| /* |
| * Copyright 2016-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.kafkaintegration.converter; |
| |
| import com.google.protobuf.GeneratedMessageV3; |
| |
| import org.onlab.packet.IpAddress; |
| import org.onosproject.event.Event; |
| import org.onosproject.grpc.net.host.models.HostEnumsProto.HostEventTypeProto; |
| import org.onosproject.grpc.net.host.models.HostEventProto.HostNotificationProto; |
| import org.onosproject.grpc.net.models.HostProtoOuterClass.HostProto; |
| import org.onosproject.incubator.protobuf.models.net.AnnotationsTranslator; |
| import org.onosproject.incubator.protobuf.models.net.HostIdProtoTranslator; |
| import org.onosproject.incubator.protobuf.models.net.HostLocationProtoTranslator; |
| import org.onosproject.net.host.HostEvent; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Converts ONOS Host event message to protobuf format. |
| */ |
| public class HostEventConverter implements EventConverter { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Override |
| public byte[] convertToProtoMessage(Event<?, ?> event) { |
| |
| HostEvent hostEvent = (HostEvent) event; |
| |
| if (!hostEventTypeSupported(hostEvent)) { |
| log.error("Unsupported Onos Host Event {}. There is no matching" |
| + "proto Host Event type", hostEvent.type().toString()); |
| return null; |
| } |
| |
| return ((GeneratedMessageV3) buildHostProtoMessage(hostEvent)).toByteArray(); |
| |
| } |
| |
| /** |
| * Checks if the ONOS Host Event type is supported. |
| * |
| * @param event ONOS Host event |
| * @return true if there is a match and false otherwise |
| */ |
| private boolean hostEventTypeSupported(HostEvent event) { |
| HostEventTypeProto[] hostEvents = HostEventTypeProto.values(); |
| for (HostEventTypeProto hostEventType : hostEvents) { |
| if (hostEventType.name().equals(event.type().name())) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| private HostNotificationProto buildHostProtoMessage(HostEvent hostEvent) { |
| HostNotificationProto.Builder notificationBuilder = |
| HostNotificationProto.newBuilder(); |
| |
| HostProto hostCore = |
| HostProto.newBuilder() |
| .setHostId(HostIdProtoTranslator.translate(hostEvent |
| .subject().id())) |
| .setConfigured(hostEvent.subject().configured()) |
| .addAllIpAddresses(hostEvent.subject().ipAddresses() |
| .stream().map(IpAddress::toString) |
| .collect(Collectors.toList())) |
| .setLocation(HostLocationProtoTranslator.translate( |
| hostEvent.subject().location())) |
| .setVlan(hostEvent.subject().vlan().toShort()) |
| .putAllAnnotations(AnnotationsTranslator.asMap( |
| hostEvent.subject().annotations())) |
| .build(); |
| |
| notificationBuilder.setHostEventType(getProtoType(hostEvent)) |
| .setHost(hostCore); |
| |
| return notificationBuilder.build(); |
| } |
| |
| /** |
| * Retrieves the protobuf generated host event type. |
| * |
| * @param event ONOS Host Event |
| * @return generated Host Event Type |
| */ |
| private HostEventTypeProto getProtoType(HostEvent event) { |
| HostEventTypeProto protobufEventType = null; |
| HostEventTypeProto[] hostEvents = HostEventTypeProto.values(); |
| for (HostEventTypeProto hostEventType : hostEvents) { |
| if (hostEventType.name().equals(event.type().name())) { |
| protobufEventType = hostEventType; |
| } |
| } |
| |
| return protobufEventType; |
| } |
| } |