Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2017-present Open Networking Foundation |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 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 | |
| 17 | package org.onosproject.p4runtime.ctl; |
| 18 | |
| 19 | import com.google.common.collect.Maps; |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 20 | import com.google.common.util.concurrent.Striped; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 21 | import io.grpc.ManagedChannel; |
| 22 | import io.grpc.ManagedChannelBuilder; |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 23 | import io.grpc.netty.NettyChannelBuilder; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 24 | import org.apache.felix.scr.annotations.Activate; |
| 25 | import org.apache.felix.scr.annotations.Component; |
| 26 | import org.apache.felix.scr.annotations.Deactivate; |
| 27 | import org.apache.felix.scr.annotations.Reference; |
| 28 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 29 | import org.apache.felix.scr.annotations.Service; |
| 30 | import org.onosproject.event.AbstractListenerManager; |
| 31 | import org.onosproject.grpc.api.GrpcChannelId; |
| 32 | import org.onosproject.grpc.api.GrpcController; |
| 33 | import org.onosproject.net.DeviceId; |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 34 | import org.onosproject.net.device.DeviceAgentEvent; |
| 35 | import org.onosproject.net.device.DeviceAgentListener; |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 36 | import org.onosproject.net.provider.ProviderId; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 37 | import org.onosproject.p4runtime.api.P4RuntimeClient; |
| 38 | import org.onosproject.p4runtime.api.P4RuntimeController; |
| 39 | import org.onosproject.p4runtime.api.P4RuntimeEvent; |
| 40 | import org.onosproject.p4runtime.api.P4RuntimeEventListener; |
Yi Tseng | 3e7f145 | 2017-10-20 10:31:53 -0700 | [diff] [blame] | 41 | import org.onosproject.store.service.StorageService; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 42 | import org.slf4j.Logger; |
| 43 | |
| 44 | import java.io.IOException; |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 45 | import java.math.BigInteger; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 46 | import java.util.Map; |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 47 | import java.util.concurrent.ConcurrentMap; |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 48 | import java.util.concurrent.locks.Lock; |
| 49 | import java.util.function.Supplier; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 50 | |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 51 | import static com.google.common.base.Preconditions.checkArgument; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 52 | import static com.google.common.base.Preconditions.checkNotNull; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 53 | import static org.slf4j.LoggerFactory.getLogger; |
| 54 | |
| 55 | /** |
| 56 | * P4Runtime controller implementation. |
| 57 | */ |
| 58 | @Component(immediate = true) |
| 59 | @Service |
| 60 | public class P4RuntimeControllerImpl |
| 61 | extends AbstractListenerManager<P4RuntimeEvent, P4RuntimeEventListener> |
| 62 | implements P4RuntimeController { |
| 63 | |
Carmelo Cascone | dca52ba | 2018-09-07 19:06:26 -0700 | [diff] [blame] | 64 | // Getting the pipeline config from the device can take tens of MBs. |
| 65 | private static final int MAX_INBOUND_MSG_SIZE = 256; // Megabytes. |
| 66 | private static final int MEGABYTES = 1024 * 1024; |
| 67 | |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 68 | private final Logger log = getLogger(getClass()); |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 69 | |
| 70 | private final Map<DeviceId, ClientKey> clientKeys = Maps.newHashMap(); |
| 71 | private final Map<ClientKey, P4RuntimeClient> clients = Maps.newHashMap(); |
Carmelo Cascone | 59f57de | 2017-07-11 19:55:09 -0400 | [diff] [blame] | 72 | private final Map<DeviceId, GrpcChannelId> channelIds = Maps.newHashMap(); |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 73 | |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 74 | private final ConcurrentMap<DeviceId, ConcurrentMap<ProviderId, DeviceAgentListener>> |
| 75 | deviceAgentListeners = Maps.newConcurrentMap(); |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 76 | private final Striped<Lock> stripedLocks = Striped.lock(30); |
| 77 | |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 78 | private DistributedElectionIdGenerator electionIdGenerator; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 79 | |
