Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 1 | package org.onlab.onos.store.service.impl; |
| 2 | |
Yuta HIGUCHI | a3982c1 | 2014-11-10 09:47:08 -0800 | [diff] [blame] | 3 | import static com.google.common.base.Verify.verifyNotNull; |
Yuta HIGUCHI | 91768e3 | 2014-11-22 05:06:35 -0800 | [diff] [blame] | 4 | import static org.onlab.onos.store.service.impl.ClusterMessagingProtocol.DB_SERIALIZER; |
Yuta HIGUCHI | 2b75f1a | 2014-11-14 16:07:34 -0800 | [diff] [blame] | 5 | import static org.onlab.util.Tools.namedThreads; |
Madan Jampani | 2b6ca91 | 2014-11-21 14:44:45 -0800 | [diff] [blame] | 6 | import static org.slf4j.LoggerFactory.getLogger; |
Yuta HIGUCHI | 03e77e9 | 2014-11-22 17:53:01 -0800 | [diff] [blame^] | 7 | import static java.util.concurrent.Executors.newCachedThreadPool; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 8 | |
| 9 | import java.io.IOException; |
| 10 | import java.util.concurrent.CompletableFuture; |
| 11 | import java.util.concurrent.ExecutionException; |
Yuta HIGUCHI | 2b75f1a | 2014-11-14 16:07:34 -0800 | [diff] [blame] | 12 | import java.util.concurrent.ExecutorService; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 13 | import java.util.concurrent.TimeUnit; |
| 14 | import java.util.concurrent.TimeoutException; |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 15 | import java.util.concurrent.atomic.AtomicBoolean; |
Madan Jampani | 2b6ca91 | 2014-11-21 14:44:45 -0800 | [diff] [blame] | 16 | |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 17 | import net.kuujo.copycat.cluster.TcpMember; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 18 | import net.kuujo.copycat.protocol.PingRequest; |
| 19 | import net.kuujo.copycat.protocol.PingResponse; |
| 20 | import net.kuujo.copycat.protocol.PollRequest; |
| 21 | import net.kuujo.copycat.protocol.PollResponse; |
| 22 | import net.kuujo.copycat.protocol.SubmitRequest; |
| 23 | import net.kuujo.copycat.protocol.SubmitResponse; |
| 24 | import net.kuujo.copycat.protocol.SyncRequest; |
| 25 | import net.kuujo.copycat.protocol.SyncResponse; |
| 26 | import net.kuujo.copycat.spi.protocol.ProtocolClient; |
| 27 | |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 28 | import org.onlab.onos.cluster.ClusterService; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 29 | import org.onlab.onos.cluster.ControllerNode; |
| 30 | import org.onlab.onos.store.cluster.messaging.ClusterCommunicationService; |
| 31 | import org.onlab.onos.store.cluster.messaging.ClusterMessage; |
| 32 | import org.onlab.onos.store.cluster.messaging.MessageSubject; |
| 33 | import org.slf4j.Logger; |
| 34 | |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 35 | /** |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame] | 36 | * ONOS Cluster messaging based Copycat protocol client. |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 37 | */ |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 38 | public class ClusterMessagingProtocolClient implements ProtocolClient { |
| 39 | |
| 40 | private final Logger log = getLogger(getClass()); |
| 41 | |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 42 | public static final long RETRY_INTERVAL_MILLIS = 2000; |
| 43 | |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 44 | private final ClusterService clusterService; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 45 | private final ClusterCommunicationService clusterCommunicator; |
Madan Jampani | 515865d | 2014-11-09 22:29:34 -0800 | [diff] [blame] | 46 | private final ControllerNode localNode; |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 47 | private final TcpMember remoteMember; |
Yuta HIGUCHI | d249943 | 2014-11-20 12:07:43 -0800 | [diff] [blame] | 48 | |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 49 | private ControllerNode remoteNode; |
| 50 | private final AtomicBoolean connectionOK = new AtomicBoolean(true); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 51 | |
Yuta HIGUCHI | 03e77e9 | 2014-11-22 17:53:01 -0800 | [diff] [blame^] | 52 | private ExecutorService pool; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 53 | |
| 54 | public ClusterMessagingProtocolClient( |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 55 | ClusterService clusterService, |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 56 | ClusterCommunicationService clusterCommunicator, |
Madan Jampani | 515865d | 2014-11-09 22:29:34 -0800 | [diff] [blame] | 57 | ControllerNode localNode, |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 58 | TcpMember remoteMember) { |
| 59 | |
| 60 | this.clusterService = clusterService; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 61 | this.clusterCommunicator = clusterCommunicator; |
Madan Jampani | 515865d | 2014-11-09 22:29:34 -0800 | [diff] [blame] | 62 | this.localNode = localNode; |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 63 | this.remoteMember = remoteMember; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | @Override |
| 67 | public CompletableFuture<PingResponse> ping(PingRequest request) { |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 68 | return requestReply(request); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 69 | } |
| 70 | |
| 71 | @Override |
| 72 | public CompletableFuture<SyncResponse> sync(SyncRequest request) { |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 73 | return requestReply(request); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | @Override |
| 77 | public CompletableFuture<PollResponse> poll(PollRequest request) { |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 78 | return requestReply(request); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public CompletableFuture<SubmitResponse> submit(SubmitRequest request) { |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 83 | return requestReply(request); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 84 | } |
| 85 | |
| 86 | @Override |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 87 | public synchronized CompletableFuture<Void> connect() { |
Yuta HIGUCHI | 03e77e9 | 2014-11-22 17:53:01 -0800 | [diff] [blame^] | 88 | if (pool == null || pool.isShutdown()) { |
| 89 | // TODO include remote name? |
| 90 | pool = newCachedThreadPool(namedThreads("copycat-netty-messaging-client-%d")); |
| 91 | } |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 92 | return CompletableFuture.completedFuture(null); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | @Override |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 96 | public synchronized CompletableFuture<Void> close() { |
Yuta HIGUCHI | 03e77e9 | 2014-11-22 17:53:01 -0800 | [diff] [blame^] | 97 | if (pool != null) { |
| 98 | pool.shutdownNow(); |
| 99 | pool = null; |
| 100 | } |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 101 | return CompletableFuture.completedFuture(null); |
| 102 | } |
| 103 | |
Yuta HIGUCHI | 3b01673 | 2014-11-07 15:32:18 -0800 | [diff] [blame] | 104 | private <I> MessageSubject messageType(I input) { |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 105 | Class<?> clazz = input.getClass(); |
| 106 | if (clazz.equals(PollRequest.class)) { |
| 107 | return ClusterMessagingProtocol.COPYCAT_POLL; |
| 108 | } else if (clazz.equals(SyncRequest.class)) { |
| 109 | return ClusterMessagingProtocol.COPYCAT_SYNC; |
| 110 | } else if (clazz.equals(SubmitRequest.class)) { |
| 111 | return ClusterMessagingProtocol.COPYCAT_SUBMIT; |
| 112 | } else if (clazz.equals(PingRequest.class)) { |
| 113 | return ClusterMessagingProtocol.COPYCAT_PING; |
| 114 | } else { |
| 115 | throw new IllegalArgumentException("Unknown class " + clazz.getName()); |
| 116 | } |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 117 | } |
| 118 | |
| 119 | private <I, O> CompletableFuture<O> requestReply(I request) { |
| 120 | CompletableFuture<O> future = new CompletableFuture<>(); |
Yuta HIGUCHI | 03e77e9 | 2014-11-22 17:53:01 -0800 | [diff] [blame^] | 121 | if (pool == null) { |
| 122 | log.info("Attempted to use closed client, connecting now. {}", request); |
| 123 | connect(); |
| 124 | } |
| 125 | pool.submit(new RPCTask<I, O>(request, future)); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 126 | return future; |
| 127 | } |
| 128 | |
Yuta HIGUCHI | 71b9d09 | 2014-11-12 13:31:11 -0800 | [diff] [blame] | 129 | private ControllerNode getControllerNode(TcpMember remoteMember) { |
| 130 | final String host = remoteMember.host(); |
