| /* |
| * 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.scalablegateway.impl; |
| |
| 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.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.core.GroupId; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| 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.net.device.DeviceService; |
| import org.onosproject.scalablegateway.api.GatewayNode; |
| import org.onosproject.scalablegateway.api.GatewayNodeConfig; |
| import org.onosproject.scalablegateway.api.ScalableGatewayService; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Manages gateway node for gateway scalability. |
| */ |
| |
| @Service |
| @Component(immediate = true) |
| public class ScalableGatewayManager implements ScalableGatewayService { |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private ApplicationId appId; |
| private static final String APP_ID = "org.onosproject.scalablegateway"; |
| private static final String APP_NAME = "scalablegateway"; |
| private static final String GATEWAYNODE_CAN_NOT_BE_NULL = "The gateway node can not be null"; |
| private static final String PORT_CAN_NOT_BE_NULL = "The port can not be null"; |
| private static final String FAIL_ADD_GATEWAY = "Adding process is failed as existing deivce id"; |
| private static final String FAIL_REMOVE_GATEWAY = "Removing process is failed as unknown deivce id"; |
| private static final String PORT_NAME = "portName"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigService configService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigRegistry configRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| private GatewayNodeConfig config; |
| |
| private final NetworkConfigListener configListener = new InternalConfigListener(); |
| |
| private final ConfigFactory configFactory = |
| new ConfigFactory(SubjectFactories.APP_SUBJECT_FACTORY, GatewayNodeConfig.class, APP_NAME) { |
| @Override |
| public GatewayNodeConfig createConfig() { |
| return new GatewayNodeConfig(); |
| } |
| }; |
| private Map<DeviceId, GatewayNode> gatewayNodeMap = Maps.newHashMap(); // Map<GatewayNode`s Id, GatewayNode object> |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(APP_ID); |
| configRegistry.registerConfigFactory(configFactory); |
| configService.addListener(configListener); |
| |
| readConfiguration(); |
| |
| log.info("started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| gatewayNodeMap.clear(); |
| |
| configService.removeListener(configListener); |
| |
| log.info("stopped"); |
| } |
| |
| @Override |
| public GatewayNode getGatewayNode(DeviceId deviceId) { |
| return checkNotNull(gatewayNodeMap.get(deviceId), GATEWAYNODE_CAN_NOT_BE_NULL); |
| } |
| |
| @Override |
| public List<PortNumber> getGatewayExternalPorts(DeviceId deviceId) { |
| GatewayNode gatewayNode = checkNotNull(gatewayNodeMap.get(deviceId), GATEWAYNODE_CAN_NOT_BE_NULL); |
| List<PortNumber> portNumbers = Lists.newArrayList(); |
| gatewayNode.getGatewayExternalInterfaceNames() |
| .stream() |
| .forEach(name -> portNumbers.add(findPortNumFromPortName(gatewayNode.getGatewayDeviceId(), name))); |
| return portNumbers; |
| } |
| |
| private PortNumber findPortNumFromPortName(DeviceId gatewayDeviceId, String name) { |
| Port port = deviceService.getPorts(gatewayDeviceId) |
| .stream() |
| .filter(p -> p.annotations().value(PORT_NAME).equals(name)) |
| .iterator() |
| .next(); |
| return checkNotNull(port, PORT_CAN_NOT_BE_NULL).number(); |
| |
| } |
| |
| @Override |
| public GroupId getGroupIdForGatewayLoadBalance(DeviceId srcDeviceId) { |
| //TODO: Implement group generation method by handler |
| return null; |
| } |
| |
| @Override |
| public List<GatewayNode> getGatewayNodes() { |
| List<GatewayNode> gatewayNodeList = Lists.newArrayList(); |
| gatewayNodeMap.values() |
| .stream() |
| .forEach(gatewayNode -> gatewayNodeList.add(gatewayNode)); |
| return gatewayNodeList; |
| |
| } |
| |
| @Override |
| public List<DeviceId> getGatewayDeviceIds() { |
| List<DeviceId> deviceIdList = Lists.newArrayList(); |
| gatewayNodeMap.values() |
| .stream() |
| .forEach(gatewayNode -> deviceIdList.add(gatewayNode.getGatewayDeviceId())); |
| return deviceIdList; |
| |
| } |
| |
| @Override |
| public boolean addGatewayNode(GatewayNode gatewayNode) { |
| gatewayNodeMap.putIfAbsent(gatewayNode.getGatewayDeviceId(), gatewayNode); |
| return true; |
| } |
| |
| @Override |
| public boolean deleteGatewayNode(GatewayNode gatewayNode) { |
| return gatewayNodeMap.remove(gatewayNode.getGatewayDeviceId(), gatewayNode); |
| } |
| |
| private class InternalConfigListener implements NetworkConfigListener { |
| @Override |
| public void event(NetworkConfigEvent event) { |
| if (!event.configClass().equals(GatewayNodeConfig.class)) { |
| return; |
| } |
| switch (event.type()) { |
| case CONFIG_UPDATED: |
| gatewayNodeMap.clear(); |
| readConfiguration(); |
| break; |
| case CONFIG_ADDED: |
| readConfiguration(); |
| break; |
| default: |
| log.debug("Unsupportable event type is occurred"); |
| break; |
| } |
| } |
| } |
| |
| private void readConfiguration() { |
| config = configService.getConfig(appId, GatewayNodeConfig.class); |
| if (config == null) { |
| log.error("No configuration found"); |
| return; |
| } |
| |
| config.gatewayNodes().forEach(gatewayNode -> addGatewayNode(gatewayNode)); |
| |
| log.info("ScalableGateway configured"); |
| } |
| } |