| /* |
| * 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.store.flow.impl; |
| |
| import java.util.List; |
| import java.util.Objects; |
| |
| import org.onosproject.cluster.NodeId; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| |
| /** |
| * Device term context. |
| */ |
| public class DeviceReplicaInfo { |
| private final long term; |
| private final NodeId master; |
| private final List<NodeId> backups; |
| |
| public DeviceReplicaInfo(long term, NodeId master, List<NodeId> backups) { |
| this.term = term; |
| this.master = master; |
| this.backups = backups; |
| } |
| |
| /** |
| * Returns the mastership term. |
| * |
| * @return the mastership term |
| */ |
| public long term() { |
| return term; |
| } |
| |
| /** |
| * Returns the master for the {@link #term()}. |
| * |
| * @return the master {@link NodeId} for the current {@link #term()} |
| */ |
| public NodeId master() { |
| return master; |
| } |
| |
| /** |
| * Returns a boolean indicating whether the given {@link NodeId} is the current master. |
| * |
| * @param nodeId the node ID to check |
| * @return indicates whether the given node identifier is the identifier of the current master |
| */ |
| public boolean isMaster(NodeId nodeId) { |
| return Objects.equals(master, nodeId); |
| } |
| |
| /** |
| * Returns a list of all active backup nodes in priority order. |
| * <p> |
| * The returned backups are limited by the flow rule store's configured backup count. |
| * |
| * @return a list of backup nodes in priority order |
| */ |
| public List<NodeId> backups() { |
| return backups; |
| } |
| |
| /** |
| * Returns a boolean indicating whether the given node is a backup. |
| * |
| * @param nodeId the node identifier |
| * @return indicates whether the given node is a backup |
| */ |
| public boolean isBackup(NodeId nodeId) { |
| return backups.contains(nodeId); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(term, master, backups); |
| } |
| |
| @Override |
| public boolean equals(Object object) { |
| if (object instanceof DeviceReplicaInfo) { |
| DeviceReplicaInfo that = (DeviceReplicaInfo) object; |
| return this.term == that.term |
| && Objects.equals(this.master, that.master) |
| && Objects.equals(this.backups, that.backups); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this) |
| .add("term", term()) |
| .add("master", master()) |
| .add("backups", backups()) |
| .toString(); |
| } |
| } |