| /* |
| * 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.openstackvtap.api; |
| |
| import org.onlab.util.Tools; |
| import org.onosproject.event.AbstractEvent; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| import static com.google.common.base.Preconditions.checkState; |
| |
| /** |
| * Describes openstack vtap event. |
| */ |
| public class OpenstackVtapEvent extends AbstractEvent<OpenstackVtapEvent.Type, Object> { |
| |
| private static final String INVALID_OBJ_TYPE = "Invalid OpenstackVtapEvent object type of %"; |
| |
| /** |
| * Type of openstack vtap events. |
| */ |
| public enum Type { |
| |
| /** |
| * Signifies that a new openstack vtap network has been added. |
| */ |
| VTAP_NETWORK_ADDED, |
| |
| /** |
| * Signifies that a openstack vtap network has been changed. |
| */ |
| VTAP_NETWORK_UPDATED, |
| |
| /** |
| * Signifies that a openstack vtap network has been removed. |
| */ |
| VTAP_NETWORK_REMOVED, |
| |
| /** |
| * Signifies that a new openstack vtap has been added. |
| */ |
| VTAP_ADDED, |
| |
| /** |
| * Signifies that a openstack vtap has been changed. |
| */ |
| VTAP_UPDATED, |
| |
| /** |
| * Signifies that a openstack vtap has been removed. |
| */ |
| VTAP_REMOVED, |
| } |
| |
| private final Object prevSubject; |
| |
| /** |
| * Creates an event with previous openstack vtap network subject. |
| * |
| * The openstack vtap network subject is null if the type is removed |
| * The previous openstack vtap network subject is null if the type is added |
| * |
| * @param type openstack vtap event type |
| * @param vtapNetwork event openstack vtap network subject |
| * @param prevVtapNetwork previous openstack vtap network subject |
| */ |
| public OpenstackVtapEvent(Type type, |
| OpenstackVtapNetwork vtapNetwork, |
| OpenstackVtapNetwork prevVtapNetwork) { |
| super(type, vtapNetwork); |
| prevSubject = prevVtapNetwork; |
| } |
| |
| /** |
| * Creates an event of a given type and for the specified openstack vtap network and time. |
| * |
| * @param type openstack vtap event type |
| * @param vtapNetwork event openstack vtap network subject |
| * @param prevVtapNetwork previous openstack vtap network subject |
| * @param time occurrence time |
| */ |
| public OpenstackVtapEvent(Type type, |
| OpenstackVtapNetwork vtapNetwork, |
| OpenstackVtapNetwork prevVtapNetwork, |
| long time) { |
| super(type, vtapNetwork, time); |
| prevSubject = prevVtapNetwork; |
| } |
| |
| /** |
| * Creates an event with previous openstack vtap subject. |
| * |
| * The openstack vtap subject is null if the type is removed |
| * The previous openstack vtap subject is null if the type is added |
| * |
| * @param type openstack vtap event type |
| * @param vtap event openstack vtap subject |
| * @param prevVtap previous openstack vtap subject |
| */ |
| public OpenstackVtapEvent(Type type, OpenstackVtap vtap, OpenstackVtap prevVtap) { |
| super(type, vtap); |
| prevSubject = prevVtap; |
| } |
| |
| /** |
| * Creates an event of a given type and for the specified openstack vtap and time. |
| * |
| * @param type openstack vtap event type |
| * @param vtap event openstack vtap subject |
| * @param prevVtap previous openstack vtap subject |
| * @param time occurrence time |
| */ |
| public OpenstackVtapEvent(Type type, OpenstackVtap vtap, OpenstackVtap prevVtap, long time) { |
| super(type, vtap, time); |
| prevSubject = prevVtap; |
| } |
| |
| /** |
| * Gets the previous subject in this openstack vtap event. |
| * |
| * @return the previous subject, or null if previous subject is not |
| * specified. |
| */ |
| public Object prevSubject() { |
| return prevSubject; |
| } |
| |
| /** |
| * Gets the openstack vtap network in this openstack vtap event. |
| * |
| * @return the subject, or null if the type is removed |
| */ |
| public OpenstackVtapNetwork openstackVtapNetwork() { |
| Object obj = subject(); |
| checkState(obj == null || obj instanceof OpenstackVtapNetwork, INVALID_OBJ_TYPE, obj); |
| return (OpenstackVtapNetwork) obj; |
| } |
| |
| /** |
| * Gets the previous openstack vtap network in this openstack vtap event. |
| * |
| * @return the previous subject, or null if type is added |
| */ |
| public OpenstackVtapNetwork prevOpenstackVtapNetwork() { |
| Object obj = prevSubject; |
| checkState(obj == null || obj instanceof OpenstackVtapNetwork, INVALID_OBJ_TYPE, obj); |
| return (OpenstackVtapNetwork) obj; |
| } |
| |
| /** |
| * Gets the openstack vtap in this openstack vtap event. |
| * |
| * @return the subject, or null if the type is removed |
| */ |
| public OpenstackVtap openstackVtap() { |
| Object obj = subject(); |
| checkState(obj == null || obj instanceof OpenstackVtap, INVALID_OBJ_TYPE, obj); |
| return (OpenstackVtap) obj; |
| } |
| |
| /** |
| * Gets the previous openstack vtap in this openstack vtap event. |
| * |
| * @return the previous subject, or null if type is added |
| */ |
| public OpenstackVtap prevOpenstackVtap() { |
| Object obj = prevSubject; |
| checkState(obj == null || obj instanceof OpenstackVtap, INVALID_OBJ_TYPE, obj); |
| return (OpenstackVtap) obj; |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this) |
| .add("time", Tools.defaultOffsetDataTime(time())) |
| .add("type", type()) |
| .add("subject", subject()) |
| .add("prevSubject", prevSubject()) |
| .toString(); |
| } |
| } |