| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * 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.net.newresource.impl; |
| |
| import org.onosproject.net.Device; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.device.DeviceEvent; |
| import org.onosproject.net.device.DeviceListener; |
| import org.onosproject.net.newresource.ResourceAdminService; |
| import org.onosproject.net.newresource.ResourcePath; |
| |
| import java.util.concurrent.ExecutorService; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * An implementation of DeviceListener registering devices as resources. |
| */ |
| final class ResourceDeviceListener implements DeviceListener { |
| |
| private final ResourceAdminService adminService; |
| private final ExecutorService executor; |
| |
| /** |
| * Creates an instance with the specified ResourceAdminService and ExecutorService. |
| * |
| * @param adminService instance invoked to register resources |
| * @param executor executor used for processing resource registration |
| */ |
| ResourceDeviceListener(ResourceAdminService adminService, ExecutorService executor) { |
| this.adminService = checkNotNull(adminService); |
| this.executor = checkNotNull(executor); |
| } |
| |
| @Override |
| public void event(DeviceEvent event) { |
| Device device = event.subject(); |
| switch (event.type()) { |
| case DEVICE_ADDED: |
| registerDeviceResource(device); |
| break; |
| case DEVICE_REMOVED: |
| unregisterDeviceResource(device); |
| break; |
| case PORT_ADDED: |
| registerPortResource(device, event.port()); |
| break; |
| case PORT_REMOVED: |
| unregisterPortResource(device, event.port()); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| private void registerDeviceResource(Device device) { |
| executor.submit(() -> adminService.registerResources(ResourcePath.ROOT, device.id())); |
| } |
| |
| private void unregisterDeviceResource(Device device) { |
| executor.submit(() -> adminService.unregisterResources(ResourcePath.ROOT, device.id())); |
| } |
| |
| private void registerPortResource(Device device, Port port) { |
| ResourcePath parent = ResourcePath.discrete(device.id()); |
| executor.submit(() -> adminService.registerResources(parent, port.number())); |
| } |
| |
| private void unregisterPortResource(Device device, Port port) { |
| ResourcePath parent = ResourcePath.discrete(device.id()); |
| executor.submit(() -> adminService.unregisterResources(parent, port.number())); |
| } |
| } |