015-02-22 13:12:01 -0800 | [diff] [blame] | 214 | } |
| 215 | }); |
| 216 | } |
| 217 | }); |
| 218 | } |
| 219 | |
| 220 | @Override |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 221 | public void unregisterHandler(String type) { |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 222 | handlers.remove(type); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 223 | } |
| 224 | |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 225 | private MessageHandler getMessageHandler(String type) { |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 226 | return handlers.get(type); |
| 227 | } |
| 228 | |
| 229 | private void startAcceptingConnections() throws InterruptedException { |
| 230 | ServerBootstrap b = new ServerBootstrap(); |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 231 | b.option(ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK, 32 * 1024); |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 232 | b.option(ChannelOption.WRITE_BUFFER_LOW_WATER_MARK, 8 * 1024); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 233 | b.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT); |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 234 | b.group(serverGroup, clientGroup) |
| 235 | .channel(serverChannelClass) |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 236 | .childHandler(new OnosCommunicationChannelInitializer()) |
| 237 | .option(ChannelOption.SO_BACKLOG, 128) |
| 238 | .childOption(ChannelOption.SO_KEEPALIVE, true); |
| 239 | |
| 240 | // Bind and start to accept incoming connections. |
Madan Jampani | 8710093 | 2014-10-21 16:46:12 -0700 | [diff] [blame] | 241 | b.bind(localEp.port()).sync(); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 242 | } |
| 243 | |
| 244 | private class OnosCommunicationChannelFactory |
| 245 | implements KeyedPoolableObjectFactory<Endpoint, Channel> { |
| 246 | |
| 247 | @Override |
| 248 | public void activateObject(Endpoint endpoint, Channel channel) |
| 249 | throws Exception { |
| 250 | } |
| 251 | |
| 252 | @Override |
| 253 | public void destroyObject(Endpoint ep, Channel channel) throws Exception { |
| 254 | channel.close(); |
| 255 | } |
| 256 | |
| 257 | @Override |
| 258 | public Channel makeObject(Endpoint ep) throws Exception { |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 259 | Bootstrap bootstrap = new Bootstrap(); |
| 260 | bootstrap.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT); |
| 261 | bootstrap.option(ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK, 32 * 1024); |
| 262 | bootstrap.option(ChannelOption.WRITE_BUFFER_LOW_WATER_MARK, 8 * 1024); |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 263 | bootstrap.group(clientGroup); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 264 | // TODO: Make this faster: |
| 265 | // http://normanmaurer.me/presentations/2014-facebook-eng-netty/slides.html#37.0 |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 266 | bootstrap.channel(clientChannelClass); |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 267 | bootstrap.option(ChannelOption.SO_KEEPALIVE, true); |
| 268 | bootstrap.handler(new OnosCommunicationChannelInitializer()); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 269 | // Start the client. |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 270 | ChannelFuture f = bootstrap.connect(ep.host().toString(), ep.port()).sync(); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 271 | return f.channel(); |
| 272 | } |
| 273 | |
| 274 | @Override |
| 275 | public void passivateObject(Endpoint ep, Channel channel) |
| 276 | throws Exception { |
| 277 | } |
| 278 | |
| 279 | @Override |
| 280 | public boolean validateObject(Endpoint ep, Channel channel) { |
| 281 | return channel.isOpen(); |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | private class OnosCommunicationChannelInitializer extends ChannelInitializer<SocketChannel> { |
| 286 | |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 287 | private final ChannelHandler dispatcher = new InboundMessageDispatcher(); |
Madan Jampani | 53e44e6 | 2014-10-07 12:39:51 -0700 | [diff] [blame] | 288 | private final ChannelHandler encoder = new MessageEncoder(); |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 289 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 290 | @Override |
| 291 | protected void initChannel(SocketChannel channel) throws Exception { |
| 292 | channel.pipeline() |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 293 | .addLast("encoder", encoder) |
Madan Jampani | 53e44e6 | 2014-10-07 12:39:51 -0700 | [diff] [blame] | 294 | .addLast("decoder", new MessageDecoder(NettyMessagingService.this)) |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 295 | .addLast("handler", dispatcher); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 296 | } |
| 297 | } |
| 298 | |
Yuta HIGUCHI | e5ca93b | 2014-10-23 09:49:00 -0700 | [diff] [blame] | 299 | private static class WriteTask implements Runnable { |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 300 | |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 301 | private final InternalMessage message; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 302 | private final Channel channel; |
| 303 | |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 304 | public WriteTask(Channel channel, InternalMessage message) { |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 305 | this.channel = channel; |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 306 | this.message = message; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 307 | } |
| 308 | |
| 309 | @Override |
| 310 | public void run() { |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 311 | channel.writeAndFlush(message).addListener(ChannelFutureListener.CLOSE_ON_FAILURE); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 312 | } |
| 313 | } |
| 314 | |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 315 | @ChannelHandler.Sharable |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 316 | private class InboundMessageDispatcher extends SimpleChannelInboundHandler<InternalMessage> { |
| 317 | |
| 318 | @Override |
| 319 | protected void channelRead0(ChannelHandlerContext ctx, InternalMessage message) throws Exception { |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 320 | dispatchLocally(message); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 321 | } |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 322 | |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 323 | @Override |
| 324 | public void exceptionCaught(ChannelHandlerContext context, Throwable cause) { |
Madan Jampani | 29e5dfd | 2014-10-07 17:26:25 -0700 | [diff] [blame] | 325 | log.error("Exception inside channel handling pipeline.", cause); |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 326 | context.close(); |
| 327 | } |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 328 | } |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 329 | |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 330 | private void dispatchLocally(InternalMessage message) throws IOException { |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 331 | String type = message.type(); |
| 332 | if (InternalMessage.REPLY_MESSAGE_TYPE.equals(type)) { |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 333 | try { |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 334 | CompletableFuture<byte[]> futureResponse = |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 335 | NettyMessagingService.this.responseFutures.getIfPresent(message.id()); |
| 336 | if (futureResponse != null) { |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 337 | futureResponse.complete(message.payload()); |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 338 | } else { |
| 339 | log.warn("Received a reply for message id:[{}]. " |
| 340 | + " from {}. But was unable to locate the" |
| 341 | + " request handle", message.id(), message.sender()); |
| 342 | } |
| 343 | } finally { |
| 344 | NettyMessagingService.this.responseFutures.invalidate(message.id()); |
| 345 | } |
| 346 | return; |
| 347 | } |
| 348 | MessageHandler handler = NettyMessagingService.this.getMessageHandler(type); |
| 349 | if (handler != null) { |
| 350 | handler.handle(message); |
| 351 | } else { |
| 352 | log.debug("No handler registered for {}", type); |
| 353 | } |
| 354 | } |
Ray Milkey | 34c9590 | 2015-04-15 09:47:53 -0700 | [diff] [blame^] | 355 | } |