Carmelo Cascone | 8d99b17 | 2017-07-18 17:26:31 -0400 | [diff] [blame] | 80 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 81 | private GrpcController grpcController; |
Carmelo Cascone | 8d99b17 | 2017-07-18 17:26:31 -0400 | [diff] [blame] | 82 | |
Yi Tseng | 3e7f145 | 2017-10-20 10:31:53 -0700 | [diff] [blame] | 83 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 84 | private StorageService storageService; |
Yi Tseng | 3e7f145 | 2017-10-20 10:31:53 -0700 | [diff] [blame] | 85 | |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 86 | @Activate |
| 87 | public void activate() { |
Carmelo Cascone | 2cad9ef | 2017-08-01 21:52:07 +0200 | [diff] [blame] | 88 | eventDispatcher.addSink(P4RuntimeEvent.class, listenerRegistry); |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 89 | electionIdGenerator = new DistributedElectionIdGenerator(storageService); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 90 | log.info("Started"); |
| 91 | } |
| 92 | |
| 93 | |
| 94 | @Deactivate |
| 95 | public void deactivate() { |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 96 | clientKeys.keySet().forEach(this::removeClient); |
| 97 | clientKeys.clear(); |
| 98 | clients.clear(); |
| 99 | channelIds.clear(); |
| 100 | deviceAgentListeners.clear(); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 101 | grpcController = null; |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 102 | electionIdGenerator.destroy(); |
| 103 | electionIdGenerator = null; |
Carmelo Cascone | 2cad9ef | 2017-08-01 21:52:07 +0200 | [diff] [blame] | 104 | eventDispatcher.removeSink(P4RuntimeEvent.class); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 105 | log.info("Stopped"); |
| 106 | } |
| 107 | |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 108 | @Override |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 109 | public boolean createClient(DeviceId deviceId, String serverAddr, |
| 110 | int serverPort, long p4DeviceId) { |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 111 | checkNotNull(deviceId); |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 112 | checkNotNull(serverAddr); |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 113 | checkArgument(serverPort > 0, "Invalid server port"); |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 114 | |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 115 | return withDeviceLock(() -> doCreateClient( |
| 116 | deviceId, serverAddr, serverPort, p4DeviceId), deviceId); |
| 117 | } |
| 118 | |
| 119 | private boolean doCreateClient(DeviceId deviceId, String serverAddr, |
| 120 | int serverPort, long p4DeviceId) { |
| 121 | |
| 122 | ClientKey clientKey = new ClientKey(deviceId, serverAddr, serverPort, p4DeviceId); |
| 123 | |
| 124 | if (clientKeys.containsKey(deviceId)) { |
| 125 | final ClientKey existingKey = clientKeys.get(deviceId); |
| 126 | if (clientKey.equals(existingKey)) { |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 127 | log.debug("Not creating client for {} as it already exists (server={}:{}, p4DeviceId={})...", |
Carmelo Cascone | dca52ba | 2018-09-07 19:06:26 -0700 | [diff] [blame] | 128 | deviceId, serverAddr, serverPort, p4DeviceId); |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 129 | return true; |
| 130 | } else { |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 131 | log.info("Requested client for {} with new " + |
| 132 | "endpoint, removing old client (server={}:{}, " + |
| 133 | "p4DeviceId={})...", |
| 134 | deviceId, existingKey.serverAddr(), |
| 135 | existingKey.serverPort(), existingKey.p4DeviceId()); |
| 136 | doRemoveClient(deviceId); |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 137 | } |
| 138 | } |
| 139 | |
| 140 | log.info("Creating client for {} (server={}:{}, p4DeviceId={})...", |
| 141 | deviceId, serverAddr, serverPort, p4DeviceId); |
| 142 | |
| 143 | GrpcChannelId channelId = GrpcChannelId.of( |
| 144 | clientKey.deviceId(), "p4runtime-" + clientKey); |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 145 | |
| 146 | ManagedChannelBuilder channelBuilder = NettyChannelBuilder |
| 147 | .forAddress(serverAddr, serverPort) |
Carmelo Cascone | dca52ba | 2018-09-07 19:06:26 -0700 | [diff] [blame] | 148 | .maxInboundMessageSize(MAX_INBOUND_MSG_SIZE * MEGABYTES) |
| 149 | .usePlaintext(); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 150 | |
| 151 | ManagedChannel channel; |
| 152 | try { |
| 153 | channel = grpcController.connectChannel(channelId, channelBuilder); |
