| /* |
| * 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.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.collect.ImmutableSet; |
| import org.onlab.osgi.ServiceDirectory; |
| import org.onosproject.ui.RequestHandler; |
| import org.onosproject.ui.UiConnection; |
| import org.onosproject.ui.UiMessageHandler; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collection; |
| |
| /** |
| * ONOS UI Layout Topology-Overlay message handler. |
| */ |
| public class LayoutOverlayMessageHandler extends UiMessageHandler { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private static final String DO_LAYOUT = "doLayout"; |
| private static final String TYPE = "type"; |
| |
| RoleBasedLayoutManager layoutManager; |
| |
| @Override |
| public void init(UiConnection connection, ServiceDirectory directory) { |
| super.init(connection, directory); |
| layoutManager = directory.get(RoleBasedLayoutManager.class); |
| } |
| |
| @Override |
| protected Collection<RequestHandler> createRequestHandlers() { |
| return ImmutableSet.of( |
| new LayoutHandler() |
| ); |
| } |
| |
| private final class LayoutHandler extends RequestHandler { |
| |
| public LayoutHandler() { |
| super(DO_LAYOUT); |
| } |
| |
| @Override |
| public void process(ObjectNode payload) { |
| String algorithm = string(payload, TYPE); |
| switch (algorithm) { |
| case "access": |
| layoutManager.layout(new AccessNetworkLayout()); |
| break; |
| default: |
| layoutManager.layout(new DefaultForceLayout()); |
| break; |
| } |
| } |
| } |
| |
| } |