| /* |
| * Copyright 2015 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.pim.impl; |
| |
| 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.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onosproject.incubator.net.intf.Interface; |
| import org.onosproject.incubator.net.intf.InterfaceService; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.provider.ProviderId; |
| import org.slf4j.Logger; |
| import java.util.Map; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.TimeUnit; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Manages PIMInterfaces. |
| * |
| * TODO: Do we need to add a ServiceListener? |
| */ |
| @Component(immediate = true) |
| @Service |
| public class PIMInterfaceManager implements PIMInterfaceService { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| // Create ourselves a provider ID |
| private static final ProviderId PID = new ProviderId("pim", "org.onosproject.pim"); |
| |
| // Create a Scheduled Executor service to send PIM hellos |
| private final ScheduledExecutorService helloScheduler = |
| Executors.newScheduledThreadPool(1); |
| |
| // Wait for a bout 3 seconds before sending the initial hello messages. |
| // TODO: make this tunnable. |
| private final long initialHelloDelay = (long) 3; |
| |
| // Send PIM hello packets: 30 seconds. |
| private final long pimHelloPeriod = (long) 30; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected InterfaceService interfaceService; |
| |
| // Store PIM Interfaces in a map key'd by ConnectPoint |
| private final Map<ConnectPoint, PIMInterface> pimInterfaces = Maps.newConcurrentMap(); |
| |
| @Activate |
| public void activate() { |
| // Query the Interface service to see if Interfaces already exist. |
| log.info("Started"); |
| |
| // Create PIM Interfaces for each of the existing ONOS Interfaces. |
| for (Interface intf : interfaceService.getInterfaces()) { |
| pimInterfaces.put(intf.connectPoint(), new PIMInterface(intf)); |
| } |
| |
| // Schedule the periodic hello sender. |
| helloScheduler.scheduleAtFixedRate(new Runnable() { |
| @Override |
| public void run() { |
| for (PIMInterface pif : pimInterfaces.values()) { |
| pif.sendHello(); |
| } |
| } |
| }, initialHelloDelay, pimHelloPeriod, TimeUnit.SECONDS); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| |
| // Shutdown the periodic hello task. |
| helloScheduler.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| /** |
| * Update the ONOS Interface with the new Interface. If the PIMInterface does |
| * not exist we'll create a new one and store it. |
| * |
| * @param intf ONOS Interface. |
| */ |
| @Override |
| public void updateInterface(Interface intf) { |
| ConnectPoint cp = intf.connectPoint(); |
| |
| log.debug("Updating Interface for " + intf.connectPoint().toString()); |
| pimInterfaces.compute(cp, (k, v) -> (v == null) ? |
| new PIMInterface(intf) : |
| v.setInterface(intf)); |
| } |
| |
| /** |
| * Delete the PIM Interface to the corresponding ConnectPoint. |
| * |
| * @param cp The connect point associated with this interface we want to delete |
| */ |
| @Override |
| public void deleteInterface(ConnectPoint cp) { |
| |
| PIMInterface pi = pimInterfaces.remove(cp); |
| if (pi == null) { |
| log.warn("We've been asked to remove an interface we3 don't have: " + cp.toString()); |
| return; |
| } |
| } |
| |
| /** |
| * Return the PIMInterface that corresponds to the given ConnectPoint. |
| * |
| * @param cp The ConnectPoint we want to get the PIMInterface for |
| * @return The PIMInterface if it exists, NULL if it does not exist. |
| */ |
| @Override |
| public PIMInterface getPIMInterface(ConnectPoint cp) { |
| PIMInterface pi = pimInterfaces.getOrDefault(cp, null); |
| if (pi == null) { |
| log.warn("We have been asked for an Interface we don't have: " + cp.toString()); |
| } |
| return pi; |
| } |
| } |