Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 1 | package org.onlab.onos.store.service.impl; |
| 2 | |
| 3 | import static org.slf4j.LoggerFactory.getLogger; |
| 4 | |
| 5 | import java.util.concurrent.CompletableFuture; |
| 6 | |
| 7 | import net.kuujo.copycat.protocol.PingRequest; |
| 8 | import net.kuujo.copycat.protocol.PollRequest; |
| 9 | import net.kuujo.copycat.protocol.RequestHandler; |
| 10 | import net.kuujo.copycat.protocol.SubmitRequest; |
| 11 | import net.kuujo.copycat.protocol.SyncRequest; |
| 12 | import net.kuujo.copycat.spi.protocol.ProtocolServer; |
| 13 | |
| 14 | import org.onlab.onos.store.cluster.messaging.ClusterCommunicationService; |
| 15 | import org.onlab.onos.store.cluster.messaging.ClusterMessage; |
| 16 | import org.onlab.onos.store.cluster.messaging.ClusterMessageHandler; |
| 17 | import org.slf4j.Logger; |
| 18 | |
| 19 | /** |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame^] | 20 | * ONOS Cluster messaging based Copycat protocol server. |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 21 | */ |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 22 | public class ClusterMessagingProtocolServer implements ProtocolServer { |
| 23 | |
| 24 | private final Logger log = getLogger(getClass()); |
| 25 | private RequestHandler handler; |
| 26 | |
| 27 | public ClusterMessagingProtocolServer(ClusterCommunicationService clusterCommunicator) { |
| 28 | |
| 29 | clusterCommunicator.addSubscriber( |
| 30 | ClusterMessagingProtocol.COPYCAT_PING, new CopycatMessageHandler<PingRequest>()); |
| 31 | clusterCommunicator.addSubscriber( |
| 32 | ClusterMessagingProtocol.COPYCAT_SYNC, new CopycatMessageHandler<SyncRequest>()); |
| 33 | clusterCommunicator.addSubscriber( |
| 34 | ClusterMessagingProtocol.COPYCAT_POLL, new CopycatMessageHandler<PollRequest>()); |
| 35 | clusterCommunicator.addSubscriber( |
| 36 | ClusterMessagingProtocol.COPYCAT_SUBMIT, new CopycatMessageHandler<SubmitRequest>()); |
| 37 | } |
| 38 | |
| 39 | @Override |
| 40 | public void requestHandler(RequestHandler handler) { |
| 41 | this.handler = handler; |
| 42 | } |
| 43 | |
| 44 | @Override |
| 45 | public CompletableFuture<Void> listen() { |
| 46 | return CompletableFuture.completedFuture(null); |
| 47 | } |
| 48 | |
| 49 | @Override |
| 50 | public CompletableFuture<Void> close() { |
| 51 | return CompletableFuture.completedFuture(null); |
| 52 | } |
| 53 | |
| 54 | private class CopycatMessageHandler<T> implements ClusterMessageHandler { |
| 55 | |
| 56 | @Override |
| 57 | public void handle(ClusterMessage message) { |
| 58 | T request = ClusterMessagingProtocol.SERIALIZER.decode(message.payload()); |
| 59 | if (request.getClass().equals(PingRequest.class)) { |
| 60 | handler.ping((PingRequest) request).whenComplete((response, error) -> { |
| 61 | try { |
| 62 | message.respond(ClusterMessagingProtocol.SERIALIZER.encode(response)); |
| 63 | } catch (Exception e) { |
| 64 | log.error("Failed to respond to ping request", e); |
| 65 | } |
| 66 | }); |
| 67 | } else if (request.getClass().equals(PollRequest.class)) { |
| 68 | handler.poll((PollRequest) request).whenComplete((response, error) -> { |
| 69 | try { |
| 70 | message.respond(ClusterMessagingProtocol.SERIALIZER.encode(response)); |
| 71 | } catch (Exception e) { |
| 72 | log.error("Failed to respond to poll request", e); |
| 73 | } |
| 74 | }); |
| 75 | } else if (request.getClass().equals(SyncRequest.class)) { |
| 76 | handler.sync((SyncRequest) request).whenComplete((response, error) -> { |
| 77 | try { |
| 78 | message.respond(ClusterMessagingProtocol.SERIALIZER.encode(response)); |
| 79 | } catch (Exception e) { |
| 80 | log.error("Failed to respond to sync request", e); |
| 81 | } |
| 82 | }); |
| 83 | } else if (request.getClass().equals(SubmitRequest.class)) { |
| 84 | handler.submit((SubmitRequest) request).whenComplete((response, error) -> { |
| 85 | try { |
| 86 | message.respond(ClusterMessagingProtocol.SERIALIZER.encode(response)); |
| 87 | } catch (Exception e) { |
| 88 | log.error("Failed to respond to submit request", e); |
| 89 | } |
| 90 | }); |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | } |