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 | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 40 | import java.util.Map; |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 41 | import java.util.concurrent.CompletableFuture; |
Madan Jampani | 348a9fe | 2014-11-09 01:37:51 -0800 | [diff] [blame] | 42 | import java.util.concurrent.ConcurrentHashMap; |
Madan Jampani | ec5ae34 | 2015-04-13 15:43:10 -0700 | [diff] [blame] | 43 | import java.util.concurrent.Executor; |
Thomas Vachuska | fc52fec | 2015-05-18 19:13:56 -0700 | [diff] [blame] | 44 | import java.util.concurrent.RejectedExecutionException; |
Madan Jampani | 348a9fe | 2014-11-09 01:37:51 -0800 | [diff] [blame] | 45 | import java.util.concurrent.TimeUnit; |
| 46 | import java.util.concurrent.TimeoutException; |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 47 | import java.util.concurrent.atomic.AtomicBoolean; |
Madan Jampani | 348a9fe | 2014-11-09 01:37:51 -0800 | [diff] [blame] | 48 | import java.util.concurrent.atomic.AtomicLong; |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 49 | import java.util.function.Consumer; |
| 50 | import java.util.function.Function; |
Madan Jampani | 348a9fe | 2014-11-09 01:37:51 -0800 | [diff] [blame] | 51 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 52 | import org.apache.commons.pool.KeyedPoolableObjectFactory; |
| 53 | import org.apache.commons.pool.impl.GenericKeyedObjectPool; |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 54 | import org.onosproject.store.cluster.messaging.Endpoint; |
| 55 | import org.onosproject.store.cluster.messaging.MessagingService; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 56 | import org.slf4j.Logger; |
| 57 | import org.slf4j.LoggerFactory; |
| 58 | |
| 59 | import com.google.common.cache.Cache; |
| 60 | import com.google.common.cache.CacheBuilder; |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 61 | import com.google.common.cache.RemovalListener; |
| 62 | import com.google.common.cache.RemovalNotification; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 63 | |
| 64 | /** |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 65 | * Implementation of MessagingService based on <a href="http://netty.io/">Netty</a> framework. |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 66 | */ |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 67 | public class NettyMessaging implements MessagingService { |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 68 | |
| 69 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 70 | |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 71 | private static final String REPLY_MESSAGE_TYPE = "NETTY_MESSAGING_REQUEST_REPLY"; |
| 72 | |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 73 | private Endpoint localEp; |
| 74 | private final AtomicBoolean started = new AtomicBoolean(false); |
| 75 | private final Map<String, Consumer<InternalMessage>> handlers = new ConcurrentHashMap<>(); |
Madan Jampani | 24f9efb | 2014-10-24 18:56:23 -0700 | [diff] [blame] | 76 | private final AtomicLong messageIdGenerator = new AtomicLong(0); |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 77 | private final Cache<Long, CompletableFuture<byte[]>> responseFutures = CacheBuilder.newBuilder() |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 78 | .expireAfterWrite(10, TimeUnit.SECONDS) |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 79 | .removalListener(new RemovalListener<Long, CompletableFuture<byte[]>>() { |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 80 | @Override |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 81 | public void onRemoval(RemovalNotification<Long, CompletableFuture<byte[]>> entry) { |
Yuta HIGUCHI | c611d92 | 2015-02-10 16:07:38 -0800 | [diff] [blame] | 82 | if (entry.wasEvicted()) { |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 83 | entry.getValue().completeExceptionally(new TimeoutException("Timedout waiting for reply")); |
Yuta HIGUCHI | c611d92 | 2015-02-10 16:07:38 -0800 | [diff] [blame] | 84 | } |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 85 | } |
| 86 | }) |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 87 | .build(); |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 88 | |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 89 | private final GenericKeyedObjectPool<Endpoint, Channel> channels |
| 90 | = new GenericKeyedObjectPool<Endpoint, Channel>(new OnosCommunicationChannelFactory()); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 91 | |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 92 | private EventLoopGroup serverGroup; |
| 93 | private EventLoopGroup clientGroup; |
| 94 | private Class<? extends ServerChannel> serverChannelClass; |
| 95 | private Class<? extends Channel> clientChannelClass; |
| 96 | |
Madan Jampani | 5e83f33 | 2014-10-20 15:35:09 -0700 | [diff] [blame] | 97 | private void initEventLoopGroup() { |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 98 | // try Epoll first and if that does work, use nio. |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 99 | try { |
