| /* |
| * 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.protocol.rest.ctl; |
| |
| import com.google.common.collect.ImmutableSet; |
| import org.onosproject.event.EventDeliveryService; |
| import org.onosproject.event.ListenerRegistry; |
| import org.onosproject.event.ListenerService; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.protocol.http.ctl.HttpSBControllerImpl; |
| import org.onosproject.protocol.rest.RestSBController; |
| import org.onosproject.protocol.rest.RestSBDevice; |
| import org.onosproject.protocol.rest.RestSBEventListener; |
| import org.onosproject.protocol.rest.RestSBServerSentEvent; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.ws.rs.client.WebTarget; |
| import javax.ws.rs.sse.InboundSseEvent; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.stream.Collectors; |
| |
| /** |
| * The implementation of RestSBController. |
| */ |
| @Component(immediate = true, service = { RestSBController.class, ListenerService.class }) |
| public class RestSBControllerImpl extends HttpSBControllerImpl |
| implements RestSBController, ListenerService<RestSBServerSentEvent, RestSBEventListener> { |
| |
| private static final Logger log = |
| LoggerFactory.getLogger(RestSBControllerImpl.class); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected EventDeliveryService eventDispatcher; |
| |
| protected final ListenerRegistry<RestSBServerSentEvent, RestSBEventListener> listenerRegistry = |
| new ListenerRegistry<>(); |
| |
| private final Map<DeviceId, RestSBDevice> proxiedDeviceMap = new ConcurrentHashMap<>(); |
| |
| @Activate |
| public void activate() { |
| eventDispatcher.addSink(RestSBServerSentEvent.class, listenerRegistry); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| this.getClientMap().clear(); |
| this.getDeviceMap().clear(); |
| this.getSseEventSourceMap().clear(); |
| log.info("Stopped"); |
| } |
| |
| |
| @Override |
| public void addProxiedDevice(DeviceId deviceId, RestSBDevice proxy) { |
| proxiedDeviceMap.put(deviceId, proxy); |
| log.debug("Added device: {} to proxy {}", deviceId, proxy.deviceId()); |
| } |
| |
| @Override |
| public void removeProxiedDevice(DeviceId deviceId) { |
| log.debug("Removed device: {} from proxy {}", deviceId, proxiedDeviceMap.get(deviceId).deviceId()); |
| proxiedDeviceMap.remove(deviceId); |
| } |
| |
| |
| @Override |
| public Set<DeviceId> getProxiedDevices(DeviceId proxyId) { |
| return ImmutableSet.copyOf( |
| proxiedDeviceMap.keySet().stream().filter( |
| v -> proxiedDeviceMap.get(v).deviceId().equals(proxyId) |
| ).collect(Collectors.toSet())); |
| } |
| |
| @Override |
| public RestSBDevice getProxySBDevice(DeviceId deviceId) { |
| return proxiedDeviceMap.get(deviceId); |
| } |
| |
| @Override |
| protected WebTarget getWebTarget(DeviceId device, String request) { |
| DeviceId deviceId = device; |
| if (proxiedDeviceMap.containsKey(device)) { |
| deviceId = proxiedDeviceMap.get(device).deviceId(); |
| } |
| return super.getWebTarget(deviceId, request); |
| } |
| |
| @Override |
| protected String getUrlString(DeviceId id, String request) { |
| DeviceId deviceId = id; |
| if (proxiedDeviceMap.containsKey(id)) { |
| deviceId = proxiedDeviceMap.get(id).deviceId(); |
| } |
| |
| RestSBDevice device = super.getDeviceMap().get(deviceId); |
| if (device != null) { |
| if (device.url() != null && !device.url().isEmpty()) { |
| return device.protocol() + super.COLON + super.DOUBLESLASH + device.ip().toString() + |
| super.COLON + device.port() |
| + device.url() + request; |
| } else { |
| return device.protocol() + super.COLON + |
| super.DOUBLESLASH + |
| device.ip().toString() + |
| super.COLON + device.port() + request; |
| } |
| } else { |
| return super.getUrlString(deviceId, request); |
| } |
| |
| } |
| |
| @Override |
| public void startServerSentEvents(DeviceId deviceId, String eventsUrl) { |
| this.getServerSentEvents(deviceId, eventsUrl, |
| (event) -> sendEvent(event, deviceId), |
| (error) -> log.error("Unable to handle {} SSEvent from {}. {}", |
| eventsUrl, deviceId, error)); |
| } |
| |
| @Override |
| public void addListener(RestSBEventListener listener) { |
| listenerRegistry.addListener(listener); |
| } |
| |
| @Override |
| public void removeListener(RestSBEventListener listener) { |
| listenerRegistry.removeListener(listener); |
| } |
| |
| /** |
| * Safely posts the specified event to the local event dispatcher. |
| * If there is no event dispatcher or if the event is null, this method |
| * is a noop. |
| * @param sseEvent event to be posted; may be null |
| * @param deviceId the device that sent the event |
| */ |
| protected void sendEvent(InboundSseEvent sseEvent, DeviceId deviceId) { |
| if (sseEvent != null && eventDispatcher != null) { |
| eventDispatcher.post(new RestSBServerSentEvent( |
| RestSBServerSentEvent.Type.SSE_INBOUND, deviceId, sseEvent)); |
| } |
| } |
| } |