| 154 | } catch (IOException e) { |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 155 | log.warn("Unable to connect to gRPC server of {}: {}", |
| 156 | clientKey.deviceId(), e.getMessage()); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 157 | return false; |
| 158 | } |
| 159 | |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 160 | P4RuntimeClient client = new P4RuntimeClientImpl( |
| 161 | clientKey.deviceId(), clientKey.p4DeviceId(), channel, this); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 162 | |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 163 | clientKeys.put(clientKey.deviceId(), clientKey); |
| 164 | clients.put(clientKey, client); |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 165 | channelIds.put(clientKey.deviceId(), channelId); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 166 | |
| 167 | return true; |
| 168 | } |
| 169 | |
| 170 | @Override |
| 171 | public P4RuntimeClient getClient(DeviceId deviceId) { |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 172 | if (deviceId == null) { |
| 173 | return null; |
| 174 | } |
| 175 | return withDeviceLock(() -> doGetClient(deviceId), deviceId); |
| 176 | } |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 177 | |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 178 | private P4RuntimeClient doGetClient(DeviceId deviceId) { |
| 179 | if (!clientKeys.containsKey(deviceId)) { |
| 180 | return null; |
| 181 | } else { |
| 182 | return clients.get(clientKeys.get(deviceId)); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 183 | } |
| 184 | } |
| 185 | |
| 186 | @Override |
| 187 | public void removeClient(DeviceId deviceId) { |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 188 | if (deviceId == null) { |
| 189 | return; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 190 | } |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 191 | withDeviceLock(() -> doRemoveClient(deviceId), deviceId); |
| 192 | } |
| 193 | |
| 194 | private Void doRemoveClient(DeviceId deviceId) { |
| 195 | if (clientKeys.containsKey(deviceId)) { |
| 196 | final ClientKey clientKey = clientKeys.get(deviceId); |
| 197 | clients.get(clientKey).shutdown(); |
| 198 | grpcController.disconnectChannel(channelIds.get(deviceId)); |
| 199 | clientKeys.remove(deviceId); |
| 200 | clients.remove(clientKey); |
| 201 | channelIds.remove(deviceId); |
| 202 | } |
| 203 | return null; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 204 | } |
| 205 | |
| 206 | @Override |
| 207 | public boolean hasClient(DeviceId deviceId) { |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 208 | return clientKeys.containsKey(deviceId); |
Carmelo Cascone | 59f57de | 2017-07-11 19:55:09 -0400 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | @Override |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 212 | public boolean isReachable(DeviceId deviceId) { |
| 213 | if (deviceId == null) { |
| 214 | return false; |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 215 | } |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 216 | return withDeviceLock(() -> doIsReacheable(deviceId), deviceId); |
| 217 | } |
| 218 | |
| 219 | private boolean doIsReacheable(DeviceId deviceId) { |
| 220 | // FIXME: we're not checking for a P4Runtime server, it could be any gRPC service |
| 221 | if (!clientKeys.containsKey(deviceId)) { |
| 222 | log.debug("No client for {}, can't check for reachability", deviceId); |
| 223 | return false; |
| 224 | } |
| 225 | return grpcController.isChannelOpen(channelIds.get(deviceId)); |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 226 | } |
| 227 | |
Yi Tseng | 3e7f145 | 2017-10-20 10:31:53 -0700 | [diff] [blame] | 228 | @Override |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 229 | public void addDeviceAgentListener(DeviceId deviceId, ProviderId providerId, DeviceAgentListener listener) { |
Carmelo Cascone | 7044efd | 2018-07-06 13:01:36 +0200 | [diff] [blame] | 230 | checkNotNull(deviceId, "deviceId cannot be null"); |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 231 | checkNotNull(deviceId, "providerId cannot be null"); |
Carmelo Cascone | 7044efd | 2018-07-06 13:01:36 +0200 | [diff] [blame] | 232 | checkNotNull(listener, "listener cannot be null"); |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 233 | deviceAgentListeners.putIfAbsent(deviceId, Maps.newConcurrentMap()); |
| 234 | deviceAgentListeners.get(deviceId).put(providerId, listener); |
Yi Tseng | 3e7f145 | 2017-10-20 10:31:53 -0700 | [diff] [blame] | 235 | } |
| 236 | |
