| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * 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.config.impl; |
| |
| 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.config.RpcExecutor; |
| import org.onosproject.config.RpcMessageId; |
| import org.onosproject.d.config.DeviceResourceIds; |
| import org.onosproject.d.config.ResourceIds; |
| import org.onosproject.event.AbstractListenerManager; |
| import org.onosproject.config.DynamicConfigEvent; |
| import org.onosproject.config.DynamicConfigListener; |
| import org.onosproject.config.DynamicConfigService; |
| import org.onosproject.config.DynamicConfigStore; |
| import org.onosproject.config.DynamicConfigStoreDelegate; |
| import org.onosproject.config.FailedException; |
| import org.onosproject.config.Filter; |
| import org.onosproject.yang.model.RpcInput; |
| import org.onosproject.yang.model.RpcOutput; |
| import org.onosproject.yang.model.DataNode; |
| import org.onosproject.yang.model.DataNode.Type; |
| import org.onosproject.yang.model.InnerNode; |
| import org.onosproject.yang.model.ResourceId; |
| import org.onosproject.yang.model.RpcContext; |
| import org.onosproject.yang.model.RpcRegistry; |
| import org.onosproject.yang.model.RpcService; |
| import org.onosproject.yang.model.SchemaContextProvider; |
| |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.ConcurrentHashMap; |
| import org.slf4j.Logger; |
| |
| import static org.onosproject.d.config.DeviceResourceIds.DCS_NAMESPACE; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Implementation of the Dynamic Config Service. |
| * |
| */ |
| @Component(immediate = true) |
| @Service |
| public class DynamicConfigManager |
| extends AbstractListenerManager<DynamicConfigEvent, DynamicConfigListener> |
| implements DynamicConfigService, RpcRegistry { |
| |
| private final Logger log = getLogger(getClass()); |
| private final DynamicConfigStoreDelegate storeDelegate = new InternalStoreDelegate(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DynamicConfigStore store; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected SchemaContextProvider contextProvider; |
| |
| // FIXME is it OK this is not using the Store? |
| private ConcurrentHashMap<String, RpcService> handlerRegistry = new ConcurrentHashMap<>(); |
| |
| @Activate |
| public void activate() { |
| initStore(); |
| store.setDelegate(storeDelegate); |
| eventDispatcher.addSink(DynamicConfigEvent.class, listenerRegistry); |
| log.info("Started"); |
| } |
| |
| /** |
| * Ensure built-in tree nodes exists. |
| */ |
| private void initStore() { |
| store.nodeExist(ResourceIds.ROOT_ID) |
| .thenAccept(exists -> { |
| if (!exists) { |
| log.info("Root node does not exist!, creating..."); |
| store.addNode(null, |
| InnerNode.builder(DeviceResourceIds.ROOT_NAME, DCS_NAMESPACE) |
| .type(Type.SINGLE_INSTANCE_NODE).build()); |
| } |
| }).join(); |
| |
| store.nodeExist(DeviceResourceIds.DEVICES_ID) |
| .thenAccept(exists -> { |
| if (!exists) { |
| log.info("devices node does not exist!, creating..."); |
| store.addNode(ResourceIds.ROOT_ID, |
| InnerNode.builder(DeviceResourceIds.DEVICES_NAME, DCS_NAMESPACE) |
| .type(Type.SINGLE_INSTANCE_NODE).build()); |
| } |
| }).join(); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| store.unsetDelegate(storeDelegate); |
| eventDispatcher.removeSink(DynamicConfigEvent.class); |
| handlerRegistry.clear(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createNode(ResourceId path, DataNode node) { |
| store.addNode(path, node).join(); |
| } |
| |
| @Override |
| public DataNode readNode(ResourceId path, Filter filter) { |
| return store.readNode(path, filter).join(); |
| } |
| |
| @Override |
| public void updateNode(ResourceId path, DataNode node) { |
| store.updateNode(path, node).join(); |
| } |
| |
| @Override |
| public void deleteNode(ResourceId path) { |
| store.deleteNodeRecursive(path).join(); |
| } |
| |
| @Override |
| public void replaceNode(ResourceId path, DataNode node) { |
| throw new FailedException("Not yet implemented"); |
| } |
| |
| @Override |
| public Boolean nodeExist(ResourceId path) { |
| return store.nodeExist(path).join(); |
| } |
| |
| @Override |
| public Set<RpcService> getRpcServices() { |
| Set<RpcService> res = new HashSet(); |
| for (Map.Entry<String, RpcService> e : handlerRegistry.entrySet()) { |
| res.add(e.getValue()); |
| } |
| return res; |
| } |
| |
| @Override |
| public RpcService getRpcService(Class<? extends RpcService> intfc) { |
| return handlerRegistry.get(intfc.getName()); |
| } |
| |
| @Override |
| public void registerRpcService(RpcService handler) { |
| for (Class<?> intfc : handler.getClass().getInterfaces()) { |
| if (RpcService.class.isAssignableFrom(intfc)) { |
| handlerRegistry.put(intfc.getName(), handler); |
| } |
| } |
| } |
| |
| @Override |
| public void unregisterRpcService(RpcService handler) { |
| for (Class<?> intfc : handler.getClass().getInterfaces()) { |
| if (RpcService.class.isAssignableFrom(intfc)) { |
| String key = intfc.getName(); |
| if (handlerRegistry.get(key) == null) { |
| throw new FailedException("No registered handler found, cannot unregister"); |
| } |
| handlerRegistry.remove(key); |
| } |
| } |
| } |
| |
| private int getSvcId(RpcService handler, String srvc) { |
| Class<?>[] intfcs = handler.getClass().getInterfaces(); |
| for (int i = 0; i < intfcs.length; i++) { |
| if (intfcs[i].getName().compareTo(srvc) == 0) { |
| return i; |
| } |
| } |
| throw new FailedException("No handler found, cannot invoke"); |
| } |
| |
| @Override |
| public CompletableFuture<RpcOutput> invokeRpc(ResourceId id, RpcInput input) { |
| RpcContext context = contextProvider.getRpcContext(id); |
| String srvcIntf = context.serviceIntf().getName(); |
| RpcService handler = handlerRegistry.get(srvcIntf); |
| if (handler == null) { |
| throw new FailedException("No registered handler found, cannot invoke"); |
| } |
| return CompletableFuture.supplyAsync( |
| new RpcExecutor(handler, getSvcId(handler, srvcIntf), |
| context.rpcName(), RpcMessageId.generate(), input)); |
| } |
| |
| /** |
| * Auxiliary store delegate to receive notification about changes in the store. |
| */ |
| private class InternalStoreDelegate implements DynamicConfigStoreDelegate { |
| @Override |
| public void notify(DynamicConfigEvent event) { |
| post(event); |
| } |
| } |
| } |