Madan Jampani | 99e9fe2 | 2014-10-21 13:47:12 -0700 | [diff] [blame] | 100 | clientGroup = new EpollEventLoopGroup(); |
| 101 | serverGroup = new EpollEventLoopGroup(); |
| 102 | serverChannelClass = EpollServerSocketChannel.class; |
| 103 | clientChannelClass = EpollSocketChannel.class; |
| 104 | return; |
Thomas Vachuska | 2c2b768 | 2015-05-05 11:59:21 -0700 | [diff] [blame] | 105 | } catch (Throwable e) { |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 106 | log.debug("Failed to initialize native (epoll) transport. " |
| 107 | + "Reason: {}. Proceeding with nio.", e.getMessage()); |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 108 | } |
| 109 | clientGroup = new NioEventLoopGroup(); |
| 110 | serverGroup = new NioEventLoopGroup(); |
| 111 | serverChannelClass = NioServerSocketChannel.class; |
| 112 | clientChannelClass = NioSocketChannel.class; |
Madan Jampani | 5e83f33 | 2014-10-20 15:35:09 -0700 | [diff] [blame] | 113 | } |
| 114 | |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 115 | public void start(Endpoint localEp) throws Exception { |
| 116 | if (started.get()) { |
| 117 | log.warn("Already running at local endpoint: {}", localEp); |
| 118 | return; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 119 | } |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 120 | this.localEp = localEp; |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 121 | channels.setLifo(false); |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 122 | channels.setTestOnBorrow(true); |
| 123 | channels.setTestOnReturn(true); |
Madan Jampani | 5e83f33 | 2014-10-20 15:35:09 -0700 | [diff] [blame] | 124 | initEventLoopGroup(); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 125 | startAcceptingConnections(); |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 126 | started.set(true); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 127 | } |
| 128 | |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 129 | public void stop() throws Exception { |
| 130 | if (started.get()) { |
| 131 | channels.close(); |
| 132 | serverGroup.shutdownGracefully(); |
| 133 | clientGroup.shutdownGracefully(); |
| 134 | started.set(false); |
| 135 | } |
Madan Jampani | 8710093 | 2014-10-21 16:46:12 -0700 | [diff] [blame] | 136 | } |
| 137 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 138 | @Override |
Madan Jampani | 53e44e6 | 2014-10-07 12:39:51 -0700 | [diff] [blame] | 139 | public void sendAsync(Endpoint ep, String type, byte[] payload) throws IOException { |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 140 | InternalMessage message = new InternalMessage(messageIdGenerator.incrementAndGet(), |
| 141 | localEp, |
| 142 | type, |
| 143 | payload); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 144 | sendAsync(ep, message); |
| 145 | } |
| 146 | |
| 147 | protected void sendAsync(Endpoint ep, InternalMessage message) throws IOException { |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 148 | if (ep.equals(localEp)) { |
| 149 | dispatchLocally(message); |
| 150 | return; |
| 151 | } |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 152 | Channel channel = null; |
| 153 | try { |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 154 | try { |
| 155 | channel = channels.borrowObject(ep); |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 156 | channel.writeAndFlush(message).addListener(ChannelFutureListener.CLOSE_ON_FAILURE); |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 157 | } finally { |
| 158 | channels.returnObject(ep, channel); |
| 159 | } |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 160 | } catch (IOException e) { |
| 161 | throw e; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 162 | } catch (Exception e) { |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 163 | throw new IOException(e); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 164 | } |
| 165 | } |
| 166 | |
| 167 | @Override |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 168 | public CompletableFuture<byte[]> sendAndReceive(Endpoint ep, String type, byte[] payload) { |
| 169 | CompletableFuture<byte[]> response = new CompletableFuture<>(); |
Madan Jampani | 24f9efb | 2014-10-24 18:56:23 -0700 | [diff] [blame] | 170 | Long messageId = messageIdGenerator.incrementAndGet(); |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 171 | responseFutures.put(messageId, response); |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 172 | InternalMessage message = new InternalMessage(messageId, localEp, type, payload); |
Madan Jampani | 15cd0b8 | 2014-10-28 08:40:23 -0700 | [diff] [blame] | 173 | try { |
| 174 | sendAsync(ep, message); |
Madan Jampani | 5f9ec9a | 2014-10-29 13:45:52 -0700 | [diff] [blame] | 175 | } catch (Exception e) { |
Madan Jampani | 15cd0b8 | 2014-10-28 08:40:23 -0700 | [diff] [blame] | 176 | responseFutures.invalidate(messageId); |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 177 | response.completeExceptionally(e); |
Madan Jampani | 15cd0b8 | 2014-10-28 08:40:23 -0700 | [diff] [blame] | 178 | } |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 179 | return response; |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 180 | } |
