| /* |
| * Copyright 2015-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.net.host.impl; |
| |
| import org.onlab.packet.IpAddress; |
| import org.onosproject.net.DefaultAnnotations; |
| import org.onosproject.net.Host; |
| import org.onosproject.net.HostLocation; |
| import org.onosproject.net.SparseAnnotations; |
| import org.onosproject.net.config.basics.BasicHostConfig; |
| import org.onosproject.net.device.impl.BasicElementOperator; |
| import org.onosproject.net.host.DefaultHostDescription; |
| import org.onosproject.net.host.HostDescription; |
| |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Implementations of merge policies for various sources of host configuration |
| * information. This includes applications, providers, and network configurations. |
| */ |
| public final class BasicHostOperator extends BasicElementOperator { |
| |
| private BasicHostOperator() { |
| } |
| |
| /** |
| * Generates a HostDescription containing fields from a HostDescription and |
| * a HostConfig. |
| * |
| * @param cfg the host config entity from network config |
| * @param descr a HostDescription |
| * @return HostDescription based on both sources |
| */ |
| public static HostDescription combine(BasicHostConfig cfg, |
| HostDescription descr) { |
| if (cfg == null || descr == null) { |
| return descr; |
| } |
| |
| Set<HostLocation> locations = descr.locations(); |
| Set<HostLocation> cfgLocations = cfg.locations(); |
| if (cfgLocations != null) { |
| locations = cfgLocations.stream() |
| .map(hostLocation -> new HostLocation(hostLocation, System.currentTimeMillis())) |
| .collect(Collectors.toSet()); |
| } |
| |
| Set<IpAddress> ipAddresses = descr.ipAddress(); |
| Set<IpAddress> cfgIpAddresses = cfg.ipAddresses(); |
| if (cfgIpAddresses != null) { |
| ipAddresses = cfgIpAddresses; |
| } |
| |
| SparseAnnotations sa = combine(cfg, descr.annotations()); |
| return new DefaultHostDescription(descr.hwAddress(), descr.vlan(), |
| locations, ipAddresses, |
| descr.configured(), sa); |
| } |
| |
| /** |
| * Generates an annotation from an existing annotation and HostConfig. |
| * |
| * @param cfg the host config entity from network config |
| * @param an the annotation |
| * @return annotation combining both sources |
| */ |
| public static SparseAnnotations combine(BasicHostConfig cfg, SparseAnnotations an) { |
| DefaultAnnotations.Builder builder = DefaultAnnotations.builder(); |
| builder.putAll(an); |
| combineElementAnnotations(cfg, builder); |
| |
| return builder.build(); |
| } |
| |
| /** |
| * Returns a description of the given host. |
| * |
| * @param host the host |
| * @return a description of the host |
| */ |
| public static HostDescription descriptionOf(Host host) { |
| checkNotNull(host, "Must supply a non-null Host"); |
| return new DefaultHostDescription(host.mac(), host.vlan(), host.location(), |
| host.ipAddresses(), host.configured(), |
| (SparseAnnotations) host.annotations()); |
| } |
| } |