Jonathan Hart | 2b5ceec | 2017-12-04 13:57:19 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-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 | |
| 17 | package org.opencord.cordconfig; |
| 18 | |
| 19 | import com.google.common.collect.ImmutableSet; |
| 20 | import org.apache.felix.scr.annotations.Activate; |
| 21 | import org.apache.felix.scr.annotations.Component; |
| 22 | import org.apache.felix.scr.annotations.Deactivate; |
| 23 | import org.apache.felix.scr.annotations.Reference; |
| 24 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 25 | import org.apache.felix.scr.annotations.Service; |
| 26 | import org.onosproject.event.ListenerRegistry; |
| 27 | import org.onosproject.net.DeviceId; |
| 28 | import org.onosproject.net.config.ConfigFactory; |
| 29 | import org.onosproject.net.config.NetworkConfigEvent; |
| 30 | import org.onosproject.net.config.NetworkConfigListener; |
| 31 | import org.onosproject.net.config.NetworkConfigRegistry; |
| 32 | import org.onosproject.net.config.basics.SubjectFactories; |
| 33 | import org.opencord.cordconfig.access.AccessAgentConfig; |
| 34 | import org.opencord.cordconfig.access.AccessAgentData; |
| 35 | import org.opencord.cordconfig.access.AccessDeviceConfig; |
| 36 | import org.opencord.cordconfig.access.AccessDeviceData; |
| 37 | import org.slf4j.Logger; |
| 38 | import org.slf4j.LoggerFactory; |
| 39 | |
| 40 | import java.util.Map; |
| 41 | import java.util.Optional; |
| 42 | import java.util.Set; |
| 43 | import java.util.concurrent.ConcurrentHashMap; |
| 44 | |
| 45 | import static com.google.common.base.Preconditions.checkNotNull; |
| 46 | |
| 47 | /** |
| 48 | * Manages the common CORD configuration. |
| 49 | */ |
| 50 | @Service |
| 51 | @Component(immediate = true) |
| 52 | public class CordConfigManager extends ListenerRegistry<CordConfigEvent, CordConfigListener> |
| 53 | implements CordConfigService { |
| 54 | private static Logger log = LoggerFactory.getLogger(CordConfigManager.class); |
| 55 | |
| 56 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 57 | protected NetworkConfigRegistry networkConfig; |
| 58 | |
| 59 | private Map<DeviceId, AccessDeviceData> accessDevices = new ConcurrentHashMap<>(); |
| 60 | private Map<DeviceId, AccessAgentData> accessAgents = new ConcurrentHashMap<>(); |
| 61 | |
| 62 | private static final Class<AccessDeviceConfig> ACCESS_DEVICE_CONFIG_CLASS = |
| 63 | AccessDeviceConfig.class; |
| 64 | private static final String ACCESS_DEVICE_CONFIG_KEY = "accessDevice"; |
| 65 | |
| 66 | private ConfigFactory<DeviceId, AccessDeviceConfig> deviceConfigFactory = |
| 67 | new ConfigFactory<DeviceId, AccessDeviceConfig>( |
| 68 | SubjectFactories.DEVICE_SUBJECT_FACTORY, |
| 69 | ACCESS_DEVICE_CONFIG_CLASS, ACCESS_DEVICE_CONFIG_KEY) { |
| 70 | @Override |
| 71 | public AccessDeviceConfig createConfig() { |
| 72 | return new AccessDeviceConfig(); |
| 73 | } |
| 74 | }; |
| 75 | |
| 76 | private static final Class<AccessAgentConfig> ACCESS_AGENT_CONFIG_CLASS = |
| 77 | AccessAgentConfig.class; |
| 78 | private static final String ACCESS_AGENT_CONFIG_KEY = "accessAgent"; |
| 79 | |