| 181 | |
| 182 | @Override |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 183 | public void registerHandler(String type, Consumer<byte[]> handler, Executor executor) { |
| 184 | handlers.put(type, message -> executor.execute(() -> handler.accept(message.payload()))); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 185 | } |
| 186 | |
Yuta HIGUCHI | e5ca93b | 2014-10-23 09:49:00 -0700 | [diff] [blame] | 187 | @Override |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 188 | public void registerHandler(String type, Function<byte[], byte[]> handler, Executor executor) { |
| 189 | handlers.put(type, message -> executor.execute(() -> { |
| 190 | byte[] responsePayload = handler.apply(message.payload()); |
| 191 | if (responsePayload != null) { |
| 192 | InternalMessage response = new InternalMessage(message.id(), |
| 193 | localEp, |
| 194 | REPLY_MESSAGE_TYPE, |
| 195 | responsePayload); |
| 196 | try { |
| 197 | sendAsync(message.sender(), response); |
| 198 | } catch (IOException e) { |
| 199 | log.debug("Failed to respond", e); |
| 200 | } |
Madan Jampani | 2af244a | 2015-02-22 13:12:01 -0800 | [diff] [blame] | 201 | } |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 202 | })); |
Madan Jampani | 2af244a | 2015-02-22 13:12:01 -0800 | [diff] [blame] | 203 | } |
| 204 | |
| 205 | @Override |
Madan Jampani | 27b69c6 | 2015-05-15 15:49:02 -0700 | [diff] [blame^] | 206 | public void registerHandler(String type, Function<byte[], CompletableFuture<byte[]>> handler) { |
| 207 | handlers.put(type, message -> { |
| 208 | handler.apply(message.payload()).whenComplete((result, error) -> { |
| 209 | if (error == null) { |
| 210 | InternalMessage response = new InternalMessage(message.id(), |
| 211 | localEp, |
| 212 | REPLY_MESSAGE_TYPE, |
| 213 | result); |
| 214 | try { |
| 215 | sendAsync(message.sender(), response); |
| 216 | } catch (IOException e) { |
| 217 | log.debug("Failed to respond", e); |
| 218 | } |
| 219 | } |
| 220 | }); |
| 221 | }); |
| 222 | } |
| 223 | |
| 224 | @Override |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 225 | public void unregisterHandler(String type) { |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 226 | handlers.remove(type); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 227 | } |
| 228 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 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 | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 233 | b.option(ChannelOption.SO_RCVBUF, 1048576); |
| 234 | b.option(ChannelOption.TCP_NODELAY, true); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 235 | b.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT); |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 236 | b.group(serverGroup, clientGroup) |
| 237 | .channel(serverChannelClass) |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 238 | .childHandler(new OnosCommunicationChannelInitializer()) |
| 239 | .option(ChannelOption.SO_BACKLOG, 128) |
| 240 | .childOption(ChannelOption.SO_KEEPALIVE, true); |
| 241 | |
| 242 | // Bind and start to accept incoming connections. |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 243 | b.bind(localEp.port()).sync().addListener(future -> { |
| 244 | if (future.isSuccess()) { |
| 245 | log.info("{} accepting incoming connections on port {}", localEp.host(), localEp.port()); |
| 246 | } else { |
| 247 | log.warn("{} failed to bind to port {}", localEp.host(), localEp.port(), future.cause()); |
| 248 | } |
| 249 | }); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 250 | } |
| 251 | |
| 252 | private class OnosCommunicationChannelFactory |
| 253 | implements KeyedPoolableObjectFactory<Endpoint, Channel> { |
| 254 | |
| 255 | @Override |
| 256 | public void activateObject(Endpoint endpoint, Channel channel) |
| 257 | throws Exception { |
| 258 | } |
| 259 | |
| 260 | @Override |
| 261 | public void destroyObject(Endpoint ep, Channel channel) throws Exception { |
| 262 | channel.close(); |
| 263 | } |
| 264 | |
| 265 | @Override |
| 266 | public Channel makeObject(Endpoint ep) throws Exception { |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 267 | Bootstrap bootstrap = new Bootstrap(); |
| 268 | bootstrap.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT); |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 269 | bootstrap.option(ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK, 10 * 64 * 1024); |
| 270 | bootstrap.option(ChannelOption.WRITE_BUFFER_LOW_WATER_MARK, 10 * 32 * 1024); |
| 271 | bootstrap.option(ChannelOption.SO_SNDBUF, 1048576); |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 272 | bootstrap.group(clientGroup); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 273 | // TODO: Make this faster: |
| 274 | // http://normanmaurer.me/presentations/2014-facebook-eng-netty/slides.html#37.0 |
Madan Jampani | 824a7c1 | 2014-10-21 09:46:15 -0700 | [diff] [blame] | 275 | bootstrap.channel(clientChannelClass); |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 276 | bootstrap.option(ChannelOption.SO_KEEPALIVE, true); |
