/* * Copyright IBM Corporation, 2013. All rights reserved. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0 which accompanies this distribution, * and is available at http://www.eclipse.org/legal/epl-v10.html */ package org.opendaylight.controller.networkconfig.neutron.implementation; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.Dictionary; import java.util.EnumSet; import java.util.HashSet; import java.util.List; import java.util.Set; import java.util.Map.Entry; import java.util.concurrent.ConcurrentMap; import org.apache.felix.dm.Component; import org.opendaylight.controller.clustering.services.CacheConfigException; import org.opendaylight.controller.clustering.services.CacheExistException; import org.opendaylight.controller.clustering.services.IClusterContainerServices; import org.opendaylight.controller.clustering.services.IClusterServices; import org.opendaylight.controller.networkconfig.neutron.INeutronNetworkCRUD; import org.opendaylight.controller.networkconfig.neutron.NeutronNetwork; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class NeutronNetworkInterface implements INeutronNetworkCRUD { private static final Logger logger = LoggerFactory.getLogger(NeutronNetworkInterface.class); private String containerName = null; private ConcurrentMap networkDB; private IClusterContainerServices clusterContainerService = null; // methods needed for creating caches void setClusterContainerService(IClusterContainerServices s) { logger.debug("Cluster Service set"); this.clusterContainerService = s; } void unsetClusterContainerService(IClusterContainerServices s) { if (this.clusterContainerService == s) { logger.debug("Cluster Service removed!"); this.clusterContainerService = null; } } @SuppressWarnings("deprecation") private void allocateCache() { if (this.clusterContainerService == null) { logger.error("un-initialized clusterContainerService, can't create cache"); return; } logger.debug("Creating Cache for Neutron Networks"); try { // neutron caches this.clusterContainerService.createCache("neutronNetworks", EnumSet.of(IClusterServices.cacheMode.NON_TRANSACTIONAL)); } catch (CacheConfigException cce) { logger.error("Cache couldn't be created for Neutron Networks - check cache mode"); } catch (CacheExistException cce) { logger.error("Cache for Neutron Networks already exists, destroy and recreate"); } logger.debug("Cache successfully created for Neutron Networks"); } @SuppressWarnings({ "unchecked", "deprecation" }) private void retrieveCache() { if (this.clusterContainerService == null) { logger.error("un-initialized clusterContainerService, can't retrieve cache"); return; } logger.debug("Retrieving cache for Neutron Networks"); networkDB = (ConcurrentMap) this.clusterContainerService.getCache("neutronNetworks"); if (networkDB == null) { logger.error("Cache couldn't be retrieved for Neutron Networks"); } logger.debug("Cache was successfully retrieved for Neutron Networks"); } private void startUp() { allocateCache(); retrieveCache(); } /** * Function called by the dependency manager when all the required * dependencies are satisfied * */ void init(Component c) { Dictionary props = c.getServiceProperties(); if (props != null) { this.containerName = (String) props.get("containerName"); logger.debug("Running containerName: {}", this.containerName); } else { // In the Global instance case the containerName is empty this.containerName = ""; } startUp(); } @SuppressWarnings("deprecation") private void destroyCache() { if (this.clusterContainerService == null) { logger.error("un-initialized clusterMger, can't destroy cache"); return; } logger.debug("Destroying Cache for Neutron Networks"); this.clusterContainerService.destroyCache("Neutron Networks"); } /** * Function called by the dependency manager when at least one dependency * become unsatisfied or when the component is shutting down because for * example bundle is being stopped. * */ void destroy() { destroyCache(); } /** * Function called by dependency manager after "init ()" is called and after * the services provided by the class are registered in the service registry * */ void start() { } /** * Function called by the dependency manager before the services exported by * the component are unregistered, this will be followed by a "destroy ()" * calls * */ void stop() { } // this method uses reflection to update an object from it's delta. private boolean overwrite(Object target, Object delta) { Method[] methods = target.getClass().getMethods(); for(Method toMethod: methods){ if(toMethod.getDeclaringClass().equals(target.getClass()) && toMethod.getName().startsWith("set")){ String toName = toMethod.getName(); String fromName = toName.replace("set", "get"); try { Method fromMethod = delta.getClass().getMethod(fromName); Object value = fromMethod.invoke(delta, (Object[])null); if(value != null){ toMethod.invoke(target, value); } } catch (Exception e) { e.printStackTrace(); return false; } } } return true; } // IfNBNetworkCRUD methods public boolean networkExists(String uuid) { return networkDB.containsKey(uuid); } public NeutronNetwork getNetwork(String uuid) { if (!networkExists(uuid)) return null; return networkDB.get(uuid); } public List getAllNetworks() { Set allNetworks = new HashSet(); for (Entry entry : networkDB.entrySet()) { NeutronNetwork network = entry.getValue(); allNetworks.add(network); } logger.debug("Exiting getAllNetworks, Found {} OpenStackNetworks", allNetworks.size()); List ans = new ArrayList(); ans.addAll(allNetworks); return ans; } public boolean addNetwork(NeutronNetwork input) { if (networkExists(input.getID())) return false; networkDB.putIfAbsent(input.getID(), input); //TODO: add code to find INeutronNetworkAware services and call newtorkCreated on them return true; } public boolean removeNetwork(String uuid) { if (!networkExists(uuid)) return false; networkDB.remove(uuid); //TODO: add code to find INeutronNetworkAware services and call newtorkDeleted on them return true; } public boolean updateNetwork(String uuid, NeutronNetwork delta) { if (!networkExists(uuid)) return false; NeutronNetwork target = networkDB.get(uuid); return overwrite(target, delta); } public boolean networkInUse(String netUUID) { if (!networkExists(netUUID)) return true; NeutronNetwork target = networkDB.get(netUUID); if (target.getPortsOnNetwork().size() > 0) return true; return false; } }