Anton Chigrin | bf14b37 | 2019-01-14 17:29:56 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2019-present Open Networking Foundation |
| 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.openflow.controller.impl; |
| 17 | |
| 18 | import static com.google.common.base.Preconditions.checkNotNull; |
| 19 | import static org.slf4j.LoggerFactory.getLogger; |
| 20 | |
| 21 | import java.util.Map; |
| 22 | import java.util.Set; |
| 23 | import java.util.Collections; |
| 24 | import java.util.stream.Collectors; |
| 25 | import com.google.common.collect.Maps; |
| 26 | import com.google.common.collect.Sets; |
| 27 | import com.google.common.collect.ImmutableSet; |
| 28 | |
| 29 | import org.osgi.service.component.annotations.Activate; |
| 30 | import org.osgi.service.component.annotations.Component; |
| 31 | import org.osgi.service.component.annotations.Deactivate; |
| 32 | import org.osgi.service.component.annotations.Reference; |
| 33 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 34 | import org.onosproject.event.ListenerRegistry; |
| 35 | import org.onosproject.net.DeviceId; |
| 36 | import org.onosproject.openflow.controller.OpenFlowClassifier; |
| 37 | import org.onosproject.openflow.controller.OpenFlowClassifierConfig; |
| 38 | import org.onosproject.openflow.controller.OpenFlowEvent; |
| 39 | import org.onosproject.openflow.controller.OpenFlowListener; |
| 40 | import org.onosproject.openflow.controller.OpenFlowService; |
| 41 | import org.slf4j.Logger; |
| 42 | |
| 43 | import org.onosproject.net.config.ConfigFactory; |
| 44 | import org.onosproject.net.config.NetworkConfigService; |
| 45 | import org.onosproject.net.config.NetworkConfigRegistry; |
| 46 | import org.onosproject.net.config.NetworkConfigListener; |
| 47 | import org.onosproject.net.config.NetworkConfigEvent; |
| 48 | import static org.onosproject.net.config.basics.SubjectFactories.DEVICE_SUBJECT_FACTORY; |
| 49 | |
| 50 | /** |
| 51 | * Manages the inventory of OpenFlow Classifiers in the system. |
| 52 | */ |
| 53 | @Component(immediate = true, service = OpenFlowService.class) |
| 54 | public class OpenFlowClassifierManager extends ListenerRegistry<OpenFlowEvent, OpenFlowListener> |
| 55 | implements OpenFlowService { |
| 56 | |
| 57 | private Logger log = getLogger(getClass()); |
| 58 | |
| 59 | private final InternalConfigListener listener = new InternalConfigListener(); |
| 60 | |
| 61 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 62 | protected NetworkConfigService cfgService; |
| 63 | |
| 64 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 65 | protected NetworkConfigRegistry cfgRegistry; |
| 66 | |
| 67 | private static final String FEATURE_NAME = "classifiers"; |
| 68 | private final Set<ConfigFactory<?, ?>> factories = ImmutableSet.of( |
| 69 | new ConfigFactory<DeviceId, OpenFlowClassifierConfig>(DEVICE_SUBJECT_FACTORY, |
| 70 | OpenFlowClassifierConfig.class, FEATURE_NAME, |
| 71 | true) { |
| 72 | @Override |
| 73 | public OpenFlowClassifierConfig createConfig() { |
| 74 | return new OpenFlowClassifierConfig(); |
| 75 | } |
| 76 | } |
| 77 | ); |
| 78 | |
| 79 | private final Map<DeviceId, Set<OpenFlowClassifier>> classifiersMap = Maps.newConcurrentMap(); |
| 80 | |
| 81 | @Activate |
| 82 | private void activate() { |
| 83 | factories.forEach(cfgRegistry::registerConfigFactory); |
| 84 | cfgService.addListener(listener); |
| 85 | |
| 86 | for (DeviceId subject : cfgService.getSubjects(DeviceId.class, OpenFlowClassifierConfig.class)) { |
| 87 | OpenFlowClassifierConfig config = cfgService.getConfig(subject, OpenFlowClassifierConfig.class); |
| 88 | |
| 89 | if (config != null) { |
| 90 | updateClassifiers(config); |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | log.info("Started Openflow Manager"); |
| 95 | } |
| 96 | |
| 97 | @Deactivate |
| 98 | private void deactivate() { |
| 99 | cfgService.removeListener(listener); |
| 100 | |
