| /* |
| * 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.ui.impl; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Lists; |
| import com.google.common.collect.Maps; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onosproject.ui.UiExtension; |
| import org.onosproject.ui.UiExtensionService; |
| import org.onosproject.ui.UiMessageHandlerFactory; |
| import org.onosproject.ui.UiView; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import static com.google.common.collect.ImmutableList.of; |
| import static java.util.stream.Collectors.toSet; |
| |
| /** |
| * Manages the user interface extensions. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class UiExtensionManager implements UiExtensionService { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| // List of all extensions |
| private final List<UiExtension> extensions = Lists.newArrayList(); |
| |
| // Map of views to extensions |
| private final Map<String, UiExtension> views = Maps.newHashMap(); |
| |
| // Core views & core extension |
| private final UiExtension core = createCoreExtension(); |
| |
| |
| // Creates core UI extension |
| private static UiExtension createCoreExtension() { |
| List<UiView> coreViews = of(new UiView("topo", "Topology View"), |
| new UiView("device", "Devices"), |
| new UiView("host", "Hosts"), |
| new UiView("app", "Applications"), |
| new UiView("intent", "Intents"), |
| new UiView("sample", "Sample")); |
| UiMessageHandlerFactory messageHandlerFactory = |
| () -> ImmutableList.of( |
| new TopologyViewMessageHandler(), |
| new DeviceViewMessageHandler(), |
| new HostViewMessageHandler(), |
| new ApplicationViewMessageHandler(), |
| new IntentViewMessageHandler() |
| ); |
| return new UiExtension(coreViews, messageHandlerFactory, "core", |
| UiExtensionManager.class.getClassLoader()); |
| } |
| |
| @Activate |
| public void activate() { |
| register(core); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| unregister(core); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public synchronized void register(UiExtension extension) { |
| if (!extensions.contains(extension)) { |
| extensions.add(extension); |
| for (UiView view : extension.views()) { |
| views.put(view.id(), extension); |
| } |
| } |
| } |
| |
| @Override |
| public synchronized void unregister(UiExtension extension) { |
| extensions.remove(extension); |
| extension.views().stream().map(UiView::id).collect(toSet()).forEach(views::remove); |
| } |
| |
| @Override |
| public synchronized List<UiExtension> getExtensions() { |
| return ImmutableList.copyOf(extensions); |
| } |
| |
| @Override |
| public synchronized UiExtension getViewExtension(String viewId) { |
| return views.get(viewId); |
| } |
| } |