alshabib | 6128634 | 2014-12-24 10:34:00 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2014 Open Networking Laboratory |
| 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 | package org.onosproject.provider.nil.device.impl; |
| 17 | |
| 18 | |
| 19 | import com.google.common.collect.Lists; |
| 20 | import com.google.common.collect.Maps; |
| 21 | import org.apache.felix.scr.annotations.Activate; |
| 22 | import org.apache.felix.scr.annotations.Component; |
| 23 | import org.apache.felix.scr.annotations.Deactivate; |
| 24 | import org.apache.felix.scr.annotations.Reference; |
| 25 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 26 | import org.onlab.packet.ChassisId; |
| 27 | import org.onosproject.net.Device; |
| 28 | import org.onosproject.net.DeviceId; |
| 29 | import org.onosproject.net.MastershipRole; |
| 30 | import org.onosproject.net.Port; |
| 31 | import org.onosproject.net.PortNumber; |
| 32 | import org.onosproject.net.device.DefaultDeviceDescription; |
| 33 | import org.onosproject.net.device.DefaultPortDescription; |
| 34 | import org.onosproject.net.device.DeviceDescription; |
| 35 | import org.onosproject.net.device.DeviceProvider; |
| 36 | import org.onosproject.net.device.DeviceProviderRegistry; |
| 37 | import org.onosproject.net.device.DeviceProviderService; |
| 38 | import org.onosproject.net.device.PortDescription; |
| 39 | import org.onosproject.net.provider.AbstractProvider; |
| 40 | import org.onosproject.net.provider.ProviderId; |
| 41 | import org.slf4j.Logger; |
| 42 | |
| 43 | import java.util.List; |
| 44 | import java.util.Map; |
| 45 | import java.util.concurrent.ExecutorService; |
| 46 | import java.util.concurrent.Executors; |
| 47 | import java.util.concurrent.TimeUnit; |
| 48 | |
| 49 | import static org.onlab.util.Tools.delay; |
| 50 | import static org.onlab.util.Tools.namedThreads; |
| 51 | import static org.slf4j.LoggerFactory.getLogger; |
| 52 | |
| 53 | /** |
| 54 | * Provider which advertises fake/nonexistant devices to the core. |
| 55 | * To be used for benchmarking only. |
| 56 | */ |
| 57 | @Component(immediate = true) |
| 58 | public class NullDeviceProvider extends AbstractProvider implements DeviceProvider { |
| 59 | |
| 60 | private static final Logger log = getLogger(NullDeviceProvider.class); |
| 61 | private static final String SCHEME = "null"; |
| 62 | |
| 63 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 64 | protected DeviceProviderRegistry providerRegistry; |
| 65 | |
| 66 | private DeviceProviderService providerService; |
| 67 | |
| 68 | private ExecutorService deviceBuilder = Executors.newFixedThreadPool(1, |
| 69 | namedThreads("null-device-creator")); |
| 70 | |
| 71 | |
| 72 | |
| 73 | //currently hardcoded. will be made configurable via rest/cli. |
| 74 | private static final int NUMDEVICES = 10; |
| 75 | private static final int NUMPORTSPERDEVICE = 10; |
| 76 | |
| 77 | //Delay between events in ms. |
| 78 | private static final int EVENTINTERVAL = 5; |
| 79 | |
| 80 | private final Map<Integer, DeviceDescription> descriptions = Maps.newHashMap(); |
| 81 | |
| 82 | private DeviceCreator creator; |
| 83 | |
| 84 | |
| 85 | /** |
| 86 | * |
| 87 | * Creates a provider with the supplier identifier. |
| 88 | * |
| 89 | */ |
| 90 | public NullDeviceProvider() { |
| 91 | super(new ProviderId("null", "org.onosproject.provider.nil")); |
| 92 | } |
| 93 | |
| 94 | @Activate |
| 95 | public void activate() { |
| 96 | providerService = providerRegistry.register(this); |
| 97 | deviceBuilder.submit(new DeviceCreator(true)); |
| 98 | log.info("Started"); |
| 99 | |
| 100 | } |
| 101 | |
| 102 | @Deactivate |
| 103 | public void deactivate() { |
| 104 | deviceBuilder.submit(new DeviceCreator(false)); |
| 105 | try { |
| 106 | deviceBuilder.awaitTermination(1000, TimeUnit.MILLISECONDS); |
| 107 | } catch (InterruptedException e) { |
| 108 | log.error("Device builder did not terminate"); |
| 109 | } |
| 110 | deviceBuilder.shutdownNow(); |
| 111 | providerRegistry.unregister(this); |
| 112 | providerService = null; |
| 113 | |
| 114 | log.info("Stopped"); |
| 115 | } |
| 116 | |
| 117 | @Override |
| 118 | public void triggerProbe(DeviceId deviceId) {} |
| 119 | |
| 120 | @Override |
| 121 | public void roleChanged(DeviceId deviceId, MastershipRole newRole) {} |
| 122 | |
| 123 | @Override |
| 124 | public boolean isReachable(DeviceId deviceId) { |
| 125 | return descriptions.values().stream() |
| 126 | .anyMatch(desc -> desc.deviceURI().equals(deviceId.uri())); |
| 127 | } |
| 128 | |
| 129 | |
| 130 | private class DeviceCreator implements Runnable { |
| 131 | |
| 132 | private boolean setup; |
| 133 | |
| 134 | public DeviceCreator(boolean setup) { |
| 135 | this.setup = setup; |
| 136 | } |
| 137 | |
| 138 | @Override |
| 139 | public void run() { |
| 140 | if (setup) { |
| 141 | advertiseDevices(); |
| 142 | } else { |
| 143 | removeDevices(); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | private void removeDevices() { |
| 148 | for (DeviceDescription desc : descriptions.values()) { |
| 149 | providerService.deviceDisconnected( |
| 150 | DeviceId.deviceId(desc.deviceURI())); |
| 151 | delay(EVENTINTERVAL); |
| 152 | } |
| 153 | descriptions.clear(); |
| 154 | } |
| 155 | |
| 156 | private void advertiseDevices() { |
| 157 | DeviceId did; |
| 158 | ChassisId cid; |
| 159 | for (int i = 0; i < NUMDEVICES; i++) { |
| 160 | did = DeviceId.deviceId(String.format("%s:%d", SCHEME, i)); |
| 161 | cid = new ChassisId(i); |
| 162 | DeviceDescription desc = |
| 163 | new DefaultDeviceDescription(did.uri(), Device.Type.SWITCH, |
| 164 | "ON.Lab", "0.0.1", "0.0.1", "1234", |
| 165 | cid); |
| 166 | descriptions.put(i, desc); |
| 167 | providerService.deviceConnected(did, desc); |
| 168 | providerService.updatePorts(did, buildPorts()); |
| 169 | delay(EVENTINTERVAL); |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | private List<PortDescription> buildPorts() { |
| 174 | List<PortDescription> ports = Lists.newArrayList(); |
| 175 | for (int i = 0; i < NUMPORTSPERDEVICE; i++) { |
| 176 | ports.add(new DefaultPortDescription(PortNumber.portNumber(i), true, |
| 177 | Port.Type.COPPER, |
| 178 | (long) 0)); |
| 179 | } |
| 180 | return ports; |
| 181 | } |
| 182 | } |
| 183 | } |