| /* |
| * Copyright 2016-present 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.topo; |
| |
| import com.google.common.collect.ImmutableSet; |
| 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.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.ConsistentMap; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.StorageService; |
| import org.onosproject.ui.UiTopoLayoutService; |
| import org.onosproject.ui.model.topo.UiTopoLayout; |
| import org.onosproject.ui.model.topo.UiTopoLayoutId; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * Manages the user interface topology layouts. |
| * Note that these layouts are persisted and distributed across the cluster. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class UiTopoLayoutManager implements UiTopoLayoutService { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| private ConsistentMap<UiTopoLayoutId, UiTopoLayout> layouts; |
| private Map<UiTopoLayoutId, UiTopoLayout> layoutMap; |
| |
| @Activate |
| public void activate() { |
| KryoNamespace.Builder kryoBuilder = new KryoNamespace.Builder() |
| .register(KryoNamespaces.API) |
| .register(UiTopoLayout.class); |
| |
| layouts = storageService.<UiTopoLayoutId, UiTopoLayout>consistentMapBuilder() |
| .withSerializer(Serializer.using(kryoBuilder.build())) |
| .withName("onos-topo-layouts") |
| .withRelaxedReadConsistency() |
| .build(); |
| layoutMap = layouts.asJavaMap(); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| |
| @Override |
| public Set<UiTopoLayout> getLayouts() { |
| return ImmutableSet.copyOf(layoutMap.values()); |
| } |
| |
| @Override |
| public boolean addLayout(UiTopoLayout layout) { |
| return layouts.put(layout.id(), layout) == null; |
| } |
| |
| @Override |
| public UiTopoLayout getLayout(UiTopoLayoutId layoutId) { |
| return layoutMap.get(layoutId); |
| } |
| |
| @Override |
| public boolean removeLayout(UiTopoLayout layout) { |
| return layouts.remove(layout.id()) != null; |
| } |
| |
| } |