| /* |
| * Copyright 2014-2015 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.net.host.impl; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import org.slf4j.Logger; |
| import org.onosproject.net.config.ConfigOperator; |
| import org.onosproject.net.config.basics.BasicHostConfig; |
| import org.onosproject.net.AnnotationKeys; |
| import org.onosproject.net.DefaultAnnotations; |
| import org.onosproject.net.SparseAnnotations; |
| import org.onosproject.net.host.DefaultHostDescription; |
| import org.onosproject.net.host.HostDescription; |
| |
| /** |
| * Implementations of merge policies for various sources of host configuration |
| * information. This includes applications, provides, and network configurations. |
| */ |
| public final class BasicHostOperator implements ConfigOperator { |
| |
| protected static final double DEFAULT_COORD = -1.0; |
| private static final Logger log = getLogger(BasicHostOperator.class); |
| |
| 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) { |
| return descr; |
| } |
| SparseAnnotations sa = combine(cfg, descr.annotations()); |
| return new DefaultHostDescription(descr.hwAddress(), descr.vlan(), descr.location(), |
| descr.ipAddress(), sa); |
| } |
| |
| /** |
| * Generates an annotation from an existing annotation and HostConfig. |
| * |
| * @param cfg the device config entity from network config |
| * @param an the annotation |
| * @return annotation combining both sources |
| */ |
| public static SparseAnnotations combine(BasicHostConfig cfg, SparseAnnotations an) { |
| DefaultAnnotations.Builder newBuilder = DefaultAnnotations.builder(); |
| if (cfg.name() != null) { |
| newBuilder.set(AnnotationKeys.NAME, cfg.name()); |
| } |
| if (cfg.latitude() != DEFAULT_COORD) { |
| newBuilder.set(AnnotationKeys.LATITUDE, Double.toString(cfg.latitude())); |
| } |
| if (cfg.longitude() != DEFAULT_COORD) { |
| newBuilder.set(AnnotationKeys.LONGITUDE, Double.toString(cfg.longitude())); |
| } |
| if (cfg.rackAddress() != null) { |
| newBuilder.set(AnnotationKeys.RACK_ADDRESS, cfg.rackAddress()); |
| } |
| if (cfg.owner() != null) { |
| newBuilder.set(AnnotationKeys.OWNER, cfg.owner()); |
| } |
| return DefaultAnnotations.union(an, newBuilder.build()); |
| } |
| } |