| /* |
| * Copyright 2016-present 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.artemis.impl; |
| |
| import com.google.common.collect.Sets; |
| 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.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.config.ConfigFactory; |
| import org.onosproject.net.config.NetworkConfigEvent; |
| import org.onosproject.net.config.NetworkConfigListener; |
| import org.onosproject.net.config.NetworkConfigRegistry; |
| import org.onosproject.net.config.NetworkConfigService; |
| import org.onosproject.net.config.basics.SubjectFactories; |
| import org.onosproject.routing.bgp.BgpInfoService; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.Timer; |
| |
| /** |
| * Artemis Component. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class ArtemisManager implements ArtemisService { |
| private static final String ARTEMIS_APP_ID = "org.onosproject.artemis"; |
| private static final Class<ArtemisConfig> CONFIG_CLASS = ArtemisConfig.class; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| private NetworkConfigRegistry registry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| private NetworkConfigService configService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| private CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| private BgpInfoService bgpInfoService; |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private ApplicationId appId; |
| public static boolean logging = false; |
| |
| private Set<PrefixHandler> prefixHandlers = Sets.newHashSet(); |
| private Deaggregator deaggr; |
| private Timer timer; |
| |
| private final InternalNetworkConfigListener configListener = |
| new InternalNetworkConfigListener(); |
| |
| private ConfigFactory<ApplicationId, ArtemisConfig> artemisConfigFactory = |
| new ConfigFactory<ApplicationId, ArtemisConfig>( |
| SubjectFactories.APP_SUBJECT_FACTORY, ArtemisConfig.class, "artemis") { |
| @Override |
| public ArtemisConfig createConfig() { |
| return new ArtemisConfig(); |
| } |
| }; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(ARTEMIS_APP_ID); |
| configService.addListener(configListener); |
| registry.registerConfigFactory(artemisConfigFactory); |
| log.info("Artemis Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| configService.removeListener(configListener); |
| registry.unregisterConfigFactory(artemisConfigFactory); |
| prefixHandlers.forEach(PrefixHandler::stopPrefixMonitors); |
| log.info("Artemis Stopped"); |
| } |
| |
| /** |
| * Helper function to start and stop monitors on configuration changes. |
| */ |
| private void setUpConfiguration() { |
| ArtemisConfig config = configService.getConfig(appId, CONFIG_CLASS); |
| |
| if (config == null) { |
| log.warn("No artemis config available!"); |
| return; |
| } |
| |
| final Set<ArtemisConfig.ArtemisPrefixes> prefixes = config.monitoredPrefixes(); |
| final Integer frequency = config.detectionFrequency(); |
| final Map<String, Set<String>> monitors = config.activeMonitors(); |
| |
| Set<PrefixHandler> toRemove = Sets.newHashSet(prefixHandlers); |
| |
| for (ArtemisConfig.ArtemisPrefixes curr : prefixes) { |
| final Optional<PrefixHandler> handler = prefixHandlers |
| .stream() |
| .filter(prefixHandler -> prefixHandler.getPrefix().equals(curr.prefix())) |
| .findFirst(); |
| |
| if (handler.isPresent()) { |
| PrefixHandler oldHandler = handler.get(); |
| oldHandler.changeMonitors(monitors); |
| |
| // remove the ones we are going to keep from toRemove list |
| toRemove.remove(oldHandler); |
| } else { |
| // Add new handler |
| PrefixHandler newHandler = new PrefixHandler(curr.prefix(), monitors); |
| newHandler.startPrefixMonitors(); |
| prefixHandlers.add(newHandler); |
| } |
| } |
| |
| // stop and remove old monitors that do not exist on new configuration |
| toRemove.forEach(PrefixHandler::stopPrefixMonitors); |
| prefixHandlers.removeAll(toRemove); |
| |
| // new timer task with updated bgp speakers |
| deaggr = new Deaggregator(bgpInfoService); |
| deaggr.setPrefixes(prefixes); |
| |
| if (timer != null) { |
| timer.cancel(); |
| } |
| timer = new Timer(); |
| timer.scheduleAtFixedRate(deaggr, frequency, frequency); |
| } |
| |
| @Override |
| public void setLogger(boolean value) { |
| logging = value; |
| } |
| |
| private class InternalNetworkConfigListener implements NetworkConfigListener { |
| |
| @Override |
| public void event(NetworkConfigEvent event) { |
| switch (event.type()) { |
| case CONFIG_REGISTERED: |
| break; |
| case CONFIG_UNREGISTERED: |
| break; |
| case CONFIG_ADDED: |
| case CONFIG_UPDATED: |
| case CONFIG_REMOVED: |
| if (event.configClass() == CONFIG_CLASS) { |
| setUpConfiguration(); |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| } |