Andrea Campanella | 1e57344 | 2018-05-17 17:07:13 +0200 | [diff] [blame] | 237 | @Override |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 238 | public void removeDeviceAgentListener(DeviceId deviceId, ProviderId providerId) { |
Carmelo Cascone | 7044efd | 2018-07-06 13:01:36 +0200 | [diff] [blame] | 239 | checkNotNull(deviceId, "deviceId cannot be null"); |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 240 | checkNotNull(providerId, "listener cannot be null"); |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 241 | deviceAgentListeners.computeIfPresent(deviceId, (did, listeners) -> { |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 242 | listeners.remove(providerId); |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 243 | return listeners; |
Andrea Campanella | 1e57344 | 2018-05-17 17:07:13 +0200 | [diff] [blame] | 244 | }); |
| 245 | } |
| 246 | |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 247 | private <U> U withDeviceLock(Supplier<U> task, DeviceId deviceId) { |
| 248 | final Lock lock = stripedLocks.get(deviceId); |
| 249 | lock.lock(); |
| 250 | try { |
| 251 | return task.get(); |
| 252 | } finally { |
| 253 | lock.unlock(); |
| 254 | } |
| 255 | } |
| 256 | |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 257 | BigInteger newMasterElectionId(DeviceId deviceId) { |
| 258 | return electionIdGenerator.generate(deviceId); |
Andrea Campanella | 1e57344 | 2018-05-17 17:07:13 +0200 | [diff] [blame] | 259 | } |
| 260 | |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 261 | void postEvent(P4RuntimeEvent event) { |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 262 | switch (event.type()) { |
| 263 | case CHANNEL_EVENT: |
| 264 | handleChannelEvent(event); |
| 265 | break; |
| 266 | case ARBITRATION_RESPONSE: |
| 267 | handleArbitrationReply(event); |
| 268 | break; |
Carmelo Cascone | de3b684 | 2018-09-05 17:45:10 -0700 | [diff] [blame] | 269 | case PERMISSION_DENIED: |
| 270 | handlePermissionDenied(event); |
| 271 | break; |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 272 | default: |
| 273 | post(event); |
| 274 | break; |
Andrea Campanella | 1e57344 | 2018-05-17 17:07:13 +0200 | [diff] [blame] | 275 | } |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 276 | } |
Carmelo Cascone | 44448a5 | 2018-06-25 23:36:57 +0200 | [diff] [blame] | 277 | |
Carmelo Cascone | de3b684 | 2018-09-05 17:45:10 -0700 | [diff] [blame] | 278 | private void handlePermissionDenied(P4RuntimeEvent event) { |
| 279 | postDeviceAgentEvent(event.subject().deviceId(), new DeviceAgentEvent( |
| 280 | DeviceAgentEvent.Type.NOT_MASTER, event.subject().deviceId())); |
| 281 | } |
| 282 | |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 283 | private void handleChannelEvent(P4RuntimeEvent event) { |
| 284 | final ChannelEvent channelEvent = (ChannelEvent) event.subject(); |
| 285 | final DeviceId deviceId = channelEvent.deviceId(); |
| 286 | final DeviceAgentEvent.Type agentEventType; |
| 287 | switch (channelEvent.type()) { |
| 288 | case OPEN: |
| 289 | agentEventType = DeviceAgentEvent.Type.CHANNEL_OPEN; |
| 290 | break; |
| 291 | case CLOSED: |
| 292 | agentEventType = DeviceAgentEvent.Type.CHANNEL_CLOSED; |
| 293 | break; |
| 294 | case ERROR: |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 295 | agentEventType = !isReachable(deviceId) |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 296 | ? DeviceAgentEvent.Type.CHANNEL_CLOSED |
| 297 | : DeviceAgentEvent.Type.CHANNEL_ERROR; |
| 298 | break; |
| 299 | default: |
| 300 | log.warn("Unrecognized channel event type {}", channelEvent.type()); |
| 301 | return; |
| 302 | } |
| 303 | postDeviceAgentEvent(deviceId, new DeviceAgentEvent(agentEventType, deviceId)); |
| 304 | } |
| 305 | |
| 306 | private void handleArbitrationReply(P4RuntimeEvent event) { |
| 307 | final DeviceId deviceId = event.subject().deviceId(); |
| 308 | final ArbitrationResponse response = (ArbitrationResponse) event.subject(); |
| 309 | final DeviceAgentEvent.Type roleType = response.isMaster() |
| 310 | ? DeviceAgentEvent.Type.ROLE_MASTER |
| 311 | : DeviceAgentEvent.Type.ROLE_STANDBY; |
| 312 | postDeviceAgentEvent(deviceId, new DeviceAgentEvent( |
| 313 | roleType, response.deviceId())); |
| 314 | } |
| 315 | |
| 316 | private void postDeviceAgentEvent(DeviceId deviceId, DeviceAgentEvent event) { |
| 317 | if (deviceAgentListeners.containsKey(deviceId)) { |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 318 | deviceAgentListeners.get(deviceId).values().forEach(l -> l.event(event)); |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 319 | } |
| 320 | } |
Carmelo Cascone | f7aa3f9 | 2017-07-06 23:56:50 -0400 | [diff] [blame] | 321 | } |