| 131 | final int port = remoteMember.port(); |
| 132 | for (ControllerNode node : clusterService.getNodes()) { |
| 133 | if (node.ip().toString().equals(host) && node.tcpPort() == port) { |
| 134 | return node; |
| 135 | } |
| 136 | } |
| 137 | return null; |
| 138 | } |
| 139 | |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 140 | private class RPCTask<I, O> implements Runnable { |
| 141 | |
Yuta HIGUCHI | e59656d | 2014-11-07 01:57:32 -0800 | [diff] [blame] | 142 | private final I request; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 143 | private final ClusterMessage message; |
| 144 | private final CompletableFuture<O> future; |
| 145 | |
| 146 | public RPCTask(I request, CompletableFuture<O> future) { |
Yuta HIGUCHI | e59656d | 2014-11-07 01:57:32 -0800 | [diff] [blame] | 147 | this.request = request; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 148 | this.message = |
| 149 | new ClusterMessage( |
Madan Jampani | 515865d | 2014-11-09 22:29:34 -0800 | [diff] [blame] | 150 | localNode.id(), |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 151 | messageType(request), |
Yuta HIGUCHI | 91768e3 | 2014-11-22 05:06:35 -0800 | [diff] [blame] | 152 | verifyNotNull(DB_SERIALIZER.encode(request))); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 153 | this.future = future; |
| 154 | } |
| 155 | |
| 156 | @Override |
| 157 | public void run() { |
| 158 | try { |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 159 | if (remoteNode == null) { |
| 160 | remoteNode = getControllerNode(remoteMember); |
| 161 | if (remoteNode == null) { |
| 162 | throw new IOException("Remote node is offline!"); |
| 163 | } |
Yuta HIGUCHI | d249943 | 2014-11-20 12:07:43 -0800 | [diff] [blame] | 164 | } |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 165 | byte[] response = clusterCommunicator |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 166 | .sendAndReceive(message, remoteNode.id()) |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 167 | .get(RETRY_INTERVAL_MILLIS, TimeUnit.MILLISECONDS); |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 168 | if (!connectionOK.getAndSet(true)) { |
| 169 | log.info("Connectivity to {} restored", remoteNode); |
| 170 | } |
Yuta HIGUCHI | 91768e3 | 2014-11-22 05:06:35 -0800 | [diff] [blame] | 171 | future.complete(verifyNotNull(DB_SERIALIZER.decode(response))); |
| 172 | |
Yuta HIGUCHI | d249943 | 2014-11-20 12:07:43 -0800 | [diff] [blame] | 173 | } catch (IOException | TimeoutException e) { |
Madan Jampani | 6234fd4 | 2014-11-21 22:34:28 -0800 | [diff] [blame] | 174 | if (connectionOK.getAndSet(false)) { |
| 175 | log.warn("Detected connectivity issues with {}. Reason: {}", remoteNode, e.getMessage()); |
| 176 | } |
Yuta HIGUCHI | 4520716 | 2014-11-17 15:25:13 -0800 | [diff] [blame] | 177 | log.debug("RPCTask for {} failed.", request, e); |
Madan Jampani | 515865d | 2014-11-09 22:29:34 -0800 | [diff] [blame] | 178 | future.completeExceptionally(e); |
Yuta HIGUCHI | d249943 | 2014-11-20 12:07:43 -0800 | [diff] [blame] | 179 | } catch (ExecutionException e) { |
| 180 | log.warn("RPCTask execution for {} failed: {}", request, e.getMessage()); |
| 181 | log.debug("RPCTask execution for {} failed.", request, e); |
| 182 | future.completeExceptionally(e); |
Yuta HIGUCHI | 2b75f1a | 2014-11-14 16:07:34 -0800 | [diff] [blame] | 183 | } catch (InterruptedException e) { |
Yuta HIGUCHI | 4520716 | 2014-11-17 15:25:13 -0800 | [diff] [blame] | 184 | log.warn("RPCTask for {} was interrupted: {}", request, e.getMessage()); |
| 185 | log.debug("RPCTask for {} was interrupted.", request, e); |
Yuta HIGUCHI | 2b75f1a | 2014-11-14 16:07:34 -0800 | [diff] [blame] | 186 | future.completeExceptionally(e); |
| 187 | Thread.currentThread().interrupt(); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 188 | } catch (Exception e) { |
Yuta HIGUCHI | 9bbaca3 | 2014-11-07 13:08:31 -0800 | [diff] [blame] | 189 | log.warn("RPCTask for {} terribly failed.", request, e); |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 190 | future.completeExceptionally(e); |
| 191 | } |
| 192 | } |
| 193 | } |
Madan Jampani | 515865d | 2014-11-09 22:29:34 -0800 | [diff] [blame] | 194 | } |