| /* |
| * Copyright 2015-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.incubator.rpc.grpc; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.util.Map; |
| import java.util.NoSuchElementException; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.onosproject.incubator.rpc.RemoteServiceContext; |
| import org.onosproject.net.device.DeviceProviderRegistry; |
| import org.onosproject.net.link.LinkProviderRegistry; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.base.MoreObjects; |
| |
| import io.grpc.ManagedChannel; |
| |
| // gRPC Client side |
| // Probably there should be plug-in mechanism in the future. |
| /** |
| * RemoteServiceContext based on gRPC. |
| * |
| * <p> |
| * Currently it supports {@link DeviceProviderRegistry}. |
| */ |
| public class GrpcRemoteServiceContext implements RemoteServiceContext { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private final Map<Class<? extends Object>, Object> services = new ConcurrentHashMap<>(); |
| |
| private final ManagedChannel channel; |
| |
| public GrpcRemoteServiceContext(ManagedChannel channel) { |
| this.channel = checkNotNull(channel); |
| services.put(DeviceProviderRegistry.class, new DeviceProviderRegistryClientProxy(channel)); |
| services.put(LinkProviderRegistry.class, new LinkProviderRegistryClientProxy(channel)); |
| } |
| |
| |
| @Override |
| public <T> T get(Class<T> serviceClass) { |
| @SuppressWarnings("unchecked") |
| T service = (T) services.get(serviceClass); |
| if (service != null) { |
| return service; |
| } |
| log.error("{} not supported", serviceClass); |
| throw new NoSuchElementException(serviceClass.getTypeName() + " not supported"); |
| } |
| |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(this) |
| .add("services", services.keySet()) |
| .add("channel", channel.authority()) |
| .toString(); |
| } |
| |
| } |