| 101 | factories.forEach(cfgRegistry::unregisterConfigFactory); |
| 102 | log.info("Stopped Openflow manager"); |
| 103 | |
| 104 | } |
| 105 | |
| 106 | @Override |
| 107 | public void add(OpenFlowClassifier classifier) { |
| 108 | checkNotNull(classifier, "Classifier cannot be null"); |
| 109 | |
| 110 | OpenFlowClassifierConfig config = |
| 111 | cfgService.addConfig(classifier.deviceId(), OpenFlowClassifierConfig.class); |
| 112 | config.addClassifier(classifier); |
| 113 | cfgService.applyConfig(classifier.deviceId(), OpenFlowClassifierConfig.class, config.node()); |
| 114 | } |
| 115 | |
| 116 | @Override |
| 117 | public void remove(OpenFlowClassifier classifier) { |
| 118 | checkNotNull(classifier, "Classifier cannot be null"); |
| 119 | |
| 120 | OpenFlowClassifierConfig config = cfgService.getConfig(classifier.deviceId(), OpenFlowClassifierConfig.class); |
| 121 | |
| 122 | if (config == null) { |
| 123 | return; |
| 124 | } |
| 125 | |
| 126 | config.removeClassifier(classifier); |
| 127 | cfgService.applyConfig(classifier.deviceId(), OpenFlowClassifierConfig.class, config.node()); |
| 128 | } |
| 129 | |
| 130 | @Override |
| 131 | public Set<OpenFlowClassifier> getClassifiers() { |
| 132 | Set<OpenFlowClassifier> classifiers = Sets.newHashSet(); |
| 133 | |
| 134 | classifiersMap.values().forEach(c -> classifiers.addAll(c)); |
| 135 | |
| 136 | return classifiers; |
| 137 | } |
| 138 | |
| 139 | @Override |
| 140 | public Set<OpenFlowClassifier> getClassifiersByDeviceId(DeviceId deviceId) { |
| 141 | return classifiersMap.get(deviceId); |
| 142 | } |
| 143 | |
| 144 | @Override |
| 145 | public Set<OpenFlowClassifier> getClassifiersByDeviceIdAndQueue(DeviceId deviceId, int idQueue) { |
| 146 | Set<OpenFlowClassifier> classifiers = classifiersMap.get(deviceId); |
| 147 | if (classifiers == null) { |
| 148 | return null; |
| 149 | } else { |
| 150 | return classifiers.stream() |
| 151 | .filter(p -> p.idQueue() == idQueue) |
| 152 | .collect(Collectors.toSet()); |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | private void updateClassifiers(OpenFlowClassifierConfig classfConfig) { |
| 157 | Set<OpenFlowClassifier> old = classifiersMap.put(classfConfig.subject(), |
| 158 | Sets.newHashSet(classfConfig.getClassifiers())); |
| 159 | |
| 160 | if (old == null) { |
| 161 | old = Collections.emptySet(); |
| 162 | } |
| 163 | |
| 164 | for (OpenFlowClassifier classf : classfConfig.getClassifiers()) { |
| 165 | if (old.contains(classf)) { |
| 166 | old.remove(classf); |
| 167 | } else { |
| 168 | process(new OpenFlowEvent(OpenFlowEvent.Type.INSERT, classf)); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | for (OpenFlowClassifier classf : old) { |
| 173 | process(new OpenFlowEvent(OpenFlowEvent.Type.REMOVE, classf)); |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | private void removeClassifiers(DeviceId deviceId) { |
| 178 | Set<OpenFlowClassifier> old = classifiersMap.remove(deviceId); |
| 179 | |
| 180 | for (OpenFlowClassifier classf : old) { |
| 181 | process(new OpenFlowEvent(OpenFlowEvent.Type.REMOVE, classf)); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Listener for network config events. |
| 187 | */ |
| 188 | private class InternalConfigListener implements NetworkConfigListener { |
| 189 | |
| 190 | @Override |
| 191 | public void event(NetworkConfigEvent event) { |
| 192 | if (event.configClass() == OpenFlowClassifierConfig.class) { |
| 193 | switch (event.type()) { |
| 194 | case CONFIG_ADDED: |
| 195 | case CONFIG_UPDATED: |
| 196 | event.config().ifPresent(config -> updateClassifiers((OpenFlowClassifierConfig) config)); |
| 197 | break; |
| 198 | case CONFIG_REMOVED: |
| 199 | removeClassifiers((DeviceId) event.subject()); |
| 200 | break; |
| 201 | case CONFIG_REGISTERED: |
| 202 | case CONFIG_UNREGISTERED: |
| 203 | default: |
| 204 | break; |
| 205 | } |
| 206 | } |
| 207 | } |
| 208 | } |
| 209 | } |