| /* |
| * Copyright 2018-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.layout; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.onosproject.net.config.NetworkConfigService; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.host.HostService; |
| import org.onosproject.net.link.LinkService; |
| import org.onosproject.ui.UiExtension; |
| import org.onosproject.ui.UiExtensionService; |
| import org.onosproject.ui.UiMessageHandlerFactory; |
| import org.onosproject.ui.UiTopoOverlay; |
| import org.onosproject.ui.UiTopoOverlayFactory; |
| import org.onosproject.ui.UiView; |
| import org.onosproject.ui.UiViewHidden; |
| 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 java.util.List; |
| |
| /** |
| * Manages automatic layout of the current network elements into one of several |
| * supported layout variants using roles assigned to network elements using |
| * network configuration. |
| */ |
| @Component(immediate = true, service = RoleBasedLayoutManager.class) |
| public class RoleBasedLayoutManager { |
| |
| private Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private static final String VIEW_ID = "tlTopov"; |
| private static final String OVERLAY_ID = "tl-overlay"; |
| |
| // List of application views |
| private final List<UiView> uiViews = ImmutableList.of( |
| new UiViewHidden(VIEW_ID) |
| ); |
| |
| // Factory for UI message handlers |
| private final UiMessageHandlerFactory messageHandlerFactory = |
| () -> ImmutableList.of(new LayoutOverlayMessageHandler()); |
| |
| // Factory for UI topology overlays |
| private final UiTopoOverlayFactory topoOverlayFactory = |
| () -> ImmutableList.of(new UiTopoOverlay(OVERLAY_ID)); |
| |
| // Application UI extension |
| protected UiExtension extension = |
| new UiExtension.Builder(getClass().getClassLoader(), uiViews) |
| .resourcePath(VIEW_ID) |
| .messageHandlerFactory(messageHandlerFactory) |
| .topoOverlayFactory(topoOverlayFactory) |
| .build(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected NetworkConfigService networkConfigService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected HostService hostService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected LinkService linkService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected UiExtensionService uiExtensionService; |
| |
| @Activate |
| protected void activate() { |
| uiExtensionService.register(extension); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| uiExtensionService.unregister(extension); |
| log.info("Stopped"); |
| } |
| |
| /** |
| * Executes the specified layout algorithm. |
| * |
| * @param algorithm layout algorithm |
| */ |
| public void layout(LayoutAlgorithm algorithm) { |
| algorithm.init(deviceService, hostService, linkService, networkConfigService); |
| algorithm.classify(); |
| log.info("Layout classified: {}", algorithm); |
| algorithm.apply(); |
| } |
| |
| } |