| /* |
| * Copyright 2014 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.provider.nil.device.impl; |
| |
| import static com.google.common.base.Strings.isNullOrEmpty; |
| |
| import com.google.common.collect.Lists; |
| import com.google.common.collect.Maps; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Modified; |
| import org.apache.felix.scr.annotations.Property; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onlab.packet.ChassisId; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.MastershipRole; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.device.DefaultDeviceDescription; |
| import org.onosproject.net.device.DefaultPortDescription; |
| import org.onosproject.net.device.DeviceDescription; |
| import org.onosproject.net.device.DeviceProvider; |
| import org.onosproject.net.device.DeviceProviderRegistry; |
| import org.onosproject.net.device.DeviceProviderService; |
| import org.onosproject.net.device.PortDescription; |
| import org.onosproject.net.provider.AbstractProvider; |
| import org.onosproject.net.provider.ProviderId; |
| import org.osgi.service.component.ComponentContext; |
| import org.slf4j.Logger; |
| |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.util.Dictionary; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| |
| import static org.onlab.util.Tools.delay; |
| import static org.onlab.util.Tools.namedThreads; |
| import static org.onlab.util.Tools.toHex; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provider which advertises fake/nonexistant devices to the core. |
| * nodeID is passed as part of the fake device id so that multiple nodes can run simultaneously. |
| * To be used for benchmarking only. |
| */ |
| @Component(immediate = true) |
| public class NullDeviceProvider extends AbstractProvider implements DeviceProvider { |
| |
| private static final Logger log = getLogger(NullDeviceProvider.class); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceProviderRegistry providerRegistry; |
| |
| private DeviceProviderService providerService; |
| |
| private ExecutorService deviceBuilder = Executors.newFixedThreadPool(1, |
| namedThreads("onos-null-device-creator")); |
| |
| |
| //currently hardcoded. will be made configurable via rest/cli. |
| private static final String SCHEME = "null"; |
| private static final int DEF_NUMDEVICES = 10; |
| private static final int DEF_NUMPORTS = 10; |
| |
| //Delay between events in ms. |
| private static final int EVENTINTERVAL = 5; |
| |
| private final Map<Integer, DeviceDescription> descriptions = Maps.newHashMap(); |
| |
| @Property(name = "devConfigs", value = "", label = "Instance-specific configurations") |
| private String devConfigs = ""; |
| |
| private int numDevices = DEF_NUMDEVICES; |
| |
| @Property(name = "numPorts", value = "10", label = "Number of ports per devices") |
| private int numPorts = DEF_NUMPORTS; |
| |
| private DeviceCreator creator; |
| |
| |
| /** |
| * |
| * Creates a provider with the supplier identifier. |
| * |
| */ |
| public NullDeviceProvider() { |
| super(new ProviderId("null", "org.onosproject.provider.nil")); |
| } |
| |
| @Activate |
| public void activate(ComponentContext context) { |
| providerService = providerRegistry.register(this); |
| if (!modified(context)) { |
| deviceBuilder.submit(new DeviceCreator(true)); |
| } |
| log.info("Started"); |
| |
| } |
| |
| @Deactivate |
| public void deactivate(ComponentContext context) { |
| deviceBuilder.submit(new DeviceCreator(false)); |
| try { |
| deviceBuilder.awaitTermination(1000, TimeUnit.MILLISECONDS); |
| } catch (InterruptedException e) { |
| log.error("Device builder did not terminate"); |
| } |
| deviceBuilder.shutdownNow(); |
| providerRegistry.unregister(this); |
| providerService = null; |