| 80 | private ConfigFactory<DeviceId, AccessAgentConfig> agentConfigFactory = |
| 81 | new ConfigFactory<DeviceId, AccessAgentConfig>( |
| 82 | SubjectFactories.DEVICE_SUBJECT_FACTORY, |
| 83 | ACCESS_AGENT_CONFIG_CLASS, ACCESS_AGENT_CONFIG_KEY) { |
| 84 | @Override |
| 85 | public AccessAgentConfig createConfig() { |
| 86 | return new AccessAgentConfig(); |
| 87 | } |
| 88 | }; |
| 89 | |
| 90 | private InternalNetworkConfigListener configListener = |
| 91 | new InternalNetworkConfigListener(); |
| 92 | |
| 93 | @Activate |
| 94 | protected void activate() { |
| 95 | networkConfig.registerConfigFactory(deviceConfigFactory); |
| 96 | networkConfig.registerConfigFactory(agentConfigFactory); |
| 97 | |
| 98 | networkConfig.addListener(configListener); |
| 99 | |
| 100 | networkConfig.getSubjects(DeviceId.class, AccessDeviceConfig.class) |
| 101 | .forEach(this::addAccessDeviceConfig); |
| 102 | |
| 103 | networkConfig.getSubjects(DeviceId.class, AccessAgentConfig.class) |
| 104 | .forEach(this::addAccessAgentConfig); |
| 105 | } |
| 106 | |
| 107 | @Deactivate |
| 108 | protected void deactivate() { |
| 109 | networkConfig.unregisterConfigFactory(deviceConfigFactory); |
| 110 | networkConfig.unregisterConfigFactory(agentConfigFactory); |
| 111 | } |
| 112 | |
| 113 | private void addAccessDeviceConfig(DeviceId subject) { |
| 114 | AccessDeviceConfig config = |
| 115 | networkConfig.getConfig(subject, ACCESS_DEVICE_CONFIG_CLASS); |
| 116 | if (config != null) { |
| 117 | addAccessDevice(config); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | private void addAccessDevice(AccessDeviceConfig config) { |
| 122 | AccessDeviceData accessDevice = config.getAccessDevice(); |
| 123 | accessDevices.put(accessDevice.deviceId(), accessDevice); |
| 124 | process(new CordConfigEvent(CordConfigEvent.Type.ACCESS_DEVICE_ADDED, accessDevice)); |
| 125 | } |
| 126 | |
| 127 | private void updateAccessDevice(AccessDeviceConfig config, AccessDeviceConfig prevConfig) { |
| 128 | AccessDeviceData prevAccessDevice = prevConfig.getAccessDevice(); |
| 129 | accessDevices.remove(prevConfig.subject()); |
| 130 | AccessDeviceData accessDevice = config.getAccessDevice(); |
| 131 | accessDevices.put(accessDevice.deviceId(), accessDevice); |
| 132 | process(new CordConfigEvent(CordConfigEvent.Type.ACCESS_DEVICE_UPDATED, accessDevice, prevAccessDevice)); |
| 133 | } |
| 134 | |
| 135 | private void removeAccessDevice(AccessDeviceConfig prevConfig) { |
| 136 | AccessDeviceData prevAccessDevice = prevConfig.getAccessDevice(); |
| 137 | accessDevices.remove(prevConfig.subject()); |
| 138 | process(new CordConfigEvent(CordConfigEvent.Type.ACCESS_DEVICE_REMOVED, prevAccessDevice)); |
| 139 | } |
| 140 | |
| 141 | private void addAccessAgentConfig(DeviceId subject) { |
| 142 | AccessAgentConfig config = |
| 143 | networkConfig.getConfig(subject, ACCESS_AGENT_CONFIG_CLASS); |
| 144 | if (config != null) { |
| 145 | addAccessAgent(config); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | private void addAccessAgent(AccessAgentConfig config) { |
| 150 | AccessAgentData accessAgent = config.getAgent(); |
| 151 | accessAgents.put(accessAgent.deviceId(), accessAgent); |
