+++ /dev/null
-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. 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.sal.binding.impl;
-
-import static com.google.common.base.Preconditions.checkState;
-import com.google.common.base.Preconditions;
-import com.google.common.base.Throwables;
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheBuilder;
-import com.google.common.cache.CacheLoader;
-import com.google.common.cache.LoadingCache;
-import com.google.common.util.concurrent.UncheckedExecutionException;
-import java.util.EventListener;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.atomic.AtomicBoolean;
-import org.opendaylight.controller.md.sal.common.api.routing.RouteChange;
-import org.opendaylight.controller.md.sal.common.api.routing.RouteChangeListener;
-import org.opendaylight.controller.md.sal.common.api.routing.RouteChangePublisher;
-import org.opendaylight.controller.md.sal.common.impl.routing.RoutingUtils;
-import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.RoutedRpcRegistration;
-import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.RpcRegistration;
-import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
-import org.opendaylight.controller.sal.binding.api.rpc.RpcContextIdentifier;
-import org.opendaylight.controller.sal.binding.api.rpc.RpcRouter;
-import org.opendaylight.controller.sal.binding.codegen.RpcIsNotRoutedException;
-import org.opendaylight.controller.sal.binding.codegen.RuntimeCodeGenerator;
-import org.opendaylight.controller.sal.binding.codegen.RuntimeCodeHelper;
-import org.opendaylight.controller.sal.binding.codegen.impl.SingletonHolder;
-import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
-import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.util.ListenerRegistry;
-import org.opendaylight.yangtools.yang.binding.BaseIdentity;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.RpcService;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class RpcProviderRegistryImpl implements RpcProviderRegistry, RouteChangePublisher<RpcContextIdentifier, InstanceIdentifier<?>> {
-
- private RuntimeCodeGenerator rpcFactory = SingletonHolder.RPC_GENERATOR_IMPL;
-
- // cache of proxy objects where each value in the map corresponds to a specific RpcService
- private final LoadingCache<Class<? extends RpcService>, RpcService> publicProxies = CacheBuilder.newBuilder().weakKeys().
- build(new CacheLoader<Class<? extends RpcService>, RpcService>() {
- @Override
- public RpcService load(final Class<? extends RpcService> type) {
- final RpcService proxy = rpcFactory.getDirectProxyFor(type);
- LOG.debug("Created {} as public proxy for {} in {}", proxy, type.getSimpleName(), this);
- return proxy;
- }
- });
-
- private final Cache<Class<? extends RpcService>, RpcRouter<?>> rpcRouters = CacheBuilder.newBuilder().weakKeys()
- .build();
-
- private final ListenerRegistry<RouteChangeListener<RpcContextIdentifier, InstanceIdentifier<?>>> routeChangeListeners = ListenerRegistry
- .create();
- private final ListenerRegistry<RouterInstantiationListener> routerInstantiationListener = ListenerRegistry.create();
-
- private final static Logger LOG = LoggerFactory.getLogger(RpcProviderRegistryImpl.class);
-
- private final String name;
-
- private final ListenerRegistry<GlobalRpcRegistrationListener> globalRpcListeners = ListenerRegistry.create();
-
- public String getName() {
- return name;
- }
-
- public RpcProviderRegistryImpl(final String name) {
- super();
- this.name = name;
- }
-
- @Override
- public final <T extends RpcService> RoutedRpcRegistration<T> addRoutedRpcImplementation(final Class<T> type,
- final T implementation) throws IllegalStateException {
- return getRpcRouter(type).addRoutedRpcImplementation(implementation);
- }
-
- @Override
- public final <T extends RpcService> RpcRegistration<T> addRpcImplementation(final Class<T> type, final T implementation) {
-
- // FIXME: This should be well documented - addRpcImplementation for
- // routed RPCs
- try {
- // Note: If RPC is really global, expected count of registrations
- // of this method is really low.
- RpcRouter<T> potentialRouter = getRpcRouter(type);
- checkState(potentialRouter.getDefaultService() == null,
- "Default service for routed RPC already registered.");
- return potentialRouter.registerDefaultService(implementation);
- } catch (RpcIsNotRoutedException e) {
- // NOOP - we could safely continue, since RPC is not routed
- // so we fallback to global routing.
- LOG.debug("RPC is not routed. Using global registration.",e);
- }
- T publicProxy = getRpcService(type);
- RpcService currentDelegate = RuntimeCodeHelper.getDelegate(publicProxy);
- checkState(currentDelegate == null, "Rpc service is already registered");
- LOG.debug("Registering {} as global implementation of {} in {}", implementation, type.getSimpleName(), this);
- RuntimeCodeHelper.setDelegate(publicProxy, implementation);
- notifyGlobalRpcAdded(type);
- return new RpcProxyRegistration<T>(type, implementation, this);
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public final <T extends RpcService> T getRpcService(final Class<T> type) {
- return (T) publicProxies.getUnchecked(type);
- }
-
-
- public <T extends RpcService> RpcRouter<T> getRpcRouter(final Class<T> type) {
- try {
- final AtomicBoolean created = new AtomicBoolean(false);
- @SuppressWarnings( "unchecked")
- // LoadingCache is unsuitable for RpcRouter since we need to distinguish
- // first creation of RPC Router, so that is why
- // we are using normal cache with load API and shared AtomicBoolean
- // for this call, which will be set to true if router was created.