| |
| log.info("Stopped"); |
| } |
| |
| @Modified |
| public boolean modified(ComponentContext context) { |
| if (context == null) { |
| log.info("No configuration file, using defaults: numDevices={}, numPorts={}", |
| numDevices, numPorts); |
| return false; |
| } |
| |
| Dictionary<?, ?> properties = context.getProperties(); |
| |
| int newDevNum = DEF_NUMDEVICES; |
| int newPortNum = DEF_NUMPORTS; |
| try { |
| String s = (String) properties.get("devConfigs"); |
| if (!isNullOrEmpty(s)) { |
| newDevNum = getDevicesConfig(s); |
| } |
| s = (String) properties.get("numPorts"); |
| newPortNum = isNullOrEmpty(s) ? DEF_NUMPORTS : Integer.parseInt(s.trim()); |
| } catch (Exception e) { |
| log.warn(e.getMessage()); |
| newDevNum = numDevices; |
| newPortNum = numPorts; |
| } |
| |
| boolean chgd = false; |
| if (newDevNum != numDevices) { |
| numDevices = newDevNum; |
| chgd |= true; |
| } |
| if (newPortNum != numPorts) { |
| numPorts = newPortNum; |
| chgd |= true; |
| } |
| log.info("Using settings numDevices={}, numPorts={}", numDevices, numPorts); |
| if (chgd) { |
| deviceBuilder.submit(new DeviceCreator(true)); |
| } |
| return chgd; |
| } |
| |
| private int getDevicesConfig(String config) { |
| for (String sub : config.split(",")) { |
| String[] params = sub.split(":"); |
| if (params.length == 2) { |
| NodeId that = new NodeId(params[0].trim()); |
| String nd = params[1]; |
| if (clusterService.getLocalNode().id().equals(that)) { |
| return Integer.parseInt(nd.trim()); |
| } |
| continue; |
| } |
| } |
| return DEF_NUMDEVICES; |
| } |
| |
| @Override |
| public void triggerProbe(DeviceId deviceId) {} |
| |
| @Override |
| public void roleChanged(DeviceId deviceId, MastershipRole newRole) {} |
| |
| @Override |
| public boolean isReachable(DeviceId deviceId) { |
| return descriptions.values().stream() |
| .anyMatch(desc -> desc.deviceURI().equals(deviceId.uri())); |
| } |
| |
| |
| private class DeviceCreator implements Runnable { |
| |
| private boolean setup; |
| |
| public DeviceCreator(boolean setup) { |
| this.setup = setup; |
| } |
| |
| @Override |
| public void run() { |
| if (setup) { |
| try { |
| advertiseDevices(); |
| } catch (URISyntaxException e) { |
| log.warn("URI creation failed during device adverts {}", e.getMessage()); |
| } |
| } else { |
| removeDevices(); |
| } |
| } |
| |
| private void removeDevices() { |
| for (DeviceDescription desc : descriptions.values()) { |
| providerService.deviceDisconnected( |
| DeviceId.deviceId(desc.deviceURI())); |
| delay(EVENTINTERVAL); |
| } |
| descriptions.clear(); |
| } |
| |
| private void advertiseDevices() throws URISyntaxException { |
| DeviceId did; |
| ChassisId cid; |
| |
| // nodeIdHash takes into account for nodeID to avoid collisions when running multi-node providers. |
| long nodeIdHash = clusterService.getLocalNode().hashCode() << 16; |
| |
| for (int i = 0; i < numDevices; i++) { |
| // mark 'last' device to facilitate chaining of islands together |
| long id = (i + 1 == numDevices) ? nodeIdHash | 0xffff : nodeIdHash | i; |
| |
| did = DeviceId.deviceId(new URI(SCHEME, toHex(id), null)); |
| cid = new ChassisId(i); |
| DeviceDescription desc = |
| new DefaultDeviceDescription(did.uri(), Device.Type.SWITCH, |
| "ON.Lab", "0.0.1", "0.0.1", "1234", |
| cid); |
| descriptions.put(i, desc); |
| providerService.deviceConnected(did, desc); |
| providerService.updatePorts(did, buildPorts()); |
| delay(EVENTINTERVAL); |
| } |
| } |
| |
| private List<PortDescription> buildPorts() { |
| List<PortDescription> ports = Lists.newArrayList(); |
| for (int i = 0; i < numPorts; i++) { |
| ports.add(new DefaultPortDescription(PortNumber.portNumber(i), true, |
| Port.Type.COPPER, |
| 0)); |
| } |
| return ports; |
| } |
| } |
| } |