| 152 | process(new CordConfigEvent(CordConfigEvent.Type.ACCESS_AGENT_ADDED, accessAgent, null)); |
| 153 | } |
| 154 | |
| 155 | private void updateAccessAgent(AccessAgentConfig config, AccessAgentConfig prevConfig) { |
| 156 | AccessAgentData prevAccessAgent = prevConfig.getAgent(); |
| 157 | accessAgents.remove(prevConfig.subject()); |
| 158 | AccessAgentData accessAgent = config.getAgent(); |
| 159 | accessAgents.put(accessAgent.deviceId(), accessAgent); |
| 160 | process(new CordConfigEvent(CordConfigEvent.Type.ACCESS_AGENT_UPDATED, accessAgent, prevAccessAgent)); |
| 161 | } |
| 162 | |
| 163 | private void removeAccessAgent(AccessAgentConfig prevConfig) { |
| 164 | AccessAgentData prevAccessAgent = prevConfig.getAgent(); |
| 165 | accessAgents.remove(prevConfig.subject()); |
| 166 | process(new CordConfigEvent(CordConfigEvent.Type.ACCESS_AGENT_REMOVED, null, prevAccessAgent)); |
| 167 | } |
| 168 | |
| 169 | @Override |
| 170 | public Set<AccessDeviceData> getAccessDevices() { |
| 171 | return ImmutableSet.copyOf(accessDevices.values()); |
| 172 | } |
| 173 | |
| 174 | @Override |
| 175 | public Optional<AccessDeviceData> getAccessDevice(DeviceId deviceId) { |
| 176 | checkNotNull(deviceId, "Device ID cannot be null"); |
| 177 | return Optional.ofNullable(accessDevices.get(deviceId)); |
| 178 | } |
| 179 | |
| 180 | @Override |
| 181 | public Set<AccessAgentData> getAccessAgents() { |
| 182 | return ImmutableSet.copyOf(accessAgents.values()); |
| 183 | } |
| 184 | |
| 185 | @Override |
| 186 | public Optional<AccessAgentData> getAccessAgent(DeviceId deviceId) { |
| 187 | checkNotNull(deviceId, "Device ID cannot be null"); |
| 188 | return Optional.ofNullable(accessAgents.get(deviceId)); |
| 189 | } |
| 190 | |
| 191 | private class InternalNetworkConfigListener implements NetworkConfigListener { |
| 192 | @Override |
| 193 | public void event(NetworkConfigEvent event) { |
| 194 | if (event.configClass().equals(ACCESS_DEVICE_CONFIG_CLASS)) { |
| 195 | AccessDeviceConfig config = (AccessDeviceConfig) event.config().orElse(null); |
| 196 | AccessDeviceConfig prevConfig = (AccessDeviceConfig) event.prevConfig().orElse(null); |
| 197 | switch (event.type()) { |
| 198 | case CONFIG_ADDED: |
| 199 | addAccessDevice(config); |
| 200 | break; |
| 201 | case CONFIG_UPDATED: |
| 202 | updateAccessDevice(config, prevConfig); |
| 203 | break; |
| 204 | case CONFIG_REMOVED: |
| 205 | removeAccessDevice(prevConfig); |
| 206 | break; |
| 207 | default: |
| 208 | break; |
| 209 | } |
| 210 | } else if (event.configClass().equals(ACCESS_AGENT_CONFIG_CLASS)) { |
| 211 | AccessAgentConfig config = (AccessAgentConfig) event.config().orElse(null); |
| 212 | AccessAgentConfig prevConfig = (AccessAgentConfig) event.prevConfig().orElse(null); |
| 213 | switch (event.type()) { |
| 214 | case CONFIG_ADDED: |
| 215 | addAccessAgent(config); |
| 216 | break; |
| 217 | case CONFIG_UPDATED: |
| 218 | updateAccessAgent(config, prevConfig); |
| 219 | break; |
| 220 | case CONFIG_REMOVED: |
| 221 | removeAccessAgent(prevConfig); |
| 222 | break; |
| 223 | default: |
| 224 | break; |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | } |
| 229 | } |