| 277 | bootstrap.handler(new OnosCommunicationChannelInitializer()); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 278 | // Start the client. |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 279 | ChannelFuture f = bootstrap.connect(ep.host().toString(), ep.port()).sync(); |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 280 | log.info("Established a new connection to {}", ep); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 281 | return f.channel(); |
| 282 | } |
| 283 | |
| 284 | @Override |
| 285 | public void passivateObject(Endpoint ep, Channel channel) |
| 286 | throws Exception { |
| 287 | } |
| 288 | |
| 289 | @Override |
| 290 | public boolean validateObject(Endpoint ep, Channel channel) { |
| 291 | return channel.isOpen(); |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | private class OnosCommunicationChannelInitializer extends ChannelInitializer<SocketChannel> { |
| 296 | |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 297 | private final ChannelHandler dispatcher = new InboundMessageDispatcher(); |
Madan Jampani | 53e44e6 | 2014-10-07 12:39:51 -0700 | [diff] [blame] | 298 | private final ChannelHandler encoder = new MessageEncoder(); |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 299 | |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 300 | @Override |
| 301 | protected void initChannel(SocketChannel channel) throws Exception { |
| 302 | channel.pipeline() |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 303 | .addLast("encoder", encoder) |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 304 | .addLast("decoder", new MessageDecoder()) |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 305 | .addLast("handler", dispatcher); |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 306 | } |
| 307 | } |
| 308 | |
Madan Jampani | ddf7622 | 2014-10-04 23:48:44 -0700 | [diff] [blame] | 309 | @ChannelHandler.Sharable |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 310 | private class InboundMessageDispatcher extends SimpleChannelInboundHandler<InternalMessage> { |
| 311 | |
| 312 | @Override |
| 313 | protected void channelRead0(ChannelHandlerContext ctx, InternalMessage message) throws Exception { |
Thomas Vachuska | fc52fec | 2015-05-18 19:13:56 -0700 | [diff] [blame] | 314 | try { |
| 315 | dispatchLocally(message); |
| 316 | } catch (RejectedExecutionException e) { |
| 317 | log.warn("Unable to dispatch message due to {}", e.getMessage()); |
| 318 | } |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 319 | } |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 320 | |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 321 | @Override |
| 322 | public void exceptionCaught(ChannelHandlerContext context, Throwable cause) { |
Madan Jampani | 29e5dfd | 2014-10-07 17:26:25 -0700 | [diff] [blame] | 323 | log.error("Exception inside channel handling pipeline.", cause); |
Madan Jampani | 86ed055 | 2014-10-03 16:45:42 -0700 | [diff] [blame] | 324 | context.close(); |
| 325 | } |
Madan Jampani | ab6d311 | 2014-10-02 16:30:14 -0700 | [diff] [blame] | 326 | } |
Madan Jampani | 2e5f87b | 2015-02-22 10:37:15 -0800 | [diff] [blame] | 327 | |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 328 | private void dispatchLocally(InternalMessage message) throws IOException { |
Madan Jampani | 49115e9 | 2015-03-14 10:43:33 -0700 | [diff] [blame] | 329 | String type = message.type(); |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 330 | if (REPLY_MESSAGE_TYPE.equals(type)) { |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 331 | try { |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 332 | CompletableFuture<byte[]> futureResponse = |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 333 | responseFutures.getIfPresent(message.id()); |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 334 | if (futureResponse != null) { |
Madan Jampani | 2bfa94c | 2015-04-11 05:03:49 -0700 | [diff] [blame] | 335 | futureResponse.complete(message.payload()); |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 336 | } else { |
| 337 | log.warn("Received a reply for message id:[{}]. " |
| 338 | + " from {}. But was unable to locate the" |
| 339 | + " request handle", message.id(), message.sender()); |
| 340 | } |
| 341 | } finally { |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 342 | responseFutures.invalidate(message.id()); |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 343 | } |
| 344 | return; |
| 345 | } |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 346 | Consumer<InternalMessage> handler = handlers.get(type); |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 347 | if (handler != null) { |
Madan Jampani | c26eede | 2015-04-16 11:42:16 -0700 | [diff] [blame] | 348 | handler.accept(message); |
Madan Jampani | ba47223 | 2015-03-04 13:00:50 -0800 | [diff] [blame] | 349 | } else { |
| 350 | log.debug("No handler registered for {}", type); |
| 351 | } |
| 352 | } |
Ray Milkey | 34c9590 | 2015-04-15 09:47:53 -0700 | [diff] [blame] | 353 | } |