| /* |
| * Copyright 2015-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.net.config; |
| |
| import org.joda.time.LocalDateTime; |
| import org.onosproject.event.AbstractEvent; |
| |
| import java.util.Optional; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| |
| /** |
| * Describes network configuration event. |
| */ |
| public class NetworkConfigEvent extends AbstractEvent<NetworkConfigEvent.Type, Object> { |
| |
| private final Class configClass; |
| private final Config config; |
| private final Config prevConfig; |
| |
| /** |
| * Type of network configuration events. |
| */ |
| public enum Type { |
| /** |
| * Signifies that a network configuration was registered. |
| */ |
| CONFIG_REGISTERED, |
| |
| /** |
| * Signifies that a network configuration was unregistered. |
| */ |
| CONFIG_UNREGISTERED, |
| |
| /** |
| * Signifies that network configuration was added. |
| */ |
| CONFIG_ADDED, |
| |
| /** |
| * Signifies that network configuration was updated. |
| */ |
| CONFIG_UPDATED, |
| |
| /** |
| * Signifies that network configuration was removed. |
| */ |
| CONFIG_REMOVED |
| } |
| |
| /** |
| * Creates an event of a given type and for the specified subject and the |
| * current time. |
| * |
| * @param type event type |
| * @param subject event subject |
| * @param configClass configuration class |
| */ |
| public NetworkConfigEvent(Type type, Object subject, Class configClass) { |
| super(type, subject); |
| this.configClass = configClass; |
| this.config = null; |
| this.prevConfig = null; |
| } |
| |
| /** |
| * Creates an event of a given type and for the specified subject and time. |
| * |
| * @param type device event type |
| * @param subject event subject |
| * @param configClass configuration class |
| * @param time occurrence time |
| */ |
| public NetworkConfigEvent(Type type, Object subject, Class configClass, long time) { |
| super(type, subject, time); |
| this.configClass = configClass; |
| this.config = null; |
| this.prevConfig = null; |
| } |
| |
| /** |
| * Creates an event of a given type and for the specified subject, |
| * previous config and time. |
| * |
| * @param type device event type |
| * @param subject event subject |
| * @param configClass configuration class |
| * @param config current config |
| * @param prevConfig previous config |
| */ |
| public NetworkConfigEvent(Type type, Object subject, Config config, |
| Config prevConfig, Class configClass) { |
| super(type, subject); |
| this.configClass = configClass; |
| this.config = config; |
| this.prevConfig = prevConfig; |
| } |
| |
| /** |
| * Returns the class of configuration that has been changed. |
| * |
| * @return configuration class |
| */ |
| public Class configClass() { |
| return configClass; |
| } |
| |
| /** |
| * Returns current config. |
| * |
| * @return current config; value presents only when the type is |
| * CONFIG_ADDED or CONFIG_UPDATED |
| */ |
| public Optional<Config> config() { |
| return (config != null) ? Optional.of(config) : Optional.empty(); |
| } |
| |
| /** |
| * Returns previous config. |
| * |
| * @return previous config; value presents only when the type is |
| * CONFIG_UPDATED or CONFIG_REMOVED |
| */ |
| public Optional<Config> prevConfig() { |
| return (prevConfig != null) ? Optional.of(prevConfig) : Optional.empty(); |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this) |
| .add("time", new LocalDateTime(time())) |
| .add("type", type()) |
| .add("config", config()) |
| .add("prevConfig", prevConfig()) |
| .add("configClass", configClass()) |
| .toString(); |
| } |
| } |