- RpcRouter<T> router = (RpcRouter<T>) rpcRouters.get(type,new Callable<RpcRouter<?>>() {
-
- @Override
- public org.opendaylight.controller.sal.binding.api.rpc.RpcRouter<?> call() {
- RpcRouter<?> router = rpcFactory.getRouterFor(type, name);
- router.registerRouteChangeListener(new RouteChangeForwarder<T>(type));
- LOG.debug("Registering router {} as global implementation of {} in {}", router, type.getSimpleName(), this);
- RuntimeCodeHelper.setDelegate(getRpcService(type), router.getInvocationProxy());
- created.set(true);
- return router;
- }
- });
- if(created.get()) {
- notifyListenersRoutedCreated(router);
- }
- return router;
- } catch (ExecutionException | UncheckedExecutionException e) {
- // We rethrow Runtime Exceptions which were wrapped by
- // Execution Exceptions
- // otherwise we throw IllegalStateException with original
- Throwables.propagateIfPossible(e.getCause());
- throw new IllegalStateException("Could not load RPC Router for "+type.getName(),e);
- }
- }
-
- private void notifyGlobalRpcAdded(final Class<? extends RpcService> type) {
- for(ListenerRegistration<GlobalRpcRegistrationListener> listener : globalRpcListeners) {
- try {
- listener.getInstance().onGlobalRpcRegistered(type);
- } catch (Exception e) {
- LOG.error("Unhandled exception during invoking listener {}", e);
- }
- }
-
- }
-
- private void notifyListenersRoutedCreated(final RpcRouter<?> router) {
-
- for (ListenerRegistration<RouterInstantiationListener> listener : routerInstantiationListener) {
- try {
- listener.getInstance().onRpcRouterCreated(router);
- } catch (Exception e) {
- LOG.error("Unhandled exception during invoking listener {}", e);
- }
- }
-
- }
-
- public ListenerRegistration<RouterInstantiationListener> registerRouterInstantiationListener(
- final RouterInstantiationListener listener) {
- ListenerRegistration<RouterInstantiationListener> reg = routerInstantiationListener.register(listener);
- try {
- for (RpcRouter<?> router : rpcRouters.asMap().values()) {
- listener.onRpcRouterCreated(router);
- }
- } catch (Exception e) {
- LOG.error("Unhandled exception during invoking listener {}", e);
- }
- return reg;
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public <L extends RouteChangeListener<RpcContextIdentifier, InstanceIdentifier<?>>> ListenerRegistration<L> registerRouteChangeListener(
- final L listener) {
- return (ListenerRegistration<L>) routeChangeListeners.register(listener);
- }
-
- public RuntimeCodeGenerator getRpcFactory() {
- return rpcFactory;
- }
-
- public void setRpcFactory(final RuntimeCodeGenerator rpcFactory) {
- this.rpcFactory = rpcFactory;
- }
-
- public interface RouterInstantiationListener extends EventListener {
- void onRpcRouterCreated(RpcRouter<?> router);
- }
-
- public ListenerRegistration<GlobalRpcRegistrationListener> registerGlobalRpcRegistrationListener(final GlobalRpcRegistrationListener listener) {
- return globalRpcListeners.register(listener);
- }
-
- public interface GlobalRpcRegistrationListener extends EventListener {
- void onGlobalRpcRegistered(Class<? extends RpcService> cls);
- void onGlobalRpcUnregistered(Class<? extends RpcService> cls);
-
- }
-
- private final class RouteChangeForwarder<T extends RpcService> implements RouteChangeListener<Class<? extends BaseIdentity>, InstanceIdentifier<?>> {
- private final Class<T> type;
-
- RouteChangeForwarder(final Class<T> type) {
- this.type = type;
- }
-
- @Override
- public void onRouteChange(final RouteChange<Class<? extends BaseIdentity>, InstanceIdentifier<?>> change) {
- Map<RpcContextIdentifier, Set<InstanceIdentifier<?>>> announcements = new HashMap<>();
- for (Entry<Class<? extends BaseIdentity>, Set<InstanceIdentifier<?>>> entry : change.getAnnouncements()
- .entrySet()) {
- RpcContextIdentifier key = RpcContextIdentifier.contextFor(type, entry.getKey());
- announcements.put(key, entry.getValue());
- }
- Map<RpcContextIdentifier, Set<InstanceIdentifier<?>>> removals = new HashMap<>();
- for (Entry<Class<? extends BaseIdentity>, Set<InstanceIdentifier<?>>> entry : change.getRemovals()
- .entrySet()) {
- RpcContextIdentifier key = RpcContextIdentifier.contextFor(type, entry.getKey());
- removals.put(key, entry.getValue());
- }
- RouteChange<RpcContextIdentifier, InstanceIdentifier<?>> toPublish = RoutingUtils
- .<RpcContextIdentifier, InstanceIdentifier<?>> change(announcements, removals);
- for (ListenerRegistration<RouteChangeListener<RpcContextIdentifier, InstanceIdentifier<?>>> listener : routeChangeListeners) {
- try {
- listener.getInstance().onRouteChange(toPublish);
- } catch (Exception e) {
- LOG.error("Unhandled exception during invoking listener",listener.getInstance(),e);
- }
- }
- }
- }
-
- private static final class RpcProxyRegistration<T extends RpcService> extends AbstractObjectRegistration<T> implements RpcRegistration<T> {
- private final RpcProviderRegistryImpl registry;
- private final Class<T> serviceType;
-
- RpcProxyRegistration(final Class<T> type, final T service, final RpcProviderRegistryImpl registry) {
- super(service);
- this.registry = Preconditions.checkNotNull(registry);
- this.serviceType = type;
- }
-
- @Override
- public Class<T> getServiceType() {
- return serviceType;
- }
-
- @Override
- protected void removeRegistration() {
- T publicProxy = registry.getRpcService(serviceType);
- RpcService currentDelegate = RuntimeCodeHelper.getDelegate(publicProxy);
- if (currentDelegate == getInstance()) {
- RuntimeCodeHelper.setDelegate(publicProxy, null);
- }
- }
- }
-}
Code Review / controller.git / blobdiff